./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product63.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0103d3cb-2129-43dc-9f3b-c969a3c6c56a/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0103d3cb-2129-43dc-9f3b-c969a3c6c56a/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0103d3cb-2129-43dc-9f3b-c969a3c6c56a/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0103d3cb-2129-43dc-9f3b-c969a3c6c56a/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product63.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0103d3cb-2129-43dc-9f3b-c969a3c6c56a/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0103d3cb-2129-43dc-9f3b-c969a3c6c56a/bin/uautomizer-DrprNOufMa --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fd0b8ceecda33bdad48c402c2c8ba6fe539641c6d50bf604e9c60e70c71a562b --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 17:02:05,635 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 17:02:05,636 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 17:02:05,658 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 17:02:05,659 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 17:02:05,660 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 17:02:05,661 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 17:02:05,663 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 17:02:05,664 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 17:02:05,665 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 17:02:05,666 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 17:02:05,667 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 17:02:05,667 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 17:02:05,668 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 17:02:05,669 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 17:02:05,670 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 17:02:05,671 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 17:02:05,671 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 17:02:05,673 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 17:02:05,674 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 17:02:05,676 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 17:02:05,677 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 17:02:05,678 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 17:02:05,679 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 17:02:05,682 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 17:02:05,682 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 17:02:05,682 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 17:02:05,683 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 17:02:05,683 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 17:02:05,684 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 17:02:05,684 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 17:02:05,685 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 17:02:05,686 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 17:02:05,686 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 17:02:05,687 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 17:02:05,687 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 17:02:05,688 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 17:02:05,688 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 17:02:05,688 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 17:02:05,688 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 17:02:05,689 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 17:02:05,690 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0103d3cb-2129-43dc-9f3b-c969a3c6c56a/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-06 17:02:05,706 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 17:02:05,706 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 17:02:05,707 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 17:02:05,707 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 17:02:05,707 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 17:02:05,707 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 17:02:05,708 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 17:02:05,708 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 17:02:05,708 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 17:02:05,708 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 17:02:05,708 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 17:02:05,708 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 17:02:05,708 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 17:02:05,709 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 17:02:05,709 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 17:02:05,709 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 17:02:05,709 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 17:02:05,709 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 17:02:05,709 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 17:02:05,709 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 17:02:05,709 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 17:02:05,709 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 17:02:05,709 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 17:02:05,710 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 17:02:05,710 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 17:02:05,710 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 17:02:05,710 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 17:02:05,710 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 17:02:05,710 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 17:02:05,710 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 17:02:05,710 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 17:02:05,710 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 17:02:05,711 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 17:02:05,711 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 17:02:05,711 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0103d3cb-2129-43dc-9f3b-c969a3c6c56a/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0103d3cb-2129-43dc-9f3b-c969a3c6c56a/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd0b8ceecda33bdad48c402c2c8ba6fe539641c6d50bf604e9c60e70c71a562b [2021-12-06 17:02:05,902 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 17:02:05,918 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 17:02:05,919 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 17:02:05,920 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 17:02:05,921 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 17:02:05,922 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0103d3cb-2129-43dc-9f3b-c969a3c6c56a/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/product-lines/minepump_spec1_product63.cil.c [2021-12-06 17:02:05,970 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0103d3cb-2129-43dc-9f3b-c969a3c6c56a/bin/uautomizer-DrprNOufMa/data/b460ae90f/fcf77f94e1a74085baa9419f979e6ff0/FLAGa828f21c6 [2021-12-06 17:02:06,391 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 17:02:06,392 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0103d3cb-2129-43dc-9f3b-c969a3c6c56a/sv-benchmarks/c/product-lines/minepump_spec1_product63.cil.c [2021-12-06 17:02:06,405 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0103d3cb-2129-43dc-9f3b-c969a3c6c56a/bin/uautomizer-DrprNOufMa/data/b460ae90f/fcf77f94e1a74085baa9419f979e6ff0/FLAGa828f21c6 [2021-12-06 17:02:06,414 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0103d3cb-2129-43dc-9f3b-c969a3c6c56a/bin/uautomizer-DrprNOufMa/data/b460ae90f/fcf77f94e1a74085baa9419f979e6ff0 [2021-12-06 17:02:06,416 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 17:02:06,417 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 17:02:06,419 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 17:02:06,419 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 17:02:06,421 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 17:02:06,422 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:02:06" (1/1) ... [2021-12-06 17:02:06,423 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1065251e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:02:06, skipping insertion in model container [2021-12-06 17:02:06,423 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:02:06" (1/1) ... [2021-12-06 17:02:06,428 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 17:02:06,465 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 17:02:06,613 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_0103d3cb-2129-43dc-9f3b-c969a3c6c56a/sv-benchmarks/c/product-lines/minepump_spec1_product63.cil.c[6160,6173] [2021-12-06 17:02:06,660 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 17:02:06,666 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 17:02:06,687 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_0103d3cb-2129-43dc-9f3b-c969a3c6c56a/sv-benchmarks/c/product-lines/minepump_spec1_product63.cil.c[6160,6173] [2021-12-06 17:02:06,718 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 17:02:06,731 INFO L208 MainTranslator]: Completed translation [2021-12-06 17:02:06,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:02:06 WrapperNode [2021-12-06 17:02:06,731 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 17:02:06,732 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 17:02:06,732 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 17:02:06,732 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 17:02:06,737 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:02:06" (1/1) ... [2021-12-06 17:02:06,749 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:02:06" (1/1) ... [2021-12-06 17:02:06,768 INFO L137 Inliner]: procedures = 58, calls = 162, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 273 [2021-12-06 17:02:06,769 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 17:02:06,769 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 17:02:06,769 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 17:02:06,769 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 17:02:06,775 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:02:06" (1/1) ... [2021-12-06 17:02:06,776 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:02:06" (1/1) ... [2021-12-06 17:02:06,778 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:02:06" (1/1) ... [2021-12-06 17:02:06,778 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:02:06" (1/1) ... [2021-12-06 17:02:06,783 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:02:06" (1/1) ... [2021-12-06 17:02:06,787 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:02:06" (1/1) ... [2021-12-06 17:02:06,789 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:02:06" (1/1) ... [2021-12-06 17:02:06,791 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 17:02:06,791 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 17:02:06,792 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 17:02:06,792 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 17:02:06,792 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:02:06" (1/1) ... [2021-12-06 17:02:06,799 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 17:02:06,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0103d3cb-2129-43dc-9f3b-c969a3c6c56a/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:02:06,817 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0103d3cb-2129-43dc-9f3b-c969a3c6c56a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 17:02:06,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0103d3cb-2129-43dc-9f3b-c969a3c6c56a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 17:02:06,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 17:02:06,845 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-12-06 17:02:06,845 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-12-06 17:02:06,845 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-12-06 17:02:06,845 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-12-06 17:02:06,845 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-12-06 17:02:06,845 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-12-06 17:02:06,845 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-12-06 17:02:06,845 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-12-06 17:02:06,845 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2021-12-06 17:02:06,845 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2021-12-06 17:02:06,845 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-12-06 17:02:06,846 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-12-06 17:02:06,846 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2021-12-06 17:02:06,846 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2021-12-06 17:02:06,846 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-12-06 17:02:06,846 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-12-06 17:02:06,846 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-12-06 17:02:06,846 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-12-06 17:02:06,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 17:02:06,846 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-12-06 17:02:06,846 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-12-06 17:02:06,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 17:02:06,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 17:02:06,902 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 17:02:06,904 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 17:02:07,145 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 17:02:07,151 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 17:02:07,151 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-06 17:02:07,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:02:07 BoogieIcfgContainer [2021-12-06 17:02:07,153 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 17:02:07,155 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 17:02:07,155 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 17:02:07,157 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 17:02:07,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 05:02:06" (1/3) ... [2021-12-06 17:02:07,158 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34c3d02a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:02:07, skipping insertion in model container [2021-12-06 17:02:07,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:02:06" (2/3) ... [2021-12-06 17:02:07,158 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34c3d02a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:02:07, skipping insertion in model container [2021-12-06 17:02:07,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:02:07" (3/3) ... [2021-12-06 17:02:07,159 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product63.cil.c [2021-12-06 17:02:07,163 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 17:02:07,163 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 17:02:07,199 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 17:02:07,204 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=PETRI_NET, 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 [2021-12-06 17:02:07,205 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 17:02:07,218 INFO L276 IsEmpty]: Start isEmpty. Operand has 112 states, 81 states have (on average 1.3703703703703705) internal successors, (111), 92 states have internal predecessors, (111), 19 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (19), 14 states have call predecessors, (19), 19 states have call successors, (19) [2021-12-06 17:02:07,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-12-06 17:02:07,224 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:02:07,224 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:02:07,225 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:02:07,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:02:07,229 INFO L85 PathProgramCache]: Analyzing trace with hash 155128550, now seen corresponding path program 1 times [2021-12-06 17:02:07,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:02:07,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022827830] [2021-12-06 17:02:07,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:02:07,236 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:02:07,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:02:07,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 17:02:07,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:02:07,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:02:07,415 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:02:07,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022827830] [2021-12-06 17:02:07,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022827830] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:02:07,416 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:02:07,416 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 17:02:07,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97286830] [2021-12-06 17:02:07,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:02:07,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-06 17:02:07,422 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:02:07,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-06 17:02:07,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-06 17:02:07,446 INFO L87 Difference]: Start difference. First operand has 112 states, 81 states have (on average 1.3703703703703705) internal successors, (111), 92 states have internal predecessors, (111), 19 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (19), 14 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 17:02:07,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:02:07,478 INFO L93 Difference]: Finished difference Result 216 states and 293 transitions. [2021-12-06 17:02:07,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-06 17:02:07,480 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2021-12-06 17:02:07,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:02:07,487 INFO L225 Difference]: With dead ends: 216 [2021-12-06 17:02:07,487 INFO L226 Difference]: Without dead ends: 103 [2021-12-06 17:02:07,490 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-06 17:02:07,493 INFO L933 BasicCegarLoop]: 143 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:02:07,494 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:02:07,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2021-12-06 17:02:07,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2021-12-06 17:02:07,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 74 states have (on average 1.3108108108108107) internal successors, (97), 84 states have internal predecessors, (97), 19 states have call successors, (19), 10 states have call predecessors, (19), 9 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) [2021-12-06 17:02:07,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 134 transitions. [2021-12-06 17:02:07,528 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 134 transitions. Word has length 23 [2021-12-06 17:02:07,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:02:07,528 INFO L470 AbstractCegarLoop]: Abstraction has 103 states and 134 transitions. [2021-12-06 17:02:07,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 17:02:07,529 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 134 transitions. [2021-12-06 17:02:07,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-12-06 17:02:07,531 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:02:07,531 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:02:07,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 17:02:07,531 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:02:07,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:02:07,532 INFO L85 PathProgramCache]: Analyzing trace with hash -389594040, now seen corresponding path program 1 times [2021-12-06 17:02:07,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:02:07,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905141650] [2021-12-06 17:02:07,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:02:07,532 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:02:07,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:02:07,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-06 17:02:07,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:02:07,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:02:07,589 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:02:07,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905141650] [2021-12-06 17:02:07,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905141650] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:02:07,589 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:02:07,589 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 17:02:07,589 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516650026] [2021-12-06 17:02:07,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:02:07,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 17:02:07,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:02:07,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 17:02:07,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 17:02:07,591 INFO L87 Difference]: Start difference. First operand 103 states and 134 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 17:02:07,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:02:07,606 INFO L93 Difference]: Finished difference Result 168 states and 218 transitions. [2021-12-06 17:02:07,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 17:02:07,606 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2021-12-06 17:02:07,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:02:07,608 INFO L225 Difference]: With dead ends: 168 [2021-12-06 17:02:07,608 INFO L226 Difference]: Without dead ends: 94 [2021-12-06 17:02:07,609 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 17:02:07,610 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 16 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:02:07,611 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 221 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:02:07,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2021-12-06 17:02:07,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2021-12-06 17:02:07,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 68 states have (on average 1.3235294117647058) internal successors, (90), 78 states have internal predecessors, (90), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2021-12-06 17:02:07,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 122 transitions. [2021-12-06 17:02:07,621 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 122 transitions. Word has length 24 [2021-12-06 17:02:07,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:02:07,621 INFO L470 AbstractCegarLoop]: Abstraction has 94 states and 122 transitions. [2021-12-06 17:02:07,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 17:02:07,621 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 122 transitions. [2021-12-06 17:02:07,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-12-06 17:02:07,622 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:02:07,623 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:02:07,623 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 17:02:07,623 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:02:07,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:02:07,623 INFO L85 PathProgramCache]: Analyzing trace with hash -2116148500, now seen corresponding path program 1 times [2021-12-06 17:02:07,623 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:02:07,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757882997] [2021-12-06 17:02:07,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:02:07,624 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:02:07,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:02:07,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-06 17:02:07,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:02:07,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:02:07,676 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:02:07,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757882997] [2021-12-06 17:02:07,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757882997] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:02:07,677 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:02:07,677 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 17:02:07,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820319227] [2021-12-06 17:02:07,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:02:07,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 17:02:07,678 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:02:07,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 17:02:07,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 17:02:07,679 INFO L87 Difference]: Start difference. First operand 94 states and 122 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 17:02:07,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:02:07,712 INFO L93 Difference]: Finished difference Result 267 states and 352 transitions. [2021-12-06 17:02:07,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 17:02:07,713 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28 [2021-12-06 17:02:07,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:02:07,716 INFO L225 Difference]: With dead ends: 267 [2021-12-06 17:02:07,716 INFO L226 Difference]: Without dead ends: 180 [2021-12-06 17:02:07,717 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 17:02:07,719 INFO L933 BasicCegarLoop]: 153 mSDtfsCounter, 102 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:02:07,720 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 265 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:02:07,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2021-12-06 17:02:07,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 177. [2021-12-06 17:02:07,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 126 states have (on average 1.3412698412698412) internal successors, (169), 145 states have internal predecessors, (169), 32 states have call successors, (32), 18 states have call predecessors, (32), 18 states have return successors, (32), 21 states have call predecessors, (32), 32 states have call successors, (32) [2021-12-06 17:02:07,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 233 transitions. [2021-12-06 17:02:07,748 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 233 transitions. Word has length 28 [2021-12-06 17:02:07,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:02:07,749 INFO L470 AbstractCegarLoop]: Abstraction has 177 states and 233 transitions. [2021-12-06 17:02:07,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 17:02:07,749 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 233 transitions. [2021-12-06 17:02:07,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-12-06 17:02:07,751 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:02:07,752 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:02:07,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 17:02:07,752 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:02:07,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:02:07,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1322411102, now seen corresponding path program 1 times [2021-12-06 17:02:07,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:02:07,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657663427] [2021-12-06 17:02:07,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:02:07,753 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:02:07,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:02:07,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 17:02:07,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:02:07,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:02:07,828 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:02:07,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657663427] [2021-12-06 17:02:07,828 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657663427] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:02:07,828 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:02:07,828 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 17:02:07,829 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082023874] [2021-12-06 17:02:07,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:02:07,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 17:02:07,829 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:02:07,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 17:02:07,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:02:07,830 INFO L87 Difference]: Start difference. First operand 177 states and 233 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 17:02:07,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:02:07,896 INFO L93 Difference]: Finished difference Result 461 states and 620 transitions. [2021-12-06 17:02:07,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 17:02:07,896 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2021-12-06 17:02:07,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:02:07,899 INFO L225 Difference]: With dead ends: 461 [2021-12-06 17:02:07,899 INFO L226 Difference]: Without dead ends: 291 [2021-12-06 17:02:07,901 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-06 17:02:07,902 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 75 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:02:07,902 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 459 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:02:07,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2021-12-06 17:02:07,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 278. [2021-12-06 17:02:07,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 201 states have (on average 1.2885572139303483) internal successors, (259), 220 states have internal predecessors, (259), 42 states have call successors, (42), 34 states have call predecessors, (42), 34 states have return successors, (54), 37 states have call predecessors, (54), 42 states have call successors, (54) [2021-12-06 17:02:07,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 355 transitions. [2021-12-06 17:02:07,936 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 355 transitions. Word has length 32 [2021-12-06 17:02:07,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:02:07,937 INFO L470 AbstractCegarLoop]: Abstraction has 278 states and 355 transitions. [2021-12-06 17:02:07,937 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 17:02:07,937 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 355 transitions. [2021-12-06 17:02:07,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-12-06 17:02:07,939 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:02:07,939 INFO L514 BasicCegarLoop]: trace histogram [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, 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] [2021-12-06 17:02:07,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 17:02:07,939 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:02:07,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:02:07,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1980945601, now seen corresponding path program 1 times [2021-12-06 17:02:07,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:02:07,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970966149] [2021-12-06 17:02:07,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:02:07,940 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:02:07,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:02:07,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-06 17:02:07,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:02:07,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 17:02:07,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:02:08,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 17:02:08,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:02:08,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:02:08,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:02:08,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-06 17:02:08,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:02:08,016 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-06 17:02:08,016 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:02:08,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970966149] [2021-12-06 17:02:08,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970966149] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:02:08,017 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:02:08,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 17:02:08,017 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364373395] [2021-12-06 17:02:08,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:02:08,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 17:02:08,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:02:08,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 17:02:08,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 17:02:08,018 INFO L87 Difference]: Start difference. First operand 278 states and 355 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-06 17:02:08,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:02:08,149 INFO L93 Difference]: Finished difference Result 619 states and 814 transitions. [2021-12-06 17:02:08,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 17:02:08,149 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 59 [2021-12-06 17:02:08,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:02:08,152 INFO L225 Difference]: With dead ends: 619 [2021-12-06 17:02:08,152 INFO L226 Difference]: Without dead ends: 348 [2021-12-06 17:02:08,153 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-12-06 17:02:08,154 INFO L933 BasicCegarLoop]: 104 mSDtfsCounter, 75 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 17:02:08,155 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 413 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 17:02:08,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2021-12-06 17:02:08,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 336. [2021-12-06 17:02:08,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 245 states have (on average 1.2612244897959184) internal successors, (309), 264 states have internal predecessors, (309), 46 states have call successors, (46), 34 states have call predecessors, (46), 44 states have return successors, (68), 49 states have call predecessors, (68), 46 states have call successors, (68) [2021-12-06 17:02:08,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 423 transitions. [2021-12-06 17:02:08,178 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 423 transitions. Word has length 59 [2021-12-06 17:02:08,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:02:08,179 INFO L470 AbstractCegarLoop]: Abstraction has 336 states and 423 transitions. [2021-12-06 17:02:08,179 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-06 17:02:08,179 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 423 transitions. [2021-12-06 17:02:08,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-12-06 17:02:08,181 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:02:08,181 INFO L514 BasicCegarLoop]: trace histogram [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, 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] [2021-12-06 17:02:08,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-06 17:02:08,181 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:02:08,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:02:08,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1706185987, now seen corresponding path program 1 times [2021-12-06 17:02:08,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:02:08,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798544268] [2021-12-06 17:02:08,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:02:08,182 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:02:08,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:02:08,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-06 17:02:08,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:02:08,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 17:02:08,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:02:08,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 17:02:08,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:02:08,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:02:08,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:02:08,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-06 17:02:08,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:02:08,256 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-06 17:02:08,257 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:02:08,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798544268] [2021-12-06 17:02:08,257 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798544268] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:02:08,257 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:02:08,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 17:02:08,257 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846897872] [2021-12-06 17:02:08,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:02:08,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 17:02:08,258 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:02:08,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 17:02:08,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 17:02:08,258 INFO L87 Difference]: Start difference. First operand 336 states and 423 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-06 17:02:08,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:02:08,509 INFO L93 Difference]: Finished difference Result 695 states and 900 transitions. [2021-12-06 17:02:08,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 17:02:08,510 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 59 [2021-12-06 17:02:08,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:02:08,512 INFO L225 Difference]: With dead ends: 695 [2021-12-06 17:02:08,513 INFO L226 Difference]: Without dead ends: 366 [2021-12-06 17:02:08,514 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2021-12-06 17:02:08,515 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 254 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 17:02:08,515 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [263 Valid, 477 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 17:02:08,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2021-12-06 17:02:08,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 340. [2021-12-06 17:02:08,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 249 states have (on average 1.2570281124497993) internal successors, (313), 268 states have internal predecessors, (313), 46 states have call successors, (46), 34 states have call predecessors, (46), 44 states have return successors, (68), 49 states have call predecessors, (68), 46 states have call successors, (68) [2021-12-06 17:02:08,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 427 transitions. [2021-12-06 17:02:08,536 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 427 transitions. Word has length 59 [2021-12-06 17:02:08,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:02:08,536 INFO L470 AbstractCegarLoop]: Abstraction has 340 states and 427 transitions. [2021-12-06 17:02:08,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-06 17:02:08,537 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 427 transitions. [2021-12-06 17:02:08,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-12-06 17:02:08,538 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:02:08,538 INFO L514 BasicCegarLoop]: trace histogram [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, 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] [2021-12-06 17:02:08,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-06 17:02:08,538 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:02:08,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:02:08,539 INFO L85 PathProgramCache]: Analyzing trace with hash 344798011, now seen corresponding path program 1 times [2021-12-06 17:02:08,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:02:08,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317235078] [2021-12-06 17:02:08,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:02:08,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:02:08,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:02:08,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-06 17:02:08,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:02:08,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 17:02:08,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:02:08,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 17:02:08,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:02:08,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:02:08,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:02:08,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-06 17:02:08,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:02:08,603 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-06 17:02:08,603 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:02:08,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317235078] [2021-12-06 17:02:08,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317235078] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:02:08,603 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:02:08,604 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 17:02:08,604 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316583300] [2021-12-06 17:02:08,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:02:08,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 17:02:08,605 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:02:08,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 17:02:08,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:02:08,605 INFO L87 Difference]: Start difference. First operand 340 states and 427 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2021-12-06 17:02:08,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:02:08,790 INFO L93 Difference]: Finished difference Result 941 states and 1230 transitions. [2021-12-06 17:02:08,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 17:02:08,790 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 59 [2021-12-06 17:02:08,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:02:08,793 INFO L225 Difference]: With dead ends: 941 [2021-12-06 17:02:08,793 INFO L226 Difference]: Without dead ends: 608 [2021-12-06 17:02:08,794 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-12-06 17:02:08,795 INFO L933 BasicCegarLoop]: 159 mSDtfsCounter, 242 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 17:02:08,795 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [250 Valid, 359 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 17:02:08,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2021-12-06 17:02:08,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 601. [2021-12-06 17:02:08,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 601 states, 442 states have (on average 1.2330316742081449) internal successors, (545), 470 states have internal predecessors, (545), 81 states have call successors, (81), 71 states have call predecessors, (81), 77 states have return successors, (133), 82 states have call predecessors, (133), 81 states have call successors, (133) [2021-12-06 17:02:08,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 759 transitions. [2021-12-06 17:02:08,825 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 759 transitions. Word has length 59 [2021-12-06 17:02:08,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:02:08,825 INFO L470 AbstractCegarLoop]: Abstraction has 601 states and 759 transitions. [2021-12-06 17:02:08,825 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2021-12-06 17:02:08,826 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 759 transitions. [2021-12-06 17:02:08,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-12-06 17:02:08,827 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:02:08,827 INFO L514 BasicCegarLoop]: trace histogram [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, 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] [2021-12-06 17:02:08,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-06 17:02:08,827 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:02:08,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:02:08,827 INFO L85 PathProgramCache]: Analyzing trace with hash 616558741, now seen corresponding path program 1 times [2021-12-06 17:02:08,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:02:08,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385503878] [2021-12-06 17:02:08,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:02:08,828 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:02:08,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:02:08,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 17:02:08,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:02:08,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 17:02:08,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:02:08,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 17:02:08,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:02:08,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 17:02:08,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:02:08,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:02:08,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:02:08,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-06 17:02:08,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:02:08,910 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-06 17:02:08,910 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:02:08,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385503878] [2021-12-06 17:02:08,910 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385503878] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:02:08,910 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:02:08,910 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 17:02:08,910 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898887350] [2021-12-06 17:02:08,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:02:08,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 17:02:08,911 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:02:08,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 17:02:08,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-06 17:02:08,912 INFO L87 Difference]: Start difference. First operand 601 states and 759 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-06 17:02:09,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:02:09,398 INFO L93 Difference]: Finished difference Result 2059 states and 2701 transitions. [2021-12-06 17:02:09,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-12-06 17:02:09,399 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 63 [2021-12-06 17:02:09,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:02:09,407 INFO L225 Difference]: With dead ends: 2059 [2021-12-06 17:02:09,407 INFO L226 Difference]: Without dead ends: 1465 [2021-12-06 17:02:09,409 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=133, Invalid=467, Unknown=0, NotChecked=0, Total=600 [2021-12-06 17:02:09,410 INFO L933 BasicCegarLoop]: 113 mSDtfsCounter, 367 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 185 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 185 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 17:02:09,411 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [375 Valid, 460 Invalid, 677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [185 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-06 17:02:09,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1465 states. [2021-12-06 17:02:09,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1465 to 1357. [2021-12-06 17:02:09,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1357 states, 988 states have (on average 1.2044534412955465) internal successors, (1190), 1059 states have internal predecessors, (1190), 194 states have call successors, (194), 142 states have call predecessors, (194), 174 states have return successors, (352), 200 states have call predecessors, (352), 194 states have call successors, (352) [2021-12-06 17:02:09,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1357 states to 1357 states and 1736 transitions. [2021-12-06 17:02:09,487 INFO L78 Accepts]: Start accepts. Automaton has 1357 states and 1736 transitions. Word has length 63 [2021-12-06 17:02:09,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:02:09,488 INFO L470 AbstractCegarLoop]: Abstraction has 1357 states and 1736 transitions. [2021-12-06 17:02:09,488 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-06 17:02:09,488 INFO L276 IsEmpty]: Start isEmpty. Operand 1357 states and 1736 transitions. [2021-12-06 17:02:09,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-12-06 17:02:09,491 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:02:09,491 INFO L514 BasicCegarLoop]: trace histogram [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, 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] [2021-12-06 17:02:09,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-06 17:02:09,492 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:02:09,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:02:09,492 INFO L85 PathProgramCache]: Analyzing trace with hash 1067655569, now seen corresponding path program 1 times [2021-12-06 17:02:09,492 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:02:09,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546343931] [2021-12-06 17:02:09,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:02:09,492 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:02:09,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:02:09,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 17:02:09,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:02:09,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-06 17:02:09,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:02:09,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-06 17:02:09,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:02:09,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 17:02:09,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:02:09,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 17:02:09,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:02:09,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:02:09,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:02:09,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 17:02:09,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:02:09,675 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-06 17:02:09,675 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:02:09,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546343931] [2021-12-06 17:02:09,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546343931] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 17:02:09,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1168443845] [2021-12-06 17:02:09,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:02:09,676 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:02:09,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0103d3cb-2129-43dc-9f3b-c969a3c6c56a/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:02:09,677 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0103d3cb-2129-43dc-9f3b-c969a3c6c56a/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 17:02:09,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0103d3cb-2129-43dc-9f3b-c969a3c6c56a/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-06 17:02:09,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:02:09,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-06 17:02:09,742 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:02:09,960 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:02:09,960 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 17:02:09,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1168443845] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:02:09,961 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 17:02:09,961 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [15] total 21 [2021-12-06 17:02:09,961 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639166489] [2021-12-06 17:02:09,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:02:09,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 17:02:09,962 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:02:09,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 17:02:09,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=364, Unknown=0, NotChecked=0, Total=420 [2021-12-06 17:02:09,963 INFO L87 Difference]: Start difference. First operand 1357 states and 1736 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (8), 3 states have call predecessors, (8), 5 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) [2021-12-06 17:02:10,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:02:10,149 INFO L93 Difference]: Finished difference Result 2641 states and 3397 transitions. [2021-12-06 17:02:10,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 17:02:10,150 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (8), 3 states have call predecessors, (8), 5 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) Word has length 67 [2021-12-06 17:02:10,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:02:10,159 INFO L225 Difference]: With dead ends: 2641 [2021-12-06 17:02:10,159 INFO L226 Difference]: Without dead ends: 1291 [2021-12-06 17:02:10,164 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 70 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=364, Unknown=0, NotChecked=0, Total=420 [2021-12-06 17:02:10,166 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 85 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 823 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 17:02:10,166 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 823 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 17:02:10,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1291 states. [2021-12-06 17:02:10,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1291 to 1287. [2021-12-06 17:02:10,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1287 states, 934 states have (on average 1.1927194860813704) internal successors, (1114), 1003 states have internal predecessors, (1114), 188 states have call successors, (188), 138 states have call predecessors, (188), 164 states have return successors, (308), 188 states have call predecessors, (308), 188 states have call successors, (308) [2021-12-06 17:02:10,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1287 states to 1287 states and 1610 transitions. [2021-12-06 17:02:10,261 INFO L78 Accepts]: Start accepts. Automaton has 1287 states and 1610 transitions. Word has length 67 [2021-12-06 17:02:10,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:02:10,261 INFO L470 AbstractCegarLoop]: Abstraction has 1287 states and 1610 transitions. [2021-12-06 17:02:10,261 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (8), 3 states have call predecessors, (8), 5 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) [2021-12-06 17:02:10,261 INFO L276 IsEmpty]: Start isEmpty. Operand 1287 states and 1610 transitions. [2021-12-06 17:02:10,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-12-06 17:02:10,265 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:02:10,265 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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, 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, 1, 1, 1, 1] [2021-12-06 17:02:10,298 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0103d3cb-2129-43dc-9f3b-c969a3c6c56a/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-06 17:02:10,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0103d3cb-2129-43dc-9f3b-c969a3c6c56a/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-12-06 17:02:10,466 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:02:10,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:02:10,466 INFO L85 PathProgramCache]: Analyzing trace with hash -1513239529, now seen corresponding path program 1 times [2021-12-06 17:02:10,466 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:02:10,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245890950] [2021-12-06 17:02:10,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:02:10,467 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:02:10,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:02:10,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 17:02:10,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:02:10,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 17:02:10,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:02:10,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 17:02:10,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:02:10,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 17:02:10,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:02:10,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 17:02:10,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:02:10,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:02:10,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:02:10,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 17:02:10,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:02:10,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-06 17:02:10,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:02:10,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-06 17:02:10,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:02:10,554 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-12-06 17:02:10,555 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:02:10,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245890950] [2021-12-06 17:02:10,555 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245890950] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:02:10,555 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:02:10,555 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 17:02:10,555 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127258240] [2021-12-06 17:02:10,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:02:10,556 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 17:02:10,556 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:02:10,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 17:02:10,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-12-06 17:02:10,556 INFO L87 Difference]: Start difference. First operand 1287 states and 1610 transitions. Second operand has 8 states, 8 states have (on average 8.875) internal successors, (71), 4 states have internal predecessors, (71), 4 states have call successors, (10), 6 states have call predecessors, (10), 2 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) [2021-12-06 17:02:10,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:02:10,864 INFO L93 Difference]: Finished difference Result 1535 states and 1910 transitions. [2021-12-06 17:02:10,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 17:02:10,864 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 4 states have internal predecessors, (71), 4 states have call successors, (10), 6 states have call predecessors, (10), 2 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) Word has length 94 [2021-12-06 17:02:10,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:02:10,868 INFO L225 Difference]: With dead ends: 1535 [2021-12-06 17:02:10,868 INFO L226 Difference]: Without dead ends: 650 [2021-12-06 17:02:10,870 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2021-12-06 17:02:10,871 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 453 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 217 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 462 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 217 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 17:02:10,871 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [462 Valid, 287 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [217 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 17:02:10,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2021-12-06 17:02:10,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 630. [2021-12-06 17:02:10,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 630 states, 457 states have (on average 1.1575492341356675) internal successors, (529), 489 states have internal predecessors, (529), 91 states have call successors, (91), 68 states have call predecessors, (91), 81 states have return successors, (151), 92 states have call predecessors, (151), 91 states have call successors, (151) [2021-12-06 17:02:10,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 630 states and 771 transitions. [2021-12-06 17:02:10,909 INFO L78 Accepts]: Start accepts. Automaton has 630 states and 771 transitions. Word has length 94 [2021-12-06 17:02:10,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:02:10,909 INFO L470 AbstractCegarLoop]: Abstraction has 630 states and 771 transitions. [2021-12-06 17:02:10,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 4 states have internal predecessors, (71), 4 states have call successors, (10), 6 states have call predecessors, (10), 2 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) [2021-12-06 17:02:10,909 INFO L276 IsEmpty]: Start isEmpty. Operand 630 states and 771 transitions. [2021-12-06 17:02:10,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-12-06 17:02:10,912 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:02:10,912 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:02:10,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-06 17:02:10,912 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:02:10,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:02:10,913 INFO L85 PathProgramCache]: Analyzing trace with hash 1984934984, now seen corresponding path program 1 times [2021-12-06 17:02:10,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:02:10,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685566605] [2021-12-06 17:02:10,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:02:10,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:02:10,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:02:10,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 17:02:10,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:02:10,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-06 17:02:10,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:02:10,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 17:02:10,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:02:10,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 17:02:10,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:02:10,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 17:02:10,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:02:10,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:02:10,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:02:10,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 17:02:10,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:02:11,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-06 17:02:11,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:02:11,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-06 17:02:11,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:02:11,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:02:11,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:02:11,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-06 17:02:11,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:02:11,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-06 17:02:11,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:02:11,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 17:02:11,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:02:11,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-06 17:02:11,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:02:11,073 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 14 proven. 12 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-06 17:02:11,073 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:02:11,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685566605] [2021-12-06 17:02:11,073 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685566605] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 17:02:11,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1802221845] [2021-12-06 17:02:11,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:02:11,074 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:02:11,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0103d3cb-2129-43dc-9f3b-c969a3c6c56a/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:02:11,074 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0103d3cb-2129-43dc-9f3b-c969a3c6c56a/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 17:02:11,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0103d3cb-2129-43dc-9f3b-c969a3c6c56a/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-06 17:02:11,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:02:11,139 INFO L263 TraceCheckSpWp]: Trace formula consists of 521 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-06 17:02:11,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:02:11,321 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-12-06 17:02:11,321 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 17:02:11,321 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1802221845] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:02:11,321 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 17:02:11,322 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [14] total 19 [2021-12-06 17:02:11,322 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556696908] [2021-12-06 17:02:11,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:02:11,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 17:02:11,322 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:02:11,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 17:02:11,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2021-12-06 17:02:11,323 INFO L87 Difference]: Start difference. First operand 630 states and 771 transitions. Second operand has 8 states, 8 states have (on average 10.75) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (15), 3 states have call predecessors, (15), 5 states have return successors, (14), 5 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-06 17:02:11,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:02:11,433 INFO L93 Difference]: Finished difference Result 1093 states and 1358 transitions. [2021-12-06 17:02:11,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 17:02:11,434 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (15), 3 states have call predecessors, (15), 5 states have return successors, (14), 5 states have call predecessors, (14), 3 states have call successors, (14) Word has length 121 [2021-12-06 17:02:11,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:02:11,435 INFO L225 Difference]: With dead ends: 1093 [2021-12-06 17:02:11,435 INFO L226 Difference]: Without dead ends: 0 [2021-12-06 17:02:11,438 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2021-12-06 17:02:11,439 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 73 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 1181 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 17:02:11,440 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 1181 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 17:02:11,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-06 17:02:11,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-06 17:02:11,440 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) [2021-12-06 17:02:11,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-06 17:02:11,441 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 121 [2021-12-06 17:02:11,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:02:11,441 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 17:02:11,441 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (15), 3 states have call predecessors, (15), 5 states have return successors, (14), 5 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-06 17:02:11,441 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-06 17:02:11,441 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-06 17:02:11,444 INFO L764 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-06 17:02:11,465 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0103d3cb-2129-43dc-9f3b-c969a3c6c56a/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-06 17:02:11,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0103d3cb-2129-43dc-9f3b-c969a3c6c56a/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-12-06 17:02:11,646 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-06 17:02:14,181 INFO L854 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 199 206) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse1 (not (<= 0 ~methaneLevelCritical~0)))) (and (or .cse0 (not (= 1 ~systemActive~0)) .cse1) (or .cse0 (not (<= 2 ~waterLevel~0)) .cse1 (= 0 ~systemActive~0)))) [2021-12-06 17:02:14,181 INFO L858 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 199 206) no Hoare annotation was computed. [2021-12-06 17:02:14,181 INFO L858 garLoopResultBuilder]: For program point deactivatePumpFINAL(lines 199 206) no Hoare annotation was computed. [2021-12-06 17:02:14,181 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 89 95) no Hoare annotation was computed. [2021-12-06 17:02:14,182 INFO L861 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 89 95) the Hoare annotation is: true [2021-12-06 17:02:14,182 INFO L858 garLoopResultBuilder]: For program point L291-2(lines 291 295) no Hoare annotation was computed. [2021-12-06 17:02:14,182 INFO L854 garLoopResultBuilder]: At program point L137(line 137) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= 0 ~methaneLevelCritical~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (<= ~methaneLevelCritical~0 0)) .cse1))) [2021-12-06 17:02:14,182 INFO L854 garLoopResultBuilder]: At program point L133(line 133) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= 0 ~methaneLevelCritical~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (<= ~methaneLevelCritical~0 0)) .cse1))) [2021-12-06 17:02:14,182 INFO L858 garLoopResultBuilder]: For program point L131(lines 131 139) no Hoare annotation was computed. [2021-12-06 17:02:14,182 INFO L858 garLoopResultBuilder]: For program point L127(lines 127 144) no Hoare annotation was computed. [2021-12-06 17:02:14,182 INFO L854 garLoopResultBuilder]: At program point L986(lines 981 989) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= 0 ~methaneLevelCritical~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (<= ~methaneLevelCritical~0 0)) .cse1))) [2021-12-06 17:02:14,182 INFO L854 garLoopResultBuilder]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 123 147) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0 (not (<= 1 ~methaneLevelCritical~0))) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (<= ~methaneLevelCritical~0 0)) (not (<= 0 ~methaneLevelCritical~0))))) [2021-12-06 17:02:14,182 INFO L854 garLoopResultBuilder]: At program point L142(line 142) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (<= ~methaneLevelCritical~0 0)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1) (not (<= 0 ~methaneLevelCritical~0))) (or (not (= |old(~pumpRunning~0)| 0)) .cse1 .cse0 (not (<= 1 ~methaneLevelCritical~0))))) [2021-12-06 17:02:14,183 INFO L858 garLoopResultBuilder]: For program point L142-1(lines 123 147) no Hoare annotation was computed. [2021-12-06 17:02:14,183 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 123 147) no Hoare annotation was computed. [2021-12-06 17:02:14,183 INFO L854 garLoopResultBuilder]: At program point L297(lines 282 300) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= 0 ~methaneLevelCritical~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (<= ~methaneLevelCritical~0 0)) .cse1))) [2021-12-06 17:02:14,183 INFO L858 garLoopResultBuilder]: For program point L291(lines 291 295) no Hoare annotation was computed. [2021-12-06 17:02:14,183 INFO L854 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 914 925) the Hoare annotation is: (let ((.cse1 (not (<= |old(~methaneLevelCritical~0)| 0))) (.cse2 (and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))) (.cse3 (not (<= 0 |old(~methaneLevelCritical~0)|))) (.cse5 (not (= 0 ~systemActive~0))) (.cse4 (not (= ~pumpRunning~0 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse6 (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0)) (.cse7 (not (<= 1 |old(~methaneLevelCritical~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse1 .cse2 .cse3 .cse5) (or .cse4 .cse6 .cse7 .cse5) (or .cse4 .cse0 .cse6 .cse7))) [2021-12-06 17:02:14,183 INFO L858 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 914 925) no Hoare annotation was computed. [2021-12-06 17:02:14,183 INFO L858 garLoopResultBuilder]: For program point L918-1(lines 914 925) no Hoare annotation was computed. [2021-12-06 17:02:14,183 INFO L861 garLoopResultBuilder]: At program point L769(line 769) the Hoare annotation is: true [2021-12-06 17:02:14,184 INFO L858 garLoopResultBuilder]: For program point L769-1(line 769) no Hoare annotation was computed. [2021-12-06 17:02:14,184 INFO L858 garLoopResultBuilder]: For program point cleanupEXIT(lines 763 792) no Hoare annotation was computed. [2021-12-06 17:02:14,184 INFO L861 garLoopResultBuilder]: At program point cleanupENTRY(lines 763 792) the Hoare annotation is: true [2021-12-06 17:02:14,184 INFO L861 garLoopResultBuilder]: At program point L788(lines 763 792) the Hoare annotation is: true [2021-12-06 17:02:14,186 INFO L858 garLoopResultBuilder]: For program point L784(line 784) no Hoare annotation was computed. [2021-12-06 17:02:14,186 INFO L858 garLoopResultBuilder]: For program point L777(lines 777 781) no Hoare annotation was computed. [2021-12-06 17:02:14,186 INFO L861 garLoopResultBuilder]: At program point L777-1(lines 777 781) the Hoare annotation is: true [2021-12-06 17:02:14,187 INFO L858 garLoopResultBuilder]: For program point L774(line 774) no Hoare annotation was computed. [2021-12-06 17:02:14,187 INFO L861 garLoopResultBuilder]: At program point L773-2(lines 773 787) the Hoare annotation is: true [2021-12-06 17:02:14,187 INFO L861 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 926 934) the Hoare annotation is: true [2021-12-06 17:02:14,187 INFO L858 garLoopResultBuilder]: For program point isMethaneLevelCriticalFINAL(lines 926 934) no Hoare annotation was computed. [2021-12-06 17:02:14,187 INFO L858 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 926 934) no Hoare annotation was computed. [2021-12-06 17:02:14,187 INFO L854 garLoopResultBuilder]: At program point L159(line 159) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (<= 0 ~methaneLevelCritical~0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse2 (not (= 0 ~systemActive~0))) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 .cse2) (or (<= 1 |timeShift_processEnvironment_~tmp~2#1|) .cse1 (not (<= 1 ~methaneLevelCritical~0))))) [2021-12-06 17:02:14,187 INFO L858 garLoopResultBuilder]: For program point L894(lines 894 898) no Hoare annotation was computed. [2021-12-06 17:02:14,188 INFO L854 garLoopResultBuilder]: At program point L894-2(lines 890 901) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (<= 0 ~methaneLevelCritical~0)))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse2 (not (= 0 ~systemActive~0))) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 .cse2))) [2021-12-06 17:02:14,188 INFO L854 garLoopResultBuilder]: At program point L155(line 155) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (<= 0 ~methaneLevelCritical~0)))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse2 (not (= 0 ~systemActive~0))) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 .cse2))) [2021-12-06 17:02:14,188 INFO L858 garLoopResultBuilder]: For program point L155-1(line 155) no Hoare annotation was computed. [2021-12-06 17:02:14,188 INFO L854 garLoopResultBuilder]: At program point L168(line 168) the Hoare annotation is: (let ((.cse0 (not (<= 0 ~methaneLevelCritical~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (= 0 ~systemActive~0))) (or (not (= 1 ~systemActive~0)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse0))) [2021-12-06 17:02:14,188 INFO L854 garLoopResultBuilder]: At program point L168-1(lines 149 173) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (<= 0 ~methaneLevelCritical~0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2) (or .cse3 .cse2 (not (= 0 ~systemActive~0))) (or .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0))) (or .cse3 .cse1 .cse2 (= |old(~waterLevel~0)| ~waterLevel~0)))) [2021-12-06 17:02:14,188 INFO L858 garLoopResultBuilder]: For program point L391(line 391) no Hoare annotation was computed. [2021-12-06 17:02:14,188 INFO L858 garLoopResultBuilder]: For program point timeShiftFINAL(lines 65 88) no Hoare annotation was computed. [2021-12-06 17:02:14,188 INFO L858 garLoopResultBuilder]: For program point L69-1(lines 68 87) no Hoare annotation was computed. [2021-12-06 17:02:14,189 INFO L854 garLoopResultBuilder]: At program point L392(lines 387 394) the Hoare annotation is: (let ((.cse0 (not (<= 0 ~methaneLevelCritical~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (= 0 ~systemActive~0))) (or (not (= 1 ~systemActive~0)) .cse0))) [2021-12-06 17:02:14,189 INFO L854 garLoopResultBuilder]: At program point L867(line 867) the Hoare annotation is: (let ((.cse1 (not (= 1 ~systemActive~0))) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (= ~pumpRunning~0 0)) (.cse4 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse2 (not (<= 0 ~methaneLevelCritical~0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2) (or .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0))) (or .cse3 .cse1 .cse2 .cse4) (or .cse3 (and .cse0 .cse4) .cse2 (not (= 0 ~systemActive~0))))) [2021-12-06 17:02:14,189 INFO L858 garLoopResultBuilder]: For program point L867-1(line 867) no Hoare annotation was computed. [2021-12-06 17:02:14,189 INFO L854 garLoopResultBuilder]: At program point L223(lines 218 226) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse3 (not (= 0 ~systemActive~0))) (.cse7 (= ~pumpRunning~0 0)) (.cse8 (= |timeShift_isPumpRunning_#res#1| 0)) (.cse5 (not (<= 1 ~methaneLevelCritical~0))) (.cse4 (not (= 1 ~systemActive~0))) (.cse1 (not (<= ~methaneLevelCritical~0 0))) (.cse2 (not (<= 0 ~methaneLevelCritical~0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse4 .cse5 .cse6) (or .cse0 .cse5 (and .cse7 .cse8 .cse6) .cse3) (or .cse4 (and .cse7 .cse8) .cse5) (or .cse4 .cse1 .cse2))) [2021-12-06 17:02:14,189 INFO L858 garLoopResultBuilder]: For program point L157(lines 157 165) no Hoare annotation was computed. [2021-12-06 17:02:14,189 INFO L858 garLoopResultBuilder]: For program point L153(lines 153 170) no Hoare annotation was computed. [2021-12-06 17:02:14,189 INFO L854 garLoopResultBuilder]: At program point timeShiftENTRY(lines 65 88) the Hoare annotation is: (let ((.cse0 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse1 (not (<= 0 ~methaneLevelCritical~0)))) (and (or (not (= 1 ~systemActive~0)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0) .cse1) (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) .cse0) .cse1 (not (= 0 ~systemActive~0))))) [2021-12-06 17:02:14,190 INFO L858 garLoopResultBuilder]: For program point L76-1(lines 76 82) no Hoare annotation was computed. [2021-12-06 17:02:14,190 INFO L858 garLoopResultBuilder]: For program point timeShiftEXIT(lines 65 88) no Hoare annotation was computed. [2021-12-06 17:02:14,190 INFO L858 garLoopResultBuilder]: For program point L873(lines 873 879) no Hoare annotation was computed. [2021-12-06 17:02:14,190 INFO L858 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 391) no Hoare annotation was computed. [2021-12-06 17:02:14,190 INFO L858 garLoopResultBuilder]: For program point L869(lines 869 882) no Hoare annotation was computed. [2021-12-06 17:02:14,190 INFO L854 garLoopResultBuilder]: At program point L869-1(lines 861 885) the Hoare annotation is: (let ((.cse3 (not (<= 1 ~methaneLevelCritical~0))) (.cse4 (not (= 0 ~systemActive~0))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse5 (not (= 1 ~systemActive~0))) (.cse8 (not (<= ~methaneLevelCritical~0 0))) (.cse9 (not (<= 0 ~methaneLevelCritical~0))) (.cse1 (= ~pumpRunning~0 0)) (.cse6 (< 0 (+ |timeShift___utac_acc__Specification1_spec__1_~tmp~11#1| 1))) (.cse7 (<= |timeShift___utac_acc__Specification1_spec__1_~tmp~11#1| 0))) (and (or .cse0 (and .cse1 .cse2) .cse3 .cse4) (or .cse1 .cse5 .cse3) (or .cse0 (and .cse1 .cse6 .cse2 .cse7) .cse8 .cse9 .cse4) (or .cse0 .cse5 .cse9 .cse2) (or .cse5 (and (<= 2 ~waterLevel~0) .cse6 .cse7) .cse8 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse6 .cse7) .cse9 (and .cse1 .cse6 .cse7)))) [2021-12-06 17:02:14,190 INFO L854 garLoopResultBuilder]: At program point L163(line 163) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (<= 0 ~methaneLevelCritical~0)))) (and (or .cse0 .cse1 .cse2) (or .cse1 (not (<= 1 ~methaneLevelCritical~0))) (or .cse0 .cse2 (not (= 0 ~systemActive~0))) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 .cse2))) [2021-12-06 17:02:14,191 INFO L854 garLoopResultBuilder]: At program point L378(lines 329 379) the Hoare annotation is: false [2021-12-06 17:02:14,191 INFO L854 garLoopResultBuilder]: At program point L1006(lines 1002 1008) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0) (= ~waterLevel~0 1)) [2021-12-06 17:02:14,191 INFO L858 garLoopResultBuilder]: For program point L366(lines 366 372) no Hoare annotation was computed. [2021-12-06 17:02:14,191 INFO L854 garLoopResultBuilder]: At program point L366-2(lines 360 373) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse1 (<= 0 ~methaneLevelCritical~0))) (or (and (= 1 ~systemActive~0) .cse0 .cse1) (and (= ~pumpRunning~0 0) .cse0 .cse1 (= 0 ~systemActive~0)))) [2021-12-06 17:02:14,191 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-06 17:02:14,191 INFO L858 garLoopResultBuilder]: For program point L350(lines 350 356) no Hoare annotation was computed. [2021-12-06 17:02:14,191 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-06 17:02:14,191 INFO L858 garLoopResultBuilder]: For program point L350-1(lines 350 356) no Hoare annotation was computed. [2021-12-06 17:02:14,191 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-06 17:02:14,191 INFO L854 garLoopResultBuilder]: At program point L313(lines 301 315) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (<= 0 ~methaneLevelCritical~0) (= 0 ~systemActive~0)) [2021-12-06 17:02:14,192 INFO L854 garLoopResultBuilder]: At program point L375(lines 330 377) the Hoare annotation is: (let ((.cse2 (<= 0 ~methaneLevelCritical~0)) (.cse3 (= ~pumpRunning~0 0)) (.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 (<= ~methaneLevelCritical~0 0) .cse1 .cse2) (and .cse3 .cse1 .cse2 (= 0 ~systemActive~0)) (and .cse3 (<= 1 ~methaneLevelCritical~0) .cse0 .cse1))) [2021-12-06 17:02:14,192 INFO L854 garLoopResultBuilder]: At program point L342(line 342) the Hoare annotation is: (let ((.cse2 (<= 0 ~methaneLevelCritical~0)) (.cse3 (= ~pumpRunning~0 0)) (.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 (<= ~methaneLevelCritical~0 0) .cse1 .cse2) (and .cse3 .cse1 .cse2 (= 0 ~systemActive~0)) (and .cse3 (<= 1 ~methaneLevelCritical~0) .cse0 .cse1))) [2021-12-06 17:02:14,192 INFO L854 garLoopResultBuilder]: At program point L821(lines 817 823) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0) (= ~waterLevel~0 1)) [2021-12-06 17:02:14,192 INFO L858 garLoopResultBuilder]: For program point L305(lines 305 311) no Hoare annotation was computed. [2021-12-06 17:02:14,192 INFO L858 garLoopResultBuilder]: For program point L305-1(lines 305 311) no Hoare annotation was computed. [2021-12-06 17:02:14,192 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-06 17:02:14,192 INFO L858 garLoopResultBuilder]: For program point L847(lines 847 854) no Hoare annotation was computed. [2021-12-06 17:02:14,192 INFO L858 garLoopResultBuilder]: For program point L847-2(lines 847 854) no Hoare annotation was computed. [2021-12-06 17:02:14,192 INFO L858 garLoopResultBuilder]: For program point L331(lines 330 377) no Hoare annotation was computed. [2021-12-06 17:02:14,193 INFO L858 garLoopResultBuilder]: For program point L360(lines 360 373) no Hoare annotation was computed. [2021-12-06 17:02:14,193 INFO L854 garLoopResultBuilder]: At program point L352(line 352) the Hoare annotation is: (let ((.cse2 (<= 0 ~methaneLevelCritical~0)) (.cse3 (= ~pumpRunning~0 0)) (.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 (<= ~methaneLevelCritical~0 0) .cse1 .cse2) (and .cse3 .cse1 .cse2 (= 0 ~systemActive~0)) (and .cse3 (<= 1 ~methaneLevelCritical~0) .cse0 .cse1))) [2021-12-06 17:02:14,193 INFO L861 garLoopResultBuilder]: At program point L831(lines 824 833) the Hoare annotation is: true [2021-12-06 17:02:14,193 INFO L854 garLoopResultBuilder]: At program point L1021(lines 1016 1024) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0) (= ~waterLevel~0 1)) [2021-12-06 17:02:14,193 INFO L861 garLoopResultBuilder]: At program point L381(lines 320 385) the Hoare annotation is: true [2021-12-06 17:02:14,193 INFO L861 garLoopResultBuilder]: At program point L856(lines 837 859) the Hoare annotation is: true [2021-12-06 17:02:14,193 INFO L854 garLoopResultBuilder]: At program point L1013(lines 1009 1015) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0) (= ~waterLevel~0 1)) [2021-12-06 17:02:14,193 INFO L858 garLoopResultBuilder]: For program point L340(lines 340 346) no Hoare annotation was computed. [2021-12-06 17:02:14,194 INFO L858 garLoopResultBuilder]: For program point L340-1(lines 340 346) no Hoare annotation was computed. [2021-12-06 17:02:14,194 INFO L854 garLoopResultBuilder]: At program point L307(line 307) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse1 (<= 0 ~methaneLevelCritical~0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1 (not (= 0 ~systemActive~0))) (and (= 1 ~systemActive~0) .cse0 .cse1))) [2021-12-06 17:02:14,194 INFO L858 garLoopResultBuilder]: For program point L332(lines 332 336) no Hoare annotation was computed. [2021-12-06 17:02:14,194 INFO L854 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 97 121) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0 (not (<= 1 ~methaneLevelCritical~0))) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (<= ~methaneLevelCritical~0 0)) (not (<= 0 ~methaneLevelCritical~0))))) [2021-12-06 17:02:14,194 INFO L854 garLoopResultBuilder]: At program point L116(line 116) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= 0 ~methaneLevelCritical~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (<= ~methaneLevelCritical~0 0)) .cse1))) [2021-12-06 17:02:14,194 INFO L858 garLoopResultBuilder]: For program point L116-1(lines 97 121) no Hoare annotation was computed. [2021-12-06 17:02:14,194 INFO L858 garLoopResultBuilder]: For program point L971(lines 971 977) no Hoare annotation was computed. [2021-12-06 17:02:14,194 INFO L858 garLoopResultBuilder]: For program point L189(lines 189 195) no Hoare annotation was computed. [2021-12-06 17:02:14,194 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 97 121) no Hoare annotation was computed. [2021-12-06 17:02:14,195 INFO L854 garLoopResultBuilder]: At program point L187(line 187) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~pumpRunning~0 0) (<= 2 ~waterLevel~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0))) (or .cse0 .cse1 (not (<= ~methaneLevelCritical~0 0)) (not (<= 0 ~methaneLevelCritical~0))))) [2021-12-06 17:02:14,195 INFO L854 garLoopResultBuilder]: At program point L189-2(lines 182 198) the Hoare annotation is: (let ((.cse1 (not (= 1 ~systemActive~0))) (.cse0 (<= 2 ~waterLevel~0))) (and (or (and (= ~pumpRunning~0 0) (<= ~methaneLevelCritical~0 |processEnvironment__wrappee__highWaterSensor_activatePump_~tmp~3#1|) .cse0) (not (= |old(~pumpRunning~0)| 0)) .cse1 (not (<= 1 ~methaneLevelCritical~0))) (or .cse1 .cse0 (not (<= ~methaneLevelCritical~0 0)) (not (<= 0 ~methaneLevelCritical~0))))) [2021-12-06 17:02:14,195 INFO L858 garLoopResultBuilder]: For program point L187-1(line 187) no Hoare annotation was computed. [2021-12-06 17:02:14,195 INFO L854 garLoopResultBuilder]: At program point L278(lines 263 281) the Hoare annotation is: (let ((.cse3 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse4 (= ~pumpRunning~0 0)) (.cse5 (= 1 ~systemActive~0))) (let ((.cse0 (not .cse5)) (.cse1 (and .cse3 .cse4 (<= 2 ~waterLevel~0))) (.cse2 (and .cse3 .cse4 .cse5 (not (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp~4#1| 0)) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1| 0) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp___0~0#1| 0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0)) .cse2) (or .cse0 .cse1 (not (<= ~methaneLevelCritical~0 0)) (not (<= 0 ~methaneLevelCritical~0)) .cse2)))) [2021-12-06 17:02:14,195 INFO L854 garLoopResultBuilder]: At program point L179(lines 174 181) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (<= 2 ~waterLevel~0) (not (<= ~methaneLevelCritical~0 0)) (not (<= 0 ~methaneLevelCritical~0))) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 ~methaneLevelCritical~0))))) [2021-12-06 17:02:14,195 INFO L854 garLoopResultBuilder]: At program point L976(lines 967 980) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse3 (= ~pumpRunning~0 0))) (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (and .cse2 .cse3 (<= 2 ~waterLevel~0))) (.cse4 (not (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 0)))) (and (or .cse0 .cse1 (and .cse2 .cse3 .cse4) (not (<= ~methaneLevelCritical~0 0)) (not (<= 0 ~methaneLevelCritical~0))) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1 (and .cse3 .cse4) (not (<= 1 ~methaneLevelCritical~0)))))) [2021-12-06 17:02:14,195 INFO L858 garLoopResultBuilder]: For program point L272(lines 272 276) no Hoare annotation was computed. [2021-12-06 17:02:14,196 INFO L854 garLoopResultBuilder]: At program point L111(line 111) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~pumpRunning~0 0) (= |processEnvironment__wrappee__highWaterSensor_~tmp~0#1| 0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1) (or .cse0 (not (<= ~methaneLevelCritical~0 0)) (not (<= 0 ~methaneLevelCritical~0)) .cse1))) [2021-12-06 17:02:14,196 INFO L858 garLoopResultBuilder]: For program point L272-2(lines 272 276) no Hoare annotation was computed. [2021-12-06 17:02:14,196 INFO L858 garLoopResultBuilder]: For program point L105(lines 105 113) no Hoare annotation was computed. [2021-12-06 17:02:14,196 INFO L858 garLoopResultBuilder]: For program point L101(lines 101 118) no Hoare annotation was computed. [2021-12-06 17:02:14,196 INFO L858 garLoopResultBuilder]: For program point waterRiseEXIT(lines 902 913) no Hoare annotation was computed. [2021-12-06 17:02:14,196 INFO L858 garLoopResultBuilder]: For program point L906-1(lines 902 913) no Hoare annotation was computed. [2021-12-06 17:02:14,196 INFO L854 garLoopResultBuilder]: At program point waterRiseENTRY(lines 902 913) the Hoare annotation is: (let ((.cse1 (not (<= 0 ~methaneLevelCritical~0))) (.cse0 (not (= ~pumpRunning~0 0))) (.cse3 (not (= 1 ~systemActive~0))) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 .cse1 .cse2 (not (= 0 ~systemActive~0))) (or .cse3 (not (<= ~methaneLevelCritical~0 0)) .cse1 .cse2) (or .cse0 .cse3 (not (<= 1 ~methaneLevelCritical~0)) .cse2))) [2021-12-06 17:02:14,196 INFO L861 garLoopResultBuilder]: At program point isMethaneAlarmENTRY(lines 207 217) the Hoare annotation is: true [2021-12-06 17:02:14,196 INFO L858 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 207 217) no Hoare annotation was computed. [2021-12-06 17:02:14,197 INFO L858 garLoopResultBuilder]: For program point isMethaneAlarmFINAL(lines 207 217) no Hoare annotation was computed. [2021-12-06 17:02:14,197 INFO L861 garLoopResultBuilder]: At program point L212(line 212) the Hoare annotation is: true [2021-12-06 17:02:14,197 INFO L858 garLoopResultBuilder]: For program point L212-1(line 212) no Hoare annotation was computed. [2021-12-06 17:02:14,200 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:02:14,201 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 17:02:14,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 05:02:14 BoogieIcfgContainer [2021-12-06 17:02:14,226 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 17:02:14,226 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 17:02:14,226 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 17:02:14,227 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 17:02:14,227 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:02:07" (3/4) ... [2021-12-06 17:02:14,230 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-06 17:02:14,236 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2021-12-06 17:02:14,236 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2021-12-06 17:02:14,236 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2021-12-06 17:02:14,236 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2021-12-06 17:02:14,236 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2021-12-06 17:02:14,236 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2021-12-06 17:02:14,237 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2021-12-06 17:02:14,237 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2021-12-06 17:02:14,237 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2021-12-06 17:02:14,237 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2021-12-06 17:02:14,245 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 52 nodes and edges [2021-12-06 17:02:14,246 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2021-12-06 17:02:14,246 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-06 17:02:14,247 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-06 17:02:14,248 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-06 17:02:14,248 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-06 17:02:14,249 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-06 17:02:14,273 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(0 <= methaneLevelCritical)) && ((!(\old(pumpRunning) == 0) || !(0 <= methaneLevelCritical)) || !(0 == systemActive))) && ((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(0 <= methaneLevelCritical)) [2021-12-06 17:02:14,273 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((pumpRunning == \old(pumpRunning) || pumpRunning == 0) || !(1 == systemActive)) || 2 <= waterLevel) || !(0 <= methaneLevelCritical)) && ((!(\old(pumpRunning) == 0) || !(0 <= methaneLevelCritical)) || !(0 == systemActive))) && ((pumpRunning == 0 || !(1 == systemActive)) || !(1 <= methaneLevelCritical))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(0 <= methaneLevelCritical)) || \old(waterLevel) == waterLevel) [2021-12-06 17:02:14,274 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 <= methaneLevelCritical)) || !(0 == systemActive)) && ((pumpRunning == 0 || !(1 == systemActive)) || !(1 <= methaneLevelCritical))) && ((((!(\old(pumpRunning) == 0) || (((pumpRunning == 0 && 0 < tmp + 1) && \old(waterLevel) == waterLevel) && tmp <= 0)) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) || !(0 == systemActive))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(0 <= methaneLevelCritical)) || \old(waterLevel) == waterLevel)) && (((((!(1 == systemActive) || ((2 <= waterLevel && 0 < tmp + 1) && tmp <= 0)) || !(methaneLevelCritical <= 0)) || ((pumpRunning == \old(pumpRunning) && 0 < tmp + 1) && tmp <= 0)) || !(0 <= methaneLevelCritical)) || ((pumpRunning == 0 && 0 < tmp + 1) && tmp <= 0)) [2021-12-06 17:02:14,275 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(pumpRunning) == 0) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) || !(0 == systemActive)) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || \old(waterLevel) == waterLevel)) && (((!(\old(pumpRunning) == 0) || !(1 <= methaneLevelCritical)) || ((pumpRunning == 0 && \result == 0) && \old(waterLevel) == waterLevel)) || !(0 == systemActive))) && ((!(1 == systemActive) || (pumpRunning == 0 && \result == 0)) || !(1 <= methaneLevelCritical))) && ((!(1 == systemActive) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) [2021-12-06 17:02:14,275 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((pumpRunning == 0 && methaneLevelCritical <= tmp) && 2 <= waterLevel) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) && (((!(1 == systemActive) || 2 <= waterLevel) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) [2021-12-06 17:02:14,275 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(1 == systemActive) || 2 <= waterLevel) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) [2021-12-06 17:02:14,275 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(0 <= methaneLevelCritical)) && (((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) [2021-12-06 17:02:14,276 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(1 == systemActive) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 2 <= waterLevel)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && !(\result == 0))) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 2 <= waterLevel)) || (pumpRunning == 0 && !(\result == 0))) || !(1 <= methaneLevelCritical)) [2021-12-06 17:02:14,276 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(0 <= methaneLevelCritical)) || !(0 == systemActive)) && (!(1 == systemActive) || !(0 <= methaneLevelCritical)) [2021-12-06 17:02:14,276 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(0 <= methaneLevelCritical)) && (((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) [2021-12-06 17:02:14,276 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 2 <= waterLevel)) || !(1 <= methaneLevelCritical)) || (((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 1 == systemActive) && !(tmp == 0)) && \result == 0) && tmp___0 == 0)) && ((((!(1 == systemActive) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 2 <= waterLevel)) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) || (((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 1 == systemActive) && !(tmp == 0)) && \result == 0) && tmp___0 == 0)) [2021-12-06 17:02:14,305 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0103d3cb-2129-43dc-9f3b-c969a3c6c56a/bin/uautomizer-DrprNOufMa/witness.graphml [2021-12-06 17:02:14,305 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 17:02:14,306 INFO L158 Benchmark]: Toolchain (without parser) took 7888.94ms. Allocated memory was 113.2MB in the beginning and 163.6MB in the end (delta: 50.3MB). Free memory was 76.4MB in the beginning and 124.2MB in the end (delta: -47.8MB). Peak memory consumption was 3.5MB. Max. memory is 16.1GB. [2021-12-06 17:02:14,306 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 113.2MB. Free memory is still 93.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 17:02:14,306 INFO L158 Benchmark]: CACSL2BoogieTranslator took 312.74ms. Allocated memory is still 113.2MB. Free memory was 76.2MB in the beginning and 81.3MB in the end (delta: -5.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-06 17:02:14,307 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.83ms. Allocated memory is still 113.2MB. Free memory was 81.3MB in the beginning and 78.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 17:02:14,307 INFO L158 Benchmark]: Boogie Preprocessor took 21.79ms. Allocated memory is still 113.2MB. Free memory was 78.7MB in the beginning and 77.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 17:02:14,307 INFO L158 Benchmark]: RCFGBuilder took 361.77ms. Allocated memory is still 113.2MB. Free memory was 77.1MB in the beginning and 59.8MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-06 17:02:14,307 INFO L158 Benchmark]: TraceAbstraction took 7071.36ms. Allocated memory was 113.2MB in the beginning and 163.6MB in the end (delta: 50.3MB). Free memory was 59.2MB in the beginning and 131.5MB in the end (delta: -72.3MB). Peak memory consumption was 68.7MB. Max. memory is 16.1GB. [2021-12-06 17:02:14,308 INFO L158 Benchmark]: Witness Printer took 79.15ms. Allocated memory is still 163.6MB. Free memory was 131.5MB in the beginning and 124.2MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-06 17:02:14,309 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 113.2MB. Free memory is still 93.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 312.74ms. Allocated memory is still 113.2MB. Free memory was 76.2MB in the beginning and 81.3MB in the end (delta: -5.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.83ms. Allocated memory is still 113.2MB. Free memory was 81.3MB in the beginning and 78.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.79ms. Allocated memory is still 113.2MB. Free memory was 78.7MB in the beginning and 77.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 361.77ms. Allocated memory is still 113.2MB. Free memory was 77.1MB in the beginning and 59.8MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 7071.36ms. Allocated memory was 113.2MB in the beginning and 163.6MB in the end (delta: 50.3MB). Free memory was 59.2MB in the beginning and 131.5MB in the end (delta: -72.3MB). Peak memory consumption was 68.7MB. Max. memory is 16.1GB. * Witness Printer took 79.15ms. Allocated memory is still 163.6MB. Free memory was 131.5MB in the beginning and 124.2MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. 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: 391]: 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 11 procedures, 112 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.0s, OverallIterations: 11, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.5s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1793 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1742 mSDsluCounter, 5088 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3484 mSDsCounter, 618 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1697 IncrementalHoareTripleChecker+Invalid, 2315 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 618 mSolverCounterUnsat, 1604 mSDtfsCounter, 1697 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 409 GetRequests, 301 SyntacticMatches, 2 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1357occurred in iteration=8, InterpolantAutomatonStates: 90, 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, 193 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 51 LocationsWithAnnotation, 2590 PreInvPairs, 2875 NumberOfFragments, 1596 HoareAnnotationTreeSize, 2590 FomulaSimplifications, 1406 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 51 FomulaSimplificationsInter, 17972 FormulaSimplificationTreeSizeReductionInter, 2.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 817 NumberOfCodeBlocks, 817 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 804 ConstructedInterpolants, 0 QuantifiedInterpolants, 1654 SizeOfPredicates, 6 NumberOfNonLiveVariables, 913 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 13 InterpolantComputations, 11 PerfectInterpolantSequences, 124/138 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: 149]: Loop Invariant Derived loop invariant: ((((((pumpRunning == \old(pumpRunning) || pumpRunning == 0) || !(1 == systemActive)) || 2 <= waterLevel) || !(0 <= methaneLevelCritical)) && ((!(\old(pumpRunning) == 0) || !(0 <= methaneLevelCritical)) || !(0 == systemActive))) && ((pumpRunning == 0 || !(1 == systemActive)) || !(1 <= methaneLevelCritical))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(0 <= methaneLevelCritical)) || \old(waterLevel) == waterLevel) - InvariantResult [Line: 218]: Loop Invariant Derived loop invariant: ((((((!(\old(pumpRunning) == 0) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) || !(0 == systemActive)) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || \old(waterLevel) == waterLevel)) && (((!(\old(pumpRunning) == 0) || !(1 <= methaneLevelCritical)) || ((pumpRunning == 0 && \result == 0) && \old(waterLevel) == waterLevel)) || !(0 == systemActive))) && ((!(1 == systemActive) || (pumpRunning == 0 && \result == 0)) || !(1 <= methaneLevelCritical))) && ((!(1 == systemActive) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) - InvariantResult [Line: 1016]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && 1 == systemActive) && methaneLevelCritical <= 0) && 0 <= methaneLevelCritical) && waterLevel == 1 - InvariantResult [Line: 263]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 2 <= waterLevel)) || !(1 <= methaneLevelCritical)) || (((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 1 == systemActive) && !(tmp == 0)) && \result == 0) && tmp___0 == 0)) && ((((!(1 == systemActive) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 2 <= waterLevel)) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) || (((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 1 == systemActive) && !(tmp == 0)) && \result == 0) && tmp___0 == 0)) - InvariantResult [Line: 824]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(0 <= methaneLevelCritical)) && ((!(\old(pumpRunning) == 0) || !(0 <= methaneLevelCritical)) || !(0 == systemActive))) && ((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(0 <= methaneLevelCritical)) - InvariantResult [Line: 301]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && splverifierCounter == 0) && 0 <= methaneLevelCritical) && 0 == systemActive - InvariantResult [Line: 817]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && 1 == systemActive) && methaneLevelCritical <= 0) && 0 <= methaneLevelCritical) && waterLevel == 1 - InvariantResult [Line: 282]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(0 <= methaneLevelCritical)) && (((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) - InvariantResult [Line: 981]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(0 <= methaneLevelCritical)) && (((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) - InvariantResult [Line: 861]: Loop Invariant Derived loop invariant: ((((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 <= methaneLevelCritical)) || !(0 == systemActive)) && ((pumpRunning == 0 || !(1 == systemActive)) || !(1 <= methaneLevelCritical))) && ((((!(\old(pumpRunning) == 0) || (((pumpRunning == 0 && 0 < tmp + 1) && \old(waterLevel) == waterLevel) && tmp <= 0)) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) || !(0 == systemActive))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(0 <= methaneLevelCritical)) || \old(waterLevel) == waterLevel)) && (((((!(1 == systemActive) || ((2 <= waterLevel && 0 < tmp + 1) && tmp <= 0)) || !(methaneLevelCritical <= 0)) || ((pumpRunning == \old(pumpRunning) && 0 < tmp + 1) && tmp <= 0)) || !(0 <= methaneLevelCritical)) || ((pumpRunning == 0 && 0 < tmp + 1) && tmp <= 0)) - InvariantResult [Line: 387]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(0 <= methaneLevelCritical)) || !(0 == systemActive)) && (!(1 == systemActive) || !(0 <= methaneLevelCritical)) - InvariantResult [Line: 182]: Loop Invariant Derived loop invariant: (((((pumpRunning == 0 && methaneLevelCritical <= tmp) && 2 <= waterLevel) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) && (((!(1 == systemActive) || 2 <= waterLevel) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) - InvariantResult [Line: 329]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 837]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 773]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 330]: Loop Invariant Derived loop invariant: ((((1 == systemActive && methaneLevelCritical <= 0) && splverifierCounter == 0) && 0 <= methaneLevelCritical) || (((pumpRunning == 0 && splverifierCounter == 0) && 0 <= methaneLevelCritical) && 0 == systemActive)) || (((pumpRunning == 0 && 1 <= methaneLevelCritical) && 1 == systemActive) && splverifierCounter == 0) - InvariantResult [Line: 1009]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && 1 == systemActive) && methaneLevelCritical <= 0) && 0 <= methaneLevelCritical) && waterLevel == 1 - InvariantResult [Line: 1002]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && 1 == systemActive) && methaneLevelCritical <= 0) && 0 <= methaneLevelCritical) && waterLevel == 1 - InvariantResult [Line: 967]: Loop Invariant Derived loop invariant: ((((!(1 == systemActive) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 2 <= waterLevel)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && !(\result == 0))) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 2 <= waterLevel)) || (pumpRunning == 0 && !(\result == 0))) || !(1 <= methaneLevelCritical)) - InvariantResult [Line: 763]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 174]: Loop Invariant Derived loop invariant: (((!(1 == systemActive) || 2 <= waterLevel) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) - InvariantResult [Line: 320]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-12-06 17:02:14,351 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0103d3cb-2129-43dc-9f3b-c969a3c6c56a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE