./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f97de893-70f3-49da-9770-79fa0e8791d0/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f97de893-70f3-49da-9770-79fa0e8791d0/bin/uautomizer-Z5i5R5N3CC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f97de893-70f3-49da-9770-79fa0e8791d0/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f97de893-70f3-49da-9770-79fa0e8791d0/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f97de893-70f3-49da-9770-79fa0e8791d0/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f97de893-70f3-49da-9770-79fa0e8791d0/bin/uautomizer-Z5i5R5N3CC --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 4c6f182587f107e711c974ed9b8b1e5162ebb6f5 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 00:26:23,768 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:26:23,770 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:26:23,804 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:26:23,805 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:26:23,810 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:26:23,813 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:26:23,817 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:26:23,820 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:26:23,827 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:26:23,828 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:26:23,829 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:26:23,830 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:26:23,833 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:26:23,835 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:26:23,837 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:26:23,839 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:26:23,842 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:26:23,845 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:26:23,854 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:26:23,856 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:26:23,858 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:26:23,861 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:26:23,863 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:26:23,872 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:26:23,872 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:26:23,873 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:26:23,875 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:26:23,876 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:26:23,877 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:26:23,878 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:26:23,879 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:26:23,881 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:26:23,882 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:26:23,883 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:26:23,884 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:26:23,885 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:26:23,885 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:26:23,885 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:26:23,886 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:26:23,887 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:26:23,890 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f97de893-70f3-49da-9770-79fa0e8791d0/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-11 00:26:23,933 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:26:23,934 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:26:23,936 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:26:23,936 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:26:23,936 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:26:23,937 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:26:23,937 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:26:23,938 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:26:23,938 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:26:23,938 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:26:23,946 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:26:23,946 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:26:23,946 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:26:23,947 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:26:23,947 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:26:23,947 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:26:23,947 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:26:23,948 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:26:23,948 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:26:23,948 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:26:23,949 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:26:23,949 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:26:23,949 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:26:23,949 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:26:23,950 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:26:23,950 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:26:23,950 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:26:23,950 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:26:23,951 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_f97de893-70f3-49da-9770-79fa0e8791d0/bin/uautomizer-Z5i5R5N3CC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f97de893-70f3-49da-9770-79fa0e8791d0/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c6f182587f107e711c974ed9b8b1e5162ebb6f5 [2021-10-11 00:26:24,262 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:26:24,295 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:26:24,300 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:26:24,302 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:26:24,303 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:26:24,304 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f97de893-70f3-49da-9770-79fa0e8791d0/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c [2021-10-11 00:26:24,389 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f97de893-70f3-49da-9770-79fa0e8791d0/bin/uautomizer-Z5i5R5N3CC/data/0d1d8c243/d8c83d2e872a402684e8fb0755affe5d/FLAG3079708b8 [2021-10-11 00:26:25,109 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:26:25,110 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f97de893-70f3-49da-9770-79fa0e8791d0/sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c [2021-10-11 00:26:25,126 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f97de893-70f3-49da-9770-79fa0e8791d0/bin/uautomizer-Z5i5R5N3CC/data/0d1d8c243/d8c83d2e872a402684e8fb0755affe5d/FLAG3079708b8 [2021-10-11 00:26:25,379 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f97de893-70f3-49da-9770-79fa0e8791d0/bin/uautomizer-Z5i5R5N3CC/data/0d1d8c243/d8c83d2e872a402684e8fb0755affe5d [2021-10-11 00:26:25,382 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:26:25,383 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:26:25,397 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:26:25,397 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:26:25,403 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:26:25,404 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:26:25" (1/1) ... [2021-10-11 00:26:25,405 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18c265aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:26:25, skipping insertion in model container [2021-10-11 00:26:25,406 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:26:25" (1/1) ... [2021-10-11 00:26:25,416 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:26:25,487 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:26:26,007 WARN L226 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_f97de893-70f3-49da-9770-79fa0e8791d0/sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c[18367,18380] [2021-10-11 00:26:26,012 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:26:26,036 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:26:26,181 WARN L226 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_f97de893-70f3-49da-9770-79fa0e8791d0/sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c[18367,18380] [2021-10-11 00:26:26,182 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:26:26,235 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:26:26,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:26:26 WrapperNode [2021-10-11 00:26:26,236 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:26:26,238 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:26:26,238 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:26:26,240 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:26:26,249 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:26:26" (1/1) ... [2021-10-11 00:26:26,283 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:26:26" (1/1) ... [2021-10-11 00:26:26,356 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:26:26,370 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:26:26,372 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:26:26,373 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:26:26,383 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:26:26" (1/1) ... [2021-10-11 00:26:26,384 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:26:26" (1/1) ... [2021-10-11 00:26:26,398 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:26:26" (1/1) ... [2021-10-11 00:26:26,398 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:26:26" (1/1) ... [2021-10-11 00:26:26,434 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:26:26" (1/1) ... [2021-10-11 00:26:26,453 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:26:26" (1/1) ... [2021-10-11 00:26:26,456 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:26:26" (1/1) ... [2021-10-11 00:26:26,460 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:26:26,462 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:26:26,462 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:26:26,462 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:26:26,463 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:26:26" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f97de893-70f3-49da-9770-79fa0e8791d0/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:26:26,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:26:26,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 00:26:26,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:26:26,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:26:27,892 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:26:27,892 INFO L299 CfgBuilder]: Removed 192 assume(true) statements. [2021-10-11 00:26:27,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:26:27 BoogieIcfgContainer [2021-10-11 00:26:27,896 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:26:27,898 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:26:27,899 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:26:27,902 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:26:27,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:26:25" (1/3) ... [2021-10-11 00:26:27,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45fb787d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:26:27, skipping insertion in model container [2021-10-11 00:26:27,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:26:26" (2/3) ... [2021-10-11 00:26:27,905 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45fb787d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:26:27, skipping insertion in model container [2021-10-11 00:26:27,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:26:27" (3/3) ... [2021-10-11 00:26:27,907 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product57.cil.c [2021-10-11 00:26:27,919 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:26:27,922 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2021-10-11 00:26:27,931 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-11 00:26:27,963 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:26:27,964 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:26:27,964 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:26:27,964 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:26:27,964 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:26:27,964 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:26:27,964 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:26:27,965 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:26:27,984 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states. [2021-10-11 00:26:27,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-11 00:26:27,991 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:26:27,992 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:26:27,992 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:26:27,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:26:27,999 INFO L82 PathProgramCache]: Analyzing trace with hash 1916587088, now seen corresponding path program 1 times [2021-10-11 00:26:28,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:26:28,010 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846516278] [2021-10-11 00:26:28,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:26:28,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:26:28,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:26:28,352 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846516278] [2021-10-11 00:26:28,353 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:26:28,354 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:26:28,355 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379998365] [2021-10-11 00:26:28,359 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 00:26:28,360 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:26:28,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 00:26:28,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 00:26:28,380 INFO L87 Difference]: Start difference. First operand 135 states. Second operand 2 states. [2021-10-11 00:26:28,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:26:28,446 INFO L93 Difference]: Finished difference Result 264 states and 395 transitions. [2021-10-11 00:26:28,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 00:26:28,447 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2021-10-11 00:26:28,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:26:28,467 INFO L225 Difference]: With dead ends: 264 [2021-10-11 00:26:28,467 INFO L226 Difference]: Without dead ends: 131 [2021-10-11 00:26:28,472 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 00:26:28,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2021-10-11 00:26:28,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2021-10-11 00:26:28,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2021-10-11 00:26:28,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 189 transitions. [2021-10-11 00:26:28,525 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 189 transitions. Word has length 16 [2021-10-11 00:26:28,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:26:28,526 INFO L481 AbstractCegarLoop]: Abstraction has 131 states and 189 transitions. [2021-10-11 00:26:28,526 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 00:26:28,526 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 189 transitions. [2021-10-11 00:26:28,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-11 00:26:28,527 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:26:28,527 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:26:28,528 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 00:26:28,528 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:26:28,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:26:28,529 INFO L82 PathProgramCache]: Analyzing trace with hash 869830191, now seen corresponding path program 1 times [2021-10-11 00:26:28,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:26:28,530 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390756557] [2021-10-11 00:26:28,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:26:28,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:26:28,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:26:28,688 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390756557] [2021-10-11 00:26:28,689 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:26:28,689 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:26:28,689 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415804179] [2021-10-11 00:26:28,690 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:26:28,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:26:28,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:26:28,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:26:28,694 INFO L87 Difference]: Start difference. First operand 131 states and 189 transitions. Second operand 3 states. [2021-10-11 00:26:28,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:26:28,724 INFO L93 Difference]: Finished difference Result 131 states and 189 transitions. [2021-10-11 00:26:28,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:26:28,725 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2021-10-11 00:26:28,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:26:28,726 INFO L225 Difference]: With dead ends: 131 [2021-10-11 00:26:28,728 INFO L226 Difference]: Without dead ends: 53 [2021-10-11 00:26:28,729 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:26:28,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-10-11 00:26:28,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2021-10-11 00:26:28,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2021-10-11 00:26:28,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 76 transitions. [2021-10-11 00:26:28,741 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 76 transitions. Word has length 17 [2021-10-11 00:26:28,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:26:28,742 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 76 transitions. [2021-10-11 00:26:28,742 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:26:28,743 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 76 transitions. [2021-10-11 00:26:28,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-11 00:26:28,744 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:26:28,745 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:26:28,746 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 00:26:28,746 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:26:28,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:26:28,749 INFO L82 PathProgramCache]: Analyzing trace with hash 105563969, now seen corresponding path program 1 times [2021-10-11 00:26:28,749 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:26:28,750 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698022191] [2021-10-11 00:26:28,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:26:28,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:26:28,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:26:28,839 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698022191] [2021-10-11 00:26:28,840 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:26:28,840 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:26:28,840 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667333805] [2021-10-11 00:26:28,840 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:26:28,841 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:26:28,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:26:28,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:26:28,842 INFO L87 Difference]: Start difference. First operand 53 states and 76 transitions. Second operand 3 states. [2021-10-11 00:26:28,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:26:28,848 INFO L93 Difference]: Finished difference Result 100 states and 146 transitions. [2021-10-11 00:26:28,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:26:28,849 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2021-10-11 00:26:28,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:26:28,850 INFO L225 Difference]: With dead ends: 100 [2021-10-11 00:26:28,850 INFO L226 Difference]: Without dead ends: 53 [2021-10-11 00:26:28,851 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:26:28,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-10-11 00:26:28,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2021-10-11 00:26:28,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2021-10-11 00:26:28,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 75 transitions. [2021-10-11 00:26:28,856 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 75 transitions. Word has length 22 [2021-10-11 00:26:28,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:26:28,857 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 75 transitions. [2021-10-11 00:26:28,857 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:26:28,857 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 75 transitions. [2021-10-11 00:26:28,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-11 00:26:28,858 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:26:28,858 INFO L422 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] [2021-10-11 00:26:28,858 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 00:26:28,859 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:26:28,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:26:28,859 INFO L82 PathProgramCache]: Analyzing trace with hash -72226312, now seen corresponding path program 1 times [2021-10-11 00:26:28,860 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:26:28,860 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618000980] [2021-10-11 00:26:28,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:26:28,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:26:28,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:26:28,918 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618000980] [2021-10-11 00:26:28,919 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:26:28,919 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:26:28,919 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177266835] [2021-10-11 00:26:28,919 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:26:28,920 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:26:28,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:26:28,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:26:28,921 INFO L87 Difference]: Start difference. First operand 53 states and 75 transitions. Second operand 3 states. [2021-10-11 00:26:28,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:26:28,994 INFO L93 Difference]: Finished difference Result 121 states and 174 transitions. [2021-10-11 00:26:28,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:26:28,994 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2021-10-11 00:26:28,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:26:28,996 INFO L225 Difference]: With dead ends: 121 [2021-10-11 00:26:28,996 INFO L226 Difference]: Without dead ends: 74 [2021-10-11 00:26:28,997 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:26:28,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-10-11 00:26:29,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 72. [2021-10-11 00:26:29,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2021-10-11 00:26:29,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 101 transitions. [2021-10-11 00:26:29,008 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 101 transitions. Word has length 24 [2021-10-11 00:26:29,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:26:29,008 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 101 transitions. [2021-10-11 00:26:29,008 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:26:29,009 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 101 transitions. [2021-10-11 00:26:29,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-11 00:26:29,010 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:26:29,010 INFO L422 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] [2021-10-11 00:26:29,010 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-11 00:26:29,011 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:26:29,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:26:29,012 INFO L82 PathProgramCache]: Analyzing trace with hash 615192364, now seen corresponding path program 1 times [2021-10-11 00:26:29,013 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:26:29,013 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77891482] [2021-10-11 00:26:29,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:26:29,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:26:29,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:26:29,146 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77891482] [2021-10-11 00:26:29,146 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:26:29,146 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 00:26:29,146 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439086368] [2021-10-11 00:26:29,147 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:26:29,148 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:26:29,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:26:29,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:26:29,150 INFO L87 Difference]: Start difference. First operand 72 states and 101 transitions. Second operand 5 states. [2021-10-11 00:26:29,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:26:29,300 INFO L93 Difference]: Finished difference Result 253 states and 363 transitions. [2021-10-11 00:26:29,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 00:26:29,301 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2021-10-11 00:26:29,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:26:29,305 INFO L225 Difference]: With dead ends: 253 [2021-10-11 00:26:29,305 INFO L226 Difference]: Without dead ends: 187 [2021-10-11 00:26:29,307 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-11 00:26:29,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2021-10-11 00:26:29,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 115. [2021-10-11 00:26:29,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2021-10-11 00:26:29,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 158 transitions. [2021-10-11 00:26:29,334 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 158 transitions. Word has length 30 [2021-10-11 00:26:29,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:26:29,335 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 158 transitions. [2021-10-11 00:26:29,335 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:26:29,336 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 158 transitions. [2021-10-11 00:26:29,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-11 00:26:29,342 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:26:29,342 INFO L422 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] [2021-10-11 00:26:29,342 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-11 00:26:29,342 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:26:29,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:26:29,344 INFO L82 PathProgramCache]: Analyzing trace with hash -1392623830, now seen corresponding path program 1 times [2021-10-11 00:26:29,344 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:26:29,345 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591099093] [2021-10-11 00:26:29,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:26:29,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:26:29,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:26:29,450 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591099093] [2021-10-11 00:26:29,450 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:26:29,450 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:26:29,451 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062320682] [2021-10-11 00:26:29,451 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 00:26:29,451 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:26:29,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:26:29,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:26:29,452 INFO L87 Difference]: Start difference. First operand 115 states and 158 transitions. Second operand 4 states. [2021-10-11 00:26:29,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:26:29,550 INFO L93 Difference]: Finished difference Result 238 states and 334 transitions. [2021-10-11 00:26:29,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 00:26:29,551 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2021-10-11 00:26:29,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:26:29,553 INFO L225 Difference]: With dead ends: 238 [2021-10-11 00:26:29,553 INFO L226 Difference]: Without dead ends: 172 [2021-10-11 00:26:29,556 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:26:29,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2021-10-11 00:26:29,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 169. [2021-10-11 00:26:29,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2021-10-11 00:26:29,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 233 transitions. [2021-10-11 00:26:29,596 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 233 transitions. Word has length 31 [2021-10-11 00:26:29,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:26:29,599 INFO L481 AbstractCegarLoop]: Abstraction has 169 states and 233 transitions. [2021-10-11 00:26:29,599 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 00:26:29,599 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 233 transitions. [2021-10-11 00:26:29,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-11 00:26:29,605 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:26:29,606 INFO L422 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] [2021-10-11 00:26:29,606 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-11 00:26:29,607 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:26:29,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:26:29,612 INFO L82 PathProgramCache]: Analyzing trace with hash -1134458392, now seen corresponding path program 1 times [2021-10-11 00:26:29,612 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:26:29,613 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832970283] [2021-10-11 00:26:29,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:26:29,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:26:29,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:26:29,679 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832970283] [2021-10-11 00:26:29,680 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:26:29,680 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 00:26:29,680 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721917850] [2021-10-11 00:26:29,681 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 00:26:29,682 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:26:29,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:26:29,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:26:29,683 INFO L87 Difference]: Start difference. First operand 169 states and 233 transitions. Second operand 4 states. [2021-10-11 00:26:29,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:26:29,758 INFO L93 Difference]: Finished difference Result 473 states and 664 transitions. [2021-10-11 00:26:29,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 00:26:29,759 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2021-10-11 00:26:29,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:26:29,763 INFO L225 Difference]: With dead ends: 473 [2021-10-11 00:26:29,764 INFO L226 Difference]: Without dead ends: 352 [2021-10-11 00:26:29,766 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:26:29,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2021-10-11 00:26:29,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 169. [2021-10-11 00:26:29,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2021-10-11 00:26:29,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 231 transitions. [2021-10-11 00:26:29,789 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 231 transitions. Word has length 31 [2021-10-11 00:26:29,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:26:29,789 INFO L481 AbstractCegarLoop]: Abstraction has 169 states and 231 transitions. [2021-10-11 00:26:29,789 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 00:26:29,790 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 231 transitions. [2021-10-11 00:26:29,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-11 00:26:29,791 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:26:29,792 INFO L422 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] [2021-10-11 00:26:29,792 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-11 00:26:29,792 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:26:29,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:26:29,793 INFO L82 PathProgramCache]: Analyzing trace with hash -1527485402, now seen corresponding path program 1 times [2021-10-11 00:26:29,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:26:29,794 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657261864] [2021-10-11 00:26:29,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:26:29,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:26:29,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:26:29,888 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657261864] [2021-10-11 00:26:29,888 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:26:29,888 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-11 00:26:29,888 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839385587] [2021-10-11 00:26:29,889 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 00:26:29,889 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:26:29,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 00:26:29,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:26:29,890 INFO L87 Difference]: Start difference. First operand 169 states and 231 transitions. Second operand 6 states. [2021-10-11 00:26:30,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:26:30,007 INFO L93 Difference]: Finished difference Result 592 states and 826 transitions. [2021-10-11 00:26:30,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 00:26:30,007 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2021-10-11 00:26:30,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:26:30,010 INFO L225 Difference]: With dead ends: 592 [2021-10-11 00:26:30,010 INFO L226 Difference]: Without dead ends: 429 [2021-10-11 00:26:30,011 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-10-11 00:26:30,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2021-10-11 00:26:30,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 178. [2021-10-11 00:26:30,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2021-10-11 00:26:30,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 238 transitions. [2021-10-11 00:26:30,028 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 238 transitions. Word has length 31 [2021-10-11 00:26:30,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:26:30,028 INFO L481 AbstractCegarLoop]: Abstraction has 178 states and 238 transitions. [2021-10-11 00:26:30,028 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 00:26:30,028 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 238 transitions. [2021-10-11 00:26:30,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-11 00:26:30,029 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:26:30,029 INFO L422 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, 1, 1] [2021-10-11 00:26:30,029 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-11 00:26:30,029 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:26:30,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:26:30,030 INFO L82 PathProgramCache]: Analyzing trace with hash -987336539, now seen corresponding path program 1 times [2021-10-11 00:26:30,030 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:26:30,030 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946379436] [2021-10-11 00:26:30,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:26:30,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:26:30,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:26:30,095 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946379436] [2021-10-11 00:26:30,095 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:26:30,095 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:26:30,095 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130080857] [2021-10-11 00:26:30,096 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 00:26:30,096 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:26:30,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 00:26:30,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:26:30,097 INFO L87 Difference]: Start difference. First operand 178 states and 238 transitions. Second operand 6 states. [2021-10-11 00:26:30,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:26:30,278 INFO L93 Difference]: Finished difference Result 912 states and 1223 transitions. [2021-10-11 00:26:30,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-11 00:26:30,278 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2021-10-11 00:26:30,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:26:30,283 INFO L225 Difference]: With dead ends: 912 [2021-10-11 00:26:30,283 INFO L226 Difference]: Without dead ends: 740 [2021-10-11 00:26:30,284 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-10-11 00:26:30,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2021-10-11 00:26:30,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 338. [2021-10-11 00:26:30,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2021-10-11 00:26:30,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 445 transitions. [2021-10-11 00:26:30,323 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 445 transitions. Word has length 34 [2021-10-11 00:26:30,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:26:30,324 INFO L481 AbstractCegarLoop]: Abstraction has 338 states and 445 transitions. [2021-10-11 00:26:30,324 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 00:26:30,324 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 445 transitions. [2021-10-11 00:26:30,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-11 00:26:30,325 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:26:30,325 INFO L422 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, 1, 1] [2021-10-11 00:26:30,325 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-11 00:26:30,325 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:26:30,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:26:30,326 INFO L82 PathProgramCache]: Analyzing trace with hash 787670823, now seen corresponding path program 1 times [2021-10-11 00:26:30,326 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:26:30,326 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663381125] [2021-10-11 00:26:30,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:26:30,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:26:30,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:26:30,389 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663381125] [2021-10-11 00:26:30,389 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:26:30,389 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:26:30,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401657150] [2021-10-11 00:26:30,390 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:26:30,390 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:26:30,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:26:30,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:26:30,391 INFO L87 Difference]: Start difference. First operand 338 states and 445 transitions. Second operand 5 states. [2021-10-11 00:26:30,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:26:30,615 INFO L93 Difference]: Finished difference Result 752 states and 993 transitions. [2021-10-11 00:26:30,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 00:26:30,617 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 34 [2021-10-11 00:26:30,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:26:30,621 INFO L225 Difference]: With dead ends: 752 [2021-10-11 00:26:30,621 INFO L226 Difference]: Without dead ends: 510 [2021-10-11 00:26:30,622 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-11 00:26:30,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2021-10-11 00:26:30,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 332. [2021-10-11 00:26:30,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 332 states. [2021-10-11 00:26:30,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 433 transitions. [2021-10-11 00:26:30,664 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 433 transitions. Word has length 34 [2021-10-11 00:26:30,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:26:30,664 INFO L481 AbstractCegarLoop]: Abstraction has 332 states and 433 transitions. [2021-10-11 00:26:30,665 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:26:30,665 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 433 transitions. [2021-10-11 00:26:30,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-11 00:26:30,666 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:26:30,667 INFO L422 BasicCegarLoop]: trace histogram [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] [2021-10-11 00:26:30,667 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-11 00:26:30,668 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:26:30,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:26:30,668 INFO L82 PathProgramCache]: Analyzing trace with hash -771750108, now seen corresponding path program 1 times [2021-10-11 00:26:30,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:26:30,669 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898424830] [2021-10-11 00:26:30,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:26:30,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:26:30,769 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-11 00:26:30,769 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898424830] [2021-10-11 00:26:30,769 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:26:30,769 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:26:30,770 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229159317] [2021-10-11 00:26:30,770 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:26:30,770 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:26:30,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:26:30,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:26:30,773 INFO L87 Difference]: Start difference. First operand 332 states and 433 transitions. Second operand 5 states. [2021-10-11 00:26:30,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:26:30,869 INFO L93 Difference]: Finished difference Result 753 states and 985 transitions. [2021-10-11 00:26:30,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 00:26:30,870 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 53 [2021-10-11 00:26:30,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:26:30,874 INFO L225 Difference]: With dead ends: 753 [2021-10-11 00:26:30,874 INFO L226 Difference]: Without dead ends: 427 [2021-10-11 00:26:30,875 INFO L677 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 [2021-10-11 00:26:30,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2021-10-11 00:26:30,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 332. [2021-10-11 00:26:30,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 332 states. [2021-10-11 00:26:30,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 427 transitions. [2021-10-11 00:26:30,920 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 427 transitions. Word has length 53 [2021-10-11 00:26:30,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:26:30,920 INFO L481 AbstractCegarLoop]: Abstraction has 332 states and 427 transitions. [2021-10-11 00:26:30,921 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:26:30,921 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 427 transitions. [2021-10-11 00:26:30,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-11 00:26:30,922 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:26:30,922 INFO L422 BasicCegarLoop]: trace histogram [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] [2021-10-11 00:26:30,922 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-11 00:26:30,923 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:26:30,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:26:30,923 INFO L82 PathProgramCache]: Analyzing trace with hash -844136666, now seen corresponding path program 1 times [2021-10-11 00:26:30,924 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:26:30,924 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55955230] [2021-10-11 00:26:30,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:26:30,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:26:30,996 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-11 00:26:31,000 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55955230] [2021-10-11 00:26:31,001 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:26:31,001 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 00:26:31,001 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891079117] [2021-10-11 00:26:31,002 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 00:26:31,002 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:26:31,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:26:31,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:26:31,003 INFO L87 Difference]: Start difference. First operand 332 states and 427 transitions. Second operand 4 states. [2021-10-11 00:26:31,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:26:31,067 INFO L93 Difference]: Finished difference Result 676 states and 879 transitions. [2021-10-11 00:26:31,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 00:26:31,067 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2021-10-11 00:26:31,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:26:31,070 INFO L225 Difference]: With dead ends: 676 [2021-10-11 00:26:31,071 INFO L226 Difference]: Without dead ends: 350 [2021-10-11 00:26:31,072 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:26:31,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2021-10-11 00:26:31,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 266. [2021-10-11 00:26:31,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2021-10-11 00:26:31,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 341 transitions. [2021-10-11 00:26:31,101 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 341 transitions. Word has length 53 [2021-10-11 00:26:31,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:26:31,102 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 341 transitions. [2021-10-11 00:26:31,102 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 00:26:31,102 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 341 transitions. [2021-10-11 00:26:31,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-11 00:26:31,103 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:26:31,103 INFO L422 BasicCegarLoop]: trace histogram [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] [2021-10-11 00:26:31,104 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-11 00:26:31,104 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:26:31,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:26:31,104 INFO L82 PathProgramCache]: Analyzing trace with hash -1409435414, now seen corresponding path program 1 times [2021-10-11 00:26:31,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:26:31,105 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879547834] [2021-10-11 00:26:31,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:26:31,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:26:31,198 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-11 00:26:31,198 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879547834] [2021-10-11 00:26:31,199 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:26:31,199 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:26:31,199 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272080947] [2021-10-11 00:26:31,200 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:26:31,200 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:26:31,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:26:31,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:26:31,201 INFO L87 Difference]: Start difference. First operand 266 states and 341 transitions. Second operand 5 states. [2021-10-11 00:26:31,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:26:31,322 INFO L93 Difference]: Finished difference Result 878 states and 1149 transitions. [2021-10-11 00:26:31,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 00:26:31,323 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 54 [2021-10-11 00:26:31,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:26:31,327 INFO L225 Difference]: With dead ends: 878 [2021-10-11 00:26:31,327 INFO L226 Difference]: Without dead ends: 666 [2021-10-11 00:26:31,328 INFO L677 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 [2021-10-11 00:26:31,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2021-10-11 00:26:31,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 272. [2021-10-11 00:26:31,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2021-10-11 00:26:31,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 347 transitions. [2021-10-11 00:26:31,366 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 347 transitions. Word has length 54 [2021-10-11 00:26:31,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:26:31,368 INFO L481 AbstractCegarLoop]: Abstraction has 272 states and 347 transitions. [2021-10-11 00:26:31,368 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:26:31,368 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 347 transitions. [2021-10-11 00:26:31,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-11 00:26:31,369 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:26:31,369 INFO L422 BasicCegarLoop]: trace histogram [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] [2021-10-11 00:26:31,370 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-11 00:26:31,370 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:26:31,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:26:31,371 INFO L82 PathProgramCache]: Analyzing trace with hash -1802462424, now seen corresponding path program 1 times [2021-10-11 00:26:31,374 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:26:31,375 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326630939] [2021-10-11 00:26:31,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:26:31,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:26:31,433 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-11 00:26:31,434 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326630939] [2021-10-11 00:26:31,435 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:26:31,435 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:26:31,435 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494472614] [2021-10-11 00:26:31,436 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:26:31,436 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:26:31,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:26:31,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:26:31,437 INFO L87 Difference]: Start difference. First operand 272 states and 347 transitions. Second operand 5 states. [2021-10-11 00:26:31,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:26:31,636 INFO L93 Difference]: Finished difference Result 708 states and 904 transitions. [2021-10-11 00:26:31,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-11 00:26:31,637 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 54 [2021-10-11 00:26:31,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:26:31,641 INFO L225 Difference]: With dead ends: 708 [2021-10-11 00:26:31,641 INFO L226 Difference]: Without dead ends: 706 [2021-10-11 00:26:31,643 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-11 00:26:31,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2021-10-11 00:26:31,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 272. [2021-10-11 00:26:31,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2021-10-11 00:26:31,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 345 transitions. [2021-10-11 00:26:31,703 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 345 transitions. Word has length 54 [2021-10-11 00:26:31,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:26:31,703 INFO L481 AbstractCegarLoop]: Abstraction has 272 states and 345 transitions. [2021-10-11 00:26:31,704 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:26:31,704 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 345 transitions. [2021-10-11 00:26:31,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-10-11 00:26:31,705 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:26:31,705 INFO L422 BasicCegarLoop]: trace histogram [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] [2021-10-11 00:26:31,705 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-11 00:26:31,705 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:26:31,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:26:31,706 INFO L82 PathProgramCache]: Analyzing trace with hash -1437514545, now seen corresponding path program 1 times [2021-10-11 00:26:31,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:26:31,706 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392517412] [2021-10-11 00:26:31,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:26:31,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:26:31,813 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:26:31,814 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392517412] [2021-10-11 00:26:31,814 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1336787377] [2021-10-11 00:26:31,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f97de893-70f3-49da-9770-79fa0e8791d0/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:26:31,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:26:31,999 INFO L263 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-11 00:26:32,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:26:32,172 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:26:32,172 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-11 00:26:32,173 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2021-10-11 00:26:32,175 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484847789] [2021-10-11 00:26:32,176 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 00:26:32,176 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:26:32,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 00:26:32,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:26:32,178 INFO L87 Difference]: Start difference. First operand 272 states and 345 transitions. Second operand 6 states. [2021-10-11 00:26:32,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:26:32,499 INFO L93 Difference]: Finished difference Result 855 states and 1102 transitions. [2021-10-11 00:26:32,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-11 00:26:32,500 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 55 [2021-10-11 00:26:32,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:26:32,504 INFO L225 Difference]: With dead ends: 855 [2021-10-11 00:26:32,504 INFO L226 Difference]: Without dead ends: 637 [2021-10-11 00:26:32,505 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2021-10-11 00:26:32,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2021-10-11 00:26:32,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 386. [2021-10-11 00:26:32,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 386 states. [2021-10-11 00:26:32,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 495 transitions. [2021-10-11 00:26:32,589 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 495 transitions. Word has length 55 [2021-10-11 00:26:32,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:26:32,589 INFO L481 AbstractCegarLoop]: Abstraction has 386 states and 495 transitions. [2021-10-11 00:26:32,589 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 00:26:32,589 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 495 transitions. [2021-10-11 00:26:32,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-10-11 00:26:32,590 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:26:32,591 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:26:32,805 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-10-11 00:26:32,805 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:26:32,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:26:32,805 INFO L82 PathProgramCache]: Analyzing trace with hash 1916895271, now seen corresponding path program 2 times [2021-10-11 00:26:32,806 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:26:32,806 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896641302] [2021-10-11 00:26:32,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:26:32,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:26:32,950 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-11 00:26:32,951 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896641302] [2021-10-11 00:26:32,951 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:26:32,951 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:26:32,951 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767271266] [2021-10-11 00:26:32,952 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:26:32,952 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:26:32,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:26:32,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:26:32,953 INFO L87 Difference]: Start difference. First operand 386 states and 495 transitions. Second operand 5 states. [2021-10-11 00:26:33,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:26:33,433 INFO L93 Difference]: Finished difference Result 1180 states and 1538 transitions. [2021-10-11 00:26:33,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 00:26:33,434 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 76 [2021-10-11 00:26:33,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:26:33,439 INFO L225 Difference]: With dead ends: 1180 [2021-10-11 00:26:33,439 INFO L226 Difference]: Without dead ends: 846 [2021-10-11 00:26:33,440 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-11 00:26:33,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 846 states. [2021-10-11 00:26:33,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 846 to 532. [2021-10-11 00:26:33,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 532 states. [2021-10-11 00:26:33,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 679 transitions. [2021-10-11 00:26:33,537 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 679 transitions. Word has length 76 [2021-10-11 00:26:33,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:26:33,538 INFO L481 AbstractCegarLoop]: Abstraction has 532 states and 679 transitions. [2021-10-11 00:26:33,538 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:26:33,538 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 679 transitions. [2021-10-11 00:26:33,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-10-11 00:26:33,546 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:26:33,546 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-10-11 00:26:33,546 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-11 00:26:33,546 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:26:33,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:26:33,547 INFO L82 PathProgramCache]: Analyzing trace with hash -2103312411, now seen corresponding path program 1 times [2021-10-11 00:26:33,547 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:26:33,547 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178883079] [2021-10-11 00:26:33,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:26:33,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:26:33,648 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 34 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-11 00:26:33,648 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178883079] [2021-10-11 00:26:33,648 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1195547790] [2021-10-11 00:26:33,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f97de893-70f3-49da-9770-79fa0e8791d0/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:26:33,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:26:33,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 00:26:33,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:26:33,993 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-10-11 00:26:33,993 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-11 00:26:33,993 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2021-10-11 00:26:33,994 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201646555] [2021-10-11 00:26:33,995 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:26:33,995 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:26:33,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:26:33,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-10-11 00:26:33,996 INFO L87 Difference]: Start difference. First operand 532 states and 679 transitions. Second operand 5 states. [2021-10-11 00:26:34,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:26:34,120 INFO L93 Difference]: Finished difference Result 934 states and 1186 transitions. [2021-10-11 00:26:34,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 00:26:34,121 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 76 [2021-10-11 00:26:34,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:26:34,121 INFO L225 Difference]: With dead ends: 934 [2021-10-11 00:26:34,121 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 00:26:34,128 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-10-11 00:26:34,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 00:26:34,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 00:26:34,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 00:26:34,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 00:26:34,129 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 76 [2021-10-11 00:26:34,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:26:34,129 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:26:34,129 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:26:34,129 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 00:26:34,129 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 00:26:34,357 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-10-11 00:26:34,359 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 00:26:35,039 WARN L197 SmtUtils]: Spent 667.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 204 [2021-10-11 00:26:36,015 WARN L197 SmtUtils]: Spent 969.00 ms on a formula simplification. DAG size of input: 298 DAG size of output: 224 [2021-10-11 00:26:36,383 WARN L197 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 148 [2021-10-11 00:26:37,089 WARN L197 SmtUtils]: Spent 699.00 ms on a formula simplification. DAG size of input: 265 DAG size of output: 220 [2021-10-11 00:26:37,953 WARN L197 SmtUtils]: Spent 861.00 ms on a formula simplification. DAG size of input: 294 DAG size of output: 219 [2021-10-11 00:26:38,188 WARN L197 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 139 [2021-10-11 00:26:38,547 WARN L197 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 162 [2021-10-11 00:26:38,678 WARN L197 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 120 [2021-10-11 00:26:40,179 WARN L197 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 203 DAG size of output: 32 [2021-10-11 00:26:41,532 WARN L197 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 215 DAG size of output: 20 [2021-10-11 00:26:42,268 WARN L197 SmtUtils]: Spent 632.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 35 [2021-10-11 00:26:43,474 WARN L197 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 217 DAG size of output: 22 [2021-10-11 00:26:44,683 WARN L197 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 209 DAG size of output: 28 [2021-10-11 00:26:44,824 WARN L197 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 15 [2021-10-11 00:26:45,410 WARN L197 SmtUtils]: Spent 513.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 30 [2021-10-11 00:26:46,090 WARN L197 SmtUtils]: Spent 581.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 43 [2021-10-11 00:26:46,435 WARN L197 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 20 [2021-10-11 00:26:46,630 WARN L197 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 21 [2021-10-11 00:26:46,664 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 971) no Hoare annotation was computed. [2021-10-11 00:26:46,664 INFO L258 CegarLoopResult]: At program point L564(lines 560 566) the Hoare annotation is: (and (= ~waterLevel~0 1) (= 1 ~systemActive~0) (= ~methaneLevelCritical~0 0) (= ~pumpRunning~0 0)) [2021-10-11 00:26:46,664 INFO L258 CegarLoopResult]: At program point L135(lines 135 141) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (not (= ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~1 0)) (= ULTIMATE.start_activatePump_~tmp~3 0) (not (= |ULTIMATE.start_isHighWaterLevel_#res| 0)) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) (= ULTIMATE.start_isHighWaterLevel_~tmp~4 0) .cse0 (<= 2 ~waterLevel~0) .cse1 (not (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 0))) (and .cse0 (= ~pumpRunning~0 0) .cse1 (<= 1 ~waterLevel~0)))) [2021-10-11 00:26:46,665 INFO L258 CegarLoopResult]: At program point L102(lines 55 103) the Hoare annotation is: false [2021-10-11 00:26:46,665 INFO L258 CegarLoopResult]: At program point L135-1(lines 135 141) the Hoare annotation is: false [2021-10-11 00:26:46,665 INFO L258 CegarLoopResult]: At program point L135-2(lines 135 141) the Hoare annotation is: false [2021-10-11 00:26:46,665 INFO L258 CegarLoopResult]: At program point L500(lines 495 503) the Hoare annotation is: (and (= ~waterLevel~0 1) (= 1 ~systemActive~0) (= ~methaneLevelCritical~0 0) (= ~pumpRunning~0 0)) [2021-10-11 00:26:46,665 INFO L262 CegarLoopResult]: For program point L370(lines 370 374) no Hoare annotation was computed. [2021-10-11 00:26:46,666 INFO L262 CegarLoopResult]: For program point L370-3(lines 370 374) no Hoare annotation was computed. [2021-10-11 00:26:46,666 INFO L262 CegarLoopResult]: For program point L370-6(lines 370 374) no Hoare annotation was computed. [2021-10-11 00:26:46,666 INFO L262 CegarLoopResult]: For program point L306(lines 306 310) no Hoare annotation was computed. [2021-10-11 00:26:46,666 INFO L262 CegarLoopResult]: For program point L306-2(lines 306 310) no Hoare annotation was computed. [2021-10-11 00:26:46,666 INFO L262 CegarLoopResult]: For program point L306-3(lines 306 310) no Hoare annotation was computed. [2021-10-11 00:26:46,666 INFO L262 CegarLoopResult]: For program point L306-5(lines 306 310) no Hoare annotation was computed. [2021-10-11 00:26:46,666 INFO L262 CegarLoopResult]: For program point L306-6(lines 306 310) no Hoare annotation was computed. [2021-10-11 00:26:46,667 INFO L262 CegarLoopResult]: For program point L306-8(lines 306 310) no Hoare annotation was computed. [2021-10-11 00:26:46,667 INFO L262 CegarLoopResult]: For program point L306-9(lines 306 310) no Hoare annotation was computed. [2021-10-11 00:26:46,667 INFO L262 CegarLoopResult]: For program point L306-11(lines 306 310) no Hoare annotation was computed. [2021-10-11 00:26:46,667 INFO L262 CegarLoopResult]: For program point L306-12(lines 306 310) no Hoare annotation was computed. [2021-10-11 00:26:46,667 INFO L262 CegarLoopResult]: For program point L306-14(lines 306 310) no Hoare annotation was computed. [2021-10-11 00:26:46,667 INFO L262 CegarLoopResult]: For program point L306-15(lines 306 310) no Hoare annotation was computed. [2021-10-11 00:26:46,668 INFO L262 CegarLoopResult]: For program point L306-17(lines 306 310) no Hoare annotation was computed. [2021-10-11 00:26:46,668 INFO L258 CegarLoopResult]: At program point L439(lines 434 442) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (not (= ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~1 0)) (= ULTIMATE.start_activatePump_~tmp~3 0) (not (= |ULTIMATE.start_isHighWaterLevel_#res| 0)) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) (= ULTIMATE.start_isHighWaterLevel_~tmp~4 0) .cse0 (<= 2 |ULTIMATE.start_getWaterLevel_#res|) (<= 2 ~waterLevel~0) .cse1 (not (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 0))) (and .cse0 (= ~pumpRunning~0 0) (<= 1 ~waterLevel~0) .cse1 (<= 1 |ULTIMATE.start_getWaterLevel_#res|)))) [2021-10-11 00:26:46,668 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 971) no Hoare annotation was computed. [2021-10-11 00:26:46,668 INFO L258 CegarLoopResult]: At program point L439-1(lines 434 442) the Hoare annotation is: false [2021-10-11 00:26:46,668 INFO L258 CegarLoopResult]: At program point L439-2(lines 434 442) the Hoare annotation is: false [2021-10-11 00:26:46,669 INFO L262 CegarLoopResult]: For program point L76(lines 76 82) no Hoare annotation was computed. [2021-10-11 00:26:46,669 INFO L258 CegarLoopResult]: At program point L76-1(lines 76 82) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 0)) (.cse0 (= 1 ~systemActive~0)) (.cse1 (<= 2 ~waterLevel~0)) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 .cse1 .cse2 .cse3) (and (= ~waterLevel~0 1) .cse0 .cse2 .cse3) (and (= ULTIMATE.start_activatePump_~tmp~3 0) .cse0 .cse1 .cse3))) [2021-10-11 00:26:46,669 INFO L258 CegarLoopResult]: At program point L407(lines 402 410) the Hoare annotation is: false [2021-10-11 00:26:46,669 INFO L258 CegarLoopResult]: At program point L407-1(lines 402 410) the Hoare annotation is: (and (not (= ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~1 0)) (not (= |ULTIMATE.start_isHighWaterLevel_#res| 0)) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) (= ULTIMATE.start_isHighWaterLevel_~tmp~4 0) (= 1 ~systemActive~0) (<= 2 ~waterLevel~0) (= ~pumpRunning~0 0) (= ULTIMATE.start_test_~splverifierCounter~0 0) (not (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 0))) [2021-10-11 00:26:46,669 INFO L258 CegarLoopResult]: At program point L407-2(lines 402 410) the Hoare annotation is: false [2021-10-11 00:26:46,670 INFO L258 CegarLoopResult]: At program point L407-3(lines 402 410) the Hoare annotation is: false [2021-10-11 00:26:46,670 INFO L258 CegarLoopResult]: At program point L407-4(lines 402 410) the Hoare annotation is: false [2021-10-11 00:26:46,670 INFO L258 CegarLoopResult]: At program point L407-5(lines 402 410) the Hoare annotation is: false [2021-10-11 00:26:46,670 INFO L262 CegarLoopResult]: For program point L971(line 971) no Hoare annotation was computed. [2021-10-11 00:26:46,670 INFO L262 CegarLoopResult]: For program point L971-1(line 971) no Hoare annotation was computed. [2021-10-11 00:26:46,670 INFO L262 CegarLoopResult]: For program point L971-2(line 971) no Hoare annotation was computed. [2021-10-11 00:26:46,670 INFO L258 CegarLoopResult]: At program point L312(lines 297 315) the Hoare annotation is: false [2021-10-11 00:26:46,671 INFO L258 CegarLoopResult]: At program point L312-1(lines 297 315) the Hoare annotation is: (let ((.cse4 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 0)) (.cse1 (= 1 ~systemActive~0)) (.cse0 (= |ULTIMATE.start_isHighWaterLevel_#res| 0)) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (not .cse0) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) (= ULTIMATE.start_isHighWaterLevel_~tmp~4 0) .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3 (not .cse4)) (and .cse4 .cse1 (= ULTIMATE.start_isHighWaterLevel_~tmp~4 1) .cse0 .cse2 (<= 1 ~waterLevel~0) .cse3 (= |ULTIMATE.start_isHighWaterSensorDry_#res| 1)))) [2021-10-11 00:26:46,671 INFO L258 CegarLoopResult]: At program point L312-2(lines 297 315) the Hoare annotation is: false [2021-10-11 00:26:46,671 INFO L258 CegarLoopResult]: At program point L312-3(lines 297 315) the Hoare annotation is: false [2021-10-11 00:26:46,671 INFO L258 CegarLoopResult]: At program point L312-4(lines 297 315) the Hoare annotation is: false [2021-10-11 00:26:46,671 INFO L258 CegarLoopResult]: At program point L312-5(lines 297 315) the Hoare annotation is: false [2021-10-11 00:26:46,672 INFO L262 CegarLoopResult]: For program point L346(lines 346 359) no Hoare annotation was computed. [2021-10-11 00:26:46,672 INFO L258 CegarLoopResult]: At program point L346-1(lines 1 974) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (= 1 ~systemActive~0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 (<= 1 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~6) .cse1 (<= 1 ~waterLevel~0) .cse2 (<= 1 |ULTIMATE.start_getWaterLevel_#res|)) (and (= ~waterLevel~0 1) (= ~methaneLevelCritical~0 0) .cse0 .cse1 .cse2) (and (<= 2 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~6) (not (= ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~1 0)) (= ULTIMATE.start_activatePump_~tmp~3 0) (not (= |ULTIMATE.start_isHighWaterLevel_#res| 0)) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) (= ULTIMATE.start_isHighWaterLevel_~tmp~4 0) .cse0 (<= 2 |ULTIMATE.start_getWaterLevel_#res|) (<= 2 ~waterLevel~0) .cse2 (not (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 0))))) [2021-10-11 00:26:46,672 INFO L262 CegarLoopResult]: For program point L346-2(lines 346 359) no Hoare annotation was computed. [2021-10-11 00:26:46,672 INFO L258 CegarLoopResult]: At program point L346-3(lines 1 974) the Hoare annotation is: false [2021-10-11 00:26:46,672 INFO L262 CegarLoopResult]: For program point L346-4(lines 346 359) no Hoare annotation was computed. [2021-10-11 00:26:46,672 INFO L258 CegarLoopResult]: At program point L346-5(lines 1 974) the Hoare annotation is: false [2021-10-11 00:26:46,673 INFO L258 CegarLoopResult]: At program point L248(lines 241 251) the Hoare annotation is: false [2021-10-11 00:26:46,673 INFO L258 CegarLoopResult]: At program point L248-1(lines 241 251) the Hoare annotation is: (and (not (= ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~1 0)) (not (= |ULTIMATE.start_isHighWaterLevel_#res| 0)) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) (= ULTIMATE.start_isHighWaterLevel_~tmp~4 0) (= 1 ~systemActive~0) (<= 2 ~waterLevel~0) (= ~pumpRunning~0 0) (= ULTIMATE.start_test_~splverifierCounter~0 0) (not (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 0))) [2021-10-11 00:26:46,673 INFO L258 CegarLoopResult]: At program point L248-2(lines 241 251) the Hoare annotation is: false [2021-10-11 00:26:46,673 INFO L258 CegarLoopResult]: At program point L248-3(lines 241 251) the Hoare annotation is: false [2021-10-11 00:26:46,673 INFO L258 CegarLoopResult]: At program point L248-4(lines 241 251) the Hoare annotation is: false [2021-10-11 00:26:46,673 INFO L258 CegarLoopResult]: At program point L248-5(lines 241 251) the Hoare annotation is: false [2021-10-11 00:26:46,674 INFO L262 CegarLoopResult]: For program point L447(lines 447 453) no Hoare annotation was computed. [2021-10-11 00:26:46,674 INFO L262 CegarLoopResult]: For program point L447-1(lines 447 453) no Hoare annotation was computed. [2021-10-11 00:26:46,674 INFO L262 CegarLoopResult]: For program point L447-2(lines 447 453) no Hoare annotation was computed. [2021-10-11 00:26:46,674 INFO L262 CegarLoopResult]: For program point L447-3(lines 447 453) no Hoare annotation was computed. [2021-10-11 00:26:46,674 INFO L262 CegarLoopResult]: For program point L447-4(lines 447 453) no Hoare annotation was computed. [2021-10-11 00:26:46,674 INFO L262 CegarLoopResult]: For program point L447-5(lines 447 453) no Hoare annotation was computed. [2021-10-11 00:26:46,674 INFO L262 CegarLoopResult]: For program point L382(lines 382 386) no Hoare annotation was computed. [2021-10-11 00:26:46,675 INFO L262 CegarLoopResult]: For program point L350(lines 350 356) no Hoare annotation was computed. [2021-10-11 00:26:46,675 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 00:26:46,675 INFO L262 CegarLoopResult]: For program point L350-2(lines 350 356) no Hoare annotation was computed. [2021-10-11 00:26:46,675 INFO L262 CegarLoopResult]: For program point L350-4(lines 350 356) no Hoare annotation was computed. [2021-10-11 00:26:46,675 INFO L262 CegarLoopResult]: For program point L86(lines 86 97) no Hoare annotation was computed. [2021-10-11 00:26:46,675 INFO L258 CegarLoopResult]: At program point L516-2(lines 516 530) the Hoare annotation is: false [2021-10-11 00:26:46,675 INFO L262 CegarLoopResult]: For program point L186(lines 186 203) no Hoare annotation was computed. [2021-10-11 00:26:46,676 INFO L262 CegarLoopResult]: For program point L186-1(lines 186 203) no Hoare annotation was computed. [2021-10-11 00:26:46,676 INFO L262 CegarLoopResult]: For program point L186-2(lines 186 203) no Hoare annotation was computed. [2021-10-11 00:26:46,676 INFO L262 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2021-10-11 00:26:46,676 INFO L258 CegarLoopResult]: At program point L452(lines 443 456) the Hoare annotation is: false [2021-10-11 00:26:46,676 INFO L258 CegarLoopResult]: At program point L452-1(lines 443 456) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 1)) (and (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2))) [2021-10-11 00:26:46,676 INFO L258 CegarLoopResult]: At program point L452-2(lines 443 456) the Hoare annotation is: false [2021-10-11 00:26:46,677 INFO L258 CegarLoopResult]: At program point L452-3(lines 443 456) the Hoare annotation is: false [2021-10-11 00:26:46,677 INFO L258 CegarLoopResult]: At program point L452-4(lines 443 456) the Hoare annotation is: false [2021-10-11 00:26:46,677 INFO L258 CegarLoopResult]: At program point L452-5(lines 443 456) the Hoare annotation is: false [2021-10-11 00:26:46,677 INFO L262 CegarLoopResult]: For program point L57(lines 56 101) no Hoare annotation was computed. [2021-10-11 00:26:46,677 INFO L262 CegarLoopResult]: For program point L520(lines 520 524) no Hoare annotation was computed. [2021-10-11 00:26:46,677 INFO L262 CegarLoopResult]: For program point L520-1(lines 128 134) no Hoare annotation was computed. [2021-10-11 00:26:46,677 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 00:26:46,678 INFO L262 CegarLoopResult]: For program point L223(lines 223 229) no Hoare annotation was computed. [2021-10-11 00:26:46,678 INFO L262 CegarLoopResult]: For program point L190(lines 190 198) no Hoare annotation was computed. [2021-10-11 00:26:46,678 INFO L262 CegarLoopResult]: For program point L223-2(lines 223 229) no Hoare annotation was computed. [2021-10-11 00:26:46,678 INFO L262 CegarLoopResult]: For program point L190-1(lines 190 198) no Hoare annotation was computed. [2021-10-11 00:26:46,678 INFO L262 CegarLoopResult]: For program point L190-2(lines 190 198) no Hoare annotation was computed. [2021-10-11 00:26:46,678 INFO L262 CegarLoopResult]: For program point L223-4(lines 223 229) no Hoare annotation was computed. [2021-10-11 00:26:46,679 INFO L262 CegarLoopResult]: For program point L58(lines 58 62) no Hoare annotation was computed. [2021-10-11 00:26:46,679 INFO L262 CegarLoopResult]: For program point L223-6(lines 223 229) no Hoare annotation was computed. [2021-10-11 00:26:46,679 INFO L262 CegarLoopResult]: For program point L223-8(lines 223 229) no Hoare annotation was computed. [2021-10-11 00:26:46,679 INFO L262 CegarLoopResult]: For program point L223-10(lines 223 229) no Hoare annotation was computed. [2021-10-11 00:26:46,679 INFO L262 CegarLoopResult]: For program point L587(lines 587 594) no Hoare annotation was computed. [2021-10-11 00:26:46,679 INFO L265 CegarLoopResult]: At program point L587-1(lines 587 594) the Hoare annotation is: true [2021-10-11 00:26:46,679 INFO L258 CegarLoopResult]: At program point L257(lines 252 260) the Hoare annotation is: false [2021-10-11 00:26:46,680 INFO L258 CegarLoopResult]: At program point L257-1(lines 252 260) the Hoare annotation is: false [2021-10-11 00:26:46,680 INFO L258 CegarLoopResult]: At program point L257-2(lines 252 260) the Hoare annotation is: false [2021-10-11 00:26:46,680 INFO L262 CegarLoopResult]: For program point L92(lines 92 96) no Hoare annotation was computed. [2021-10-11 00:26:46,680 INFO L262 CegarLoopResult]: For program point L92-2(lines 128 134) no Hoare annotation was computed. [2021-10-11 00:26:46,680 INFO L262 CegarLoopResult]: For program point L325(lines 325 329) no Hoare annotation was computed. [2021-10-11 00:26:46,680 INFO L262 CegarLoopResult]: For program point L325-2(lines 325 329) no Hoare annotation was computed. [2021-10-11 00:26:46,680 INFO L262 CegarLoopResult]: For program point L325-3(lines 325 329) no Hoare annotation was computed. [2021-10-11 00:26:46,681 INFO L262 CegarLoopResult]: For program point L160(lines 160 177) no Hoare annotation was computed. [2021-10-11 00:26:46,681 INFO L262 CegarLoopResult]: For program point L325-5(lines 325 329) no Hoare annotation was computed. [2021-10-11 00:26:46,681 INFO L262 CegarLoopResult]: For program point L160-1(lines 160 177) no Hoare annotation was computed. [2021-10-11 00:26:46,681 INFO L262 CegarLoopResult]: For program point L325-6(lines 325 329) no Hoare annotation was computed. [2021-10-11 00:26:46,681 INFO L262 CegarLoopResult]: For program point L160-2(lines 160 177) no Hoare annotation was computed. [2021-10-11 00:26:46,681 INFO L262 CegarLoopResult]: For program point L160-3(lines 160 177) no Hoare annotation was computed. [2021-10-11 00:26:46,681 INFO L262 CegarLoopResult]: For program point L325-8(lines 325 329) no Hoare annotation was computed. [2021-10-11 00:26:46,682 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-11 00:26:46,682 INFO L262 CegarLoopResult]: For program point L160-4(lines 160 177) no Hoare annotation was computed. [2021-10-11 00:26:46,682 INFO L262 CegarLoopResult]: For program point L160-5(lines 160 177) no Hoare annotation was computed. [2021-10-11 00:26:46,682 INFO L258 CegarLoopResult]: At program point L128(lines 127 146) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse2 (= ~pumpRunning~0 0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= ULTIMATE.start_activatePump_~tmp~3 0) .cse0 .cse1 (<= 1 ~waterLevel~0)) (and .cse0 (<= 2 ~waterLevel~0) .cse2 .cse1) (and (= ~waterLevel~0 1) .cse0 .cse2 .cse1))) [2021-10-11 00:26:46,682 INFO L262 CegarLoopResult]: For program point L128-1(lines 128 134) no Hoare annotation was computed. [2021-10-11 00:26:46,683 INFO L258 CegarLoopResult]: At program point L128-2(lines 127 146) the Hoare annotation is: false [2021-10-11 00:26:46,683 INFO L258 CegarLoopResult]: At program point L128-3(lines 127 146) the Hoare annotation is: false [2021-10-11 00:26:46,683 INFO L258 CegarLoopResult]: At program point L492(lines 1 974) the Hoare annotation is: (and (= ~waterLevel~0 1) (= 1 ~systemActive~0) (= ~methaneLevelCritical~0 0) (= ~pumpRunning~0 0)) [2021-10-11 00:26:46,683 INFO L262 CegarLoopResult]: For program point L394(lines 394 398) no Hoare annotation was computed. [2021-10-11 00:26:46,683 INFO L262 CegarLoopResult]: For program point L164(lines 164 172) no Hoare annotation was computed. [2021-10-11 00:26:46,684 INFO L262 CegarLoopResult]: For program point L164-1(lines 164 172) no Hoare annotation was computed. [2021-10-11 00:26:46,684 INFO L262 CegarLoopResult]: For program point L164-2(lines 164 172) no Hoare annotation was computed. [2021-10-11 00:26:46,684 INFO L262 CegarLoopResult]: For program point L164-3(lines 164 172) no Hoare annotation was computed. [2021-10-11 00:26:46,684 INFO L262 CegarLoopResult]: For program point L164-4(lines 164 172) no Hoare annotation was computed. [2021-10-11 00:26:46,684 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-11 00:26:46,684 INFO L262 CegarLoopResult]: For program point L164-5(lines 164 172) no Hoare annotation was computed. [2021-10-11 00:26:46,684 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 971) no Hoare annotation was computed. [2021-10-11 00:26:46,685 INFO L258 CegarLoopResult]: At program point L462(lines 457 465) the Hoare annotation is: (and (= ULTIMATE.start_activatePump_~tmp~3 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) (= ULTIMATE.start_test_~splverifierCounter~0 0) (<= 1 ~waterLevel~0)) [2021-10-11 00:26:46,685 INFO L258 CegarLoopResult]: At program point L462-1(lines 457 465) the Hoare annotation is: false [2021-10-11 00:26:46,685 INFO L258 CegarLoopResult]: At program point L462-2(lines 457 465) the Hoare annotation is: false [2021-10-11 00:26:46,685 INFO L262 CegarLoopResult]: For program point L66(lines 66 72) no Hoare annotation was computed. [2021-10-11 00:26:46,685 INFO L258 CegarLoopResult]: At program point L66-1(lines 66 72) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 0)) (.cse0 (= 1 ~systemActive~0)) (.cse1 (<= 2 ~waterLevel~0)) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 (<= 1 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~6) .cse2 .cse3 (<= 1 ~waterLevel~0) (<= 1 |ULTIMATE.start_getWaterLevel_#res|)) (and (= ~waterLevel~0 1) (= ~methaneLevelCritical~0 0) .cse0 .cse2 .cse3) (and (= ULTIMATE.start_activatePump_~tmp~3 0) .cse0 .cse1 .cse3))) [2021-10-11 00:26:46,686 INFO L258 CegarLoopResult]: At program point L331(lines 316 334) the Hoare annotation is: (and (= ULTIMATE.start_activatePump_~tmp~3 0) (= ULTIMATE.start_isLowWaterLevel_~tmp~5 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) (<= 1 ULTIMATE.start_isLowWaterLevel_~tmp___0~2) (= ULTIMATE.start_test_~splverifierCounter~0 0) (<= 1 ~waterLevel~0) (<= 1 |ULTIMATE.start_isLowWaterLevel_#res|)) [2021-10-11 00:26:46,686 INFO L258 CegarLoopResult]: At program point L331-1(lines 316 334) the Hoare annotation is: false [2021-10-11 00:26:46,686 INFO L258 CegarLoopResult]: At program point L331-2(lines 316 334) the Hoare annotation is: false [2021-10-11 00:26:46,686 INFO L265 CegarLoopResult]: At program point L596(lines 577 599) the Hoare annotation is: true [2021-10-11 00:26:46,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:26:46 BoogieIcfgContainer [2021-10-11 00:26:46,715 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:26:46,715 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:26:46,715 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:26:46,716 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:26:46,716 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:26:27" (3/4) ... [2021-10-11 00:26:46,719 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 00:26:46,740 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2021-10-11 00:26:46,741 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2021-10-11 00:26:46,743 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-10-11 00:26:46,744 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-11 00:26:46,746 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-11 00:26:46,747 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 00:26:46,749 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 00:26:46,775 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((1 == systemActive && 1 <= tmp) && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) && 1 <= \result) || ((((waterLevel == 1 && methaneLevelCritical == 0) && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0)) || ((((((((((2 <= tmp && !(tmp == 0)) && tmp == 0) && !(\result == 0)) && \result == 0) && tmp == 0) && 1 == systemActive) && 2 <= \result) && 2 <= waterLevel) && splverifierCounter == 0) && !(tmp___0 == 0)) [2021-10-11 00:26:46,775 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((((1 == systemActive && 1 <= tmp) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && 1 <= \result)) || ((((waterLevel == 1 && methaneLevelCritical == 0) && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0)) || (((tmp == 0 && 1 == systemActive) && 2 <= waterLevel) && splverifierCounter == 0) [2021-10-11 00:26:46,776 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((!(tmp == 0) && tmp == 0) && !(\result == 0)) && \result == 0) && tmp == 0) && 1 == systemActive) && 2 <= waterLevel) && splverifierCounter == 0) && !(tmp___0 == 0)) || (((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) [2021-10-11 00:26:46,778 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((!(tmp == 0) && tmp == 0) && !(\result == 0)) && \result == 0) && tmp == 0) && 1 == systemActive) && 2 <= \result) && 2 <= waterLevel) && splverifierCounter == 0) && !(tmp___0 == 0)) || ((((1 == systemActive && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) && 1 <= \result) [2021-10-11 00:26:46,778 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((tmp == 0 && 1 == systemActive) && \result == 0) && splverifierCounter == 0) && 1 <= waterLevel [2021-10-11 00:26:46,779 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) || ((((\result == 0 && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) [2021-10-11 00:26:46,780 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((tmp == 0 && tmp == 0) && 1 == systemActive) && \result == 0) && 1 <= tmp___0) && splverifierCounter == 0) && 1 <= waterLevel) && 1 <= \result [2021-10-11 00:26:46,780 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\result == 0) && \result == 0) && tmp == 0) && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && !(tmp___0 == 0)) || (((((((tmp___0 == 0 && 1 == systemActive) && tmp == 1) && \result == 0) && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) && \result == 1) [2021-10-11 00:26:46,782 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(tmp == 0) && !(\result == 0)) && \result == 0) && tmp == 0) && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && !(tmp___0 == 0) [2021-10-11 00:26:46,782 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(tmp == 0) && !(\result == 0)) && \result == 0) && tmp == 0) && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && !(tmp___0 == 0) [2021-10-11 00:26:46,876 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f97de893-70f3-49da-9770-79fa0e8791d0/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:26:46,876 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:26:46,878 INFO L168 Benchmark]: Toolchain (without parser) took 21494.19 ms. Allocated memory was 111.1 MB in the beginning and 411.0 MB in the end (delta: 299.9 MB). Free memory was 80.4 MB in the beginning and 183.2 MB in the end (delta: -102.8 MB). Peak memory consumption was 196.8 MB. Max. memory is 16.1 GB. [2021-10-11 00:26:46,878 INFO L168 Benchmark]: CDTParser took 0.64 ms. Allocated memory is still 111.1 MB. Free memory is still 68.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:26:46,879 INFO L168 Benchmark]: CACSL2BoogieTranslator took 839.70 ms. Allocated memory is still 111.1 MB. Free memory was 80.2 MB in the beginning and 74.4 MB in the end (delta: 5.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:26:46,879 INFO L168 Benchmark]: Boogie Procedure Inliner took 131.00 ms. Allocated memory is still 111.1 MB. Free memory was 74.4 MB in the beginning and 70.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 00:26:46,879 INFO L168 Benchmark]: Boogie Preprocessor took 90.93 ms. Allocated memory is still 111.1 MB. Free memory was 70.2 MB in the beginning and 67.4 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:26:46,880 INFO L168 Benchmark]: RCFGBuilder took 1435.06 ms. Allocated memory was 111.1 MB in the beginning and 138.4 MB in the end (delta: 27.3 MB). Free memory was 67.4 MB in the beginning and 99.5 MB in the end (delta: -32.2 MB). Peak memory consumption was 29.7 MB. Max. memory is 16.1 GB. [2021-10-11 00:26:46,881 INFO L168 Benchmark]: TraceAbstraction took 18816.43 ms. Allocated memory was 138.4 MB in the beginning and 411.0 MB in the end (delta: 272.6 MB). Free memory was 98.5 MB in the beginning and 194.8 MB in the end (delta: -96.3 MB). Peak memory consumption was 237.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:26:46,881 INFO L168 Benchmark]: Witness Printer took 161.57 ms. Allocated memory is still 411.0 MB. Free memory was 194.8 MB in the beginning and 183.2 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:26:46,883 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.64 ms. Allocated memory is still 111.1 MB. Free memory is still 68.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 839.70 ms. Allocated memory is still 111.1 MB. Free memory was 80.2 MB in the beginning and 74.4 MB in the end (delta: 5.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 131.00 ms. Allocated memory is still 111.1 MB. Free memory was 74.4 MB in the beginning and 70.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 90.93 ms. Allocated memory is still 111.1 MB. Free memory was 70.2 MB in the beginning and 67.4 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1435.06 ms. Allocated memory was 111.1 MB in the beginning and 138.4 MB in the end (delta: 27.3 MB). Free memory was 67.4 MB in the beginning and 99.5 MB in the end (delta: -32.2 MB). Peak memory consumption was 29.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 18816.43 ms. Allocated memory was 138.4 MB in the beginning and 411.0 MB in the end (delta: 272.6 MB). Free memory was 98.5 MB in the beginning and 194.8 MB in the end (delta: -96.3 MB). Peak memory consumption was 237.4 MB. Max. memory is 16.1 GB. * Witness Printer took 161.57 ms. Allocated memory is still 411.0 MB. Free memory was 194.8 MB in the beginning and 183.2 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 971]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 971]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 971]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 135]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 135]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 135]: Loop Invariant Derived loop invariant: ((((((((!(tmp == 0) && tmp == 0) && !(\result == 0)) && \result == 0) && tmp == 0) && 1 == systemActive) && 2 <= waterLevel) && splverifierCounter == 0) && !(tmp___0 == 0)) || (((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 577]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 241]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 76]: Loop Invariant Derived loop invariant: ((((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0)) || (((tmp == 0 && 1 == systemActive) && 2 <= waterLevel) && splverifierCounter == 0) - InvariantResult [Line: 241]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 241]: Loop Invariant Derived loop invariant: (((((((!(tmp == 0) && !(\result == 0)) && \result == 0) && tmp == 0) && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && !(tmp___0 == 0) - InvariantResult [Line: 241]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 516]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 434]: Loop Invariant Derived loop invariant: (((((((((!(tmp == 0) && tmp == 0) && !(\result == 0)) && \result == 0) && tmp == 0) && 1 == systemActive) && 2 <= \result) && 2 <= waterLevel) && splverifierCounter == 0) && !(tmp___0 == 0)) || ((((1 == systemActive && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) && 1 <= \result) - InvariantResult [Line: 434]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 434]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 560]: Loop Invariant Derived loop invariant: ((waterLevel == 1 && 1 == systemActive) && methaneLevelCritical == 0) && pumpRunning == 0 - InvariantResult [Line: 402]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 297]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: ((((tmp == 0 && 1 == systemActive) && splverifierCounter == 0) && 1 <= waterLevel) || (((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0)) || (((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 297]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 402]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 66]: Loop Invariant Derived loop invariant: (((((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((((1 == systemActive && 1 <= tmp) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && 1 <= \result)) || ((((waterLevel == 1 && methaneLevelCritical == 0) && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0)) || (((tmp == 0 && 1 == systemActive) && 2 <= waterLevel) && splverifierCounter == 0) - InvariantResult [Line: 402]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 457]: Loop Invariant Derived loop invariant: (((tmp == 0 && 1 == systemActive) && \result == 0) && splverifierCounter == 0) && 1 <= waterLevel - InvariantResult [Line: 297]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 457]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 297]: Loop Invariant Derived loop invariant: (((((((!(\result == 0) && \result == 0) && tmp == 0) && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && !(tmp___0 == 0)) || (((((((tmp___0 == 0 && 1 == systemActive) && tmp == 1) && \result == 0) && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) && \result == 1) - InvariantResult [Line: 402]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 457]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 297]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 402]: Loop Invariant Derived loop invariant: (((((((!(tmp == 0) && !(\result == 0)) && \result == 0) && tmp == 0) && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && !(tmp___0 == 0) - InvariantResult [Line: 297]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 402]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 252]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 316]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 252]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 252]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 443]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((((((1 == systemActive && 1 <= tmp) && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) && 1 <= \result) || ((((waterLevel == 1 && methaneLevelCritical == 0) && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0)) || ((((((((((2 <= tmp && !(tmp == 0)) && tmp == 0) && !(\result == 0)) && \result == 0) && tmp == 0) && 1 == systemActive) && 2 <= \result) && 2 <= waterLevel) && splverifierCounter == 0) && !(tmp___0 == 0)) - InvariantResult [Line: 443]: Loop Invariant Derived loop invariant: ((((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) || ((((\result == 0 && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 443]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((waterLevel == 1 && 1 == systemActive) && methaneLevelCritical == 0) && pumpRunning == 0 - InvariantResult [Line: 443]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 316]: Loop Invariant Derived loop invariant: ((((((tmp == 0 && tmp == 0) && 1 == systemActive) && \result == 0) && 1 <= tmp___0) && splverifierCounter == 0) && 1 <= waterLevel) && 1 <= \result - InvariantResult [Line: 443]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 241]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 587]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 316]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 443]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 241]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 495]: Loop Invariant Derived loop invariant: ((waterLevel == 1 && 1 == systemActive) && methaneLevelCritical == 0) && pumpRunning == 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 135 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.3s, OverallIterations: 17, TraceHistogramMax: 3, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 12.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1966 SDtfs, 2925 SDslu, 3330 SDs, 0 SdLazy, 471 SolverSat, 85 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 257 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=532occurred in iteration=16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 17 MinimizatonAttempts, 2663 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 54 LocationsWithAnnotation, 54 PreInvPairs, 196 NumberOfFragments, 578 HoareAnnotationTreeSize, 54 FomulaSimplifications, 25684348 FormulaSimplificationTreeSizeReduction, 4.3s HoareSimplificationTime, 54 FomulaSimplificationsInter, 1462466 FormulaSimplificationTreeSizeReductionInter, 7.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 822 NumberOfCodeBlocks, 822 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 803 ConstructedInterpolants, 0 QuantifiedInterpolants, 65490 SizeOfPredicates, 6 NumberOfNonLiveVariables, 931 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 19 InterpolantComputations, 16 PerfectInterpolantSequences, 215/231 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...