./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product51.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_cfe216aa-a32d-481c-b400-ff5fdca69860/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe216aa-a32d-481c-b400-ff5fdca69860/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_cfe216aa-a32d-481c-b400-ff5fdca69860/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe216aa-a32d-481c-b400-ff5fdca69860/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product51.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe216aa-a32d-481c-b400-ff5fdca69860/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_cfe216aa-a32d-481c-b400-ff5fdca69860/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 1ef39c14b0f41147d1df64069011556a64ce74ff520b071f62407c2225292c50 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 02:41:06,767 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:41:06,769 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:41:06,808 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:41:06,809 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:41:06,810 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:41:06,812 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:41:06,814 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:41:06,816 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:41:06,818 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:41:06,819 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:41:06,820 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:41:06,821 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:41:06,822 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:41:06,824 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:41:06,826 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:41:06,827 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:41:06,828 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:41:06,831 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:41:06,834 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:41:06,836 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:41:06,838 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:41:06,839 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:41:06,840 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:41:06,844 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:41:06,845 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:41:06,845 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:41:06,846 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:41:06,847 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:41:06,848 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:41:06,849 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:41:06,850 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:41:06,851 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:41:06,852 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:41:06,853 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:41:06,854 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:41:06,855 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:41:06,856 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:41:06,856 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:41:06,857 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:41:06,858 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:41:06,859 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe216aa-a32d-481c-b400-ff5fdca69860/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 02:41:06,885 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:41:06,885 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:41:06,885 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:41:06,886 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:41:06,886 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 02:41:06,887 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 02:41:06,887 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 02:41:06,887 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 02:41:06,887 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 02:41:06,888 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 02:41:06,888 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 02:41:06,888 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 02:41:06,889 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 02:41:06,889 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 02:41:06,889 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 02:41:06,889 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 02:41:06,890 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 02:41:06,890 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 02:41:06,891 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:41:06,891 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 02:41:06,891 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:41:06,892 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 02:41:06,892 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:41:06,892 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:41:06,892 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:41:06,893 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:41:06,893 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 02:41:06,893 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:41:06,893 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:41:06,894 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:41:06,894 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:41:06,894 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:41:06,895 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:41:06,895 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:41:06,895 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:41:06,895 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:41:06,896 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 02:41:06,896 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:41:06,896 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:41:06,896 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:41:06,897 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 02:41:06,897 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_cfe216aa-a32d-481c-b400-ff5fdca69860/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe216aa-a32d-481c-b400-ff5fdca69860/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ef39c14b0f41147d1df64069011556a64ce74ff520b071f62407c2225292c50 [2021-11-23 02:41:07,161 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:41:07,187 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:41:07,190 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:41:07,191 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:41:07,192 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:41:07,194 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe216aa-a32d-481c-b400-ff5fdca69860/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/product-lines/minepump_spec5_product51.cil.c [2021-11-23 02:41:07,275 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe216aa-a32d-481c-b400-ff5fdca69860/bin/utaipan-EQgc7hIp5V/data/26b3a0a10/f4dcbd3110fb444fb5233179214ed4cd/FLAG56700fe64 [2021-11-23 02:41:07,763 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:41:07,764 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe216aa-a32d-481c-b400-ff5fdca69860/sv-benchmarks/c/product-lines/minepump_spec5_product51.cil.c [2021-11-23 02:41:07,782 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe216aa-a32d-481c-b400-ff5fdca69860/bin/utaipan-EQgc7hIp5V/data/26b3a0a10/f4dcbd3110fb444fb5233179214ed4cd/FLAG56700fe64 [2021-11-23 02:41:08,111 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe216aa-a32d-481c-b400-ff5fdca69860/bin/utaipan-EQgc7hIp5V/data/26b3a0a10/f4dcbd3110fb444fb5233179214ed4cd [2021-11-23 02:41:08,114 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:41:08,115 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:41:08,117 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:41:08,117 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:41:08,121 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:41:08,122 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:41:08" (1/1) ... [2021-11-23 02:41:08,123 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2593a3b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:08, skipping insertion in model container [2021-11-23 02:41:08,123 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:41:08" (1/1) ... [2021-11-23 02:41:08,131 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:41:08,189 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:41:08,482 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_cfe216aa-a32d-481c-b400-ff5fdca69860/sv-benchmarks/c/product-lines/minepump_spec5_product51.cil.c[18485,18498] [2021-11-23 02:41:08,487 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:41:08,496 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:41:08,574 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_cfe216aa-a32d-481c-b400-ff5fdca69860/sv-benchmarks/c/product-lines/minepump_spec5_product51.cil.c[18485,18498] [2021-11-23 02:41:08,576 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:41:08,595 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:41:08,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:08 WrapperNode [2021-11-23 02:41:08,600 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:41:08,610 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:41:08,610 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:41:08,611 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:41:08,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:08" (1/1) ... [2021-11-23 02:41:08,639 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:08" (1/1) ... [2021-11-23 02:41:08,672 INFO L137 Inliner]: procedures = 58, calls = 159, calls flagged for inlining = 25, calls inlined = 21, statements flattened = 265 [2021-11-23 02:41:08,672 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:41:08,673 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:41:08,673 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:41:08,674 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:41:08,682 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:08" (1/1) ... [2021-11-23 02:41:08,683 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:08" (1/1) ... [2021-11-23 02:41:08,687 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:08" (1/1) ... [2021-11-23 02:41:08,703 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:08" (1/1) ... [2021-11-23 02:41:08,711 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:08" (1/1) ... [2021-11-23 02:41:08,717 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:08" (1/1) ... [2021-11-23 02:41:08,730 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:08" (1/1) ... [2021-11-23 02:41:08,733 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:41:08,734 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:41:08,735 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:41:08,735 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:41:08,747 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:08" (1/1) ... [2021-11-23 02:41:08,754 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:41:08,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe216aa-a32d-481c-b400-ff5fdca69860/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:41:08,788 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe216aa-a32d-481c-b400-ff5fdca69860/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:41:08,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe216aa-a32d-481c-b400-ff5fdca69860/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:41:08,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:41:08,849 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-11-23 02:41:08,849 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-11-23 02:41:08,849 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-11-23 02:41:08,850 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-11-23 02:41:08,850 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-11-23 02:41:08,850 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-11-23 02:41:08,850 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2021-11-23 02:41:08,850 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2021-11-23 02:41:08,851 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-11-23 02:41:08,851 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-11-23 02:41:08,851 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-11-23 02:41:08,851 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-11-23 02:41:08,851 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-11-23 02:41:08,852 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-11-23 02:41:08,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:41:08,852 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-11-23 02:41:08,853 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-11-23 02:41:08,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:41:08,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:41:08,955 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:41:08,958 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:41:09,351 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:41:09,436 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:41:09,436 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-23 02:41:09,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:41:09 BoogieIcfgContainer [2021-11-23 02:41:09,439 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:41:09,441 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:41:09,441 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:41:09,444 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:41:09,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:41:08" (1/3) ... [2021-11-23 02:41:09,446 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@224ec74a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:41:09, skipping insertion in model container [2021-11-23 02:41:09,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:08" (2/3) ... [2021-11-23 02:41:09,446 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@224ec74a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:41:09, skipping insertion in model container [2021-11-23 02:41:09,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:41:09" (3/3) ... [2021-11-23 02:41:09,448 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product51.cil.c [2021-11-23 02:41:09,473 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:41:09,473 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 02:41:09,526 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:41:09,533 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 02:41:09,533 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 02:41:09,552 INFO L276 IsEmpty]: Start isEmpty. Operand has 66 states, 42 states have (on average 1.4523809523809523) internal successors, (61), 51 states have internal predecessors, (61), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2021-11-23 02:41:09,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-23 02:41:09,561 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:41:09,561 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:41:09,562 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:41:09,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:41:09,568 INFO L85 PathProgramCache]: Analyzing trace with hash -51587778, now seen corresponding path program 1 times [2021-11-23 02:41:09,578 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:41:09,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794751144] [2021-11-23 02:41:09,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:41:09,580 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:41:09,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:41:09,767 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 02:41:09,767 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:41:09,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794751144] [2021-11-23 02:41:09,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794751144] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:41:09,769 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:41:09,769 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 02:41:09,771 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768217818] [2021-11-23 02:41:09,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:41:09,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 02:41:09,777 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:41:09,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 02:41:09,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 02:41:09,809 INFO L87 Difference]: Start difference. First operand has 66 states, 42 states have (on average 1.4523809523809523) internal successors, (61), 51 states have internal predecessors, (61), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 02:41:09,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:41:09,898 INFO L93 Difference]: Finished difference Result 130 states and 179 transitions. [2021-11-23 02:41:09,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 02:41:09,901 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2021-11-23 02:41:09,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:41:09,913 INFO L225 Difference]: With dead ends: 130 [2021-11-23 02:41:09,913 INFO L226 Difference]: Without dead ends: 61 [2021-11-23 02:41:09,919 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 02:41:09,926 INFO L933 BasicCegarLoop]: 69 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:41:09,927 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 69 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:41:09,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2021-11-23 02:41:09,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2021-11-23 02:41:09,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 39 states have (on average 1.358974358974359) internal successors, (53), 47 states have internal predecessors, (53), 14 states have call successors, (14), 8 states have call predecessors, (14), 7 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-23 02:41:09,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 80 transitions. [2021-11-23 02:41:09,996 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 80 transitions. Word has length 21 [2021-11-23 02:41:09,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:41:09,997 INFO L470 AbstractCegarLoop]: Abstraction has 61 states and 80 transitions. [2021-11-23 02:41:09,997 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 02:41:09,998 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 80 transitions. [2021-11-23 02:41:10,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-23 02:41:10,004 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:41:10,004 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:41:10,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 02:41:10,005 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:41:10,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:41:10,009 INFO L85 PathProgramCache]: Analyzing trace with hash -421310611, now seen corresponding path program 1 times [2021-11-23 02:41:10,010 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:41:10,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598233798] [2021-11-23 02:41:10,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:41:10,010 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:41:10,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:41:10,153 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 02:41:10,153 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:41:10,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598233798] [2021-11-23 02:41:10,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598233798] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:41:10,154 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:41:10,155 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:41:10,156 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10344992] [2021-11-23 02:41:10,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:41:10,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:41:10,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:41:10,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:41:10,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:41:10,164 INFO L87 Difference]: Start difference. First operand 61 states and 80 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 02:41:10,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:41:10,246 INFO L93 Difference]: Finished difference Result 94 states and 122 transitions. [2021-11-23 02:41:10,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:41:10,247 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2021-11-23 02:41:10,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:41:10,255 INFO L225 Difference]: With dead ends: 94 [2021-11-23 02:41:10,255 INFO L226 Difference]: Without dead ends: 53 [2021-11-23 02:41:10,256 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 02:41:10,258 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 14 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:41:10,258 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 93 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:41:10,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-11-23 02:41:10,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2021-11-23 02:41:10,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 34 states have (on average 1.3823529411764706) internal successors, (47), 42 states have internal predecessors, (47), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 8 states have call predecessors, (11), 11 states have call successors, (11) [2021-11-23 02:41:10,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 69 transitions. [2021-11-23 02:41:10,269 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 69 transitions. Word has length 22 [2021-11-23 02:41:10,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:41:10,270 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 69 transitions. [2021-11-23 02:41:10,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 02:41:10,270 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 69 transitions. [2021-11-23 02:41:10,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-23 02:41:10,271 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:41:10,272 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 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 02:41:10,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 02:41:10,272 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:41:10,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:41:10,273 INFO L85 PathProgramCache]: Analyzing trace with hash -354328816, now seen corresponding path program 1 times [2021-11-23 02:41:10,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:41:10,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940031204] [2021-11-23 02:41:10,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:41:10,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:41:10,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:41:10,396 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 02:41:10,396 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:41:10,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940031204] [2021-11-23 02:41:10,396 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940031204] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:41:10,397 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:41:10,397 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:41:10,397 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334391360] [2021-11-23 02:41:10,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:41:10,398 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:41:10,398 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:41:10,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:41:10,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:41:10,399 INFO L87 Difference]: Start difference. First operand 53 states and 69 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 02:41:10,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:41:10,613 INFO L93 Difference]: Finished difference Result 154 states and 207 transitions. [2021-11-23 02:41:10,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:41:10,614 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 25 [2021-11-23 02:41:10,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:41:10,617 INFO L225 Difference]: With dead ends: 154 [2021-11-23 02:41:10,617 INFO L226 Difference]: Without dead ends: 103 [2021-11-23 02:41:10,618 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 02:41:10,619 INFO L933 BasicCegarLoop]: 70 mSDtfsCounter, 81 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:41:10,620 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [81 Valid, 163 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:41:10,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2021-11-23 02:41:10,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 86. [2021-11-23 02:41:10,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 56 states have (on average 1.375) internal successors, (77), 67 states have internal predecessors, (77), 17 states have call successors, (17), 12 states have call predecessors, (17), 12 states have return successors, (18), 13 states have call predecessors, (18), 17 states have call successors, (18) [2021-11-23 02:41:10,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 112 transitions. [2021-11-23 02:41:10,639 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 112 transitions. Word has length 25 [2021-11-23 02:41:10,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:41:10,639 INFO L470 AbstractCegarLoop]: Abstraction has 86 states and 112 transitions. [2021-11-23 02:41:10,639 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 02:41:10,640 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 112 transitions. [2021-11-23 02:41:10,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-23 02:41:10,641 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:41:10,641 INFO L514 BasicCegarLoop]: trace histogram [2, 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] [2021-11-23 02:41:10,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 02:41:10,642 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:41:10,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:41:10,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1724918103, now seen corresponding path program 1 times [2021-11-23 02:41:10,643 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:41:10,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824655800] [2021-11-23 02:41:10,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:41:10,643 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:41:10,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:41:10,732 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 02:41:10,732 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:41:10,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824655800] [2021-11-23 02:41:10,733 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824655800] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:41:10,733 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:41:10,733 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 02:41:10,733 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034493480] [2021-11-23 02:41:10,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:41:10,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 02:41:10,734 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:41:10,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 02:41:10,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-23 02:41:10,735 INFO L87 Difference]: Start difference. First operand 86 states and 112 transitions. Second operand has 6 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 02:41:10,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:41:10,941 INFO L93 Difference]: Finished difference Result 209 states and 282 transitions. [2021-11-23 02:41:10,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 02:41:10,941 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2021-11-23 02:41:10,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:41:10,944 INFO L225 Difference]: With dead ends: 209 [2021-11-23 02:41:10,944 INFO L226 Difference]: Without dead ends: 125 [2021-11-23 02:41:10,946 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-23 02:41:10,948 INFO L933 BasicCegarLoop]: 67 mSDtfsCounter, 34 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:41:10,948 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 283 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 02:41:10,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2021-11-23 02:41:10,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 118. [2021-11-23 02:41:10,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 79 states have (on average 1.2911392405063291) internal successors, (102), 89 states have internal predecessors, (102), 21 states have call successors, (21), 17 states have call predecessors, (21), 17 states have return successors, (27), 20 states have call predecessors, (27), 21 states have call successors, (27) [2021-11-23 02:41:10,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 150 transitions. [2021-11-23 02:41:10,969 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 150 transitions. Word has length 28 [2021-11-23 02:41:10,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:41:10,970 INFO L470 AbstractCegarLoop]: Abstraction has 118 states and 150 transitions. [2021-11-23 02:41:10,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 02:41:10,970 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 150 transitions. [2021-11-23 02:41:10,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-23 02:41:10,973 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:41:10,973 INFO L514 BasicCegarLoop]: trace histogram [2, 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, 1, 1, 1, 1] [2021-11-23 02:41:10,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 02:41:10,974 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:41:10,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:41:10,975 INFO L85 PathProgramCache]: Analyzing trace with hash -1342169840, now seen corresponding path program 1 times [2021-11-23 02:41:10,975 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:41:10,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938717741] [2021-11-23 02:41:10,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:41:10,976 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:41:10,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:41:11,168 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 02:41:11,168 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:41:11,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938717741] [2021-11-23 02:41:11,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938717741] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:41:11,169 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:41:11,169 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-23 02:41:11,169 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617720745] [2021-11-23 02:41:11,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:41:11,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-23 02:41:11,170 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:41:11,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-23 02:41:11,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-23 02:41:11,171 INFO L87 Difference]: Start difference. First operand 118 states and 150 transitions. Second operand has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-23 02:41:11,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:41:11,406 INFO L93 Difference]: Finished difference Result 370 states and 474 transitions. [2021-11-23 02:41:11,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 02:41:11,407 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 33 [2021-11-23 02:41:11,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:41:11,411 INFO L225 Difference]: With dead ends: 370 [2021-11-23 02:41:11,411 INFO L226 Difference]: Without dead ends: 254 [2021-11-23 02:41:11,412 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-11-23 02:41:11,414 INFO L933 BasicCegarLoop]: 92 mSDtfsCounter, 99 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:41:11,414 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 300 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 02:41:11,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2021-11-23 02:41:11,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 249. [2021-11-23 02:41:11,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 166 states have (on average 1.2891566265060241) internal successors, (214), 185 states have internal predecessors, (214), 45 states have call successors, (45), 38 states have call predecessors, (45), 37 states have return successors, (59), 40 states have call predecessors, (59), 45 states have call successors, (59) [2021-11-23 02:41:11,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 318 transitions. [2021-11-23 02:41:11,498 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 318 transitions. Word has length 33 [2021-11-23 02:41:11,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:41:11,499 INFO L470 AbstractCegarLoop]: Abstraction has 249 states and 318 transitions. [2021-11-23 02:41:11,499 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-23 02:41:11,499 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 318 transitions. [2021-11-23 02:41:11,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-23 02:41:11,502 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:41:11,502 INFO L514 BasicCegarLoop]: trace histogram [2, 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, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:41:11,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 02:41:11,515 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:41:11,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:41:11,516 INFO L85 PathProgramCache]: Analyzing trace with hash -902427270, now seen corresponding path program 1 times [2021-11-23 02:41:11,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:41:11,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981712836] [2021-11-23 02:41:11,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:41:11,517 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:41:11,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:41:11,694 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 02:41:11,694 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:41:11,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981712836] [2021-11-23 02:41:11,695 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981712836] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:41:11,695 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:41:11,695 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-23 02:41:11,695 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202906266] [2021-11-23 02:41:11,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:41:11,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 02:41:11,697 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:41:11,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 02:41:11,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-23 02:41:11,699 INFO L87 Difference]: Start difference. First operand 249 states and 318 transitions. Second operand has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 4 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-23 02:41:12,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:41:12,240 INFO L93 Difference]: Finished difference Result 557 states and 734 transitions. [2021-11-23 02:41:12,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-23 02:41:12,241 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 4 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 36 [2021-11-23 02:41:12,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:41:12,247 INFO L225 Difference]: With dead ends: 557 [2021-11-23 02:41:12,247 INFO L226 Difference]: Without dead ends: 401 [2021-11-23 02:41:12,250 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2021-11-23 02:41:12,251 INFO L933 BasicCegarLoop]: 87 mSDtfsCounter, 233 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 02:41:12,252 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [239 Valid, 285 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 02:41:12,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2021-11-23 02:41:12,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 347. [2021-11-23 02:41:12,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 235 states have (on average 1.2808510638297872) internal successors, (301), 261 states have internal predecessors, (301), 60 states have call successors, (60), 47 states have call predecessors, (60), 51 states have return successors, (82), 58 states have call predecessors, (82), 60 states have call successors, (82) [2021-11-23 02:41:12,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 443 transitions. [2021-11-23 02:41:12,311 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 443 transitions. Word has length 36 [2021-11-23 02:41:12,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:41:12,312 INFO L470 AbstractCegarLoop]: Abstraction has 347 states and 443 transitions. [2021-11-23 02:41:12,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 4 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-23 02:41:12,312 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 443 transitions. [2021-11-23 02:41:12,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-23 02:41:12,316 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:41:12,316 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 02:41:12,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 02:41:12,317 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:41:12,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:41:12,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1121294904, now seen corresponding path program 1 times [2021-11-23 02:41:12,318 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:41:12,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302269136] [2021-11-23 02:41:12,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:41:12,318 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:41:12,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:41:12,365 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-23 02:41:12,366 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:41:12,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302269136] [2021-11-23 02:41:12,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302269136] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:41:12,366 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:41:12,366 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:41:12,366 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897672746] [2021-11-23 02:41:12,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:41:12,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:41:12,367 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:41:12,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:41:12,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:41:12,368 INFO L87 Difference]: Start difference. First operand 347 states and 443 transitions. Second operand has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2021-11-23 02:41:12,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:41:12,474 INFO L93 Difference]: Finished difference Result 698 states and 890 transitions. [2021-11-23 02:41:12,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:41:12,475 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 65 [2021-11-23 02:41:12,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:41:12,480 INFO L225 Difference]: With dead ends: 698 [2021-11-23 02:41:12,481 INFO L226 Difference]: Without dead ends: 247 [2021-11-23 02:41:12,482 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:41:12,486 INFO L933 BasicCegarLoop]: 80 mSDtfsCounter, 94 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:41:12,487 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 128 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:41:12,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2021-11-23 02:41:12,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 247. [2021-11-23 02:41:12,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 167 states have (on average 1.2395209580838322) internal successors, (207), 184 states have internal predecessors, (207), 42 states have call successors, (42), 32 states have call predecessors, (42), 37 states have return successors, (57), 42 states have call predecessors, (57), 42 states have call successors, (57) [2021-11-23 02:41:12,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 306 transitions. [2021-11-23 02:41:12,555 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 306 transitions. Word has length 65 [2021-11-23 02:41:12,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:41:12,555 INFO L470 AbstractCegarLoop]: Abstraction has 247 states and 306 transitions. [2021-11-23 02:41:12,556 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2021-11-23 02:41:12,556 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 306 transitions. [2021-11-23 02:41:12,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-23 02:41:12,562 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:41:12,563 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:41:12,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-23 02:41:12,564 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:41:12,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:41:12,565 INFO L85 PathProgramCache]: Analyzing trace with hash 641510741, now seen corresponding path program 1 times [2021-11-23 02:41:12,565 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:41:12,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760739726] [2021-11-23 02:41:12,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:41:12,566 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:41:12,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:41:12,635 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 02:41:12,636 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:41:12,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760739726] [2021-11-23 02:41:12,636 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760739726] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:41:12,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1460147667] [2021-11-23 02:41:12,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:41:12,637 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:41:12,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe216aa-a32d-481c-b400-ff5fdca69860/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:41:12,639 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe216aa-a32d-481c-b400-ff5fdca69860/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:41:12,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe216aa-a32d-481c-b400-ff5fdca69860/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 02:41:12,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:41:12,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-23 02:41:12,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:41:12,978 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:41:12,978 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:41:12,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1460147667] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:41:12,979 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 02:41:12,979 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2021-11-23 02:41:12,979 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541330571] [2021-11-23 02:41:12,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:41:12,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:41:12,980 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:41:12,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:41:12,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-23 02:41:12,981 INFO L87 Difference]: Start difference. First operand 247 states and 306 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2021-11-23 02:41:13,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:41:13,036 INFO L93 Difference]: Finished difference Result 369 states and 461 transitions. [2021-11-23 02:41:13,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:41:13,036 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 62 [2021-11-23 02:41:13,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:41:13,041 INFO L225 Difference]: With dead ends: 369 [2021-11-23 02:41:13,041 INFO L226 Difference]: Without dead ends: 237 [2021-11-23 02:41:13,042 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-23 02:41:13,045 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 30 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:41:13,048 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 113 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:41:13,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2021-11-23 02:41:13,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 237. [2021-11-23 02:41:13,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 160 states have (on average 1.2125) internal successors, (194), 176 states have internal predecessors, (194), 40 states have call successors, (40), 32 states have call predecessors, (40), 36 states have return successors, (47), 40 states have call predecessors, (47), 40 states have call successors, (47) [2021-11-23 02:41:13,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 281 transitions. [2021-11-23 02:41:13,086 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 281 transitions. Word has length 62 [2021-11-23 02:41:13,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:41:13,087 INFO L470 AbstractCegarLoop]: Abstraction has 237 states and 281 transitions. [2021-11-23 02:41:13,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2021-11-23 02:41:13,087 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 281 transitions. [2021-11-23 02:41:13,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-23 02:41:13,089 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:41:13,089 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1] [2021-11-23 02:41:13,126 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe216aa-a32d-481c-b400-ff5fdca69860/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 02:41:13,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe216aa-a32d-481c-b400-ff5fdca69860/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:41:13,315 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:41:13,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:41:13,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1725898309, now seen corresponding path program 1 times [2021-11-23 02:41:13,316 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:41:13,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572140352] [2021-11-23 02:41:13,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:41:13,316 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:41:13,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:41:13,419 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-23 02:41:13,420 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:41:13,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572140352] [2021-11-23 02:41:13,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572140352] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:41:13,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [971666716] [2021-11-23 02:41:13,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:41:13,421 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:41:13,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe216aa-a32d-481c-b400-ff5fdca69860/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:41:13,430 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe216aa-a32d-481c-b400-ff5fdca69860/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:41:13,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe216aa-a32d-481c-b400-ff5fdca69860/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 02:41:13,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:41:13,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-23 02:41:13,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:41:13,739 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 19 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:41:13,740 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:41:13,939 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-23 02:41:13,940 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [971666716] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:41:13,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1997263514] [2021-11-23 02:41:13,960 INFO L159 IcfgInterpreter]: Started Sifa with 42 locations of interest [2021-11-23 02:41:13,961 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:41:13,966 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:41:13,976 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:41:13,977 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:41:22,341 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 32 for LOIs [2021-11-23 02:41:22,349 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 29 for LOIs [2021-11-23 02:41:22,780 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 53 for LOIs [2021-11-23 02:41:22,795 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 72 for LOIs [2021-11-23 02:41:23,128 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 48 for LOIs [2021-11-23 02:41:23,134 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 02:41:27,930 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6741#(and (= |timeShift___utac_acc__Specification5_spec__3_~tmp~9#1| |timeShift_getWaterLevel_#res#1|) (= |timeShift_getWaterLevel_~retValue_acc~11#1| ~waterLevel~0) (<= 0 (+ 2147483648 |old(~pumpRunning~0)|)) (= ~head~0.offset 0) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~3#1| 2147483647) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~3#1| 0)) (<= |old(~pumpRunning~0)| 2147483647) (<= |#NULL.offset| 0) (= |timeShift_getWaterLevel_~retValue_acc~11#1| |timeShift_getWaterLevel_#res#1|) (= 1 ~systemActive~0) (<= 0 (+ |timeShift___utac_acc__Specification5_spec__3_~tmp___0~3#1| 2147483648)) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp~9#1| 2)) (<= ~methaneLevelCritical~0 0) (<= 0 ~head~0.base) (<= 0 (+ 2147483648 |timeShift_getWaterLevel_#res#1|)) (<= 0 ~methaneLevelCritical~0) (<= |timeShift_getWaterLevel_#res#1| 2147483647) (<= ~head~0.base 0) (<= 0 |#NULL.offset|) (= ~switchedOnBeforeTS~0 0) (<= 0 |#StackHeapBarrier|) (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~3#1|) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2021-11-23 02:41:27,930 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-23 02:41:27,931 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 02:41:27,931 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 13 [2021-11-23 02:41:27,931 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717595345] [2021-11-23 02:41:27,931 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 02:41:27,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-23 02:41:27,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:41:27,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-23 02:41:27,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=203, Invalid=1689, Unknown=0, NotChecked=0, Total=1892 [2021-11-23 02:41:27,934 INFO L87 Difference]: Start difference. First operand 237 states and 281 transitions. Second operand has 13 states, 10 states have (on average 7.9) internal successors, (79), 11 states have internal predecessors, (79), 5 states have call successors, (17), 4 states have call predecessors, (17), 7 states have return successors, (17), 8 states have call predecessors, (17), 5 states have call successors, (17) [2021-11-23 02:41:28,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:41:28,528 INFO L93 Difference]: Finished difference Result 308 states and 374 transitions. [2021-11-23 02:41:28,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-23 02:41:28,528 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 7.9) internal successors, (79), 11 states have internal predecessors, (79), 5 states have call successors, (17), 4 states have call predecessors, (17), 7 states have return successors, (17), 8 states have call predecessors, (17), 5 states have call successors, (17) Word has length 65 [2021-11-23 02:41:28,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:41:28,531 INFO L225 Difference]: With dead ends: 308 [2021-11-23 02:41:28,531 INFO L226 Difference]: Without dead ends: 306 [2021-11-23 02:41:28,533 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 167 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1121 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=332, Invalid=3090, Unknown=0, NotChecked=0, Total=3422 [2021-11-23 02:41:28,534 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 167 mSDsluCounter, 794 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 780 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 02:41:28,535 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 780 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 02:41:28,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2021-11-23 02:41:28,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 285. [2021-11-23 02:41:28,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 191 states have (on average 1.2041884816753927) internal successors, (230), 212 states have internal predecessors, (230), 49 states have call successors, (49), 40 states have call predecessors, (49), 44 states have return successors, (60), 48 states have call predecessors, (60), 49 states have call successors, (60) [2021-11-23 02:41:28,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 339 transitions. [2021-11-23 02:41:28,574 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 339 transitions. Word has length 65 [2021-11-23 02:41:28,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:41:28,575 INFO L470 AbstractCegarLoop]: Abstraction has 285 states and 339 transitions. [2021-11-23 02:41:28,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 7.9) internal successors, (79), 11 states have internal predecessors, (79), 5 states have call successors, (17), 4 states have call predecessors, (17), 7 states have return successors, (17), 8 states have call predecessors, (17), 5 states have call successors, (17) [2021-11-23 02:41:28,575 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 339 transitions. [2021-11-23 02:41:28,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-23 02:41:28,577 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:41:28,578 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:41:28,615 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe216aa-a32d-481c-b400-ff5fdca69860/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 02:41:28,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe216aa-a32d-481c-b400-ff5fdca69860/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:41:28,803 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:41:28,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:41:28,804 INFO L85 PathProgramCache]: Analyzing trace with hash -932444730, now seen corresponding path program 1 times [2021-11-23 02:41:28,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:41:28,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312094852] [2021-11-23 02:41:28,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:41:28,804 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:41:28,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:41:28,925 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 35 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-23 02:41:28,926 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:41:28,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312094852] [2021-11-23 02:41:28,926 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312094852] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:41:28,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1895149222] [2021-11-23 02:41:28,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:41:28,927 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:41:28,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe216aa-a32d-481c-b400-ff5fdca69860/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:41:28,939 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe216aa-a32d-481c-b400-ff5fdca69860/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:41:28,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe216aa-a32d-481c-b400-ff5fdca69860/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 02:41:29,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:41:29,059 INFO L263 TraceCheckSpWp]: Trace formula consists of 528 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-23 02:41:29,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:41:29,391 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 61 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 02:41:29,391 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:41:29,801 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 48 proven. 3 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-23 02:41:29,801 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1895149222] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:41:29,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [214833166] [2021-11-23 02:41:29,808 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2021-11-23 02:41:29,808 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:41:29,809 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:41:29,810 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:41:29,810 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:41:37,917 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 309 for LOIs [2021-11-23 02:41:37,971 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 30 for LOIs [2021-11-23 02:41:38,373 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 40 for LOIs [2021-11-23 02:41:38,381 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 29 for LOIs [2021-11-23 02:41:38,410 INFO L197 IcfgInterpreter]: Interpreting procedure deactivatePump with input of size 34 for LOIs [2021-11-23 02:41:38,414 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 02:41:43,343 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '8232#(and (= |timeShift___utac_acc__Specification5_spec__3_~tmp~9#1| |timeShift_getWaterLevel_#res#1|) (= |timeShift_getWaterLevel_~retValue_acc~11#1| ~waterLevel~0) (<= 0 |old(~pumpRunning~0)|) (= ~methaneLevelCritical~0 0) (= ~head~0.offset 0) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~3#1| 1) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~3#1| 0)) (<= |old(~pumpRunning~0)| 2147483647) (= |timeShift_getWaterLevel_~retValue_acc~11#1| |timeShift_getWaterLevel_#res#1|) (= 1 ~systemActive~0) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp~9#1| 2)) (<= 0 ~head~0.base) (<= 0 (+ 2147483648 |timeShift_getWaterLevel_#res#1|)) (<= |timeShift_getWaterLevel_#res#1| 2147483647) (<= 0 ~pumpRunning~0) (<= ~head~0.base 0) (= |#NULL.offset| 0) (= ~switchedOnBeforeTS~0 0) (<= 0 |#StackHeapBarrier|) (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~3#1|) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2021-11-23 02:41:43,344 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-23 02:41:43,344 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 02:41:43,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 9] total 20 [2021-11-23 02:41:43,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476280484] [2021-11-23 02:41:43,344 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 02:41:43,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-23 02:41:43,345 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:41:43,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-23 02:41:43,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=283, Invalid=2369, Unknown=0, NotChecked=0, Total=2652 [2021-11-23 02:41:43,347 INFO L87 Difference]: Start difference. First operand 285 states and 339 transitions. Second operand has 20 states, 20 states have (on average 5.35) internal successors, (107), 20 states have internal predecessors, (107), 9 states have call successors, (21), 5 states have call predecessors, (21), 8 states have return successors, (22), 10 states have call predecessors, (22), 9 states have call successors, (22) [2021-11-23 02:41:44,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:41:44,838 INFO L93 Difference]: Finished difference Result 848 states and 1107 transitions. [2021-11-23 02:41:44,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-23 02:41:44,839 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 5.35) internal successors, (107), 20 states have internal predecessors, (107), 9 states have call successors, (21), 5 states have call predecessors, (21), 8 states have return successors, (22), 10 states have call predecessors, (22), 9 states have call successors, (22) Word has length 86 [2021-11-23 02:41:44,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:41:44,849 INFO L225 Difference]: With dead ends: 848 [2021-11-23 02:41:44,849 INFO L226 Difference]: Without dead ends: 557 [2021-11-23 02:41:44,857 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 233 SyntacticMatches, 1 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2068 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=655, Invalid=5507, Unknown=0, NotChecked=0, Total=6162 [2021-11-23 02:41:44,858 INFO L933 BasicCegarLoop]: 86 mSDtfsCounter, 612 mSDsluCounter, 619 mSDsCounter, 0 mSdLazyCounter, 1039 mSolverCounterSat, 427 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 615 SdHoareTripleChecker+Valid, 632 SdHoareTripleChecker+Invalid, 1466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 427 IncrementalHoareTripleChecker+Valid, 1039 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-23 02:41:44,859 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [615 Valid, 632 Invalid, 1466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [427 Valid, 1039 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-23 02:41:44,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2021-11-23 02:41:44,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 346. [2021-11-23 02:41:44,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 233 states have (on average 1.167381974248927) internal successors, (272), 255 states have internal predecessors, (272), 56 states have call successors, (56), 50 states have call predecessors, (56), 56 states have return successors, (71), 57 states have call predecessors, (71), 56 states have call successors, (71) [2021-11-23 02:41:44,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 399 transitions. [2021-11-23 02:41:44,918 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 399 transitions. Word has length 86 [2021-11-23 02:41:44,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:41:44,918 INFO L470 AbstractCegarLoop]: Abstraction has 346 states and 399 transitions. [2021-11-23 02:41:44,926 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 5.35) internal successors, (107), 20 states have internal predecessors, (107), 9 states have call successors, (21), 5 states have call predecessors, (21), 8 states have return successors, (22), 10 states have call predecessors, (22), 9 states have call successors, (22) [2021-11-23 02:41:44,926 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 399 transitions. [2021-11-23 02:41:44,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-23 02:41:44,930 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:41:44,931 INFO L514 BasicCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:41:44,965 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe216aa-a32d-481c-b400-ff5fdca69860/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-23 02:41:45,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe216aa-a32d-481c-b400-ff5fdca69860/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:41:45,155 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:41:45,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:41:45,156 INFO L85 PathProgramCache]: Analyzing trace with hash -57351158, now seen corresponding path program 1 times [2021-11-23 02:41:45,156 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:41:45,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898342270] [2021-11-23 02:41:45,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:41:45,156 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:41:45,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:41:45,570 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 10 proven. 44 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-23 02:41:45,570 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:41:45,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898342270] [2021-11-23 02:41:45,570 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898342270] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:41:45,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [616158693] [2021-11-23 02:41:45,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:41:45,571 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:41:45,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe216aa-a32d-481c-b400-ff5fdca69860/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:41:45,572 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe216aa-a32d-481c-b400-ff5fdca69860/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:41:45,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe216aa-a32d-481c-b400-ff5fdca69860/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-23 02:41:45,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:41:45,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 542 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-23 02:41:45,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:41:46,147 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 57 proven. 16 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-23 02:41:46,147 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:41:46,692 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 52 proven. 5 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-23 02:41:46,692 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [616158693] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:41:46,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [385288200] [2021-11-23 02:41:46,695 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2021-11-23 02:41:46,696 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:41:46,696 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:41:46,696 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:41:46,697 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:41:51,759 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 55 for LOIs [2021-11-23 02:41:51,771 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 44 for LOIs [2021-11-23 02:41:52,173 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 40 for LOIs [2021-11-23 02:41:52,181 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 26 for LOIs [2021-11-23 02:41:52,219 INFO L197 IcfgInterpreter]: Interpreting procedure deactivatePump with input of size 34 for LOIs [2021-11-23 02:41:52,223 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 02:41:57,350 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '10697#(and (= |timeShift___utac_acc__Specification5_spec__3_~tmp~9#1| |timeShift_getWaterLevel_#res#1|) (= |timeShift_getWaterLevel_~retValue_acc~11#1| ~waterLevel~0) (<= 0 |old(~pumpRunning~0)|) (= ~methaneLevelCritical~0 0) (= ~head~0.offset 0) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~3#1| 1) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~3#1| 0)) (<= |old(~pumpRunning~0)| 2147483647) (= |timeShift_getWaterLevel_~retValue_acc~11#1| |timeShift_getWaterLevel_#res#1|) (= 1 ~systemActive~0) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp~9#1| 2)) (<= 0 ~head~0.base) (<= 0 (+ 2147483648 |timeShift_getWaterLevel_#res#1|)) (<= |timeShift_getWaterLevel_#res#1| 2147483647) (<= 0 ~pumpRunning~0) (<= ~head~0.base 0) (= |#NULL.offset| 0) (= ~switchedOnBeforeTS~0 0) (<= 0 |#StackHeapBarrier|) (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~3#1|) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2021-11-23 02:41:57,351 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-23 02:41:57,351 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 02:41:57,351 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 11, 11] total 34 [2021-11-23 02:41:57,351 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845899218] [2021-11-23 02:41:57,351 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 02:41:57,352 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-11-23 02:41:57,352 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:41:57,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-11-23 02:41:57,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=420, Invalid=3740, Unknown=0, NotChecked=0, Total=4160 [2021-11-23 02:41:57,355 INFO L87 Difference]: Start difference. First operand 346 states and 399 transitions. Second operand has 34 states, 32 states have (on average 4.65625) internal successors, (149), 33 states have internal predecessors, (149), 18 states have call successors, (29), 8 states have call predecessors, (29), 13 states have return successors, (27), 16 states have call predecessors, (27), 17 states have call successors, (27) [2021-11-23 02:41:59,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:41:59,885 INFO L93 Difference]: Finished difference Result 868 states and 1039 transitions. [2021-11-23 02:41:59,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-11-23 02:41:59,886 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 32 states have (on average 4.65625) internal successors, (149), 33 states have internal predecessors, (149), 18 states have call successors, (29), 8 states have call predecessors, (29), 13 states have return successors, (27), 16 states have call predecessors, (27), 17 states have call successors, (27) Word has length 91 [2021-11-23 02:41:59,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:41:59,887 INFO L225 Difference]: With dead ends: 868 [2021-11-23 02:41:59,887 INFO L226 Difference]: Without dead ends: 0 [2021-11-23 02:41:59,892 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 248 SyntacticMatches, 6 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4132 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=1236, Invalid=9684, Unknown=0, NotChecked=0, Total=10920 [2021-11-23 02:41:59,893 INFO L933 BasicCegarLoop]: 157 mSDtfsCounter, 1368 mSDsluCounter, 948 mSDsCounter, 0 mSdLazyCounter, 1581 mSolverCounterSat, 953 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1372 SdHoareTripleChecker+Valid, 999 SdHoareTripleChecker+Invalid, 2534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 953 IncrementalHoareTripleChecker+Valid, 1581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:41:59,893 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1372 Valid, 999 Invalid, 2534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [953 Valid, 1581 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-11-23 02:41:59,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-23 02:41:59,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-23 02:41:59,894 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 02:41:59,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-23 02:41:59,895 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 91 [2021-11-23 02:41:59,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:41:59,895 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-23 02:41:59,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 32 states have (on average 4.65625) internal successors, (149), 33 states have internal predecessors, (149), 18 states have call successors, (29), 8 states have call predecessors, (29), 13 states have return successors, (27), 16 states have call predecessors, (27), 17 states have call successors, (27) [2021-11-23 02:41:59,896 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-23 02:41:59,896 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 02:41:59,898 INFO L764 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-23 02:41:59,925 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe216aa-a32d-481c-b400-ff5fdca69860/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-23 02:42:00,112 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe216aa-a32d-481c-b400-ff5fdca69860/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-11-23 02:42:00,114 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-23 02:42:05,378 INFO L854 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 160 167) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 1))) (.cse1 (= 0 ~systemActive~0)) (.cse2 (not (<= 1 ~switchedOnBeforeTS~0))) (.cse3 (= ~pumpRunning~0 1))) (and (or (not (<= ~waterLevel~0 0)) .cse0 .cse1 .cse2 .cse3) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2 .cse3))) [2021-11-23 02:42:05,378 INFO L858 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 160 167) no Hoare annotation was computed. [2021-11-23 02:42:05,378 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 93 99) no Hoare annotation was computed. [2021-11-23 02:42:05,378 INFO L861 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 93 99) the Hoare annotation is: true [2021-11-23 02:42:05,379 INFO L861 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 877 888) the Hoare annotation is: true [2021-11-23 02:42:05,379 INFO L858 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 877 888) no Hoare annotation was computed. [2021-11-23 02:42:05,379 INFO L858 garLoopResultBuilder]: For program point cleanupEXIT(lines 279 308) no Hoare annotation was computed. [2021-11-23 02:42:05,379 INFO L861 garLoopResultBuilder]: At program point L289-2(lines 289 303) the Hoare annotation is: true [2021-11-23 02:42:05,379 INFO L861 garLoopResultBuilder]: At program point L285(line 285) the Hoare annotation is: true [2021-11-23 02:42:05,379 INFO L861 garLoopResultBuilder]: At program point cleanupENTRY(lines 279 308) the Hoare annotation is: true [2021-11-23 02:42:05,379 INFO L858 garLoopResultBuilder]: For program point L285-1(line 285) no Hoare annotation was computed. [2021-11-23 02:42:05,380 INFO L861 garLoopResultBuilder]: At program point L304(lines 279 308) the Hoare annotation is: true [2021-11-23 02:42:05,380 INFO L858 garLoopResultBuilder]: For program point L300(line 300) no Hoare annotation was computed. [2021-11-23 02:42:05,380 INFO L858 garLoopResultBuilder]: For program point L293(lines 293 297) no Hoare annotation was computed. [2021-11-23 02:42:05,380 INFO L861 garLoopResultBuilder]: At program point L293-1(lines 293 297) the Hoare annotation is: true [2021-11-23 02:42:05,380 INFO L854 garLoopResultBuilder]: At program point L977(line 977) the Hoare annotation is: (let ((.cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse6 (= 0 ~systemActive~0))) (let ((.cse2 (not .cse6)) (.cse4 (= ~pumpRunning~0 0)) (.cse7 (and .cse1 (= ~pumpRunning~0 1))) (.cse3 (not (<= 2 |old(~waterLevel~0)|))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (not (= |old(~pumpRunning~0)| 1))) (.cse10 (<= 1 ~switchedOnBeforeTS~0)) (.cse8 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (.cse9 (not (< |old(~waterLevel~0)| 3)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse2 (and .cse4 (or .cse1 (= ~waterLevel~0 1)))) (or (not (<= |old(~waterLevel~0)| 1)) .cse5 .cse6 .cse7 .cse8) (or .cse0 (and .cse4 .cse1) .cse6 .cse9) (or .cse5 .cse6 (not (<= |old(~waterLevel~0)| 2)) .cse7 .cse3) (or .cse0 .cse6 .cse10 .cse8 .cse9) (or .cse5 .cse6 .cse10 .cse8 .cse9)))) [2021-11-23 02:42:05,380 INFO L854 garLoopResultBuilder]: At program point L977-1(line 977) the Hoare annotation is: (let ((.cse5 (= ~pumpRunning~0 0)) (.cse6 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse0 (and .cse6 (<= 1 |timeShift___utac_acc__Specification5_spec__2_#t~ret51#1|) (= ~pumpRunning~0 1))) (.cse2 (not (= |old(~pumpRunning~0)| 1))) (.cse8 (not (<= |old(~waterLevel~0)| 2))) (.cse9 (not (<= 2 |old(~waterLevel~0)|))) (.cse1 (not (<= |old(~waterLevel~0)| 1))) (.cse4 (not (= |old(~pumpRunning~0)| 0))) (.cse7 (and .cse5 .cse6)) (.cse3 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 .cse3 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse4 (not .cse3) (and .cse5 (or .cse6 (= ~waterLevel~0 1)))) (or .cse4 .cse7 .cse8 .cse9) (or .cse0 .cse2 .cse3 .cse8 .cse9) (or .cse1 .cse4 .cse7 .cse3)))) [2021-11-23 02:42:05,380 INFO L858 garLoopResultBuilder]: For program point L73-2(lines 69 91) no Hoare annotation was computed. [2021-11-23 02:42:05,381 INFO L858 garLoopResultBuilder]: For program point L135(lines 135 143) no Hoare annotation was computed. [2021-11-23 02:42:05,381 INFO L854 garLoopResultBuilder]: At program point L131(lines 131 148) the Hoare annotation is: (let ((.cse5 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse6 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= |old(~pumpRunning~0)| 1))) (.cse3 (<= 1 ~switchedOnBeforeTS~0)) (.cse4 (= ~pumpRunning~0 1)) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 (and .cse2 .cse3 .cse4) (not (<= |old(~waterLevel~0)| 0)) .cse5) (or (not (= |old(~waterLevel~0)| 1)) (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse3 .cse4) .cse0 .cse1 .cse5) (or .cse6 (and (= ~pumpRunning~0 0) .cse2) (not (< |old(~waterLevel~0)| 3))) (or .cse6 (not .cse1)) (or .cse0 (and (= ~waterLevel~0 1) .cse3 .cse4) .cse1 (not (<= |old(~waterLevel~0)| 2)) (not (<= 2 |old(~waterLevel~0)|))))) [2021-11-23 02:42:05,381 INFO L858 garLoopResultBuilder]: For program point L994(lines 994 1004) no Hoare annotation was computed. [2021-11-23 02:42:05,381 INFO L858 garLoopResultBuilder]: For program point L990(lines 990 1007) no Hoare annotation was computed. [2021-11-23 02:42:05,381 INFO L854 garLoopResultBuilder]: At program point L990-1(lines 982 1010) the Hoare annotation is: (let ((.cse7 (= 0 ~systemActive~0))) (let ((.cse11 (not (<= |old(~waterLevel~0)| 1))) (.cse0 (= ~pumpRunning~0 0)) (.cse4 (not .cse7)) (.cse1 (= |timeShift___utac_acc__Specification5_spec__3_~tmp~9#1| ~waterLevel~0)) (.cse3 (<= 1 ~switchedOnBeforeTS~0)) (.cse5 (= ~pumpRunning~0 1)) (.cse6 (not (= |old(~pumpRunning~0)| 1))) (.cse8 (not (<= |old(~waterLevel~0)| 2))) (.cse12 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse9 (not (<= 2 |old(~waterLevel~0)|))) (.cse10 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (= ~waterLevel~0 1))) (and (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse1 .cse2 .cse3 .cse5) .cse6 .cse7 .cse8 .cse9) (or .cse10 .cse0 .cse4) (or .cse11 .cse10 (and .cse0 .cse4) .cse7) (or .cse10 .cse7 .cse8 (and .cse0 .cse1 .cse12 .cse4) .cse5) (let ((.cse13 (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) (< 0 |old(~waterLevel~0)|)))) (or .cse11 (and .cse0 (or .cse13 (and (<= |old(~waterLevel~0)| 0) .cse12)) .cse1 .cse3 .cse4) (and (<= ~waterLevel~0 0) .cse1 (or .cse13 .cse12) .cse3 .cse5) .cse6 .cse7 (not (<= 1 |old(~switchedOnBeforeTS~0)|)))) (or .cse10 .cse8 (and (< 1 |timeShift___utac_acc__Specification5_spec__3_~tmp~9#1|) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp~9#1| 2) .cse12) .cse9) (or .cse10 (not (= |old(~waterLevel~0)| 1)) .cse2)))) [2021-11-23 02:42:05,382 INFO L858 garLoopResultBuilder]: For program point L995(lines 995 1001) no Hoare annotation was computed. [2021-11-23 02:42:05,382 INFO L854 garLoopResultBuilder]: At program point L958(line 958) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 1))) (.cse1 (not (< |old(~waterLevel~0)| 3))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (= 0 ~systemActive~0))) (and (or .cse0 .cse1) (or .cse2 .cse3 (not (<= |old(~waterLevel~0)| 2)) (not (<= 2 |old(~waterLevel~0)|))) (or .cse2 .cse3 (not (<= 1 |old(~switchedOnBeforeTS~0)|)) .cse1) (or .cse0 (not .cse3)))) [2021-11-23 02:42:05,382 INFO L854 garLoopResultBuilder]: At program point L141(line 141) the Hoare annotation is: (let ((.cse5 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse3 (<= 1 ~switchedOnBeforeTS~0)) (.cse4 (= ~pumpRunning~0 1)) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 (not (< |old(~waterLevel~0)| 3))) (or .cse1 .cse2 (and (= |old(~waterLevel~0)| ~waterLevel~0) .cse3 .cse4) (not (<= |old(~waterLevel~0)| 0)) .cse5) (or (not (= |old(~waterLevel~0)| 1)) (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse3 .cse4) .cse1 .cse2 .cse5) (or .cse0 (not .cse2)) (or .cse1 (and (= ~waterLevel~0 1) .cse3 .cse4) .cse2 (not (<= |old(~waterLevel~0)| 2)) (not (<= 2 |old(~waterLevel~0)|))))) [2021-11-23 02:42:05,382 INFO L854 garLoopResultBuilder]: At program point L137(line 137) the Hoare annotation is: (let ((.cse5 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse3 (<= 1 ~switchedOnBeforeTS~0)) (.cse4 (= ~pumpRunning~0 1)) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 (not (< |old(~waterLevel~0)| 3))) (or .cse1 .cse2 (and (= |old(~waterLevel~0)| ~waterLevel~0) .cse3 .cse4) (not (<= |old(~waterLevel~0)| 0)) .cse5) (or (not (= |old(~waterLevel~0)| 1)) (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse3 .cse4) .cse1 .cse2 .cse5) (or .cse0 (not .cse2)) (or .cse1 (and (= ~waterLevel~0 1) .cse3 .cse4) .cse2 (not (<= |old(~waterLevel~0)| 2)) (not (<= 2 |old(~waterLevel~0)|))))) [2021-11-23 02:42:05,383 INFO L854 garLoopResultBuilder]: At program point L992(line 992) the Hoare annotation is: (let ((.cse3 (not (<= |old(~waterLevel~0)| 2))) (.cse4 (not (<= 2 |old(~waterLevel~0)|))) (.cse10 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse5 (= |timeShift___utac_acc__Specification5_spec__3_~tmp~9#1| ~waterLevel~0)) (.cse7 (<= 1 ~switchedOnBeforeTS~0)) (.cse8 (= ~pumpRunning~0 1)) (.cse9 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (= 0 ~systemActive~0)) (.cse11 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse12 (not (= |old(~waterLevel~0)| 1))) (.cse6 (= ~waterLevel~0 1))) (and (or .cse0 .cse1 (not .cse2)) (or .cse0 .cse3 .cse4) (or (and .cse5 .cse6 .cse7 .cse8) .cse9 (and .cse1 .cse5 .cse6 .cse7) .cse2 .cse3 .cse4) (or .cse0 (and .cse1 .cse5 .cse10) .cse2 (not (< |old(~waterLevel~0)| 3))) (or (and .cse5 .cse10 .cse7 .cse8) .cse9 (and .cse1 .cse5 .cse10 .cse7) .cse2 (not (<= |old(~waterLevel~0)| 0)) .cse11) (let ((.cse13 (= |old(~waterLevel~0)| (+ ~waterLevel~0 1))) (.cse14 (< 0 |old(~waterLevel~0)|))) (or .cse12 (and .cse1 .cse13 .cse14 .cse5 .cse7) (and .cse13 .cse14 .cse5 .cse7 .cse8) .cse9 .cse2 .cse11)) (or .cse0 .cse12 .cse6))) [2021-11-23 02:42:05,383 INFO L858 garLoopResultBuilder]: For program point L992-1(line 992) no Hoare annotation was computed. [2021-11-23 02:42:05,383 INFO L854 garLoopResultBuilder]: At program point L146(line 146) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (not (< |old(~waterLevel~0)| 3))) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 (not (<= |old(~waterLevel~0)| 2)) (not (<= 2 |old(~waterLevel~0)|))) (or .cse0 .cse1 (not (<= 1 |old(~switchedOnBeforeTS~0)|)) .cse2) (or .cse3 (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse2) (or .cse3 (not .cse1)))) [2021-11-23 02:42:05,383 INFO L854 garLoopResultBuilder]: At program point L146-1(lines 127 151) the Hoare annotation is: (let ((.cse4 (not (<= |old(~waterLevel~0)| 2))) (.cse5 (not (= |old(~pumpRunning~0)| 1))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse7 (<= 1 ~switchedOnBeforeTS~0)) (.cse3 (= ~pumpRunning~0 1)) (.cse11 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse8 (= 0 ~systemActive~0))) (and (or .cse0 (and .cse1 .cse2) (and (<= 2 ~waterLevel~0) .cse2 .cse3) .cse4) (let ((.cse6 (= ~waterLevel~0 1))) (or .cse5 (and .cse6 .cse7 .cse3) .cse8 .cse4 (not (<= 2 |old(~waterLevel~0)|)) (and .cse1 .cse6 .cse7))) (let ((.cse9 (= |old(~waterLevel~0)| (+ ~waterLevel~0 1))) (.cse10 (< 0 |old(~waterLevel~0)|))) (or (not (= |old(~waterLevel~0)| 1)) .cse5 (and .cse1 .cse9 .cse10 .cse7) (and .cse9 .cse10 .cse7 .cse3) .cse8 .cse11)) (or .cse5 (and .cse1 .cse2 .cse7) .cse8 (and .cse2 .cse7 .cse3) (not (<= |old(~waterLevel~0)| 0)) .cse11) (or .cse0 (not .cse8)))) [2021-11-23 02:42:05,383 INFO L854 garLoopResultBuilder]: At program point timeShiftENTRY(lines 66 92) the Hoare annotation is: (let ((.cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse6 (= 0 ~systemActive~0))) (let ((.cse2 (not .cse6)) (.cse4 (= ~pumpRunning~0 0)) (.cse7 (and .cse1 (= ~pumpRunning~0 1))) (.cse3 (not (<= 2 |old(~waterLevel~0)|))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (not (= |old(~pumpRunning~0)| 1))) (.cse10 (<= 1 ~switchedOnBeforeTS~0)) (.cse8 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (.cse9 (not (< |old(~waterLevel~0)| 3)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse2 (and .cse4 (or .cse1 (= ~waterLevel~0 1)))) (or (not (<= |old(~waterLevel~0)| 1)) .cse5 .cse6 .cse7 .cse8) (or .cse0 (and .cse4 .cse1) .cse6 .cse9) (or .cse5 .cse6 (not (<= |old(~waterLevel~0)| 2)) .cse7 .cse3) (or .cse0 .cse6 .cse10 .cse8 .cse9) (or .cse5 .cse6 .cse10 .cse8 .cse9)))) [2021-11-23 02:42:05,383 INFO L854 garLoopResultBuilder]: At program point L80-1(lines 80 86) the Hoare annotation is: (let ((.cse4 (not (<= |old(~waterLevel~0)| 2))) (.cse5 (not (<= 2 |old(~waterLevel~0)|))) (.cse7 (not (= |old(~pumpRunning~0)| 1))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= 0 ~systemActive~0)) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse9 (<= 1 ~switchedOnBeforeTS~0)) (.cse6 (= ~pumpRunning~0 1)) (.cse13 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse10 (not (= |old(~waterLevel~0)| 1))) (.cse8 (= ~waterLevel~0 1))) (and (or .cse0 .cse1 (not .cse2)) (or .cse0 .cse3 .cse4 .cse5) (or .cse0 (and .cse1 .cse3) (and (<= 2 ~waterLevel~0) .cse3 .cse6) .cse2 .cse4) (or .cse7 (and .cse8 .cse9 .cse6) .cse2 .cse4 .cse5 (and .cse1 .cse8 .cse9)) (let ((.cse11 (= |old(~waterLevel~0)| (+ ~waterLevel~0 1))) (.cse12 (< 0 |old(~waterLevel~0)|))) (or .cse10 .cse7 (and .cse1 .cse11 .cse12 .cse9) (and .cse11 .cse12 .cse9 .cse6) .cse2 .cse13)) (or .cse7 (and .cse1 .cse3 .cse9) .cse2 (and .cse3 .cse9 .cse6) (not (<= |old(~waterLevel~0)| 0)) .cse13) (or .cse0 .cse10 .cse8))) [2021-11-23 02:42:05,383 INFO L858 garLoopResultBuilder]: For program point timeShiftEXIT(lines 66 92) no Hoare annotation was computed. [2021-11-23 02:42:05,384 INFO L858 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 958) no Hoare annotation was computed. [2021-11-23 02:42:05,384 INFO L854 garLoopResultBuilder]: At program point L440(lines 391 441) the Hoare annotation is: false [2021-11-23 02:42:05,384 INFO L858 garLoopResultBuilder]: For program point L428(lines 428 434) no Hoare annotation was computed. [2021-11-23 02:42:05,384 INFO L854 garLoopResultBuilder]: At program point L428-2(lines 422 435) the Hoare annotation is: (let ((.cse6 (= 0 ~systemActive~0))) (let ((.cse1 (= |ULTIMATE.start_main_~tmp~4#1| 1)) (.cse3 (< ~waterLevel~0 3)) (.cse4 (not .cse6)) (.cse5 (= ~pumpRunning~0 1)) (.cse0 (= ~pumpRunning~0 0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3) (and (<= 2 ~waterLevel~0) .cse1 .cse2 (<= ~waterLevel~0 2) .cse4 .cse5) (and .cse1 .cse2 (<= 1 ~switchedOnBeforeTS~0) .cse3 .cse4 .cse5) (and .cse0 .cse2 .cse6)))) [2021-11-23 02:42:05,384 INFO L861 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-11-23 02:42:05,384 INFO L858 garLoopResultBuilder]: For program point L412(lines 412 418) no Hoare annotation was computed. [2021-11-23 02:42:05,384 INFO L858 garLoopResultBuilder]: For program point L412-1(lines 412 418) no Hoare annotation was computed. [2021-11-23 02:42:05,384 INFO L854 garLoopResultBuilder]: At program point L437(lines 392 439) the Hoare annotation is: (let ((.cse6 (= 0 ~systemActive~0))) (let ((.cse2 (<= ~waterLevel~0 2)) (.cse0 (= |ULTIMATE.start_main_~tmp~4#1| 1)) (.cse3 (not .cse6)) (.cse4 (= ~pumpRunning~0 1)) (.cse5 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse0 .cse1 .cse2) (and .cse0 .cse1 (<= 1 ~switchedOnBeforeTS~0) (< ~waterLevel~0 3) .cse3 .cse4) (and .cse5 .cse1 .cse6)))) [2021-11-23 02:42:05,384 INFO L854 garLoopResultBuilder]: At program point L404(line 404) the Hoare annotation is: (let ((.cse6 (= 0 ~systemActive~0))) (let ((.cse2 (<= ~waterLevel~0 2)) (.cse0 (= |ULTIMATE.start_main_~tmp~4#1| 1)) (.cse3 (not .cse6)) (.cse4 (= ~pumpRunning~0 1)) (.cse5 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse0 .cse1 .cse2) (and .cse0 .cse1 (<= 1 ~switchedOnBeforeTS~0) (< ~waterLevel~0 3) .cse3 .cse4) (and .cse5 .cse1 .cse6)))) [2021-11-23 02:42:05,385 INFO L854 garLoopResultBuilder]: At program point L268(line 268) the Hoare annotation is: (and (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (not (= 0 ~systemActive~0))) [2021-11-23 02:42:05,385 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-23 02:42:05,385 INFO L854 garLoopResultBuilder]: At program point L368(lines 368 375) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_main_~tmp~4#1| 1) (= |ULTIMATE.start_main_~tmp~4#1| ~systemActive~0) (= ~waterLevel~0 1)) [2021-11-23 02:42:05,385 INFO L861 garLoopResultBuilder]: At program point L368-2(lines 368 375) the Hoare annotation is: true [2021-11-23 02:42:05,385 INFO L858 garLoopResultBuilder]: For program point L393(lines 392 439) no Hoare annotation was computed. [2021-11-23 02:42:05,385 INFO L858 garLoopResultBuilder]: For program point L422(lines 422 435) no Hoare annotation was computed. [2021-11-23 02:42:05,385 INFO L854 garLoopResultBuilder]: At program point L414(line 414) the Hoare annotation is: (let ((.cse6 (= 0 ~systemActive~0))) (let ((.cse1 (= |ULTIMATE.start_main_~tmp~4#1| 1)) (.cse3 (< ~waterLevel~0 3)) (.cse4 (not .cse6)) (.cse5 (= ~pumpRunning~0 1)) (.cse0 (= ~pumpRunning~0 0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3) (and (<= 2 ~waterLevel~0) .cse1 .cse2 (<= ~waterLevel~0 2) .cse4 .cse5) (and .cse1 .cse2 (<= 1 ~switchedOnBeforeTS~0) .cse3 .cse4 .cse5) (and .cse0 .cse2 .cse6)))) [2021-11-23 02:42:05,385 INFO L861 garLoopResultBuilder]: At program point L443(lines 382 447) the Hoare annotation is: true [2021-11-23 02:42:05,385 INFO L858 garLoopResultBuilder]: For program point L402(lines 402 408) no Hoare annotation was computed. [2021-11-23 02:42:05,385 INFO L858 garLoopResultBuilder]: For program point L402-1(lines 402 408) no Hoare annotation was computed. [2021-11-23 02:42:05,385 INFO L858 garLoopResultBuilder]: For program point L266(lines 266 272) no Hoare annotation was computed. [2021-11-23 02:42:05,386 INFO L854 garLoopResultBuilder]: At program point L266-1(lines 266 272) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2021-11-23 02:42:05,386 INFO L854 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 101 125) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 1))) (.cse1 (= 0 ~systemActive~0)) (.cse2 (not (<= 1 ~switchedOnBeforeTS~0))) (.cse3 (= ~pumpRunning~0 1))) (and (or (not (<= ~waterLevel~0 0)) .cse0 .cse1 .cse2 .cse3) (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse1 (not (< ~waterLevel~0 3))) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2 .cse3))) [2021-11-23 02:42:05,386 INFO L854 garLoopResultBuilder]: At program point L120(line 120) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 1))) (.cse1 (= 0 ~systemActive~0)) (.cse2 (not (<= 1 ~switchedOnBeforeTS~0))) (.cse3 (= ~pumpRunning~0 1))) (and (or (not (<= ~waterLevel~0 0)) .cse0 .cse1 .cse2 .cse3) (or (not (= |old(~pumpRunning~0)| 0)) .cse1 (not (< ~waterLevel~0 3))) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2 .cse3))) [2021-11-23 02:42:05,386 INFO L858 garLoopResultBuilder]: For program point L120-1(lines 101 125) no Hoare annotation was computed. [2021-11-23 02:42:05,386 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 101 125) no Hoare annotation was computed. [2021-11-23 02:42:05,386 INFO L854 garLoopResultBuilder]: At program point L115(line 115) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 1))) (.cse1 (= 0 ~systemActive~0)) (.cse2 (not (<= 1 ~switchedOnBeforeTS~0)))) (and (or (not (<= ~waterLevel~0 0)) .cse0 .cse1 .cse2) (or (not (= |old(~pumpRunning~0)| 0)) .cse1 (and (= ~pumpRunning~0 0) (or (<= 2 ~waterLevel~0) (= |processEnvironment__wrappee__highWaterSensor_~tmp~0#1| 0))) (not (< ~waterLevel~0 3))) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2))) [2021-11-23 02:42:05,386 INFO L854 garLoopResultBuilder]: At program point L109(lines 109 117) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 1))) (.cse1 (= 0 ~systemActive~0)) (.cse2 (not (<= 1 ~switchedOnBeforeTS~0)))) (and (or (not (<= ~waterLevel~0 0)) .cse0 .cse1 .cse2) (or (not (= |old(~pumpRunning~0)| 0)) .cse1 (and (= ~pumpRunning~0 0) (or (<= 2 ~waterLevel~0) (= |processEnvironment__wrappee__highWaterSensor_~tmp~0#1| 0))) (not (< ~waterLevel~0 3))) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2))) [2021-11-23 02:42:05,386 INFO L854 garLoopResultBuilder]: At program point L105(lines 105 122) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 1))) (.cse1 (= 0 ~systemActive~0)) (.cse2 (not (<= 1 ~switchedOnBeforeTS~0))) (.cse3 (= ~pumpRunning~0 1))) (and (or (not (<= ~waterLevel~0 0)) .cse0 .cse1 .cse2 .cse3) (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse1 (not (< ~waterLevel~0 3))) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2 .cse3))) [2021-11-23 02:42:05,387 INFO L858 garLoopResultBuilder]: For program point waterRiseEXIT(lines 865 876) no Hoare annotation was computed. [2021-11-23 02:42:05,387 INFO L854 garLoopResultBuilder]: At program point waterRiseENTRY(lines 865 876) the Hoare annotation is: (let ((.cse3 (not (<= |old(~waterLevel~0)| 2))) (.cse4 (not (= ~pumpRunning~0 0))) (.cse0 (not (= ~pumpRunning~0 1))) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 .cse3 (not (<= 2 |old(~waterLevel~0)|))) (or .cse4 .cse1 .cse2 .cse3) (or .cse4 .cse1 (= ~waterLevel~0 1) (not .cse2)) (or .cse0 .cse1 .cse2 (not (<= 1 ~switchedOnBeforeTS~0)) (not (< |old(~waterLevel~0)| 3))))) [2021-11-23 02:42:05,387 INFO L858 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 179 187) no Hoare annotation was computed. [2021-11-23 02:42:05,387 INFO L861 garLoopResultBuilder]: At program point isPumpRunningENTRY(lines 179 187) the Hoare annotation is: true [2021-11-23 02:42:05,391 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:42:05,392 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 02:42:05,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:42:05 BoogieIcfgContainer [2021-11-23 02:42:05,448 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 02:42:05,449 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 02:42:05,449 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 02:42:05,449 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 02:42:05,450 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:41:09" (3/4) ... [2021-11-23 02:42:05,458 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 02:42:05,463 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2021-11-23 02:42:05,463 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2021-11-23 02:42:05,464 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2021-11-23 02:42:05,464 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2021-11-23 02:42:05,464 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2021-11-23 02:42:05,464 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2021-11-23 02:42:05,464 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2021-11-23 02:42:05,465 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2021-11-23 02:42:05,487 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 77 nodes and edges [2021-11-23 02:42:05,488 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2021-11-23 02:42:05,489 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-11-23 02:42:05,490 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-23 02:42:05,490 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-23 02:42:05,491 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 02:42:05,492 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 02:42:05,520 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((\old(waterLevel) == waterLevel && 1 <= aux-isPumpRunning()-aux) && pumpRunning == 1) || !(\old(waterLevel) <= 1)) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(1 <= \old(switchedOnBeforeTS))) && ((!(\old(pumpRunning) == 0) || !(0 == systemActive)) || (pumpRunning == 0 && (\old(waterLevel) == waterLevel || waterLevel == 1)))) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && ((((((\old(waterLevel) == waterLevel && 1 <= aux-isPumpRunning()-aux) && pumpRunning == 1) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || 0 == systemActive) [2021-11-23 02:42:05,523 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(0 == systemActive)) && (((!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || ((2 <= waterLevel && \old(waterLevel) == waterLevel) && pumpRunning == 1)) || 0 == systemActive) || !(\old(waterLevel) <= 2))) && (((((!(\old(pumpRunning) == 1) || ((waterLevel == 1 && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) || ((pumpRunning == 0 && waterLevel == 1) && 1 <= switchedOnBeforeTS))) && (((((!(\old(waterLevel) == 1) || !(\old(pumpRunning) == 1)) || (((pumpRunning == 0 && \old(waterLevel) == waterLevel + 1) && 0 < \old(waterLevel)) && 1 <= switchedOnBeforeTS)) || (((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || 0 == systemActive) || !(1 <= \old(switchedOnBeforeTS)))) && (((((!(\old(pumpRunning) == 1) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && 1 <= switchedOnBeforeTS)) || 0 == systemActive) || ((\old(waterLevel) == waterLevel && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(waterLevel) <= 0)) || !(1 <= \old(switchedOnBeforeTS)))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || waterLevel == 1) [2021-11-23 02:42:05,525 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((pumpRunning == 0 && tmp == waterLevel) && waterLevel == 1) && 1 <= switchedOnBeforeTS) && !(0 == systemActive)) || (((tmp == waterLevel && waterLevel == 1) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) && ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(0 == systemActive))) && (((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || (pumpRunning == 0 && !(0 == systemActive))) || 0 == systemActive)) && ((((!(\old(pumpRunning) == 0) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || (((pumpRunning == 0 && tmp == waterLevel) && \old(waterLevel) == waterLevel) && !(0 == systemActive))) || pumpRunning == 1)) && (((((!(\old(waterLevel) <= 1) || ((((pumpRunning == 0 && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || (\old(waterLevel) <= 0 && \old(waterLevel) == waterLevel))) && tmp == waterLevel) && 1 <= switchedOnBeforeTS) && !(0 == systemActive))) || ((((waterLevel <= 0 && tmp == waterLevel) && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(1 <= \old(switchedOnBeforeTS)))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) <= 2)) || ((1 < tmp && tmp <= 2) && \old(waterLevel) == waterLevel)) || !(2 <= \old(waterLevel)))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || waterLevel == 1) [2021-11-23 02:42:05,526 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\old(pumpRunning) == 1) || 0 == systemActive) || ((\old(waterLevel) == waterLevel && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(waterLevel) <= 0)) || !(1 <= \old(switchedOnBeforeTS))) && ((((!(\old(waterLevel) == 1) || ((\old(waterLevel) == waterLevel + 1 && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(1 <= \old(switchedOnBeforeTS)))) && ((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) < 3))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive))) && ((((!(\old(pumpRunning) == 1) || ((waterLevel == 1 && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) [2021-11-23 02:42:05,526 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) < 3)) && (((!(\old(pumpRunning) == 1) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 1) || 0 == systemActive) || !(1 <= \old(switchedOnBeforeTS))) || !(\old(waterLevel) < 3))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) [2021-11-23 02:42:05,526 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || ((2 <= waterLevel && \old(waterLevel) == waterLevel) && pumpRunning == 1)) || !(\old(waterLevel) <= 2)) && (((((!(\old(pumpRunning) == 1) || ((waterLevel == 1 && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) || ((pumpRunning == 0 && waterLevel == 1) && 1 <= switchedOnBeforeTS))) && (((((!(\old(waterLevel) == 1) || !(\old(pumpRunning) == 1)) || (((pumpRunning == 0 && \old(waterLevel) == waterLevel + 1) && 0 < \old(waterLevel)) && 1 <= switchedOnBeforeTS)) || (((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || 0 == systemActive) || !(1 <= \old(switchedOnBeforeTS)))) && (((((!(\old(pumpRunning) == 1) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && 1 <= switchedOnBeforeTS)) || 0 == systemActive) || ((\old(waterLevel) == waterLevel && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(waterLevel) <= 0)) || !(1 <= \old(switchedOnBeforeTS)))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) [2021-11-23 02:42:05,527 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(waterLevel <= 0) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(1 <= switchedOnBeforeTS)) || pumpRunning == 1) && (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || 0 == systemActive) || !(waterLevel < 3))) && ((((!(waterLevel == 1) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(1 <= switchedOnBeforeTS)) || pumpRunning == 1) [2021-11-23 02:42:05,530 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(waterLevel <= 0) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(1 <= switchedOnBeforeTS)) && (((!(\old(pumpRunning) == 0) || 0 == systemActive) || (pumpRunning == 0 && (2 <= waterLevel || tmp == 0))) || !(waterLevel < 3))) && (((!(waterLevel == 1) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(1 <= switchedOnBeforeTS)) [2021-11-23 02:42:05,566 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe216aa-a32d-481c-b400-ff5fdca69860/bin/utaipan-EQgc7hIp5V/witness.graphml [2021-11-23 02:42:05,566 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 02:42:05,567 INFO L158 Benchmark]: Toolchain (without parser) took 57451.39ms. Allocated memory was 98.6MB in the beginning and 394.3MB in the end (delta: 295.7MB). Free memory was 58.8MB in the beginning and 344.6MB in the end (delta: -285.8MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. [2021-11-23 02:42:05,567 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 98.6MB. Free memory was 76.0MB in the beginning and 75.9MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 02:42:05,567 INFO L158 Benchmark]: CACSL2BoogieTranslator took 483.58ms. Allocated memory is still 98.6MB. Free memory was 58.6MB in the beginning and 65.7MB in the end (delta: -7.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 02:42:05,568 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.21ms. Allocated memory is still 98.6MB. Free memory was 65.7MB in the beginning and 63.3MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 02:42:05,568 INFO L158 Benchmark]: Boogie Preprocessor took 60.51ms. Allocated memory is still 98.6MB. Free memory was 63.3MB in the beginning and 61.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 02:42:05,568 INFO L158 Benchmark]: RCFGBuilder took 704.87ms. Allocated memory is still 98.6MB. Free memory was 61.6MB in the beginning and 39.4MB in the end (delta: 22.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2021-11-23 02:42:05,569 INFO L158 Benchmark]: TraceAbstraction took 56007.74ms. Allocated memory was 98.6MB in the beginning and 394.3MB in the end (delta: 295.7MB). Free memory was 38.7MB in the beginning and 350.8MB in the end (delta: -312.1MB). Peak memory consumption was 212.1MB. Max. memory is 16.1GB. [2021-11-23 02:42:05,569 INFO L158 Benchmark]: Witness Printer took 116.99ms. Allocated memory is still 394.3MB. Free memory was 350.8MB in the beginning and 344.6MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 02:42:05,571 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 98.6MB. Free memory was 76.0MB in the beginning and 75.9MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 483.58ms. Allocated memory is still 98.6MB. Free memory was 58.6MB in the beginning and 65.7MB in the end (delta: -7.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.21ms. Allocated memory is still 98.6MB. Free memory was 65.7MB in the beginning and 63.3MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.51ms. Allocated memory is still 98.6MB. Free memory was 63.3MB in the beginning and 61.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 704.87ms. Allocated memory is still 98.6MB. Free memory was 61.6MB in the beginning and 39.4MB in the end (delta: 22.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 56007.74ms. Allocated memory was 98.6MB in the beginning and 394.3MB in the end (delta: 295.7MB). Free memory was 38.7MB in the beginning and 350.8MB in the end (delta: -312.1MB). Peak memory consumption was 212.1MB. Max. memory is 16.1GB. * Witness Printer took 116.99ms. Allocated memory is still 394.3MB. Free memory was 350.8MB in the beginning and 344.6MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. 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: 958]: 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 9 procedures, 66 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 55.9s, OverallIterations: 11, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2759 SdHoareTripleChecker+Valid, 3.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2732 mSDsluCounter, 3845 SdHoareTripleChecker+Invalid, 2.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3345 mSDsCounter, 1603 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3851 IncrementalHoareTripleChecker+Invalid, 5454 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1603 mSolverCounterUnsat, 965 mSDtfsCounter, 3851 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1014 GetRequests, 733 SyntacticMatches, 8 SemanticMatches, 273 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7358 ImplicationChecksByTransitivity, 17.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=347occurred in iteration=6, InterpolantAutomatonStates: 146, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 11 MinimizatonAttempts, 315 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 38 LocationsWithAnnotation, 1330 PreInvPairs, 1555 NumberOfFragments, 2234 HoareAnnotationTreeSize, 1330 FomulaSimplifications, 5739 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 38 FomulaSimplificationsInter, 24726 FormulaSimplificationTreeSizeReductionInter, 4.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 838 NumberOfCodeBlocks, 838 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 1062 ConstructedInterpolants, 0 QuantifiedInterpolants, 3280 SizeOfPredicates, 26 NumberOfNonLiveVariables, 1955 ConjunctsInSsa, 60 ConjunctsInUnsatCore, 18 InterpolantComputations, 8 PerfectInterpolantSequences, 520/615 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: 105]: Loop Invariant Derived loop invariant: (((((!(waterLevel <= 0) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(1 <= switchedOnBeforeTS)) || pumpRunning == 1) && (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || 0 == systemActive) || !(waterLevel < 3))) && ((((!(waterLevel == 1) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(1 <= switchedOnBeforeTS)) || pumpRunning == 1) - InvariantResult [Line: 131]: Loop Invariant Derived loop invariant: (((((((!(\old(pumpRunning) == 1) || 0 == systemActive) || ((\old(waterLevel) == waterLevel && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(waterLevel) <= 0)) || !(1 <= \old(switchedOnBeforeTS))) && ((((!(\old(waterLevel) == 1) || ((\old(waterLevel) == waterLevel + 1 && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(1 <= \old(switchedOnBeforeTS)))) && ((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) < 3))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive))) && ((((!(\old(pumpRunning) == 1) || ((waterLevel == 1 && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 392]: Loop Invariant Derived loop invariant: (((((((2 <= waterLevel && tmp == 1) && splverifierCounter == 0) && waterLevel <= 2) && !(0 == systemActive)) && pumpRunning == 1) || (((pumpRunning == 0 && tmp == 1) && splverifierCounter == 0) && waterLevel <= 2)) || (((((tmp == 1 && splverifierCounter == 0) && 1 <= switchedOnBeforeTS) && waterLevel < 3) && !(0 == systemActive)) && pumpRunning == 1)) || ((pumpRunning == 0 && splverifierCounter == 0) && 0 == systemActive) - InvariantResult [Line: 279]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 368]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && tmp == 1) && tmp == systemActive) && waterLevel == 1 - InvariantResult [Line: 80]: Loop Invariant Derived loop invariant: (((((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(0 == systemActive)) && (((!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || ((2 <= waterLevel && \old(waterLevel) == waterLevel) && pumpRunning == 1)) || 0 == systemActive) || !(\old(waterLevel) <= 2))) && (((((!(\old(pumpRunning) == 1) || ((waterLevel == 1 && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) || ((pumpRunning == 0 && waterLevel == 1) && 1 <= switchedOnBeforeTS))) && (((((!(\old(waterLevel) == 1) || !(\old(pumpRunning) == 1)) || (((pumpRunning == 0 && \old(waterLevel) == waterLevel + 1) && 0 < \old(waterLevel)) && 1 <= switchedOnBeforeTS)) || (((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || 0 == systemActive) || !(1 <= \old(switchedOnBeforeTS)))) && (((((!(\old(pumpRunning) == 1) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && 1 <= switchedOnBeforeTS)) || 0 == systemActive) || ((\old(waterLevel) == waterLevel && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(waterLevel) <= 0)) || !(1 <= \old(switchedOnBeforeTS)))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || waterLevel == 1) - InvariantResult [Line: 368]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 982]: Loop Invariant Derived loop invariant: ((((((((((((((pumpRunning == 0 && tmp == waterLevel) && waterLevel == 1) && 1 <= switchedOnBeforeTS) && !(0 == systemActive)) || (((tmp == waterLevel && waterLevel == 1) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) && ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(0 == systemActive))) && (((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || (pumpRunning == 0 && !(0 == systemActive))) || 0 == systemActive)) && ((((!(\old(pumpRunning) == 0) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || (((pumpRunning == 0 && tmp == waterLevel) && \old(waterLevel) == waterLevel) && !(0 == systemActive))) || pumpRunning == 1)) && (((((!(\old(waterLevel) <= 1) || ((((pumpRunning == 0 && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || (\old(waterLevel) <= 0 && \old(waterLevel) == waterLevel))) && tmp == waterLevel) && 1 <= switchedOnBeforeTS) && !(0 == systemActive))) || ((((waterLevel <= 0 && tmp == waterLevel) && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(1 <= \old(switchedOnBeforeTS)))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) <= 2)) || ((1 < tmp && tmp <= 2) && \old(waterLevel) == waterLevel)) || !(2 <= \old(waterLevel)))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || waterLevel == 1) - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: ((((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || ((2 <= waterLevel && \old(waterLevel) == waterLevel) && pumpRunning == 1)) || !(\old(waterLevel) <= 2)) && (((((!(\old(pumpRunning) == 1) || ((waterLevel == 1 && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) || ((pumpRunning == 0 && waterLevel == 1) && 1 <= switchedOnBeforeTS))) && (((((!(\old(waterLevel) == 1) || !(\old(pumpRunning) == 1)) || (((pumpRunning == 0 && \old(waterLevel) == waterLevel + 1) && 0 < \old(waterLevel)) && 1 <= switchedOnBeforeTS)) || (((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || 0 == systemActive) || !(1 <= \old(switchedOnBeforeTS)))) && (((((!(\old(pumpRunning) == 1) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && 1 <= switchedOnBeforeTS)) || 0 == systemActive) || ((\old(waterLevel) == waterLevel && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(waterLevel) <= 0)) || !(1 <= \old(switchedOnBeforeTS)))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) - InvariantResult [Line: 382]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 289]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 958]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) < 3)) && (((!(\old(pumpRunning) == 1) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 1) || 0 == systemActive) || !(1 <= \old(switchedOnBeforeTS))) || !(\old(waterLevel) < 3))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) - InvariantResult [Line: 109]: Loop Invariant Derived loop invariant: ((((!(waterLevel <= 0) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(1 <= switchedOnBeforeTS)) && (((!(\old(pumpRunning) == 0) || 0 == systemActive) || (pumpRunning == 0 && (2 <= waterLevel || tmp == 0))) || !(waterLevel < 3))) && (((!(waterLevel == 1) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(1 <= switchedOnBeforeTS)) - InvariantResult [Line: 266]: Loop Invariant Derived loop invariant: pumpRunning == 0 && splverifierCounter == 0 - InvariantResult [Line: 977]: Loop Invariant Derived loop invariant: (((((((((\old(waterLevel) == waterLevel && 1 <= aux-isPumpRunning()-aux) && pumpRunning == 1) || !(\old(waterLevel) <= 1)) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(1 <= \old(switchedOnBeforeTS))) && ((!(\old(pumpRunning) == 0) || !(0 == systemActive)) || (pumpRunning == 0 && (\old(waterLevel) == waterLevel || waterLevel == 1)))) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && ((((((\old(waterLevel) == waterLevel && 1 <= aux-isPumpRunning()-aux) && pumpRunning == 1) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || 0 == systemActive) - InvariantResult [Line: 391]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-11-23 02:42:05,647 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe216aa-a32d-481c-b400-ff5fdca69860/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