./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product64.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_1b02d274-3506-499a-adfb-f89b1431f564/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b02d274-3506-499a-adfb-f89b1431f564/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_1b02d274-3506-499a-adfb-f89b1431f564/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b02d274-3506-499a-adfb-f89b1431f564/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b02d274-3506-499a-adfb-f89b1431f564/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_1b02d274-3506-499a-adfb-f89b1431f564/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 0c75cc0efa833cee2ae88b3635c1f8807d970760 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 00:34:04,499 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:34:04,503 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:34:04,560 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:34:04,561 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:34:04,562 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:34:04,565 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:34:04,567 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:34:04,570 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:34:04,572 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:34:04,573 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:34:04,574 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:34:04,575 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:34:04,577 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:34:04,578 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:34:04,580 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:34:04,581 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:34:04,582 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:34:04,589 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:34:04,597 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:34:04,600 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:34:04,602 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:34:04,606 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:34:04,608 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:34:04,612 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:34:04,612 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:34:04,613 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:34:04,621 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:34:04,622 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:34:04,623 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:34:04,624 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:34:04,625 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:34:04,627 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:34:04,629 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:34:04,630 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:34:04,630 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:34:04,631 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:34:04,632 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:34:04,632 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:34:04,633 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:34:04,634 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:34:04,635 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b02d274-3506-499a-adfb-f89b1431f564/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-11 00:34:04,661 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:34:04,661 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:34:04,663 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:34:04,664 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:34:04,664 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:34:04,664 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:34:04,664 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:34:04,664 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:34:04,665 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:34:04,665 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:34:04,673 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:34:04,673 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:34:04,673 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:34:04,673 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:34:04,674 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:34:04,674 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:34:04,674 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:34:04,674 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:34:04,674 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:34:04,675 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:34:04,675 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:34:04,675 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:34:04,675 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:34:04,676 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:34:04,676 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:34:04,676 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:34:04,676 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:34:04,676 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:34:04,677 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_1b02d274-3506-499a-adfb-f89b1431f564/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b02d274-3506-499a-adfb-f89b1431f564/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c75cc0efa833cee2ae88b3635c1f8807d970760 [2021-10-11 00:34:04,997 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:34:05,022 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:34:05,025 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:34:05,027 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:34:05,028 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:34:05,029 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b02d274-3506-499a-adfb-f89b1431f564/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c [2021-10-11 00:34:05,104 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b02d274-3506-499a-adfb-f89b1431f564/bin/uautomizer-Z5i5R5N3CC/data/44fb420bb/91424abbcefc4a2c8cbb2393ef21b248/FLAG115d9ef54 [2021-10-11 00:34:05,693 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:34:05,694 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b02d274-3506-499a-adfb-f89b1431f564/sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c [2021-10-11 00:34:05,717 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b02d274-3506-499a-adfb-f89b1431f564/bin/uautomizer-Z5i5R5N3CC/data/44fb420bb/91424abbcefc4a2c8cbb2393ef21b248/FLAG115d9ef54 [2021-10-11 00:34:05,967 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b02d274-3506-499a-adfb-f89b1431f564/bin/uautomizer-Z5i5R5N3CC/data/44fb420bb/91424abbcefc4a2c8cbb2393ef21b248 [2021-10-11 00:34:05,970 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:34:05,972 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:34:05,974 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:34:05,974 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:34:05,978 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:34:05,979 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:34:05" (1/1) ... [2021-10-11 00:34:05,981 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e508afa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:34:05, skipping insertion in model container [2021-10-11 00:34:05,981 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:34:05" (1/1) ... [2021-10-11 00:34:05,990 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:34:06,041 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:34:06,396 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_1b02d274-3506-499a-adfb-f89b1431f564/sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c[18698,18711] [2021-10-11 00:34:06,402 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:34:06,413 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:34:06,573 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_1b02d274-3506-499a-adfb-f89b1431f564/sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c[18698,18711] [2021-10-11 00:34:06,581 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:34:06,620 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:34:06,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:34:06 WrapperNode [2021-10-11 00:34:06,621 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:34:06,622 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:34:06,622 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:34:06,623 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:34:06,632 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:34:06" (1/1) ... [2021-10-11 00:34:06,652 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:34:06" (1/1) ... [2021-10-11 00:34:06,744 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:34:06,745 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:34:06,746 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:34:06,746 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:34:06,770 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:34:06" (1/1) ... [2021-10-11 00:34:06,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:34:06" (1/1) ... [2021-10-11 00:34:06,784 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:34:06" (1/1) ... [2021-10-11 00:34:06,784 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:34:06" (1/1) ... [2021-10-11 00:34:06,827 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:34:06" (1/1) ... [2021-10-11 00:34:06,860 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:34:06" (1/1) ... [2021-10-11 00:34:06,882 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:34:06" (1/1) ... [2021-10-11 00:34:06,900 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:34:06,901 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:34:06,901 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:34:06,902 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:34:06,903 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:34:06" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b02d274-3506-499a-adfb-f89b1431f564/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 00:34:07,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:34:07,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 00:34:07,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:34:07,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:34:08,599 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:34:08,600 INFO L299 CfgBuilder]: Removed 360 assume(true) statements. [2021-10-11 00:34:08,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:34:08 BoogieIcfgContainer [2021-10-11 00:34:08,604 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:34:08,610 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:34:08,611 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:34:08,615 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:34:08,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:34:05" (1/3) ... [2021-10-11 00:34:08,616 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3693bd4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:34:08, skipping insertion in model container [2021-10-11 00:34:08,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:34:06" (2/3) ... [2021-10-11 00:34:08,617 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3693bd4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:34:08, skipping insertion in model container [2021-10-11 00:34:08,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:34:08" (3/3) ... [2021-10-11 00:34:08,619 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product64.cil.c [2021-10-11 00:34:08,636 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:34:08,641 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2021-10-11 00:34:08,655 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-11 00:34:08,694 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:34:08,694 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:34:08,694 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:34:08,694 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:34:08,694 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:34:08,694 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:34:08,695 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:34:08,695 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:34:08,719 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states. [2021-10-11 00:34:08,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-11 00:34:08,728 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:34:08,729 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:34:08,729 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:34:08,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:34:08,737 INFO L82 PathProgramCache]: Analyzing trace with hash 798211303, now seen corresponding path program 1 times [2021-10-11 00:34:08,748 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:34:08,749 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42179745] [2021-10-11 00:34:08,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:34:08,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:34:09,037 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 00:34:09,037 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42179745] [2021-10-11 00:34:09,038 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:34:09,039 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:34:09,040 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614422637] [2021-10-11 00:34:09,044 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 00:34:09,045 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:34:09,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 00:34:09,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 00:34:09,063 INFO L87 Difference]: Start difference. First operand 233 states. Second operand 2 states. [2021-10-11 00:34:09,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:34:09,113 INFO L93 Difference]: Finished difference Result 460 states and 689 transitions. [2021-10-11 00:34:09,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 00:34:09,114 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2021-10-11 00:34:09,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:34:09,129 INFO L225 Difference]: With dead ends: 460 [2021-10-11 00:34:09,129 INFO L226 Difference]: Without dead ends: 229 [2021-10-11 00:34:09,134 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 00:34:09,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2021-10-11 00:34:09,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2021-10-11 00:34:09,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2021-10-11 00:34:09,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 336 transitions. [2021-10-11 00:34:09,195 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 336 transitions. Word has length 18 [2021-10-11 00:34:09,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:34:09,196 INFO L481 AbstractCegarLoop]: Abstraction has 229 states and 336 transitions. [2021-10-11 00:34:09,196 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 00:34:09,197 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 336 transitions. [2021-10-11 00:34:09,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-11 00:34:09,199 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:34:09,199 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:34:09,199 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 00:34:09,200 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:34:09,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:34:09,201 INFO L82 PathProgramCache]: Analyzing trace with hash 1952869156, now seen corresponding path program 1 times [2021-10-11 00:34:09,201 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:34:09,202 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536153873] [2021-10-11 00:34:09,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:34:09,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:34:09,327 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 00:34:09,327 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536153873] [2021-10-11 00:34:09,328 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:34:09,328 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:34:09,328 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721413316] [2021-10-11 00:34:09,331 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:34:09,332 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:34:09,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:34:09,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:34:09,333 INFO L87 Difference]: Start difference. First operand 229 states and 336 transitions. Second operand 3 states. [2021-10-11 00:34:09,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:34:09,353 INFO L93 Difference]: Finished difference Result 229 states and 336 transitions. [2021-10-11 00:34:09,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:34:09,354 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2021-10-11 00:34:09,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:34:09,355 INFO L225 Difference]: With dead ends: 229 [2021-10-11 00:34:09,356 INFO L226 Difference]: Without dead ends: 87 [2021-10-11 00:34:09,357 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 00:34:09,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2021-10-11 00:34:09,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2021-10-11 00:34:09,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2021-10-11 00:34:09,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 127 transitions. [2021-10-11 00:34:09,368 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 127 transitions. Word has length 19 [2021-10-11 00:34:09,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:34:09,369 INFO L481 AbstractCegarLoop]: Abstraction has 87 states and 127 transitions. [2021-10-11 00:34:09,369 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:34:09,369 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 127 transitions. [2021-10-11 00:34:09,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-11 00:34:09,371 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:34:09,371 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 00:34:09,371 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 00:34:09,372 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:34:09,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:34:09,373 INFO L82 PathProgramCache]: Analyzing trace with hash -1012740860, now seen corresponding path program 1 times [2021-10-11 00:34:09,373 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:34:09,373 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278615251] [2021-10-11 00:34:09,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:34:09,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:34:09,540 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 00:34:09,540 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278615251] [2021-10-11 00:34:09,540 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:34:09,540 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:34:09,541 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448131168] [2021-10-11 00:34:09,541 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:34:09,541 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:34:09,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:34:09,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:34:09,543 INFO L87 Difference]: Start difference. First operand 87 states and 127 transitions. Second operand 5 states. [2021-10-11 00:34:09,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:34:09,659 INFO L93 Difference]: Finished difference Result 193 states and 285 transitions. [2021-10-11 00:34:09,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 00:34:09,660 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2021-10-11 00:34:09,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:34:09,673 INFO L225 Difference]: With dead ends: 193 [2021-10-11 00:34:09,673 INFO L226 Difference]: Without dead ends: 112 [2021-10-11 00:34:09,674 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 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 00:34:09,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2021-10-11 00:34:09,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 108. [2021-10-11 00:34:09,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2021-10-11 00:34:09,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 159 transitions. [2021-10-11 00:34:09,698 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 159 transitions. Word has length 24 [2021-10-11 00:34:09,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:34:09,699 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 159 transitions. [2021-10-11 00:34:09,703 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:34:09,703 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 159 transitions. [2021-10-11 00:34:09,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-11 00:34:09,704 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:34:09,704 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] [2021-10-11 00:34:09,705 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 00:34:09,705 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:34:09,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:34:09,706 INFO L82 PathProgramCache]: Analyzing trace with hash 1198598115, now seen corresponding path program 1 times [2021-10-11 00:34:09,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:34:09,706 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883200220] [2021-10-11 00:34:09,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:34:09,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:34:09,822 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 00:34:09,822 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883200220] [2021-10-11 00:34:09,822 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:34:09,823 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:34:09,823 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182884510] [2021-10-11 00:34:09,824 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:34:09,824 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:34:09,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:34:09,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:34:09,825 INFO L87 Difference]: Start difference. First operand 108 states and 159 transitions. Second operand 3 states. [2021-10-11 00:34:09,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:34:09,877 INFO L93 Difference]: Finished difference Result 218 states and 323 transitions. [2021-10-11 00:34:09,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:34:09,878 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2021-10-11 00:34:09,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:34:09,879 INFO L225 Difference]: With dead ends: 218 [2021-10-11 00:34:09,880 INFO L226 Difference]: Without dead ends: 116 [2021-10-11 00:34:09,881 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 00:34:09,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2021-10-11 00:34:09,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 114. [2021-10-11 00:34:09,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2021-10-11 00:34:09,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 162 transitions. [2021-10-11 00:34:09,895 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 162 transitions. Word has length 27 [2021-10-11 00:34:09,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:34:09,895 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 162 transitions. [2021-10-11 00:34:09,896 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:34:09,896 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 162 transitions. [2021-10-11 00:34:09,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-11 00:34:09,897 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:34:09,897 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] [2021-10-11 00:34:09,898 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-11 00:34:09,898 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:34:09,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:34:09,899 INFO L82 PathProgramCache]: Analyzing trace with hash -1576081447, now seen corresponding path program 1 times [2021-10-11 00:34:09,899 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:34:09,899 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793371219] [2021-10-11 00:34:09,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:34:09,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:34:09,984 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 00:34:09,985 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793371219] [2021-10-11 00:34:09,986 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:34:09,986 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 00:34:09,986 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659215182] [2021-10-11 00:34:09,987 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:34:09,987 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:34:09,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:34:09,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:34:09,992 INFO L87 Difference]: Start difference. First operand 114 states and 162 transitions. Second operand 5 states. [2021-10-11 00:34:10,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:34:10,137 INFO L93 Difference]: Finished difference Result 578 states and 838 transitions. [2021-10-11 00:34:10,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 00:34:10,137 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2021-10-11 00:34:10,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:34:10,141 INFO L225 Difference]: With dead ends: 578 [2021-10-11 00:34:10,141 INFO L226 Difference]: Without dead ends: 470 [2021-10-11 00:34:10,142 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 00:34:10,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2021-10-11 00:34:10,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 183. [2021-10-11 00:34:10,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2021-10-11 00:34:10,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 255 transitions. [2021-10-11 00:34:10,169 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 255 transitions. Word has length 27 [2021-10-11 00:34:10,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:34:10,170 INFO L481 AbstractCegarLoop]: Abstraction has 183 states and 255 transitions. [2021-10-11 00:34:10,170 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:34:10,170 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 255 transitions. [2021-10-11 00:34:10,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-11 00:34:10,171 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:34:10,172 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] [2021-10-11 00:34:10,172 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-11 00:34:10,172 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:34:10,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:34:10,173 INFO L82 PathProgramCache]: Analyzing trace with hash 1018622107, now seen corresponding path program 1 times [2021-10-11 00:34:10,173 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:34:10,174 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984538245] [2021-10-11 00:34:10,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:34:10,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:34:10,293 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:34:10,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:34:10,393 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:34:10,438 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:34:10,438 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 00:34:10,439 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-11 00:34:10,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:34:10 BoogieIcfgContainer [2021-10-11 00:34:10,553 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:34:10,553 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:34:10,553 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:34:10,554 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:34:10,554 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:34:08" (3/4) ... [2021-10-11 00:34:10,557 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 00:34:10,646 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b02d274-3506-499a-adfb-f89b1431f564/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:34:10,646 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:34:10,648 INFO L168 Benchmark]: Toolchain (without parser) took 4675.77 ms. Allocated memory was 96.5 MB in the beginning and 182.5 MB in the end (delta: 86.0 MB). Free memory was 56.6 MB in the beginning and 114.9 MB in the end (delta: -58.3 MB). Peak memory consumption was 28.6 MB. Max. memory is 16.1 GB. [2021-10-11 00:34:10,649 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 96.5 MB. Free memory is still 74.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:34:10,649 INFO L168 Benchmark]: CACSL2BoogieTranslator took 647.81 ms. Allocated memory is still 96.5 MB. Free memory was 56.4 MB in the beginning and 60.3 MB in the end (delta: -3.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:34:10,650 INFO L168 Benchmark]: Boogie Procedure Inliner took 122.52 ms. Allocated memory is still 96.5 MB. Free memory was 60.3 MB in the beginning and 54.1 MB in the end (delta: 6.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-11 00:34:10,650 INFO L168 Benchmark]: Boogie Preprocessor took 155.12 ms. Allocated memory is still 96.5 MB. Free memory was 54.1 MB in the beginning and 49.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 00:34:10,651 INFO L168 Benchmark]: RCFGBuilder took 1705.42 ms. Allocated memory was 96.5 MB in the beginning and 132.1 MB in the end (delta: 35.7 MB). Free memory was 49.9 MB in the beginning and 90.8 MB in the end (delta: -40.9 MB). Peak memory consumption was 44.3 MB. Max. memory is 16.1 GB. [2021-10-11 00:34:10,652 INFO L168 Benchmark]: TraceAbstraction took 1942.25 ms. Allocated memory was 132.1 MB in the beginning and 182.5 MB in the end (delta: 50.3 MB). Free memory was 89.8 MB in the beginning and 127.5 MB in the end (delta: -37.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 16.1 GB. [2021-10-11 00:34:10,652 INFO L168 Benchmark]: Witness Printer took 93.19 ms. Allocated memory is still 182.5 MB. Free memory was 127.5 MB in the beginning and 114.9 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-11 00:34:10,655 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 96.5 MB. Free memory is still 74.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 647.81 ms. Allocated memory is still 96.5 MB. Free memory was 56.4 MB in the beginning and 60.3 MB in the end (delta: -3.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 122.52 ms. Allocated memory is still 96.5 MB. Free memory was 60.3 MB in the beginning and 54.1 MB in the end (delta: 6.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 155.12 ms. Allocated memory is still 96.5 MB. Free memory was 54.1 MB in the beginning and 49.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1705.42 ms. Allocated memory was 96.5 MB in the beginning and 132.1 MB in the end (delta: 35.7 MB). Free memory was 49.9 MB in the beginning and 90.8 MB in the end (delta: -40.9 MB). Peak memory consumption was 44.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1942.25 ms. Allocated memory was 132.1 MB in the beginning and 182.5 MB in the end (delta: 50.3 MB). Free memory was 89.8 MB in the beginning and 127.5 MB in the end (delta: -37.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 16.1 GB. * Witness Printer took 93.19 ms. Allocated memory is still 182.5 MB. Free memory was 127.5 MB in the beginning and 114.9 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 998]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L92] int pumpRunning = 0; [L93] int systemActive = 1; [L429] int waterLevel = 1; [L430] int methaneLevelCritical = 0; [L701] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L898] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L971] int retValue_acc ; [L972] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L978] tmp = valid_product() [L980] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L360] int splverifierCounter ; [L361] int tmp ; [L362] int tmp___0 ; [L363] int tmp___1 ; [L364] int tmp___2 ; [L367] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L369] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L371] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L377] tmp = __VERIFIER_nondet_int() [L379] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L447] COND TRUE waterLevel < 2 [L448] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L387] tmp___0 = __VERIFIER_nondet_int() [L389] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L397] tmp___2 = __VERIFIER_nondet_int() [L399] COND FALSE !(\read(tmp___2)) [L405] tmp___1 = __VERIFIER_nondet_int() [L407] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L336] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L343] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L100] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L107] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L1004] int tmp ; [L1005] int tmp___0 ; [L1006] int tmp___1 ; [L468] int retValue_acc ; [L471] retValue_acc = methaneLevelCritical [L472] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L1010] tmp = isMethaneLevelCritical() [L1012] COND FALSE !(\read(tmp)) [L500] int retValue_acc ; [L503] retValue_acc = waterLevel [L504] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L1016] tmp___0 = getWaterLevel() [L1018] COND TRUE tmp___0 == 2 [L250] int retValue_acc ; [L253] retValue_acc = pumpRunning [L254] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L1020] tmp___1 = isPumpRunning() [L1022] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L998] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 233 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.7s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 867 SDtfs, 1013 SDslu, 517 SDs, 0 SdLazy, 75 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=233occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 293 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 143 NumberOfCodeBlocks, 143 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 110 ConstructedInterpolants, 0 QuantifiedInterpolants, 4928 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...