./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product36.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_732fadbf-0408-4f4b-bc1f-b4df6cd94746/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_732fadbf-0408-4f4b-bc1f-b4df6cd94746/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_732fadbf-0408-4f4b-bc1f-b4df6cd94746/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_732fadbf-0408-4f4b-bc1f-b4df6cd94746/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product36.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_732fadbf-0408-4f4b-bc1f-b4df6cd94746/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_732fadbf-0408-4f4b-bc1f-b4df6cd94746/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 23207c417a082958369bf4db5eb1238fd6945f9c ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 00:32:33,543 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:32:33,546 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:32:33,610 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:32:33,612 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:32:33,619 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:32:33,621 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:32:33,624 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:32:33,627 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:32:33,629 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:32:33,630 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:32:33,632 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:32:33,633 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:32:33,635 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:32:33,637 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:32:33,639 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:32:33,640 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:32:33,641 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:32:33,644 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:32:33,647 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:32:33,650 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:32:33,652 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:32:33,654 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:32:33,655 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:32:33,659 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:32:33,660 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:32:33,661 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:32:33,662 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:32:33,663 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:32:33,665 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:32:33,665 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:32:33,666 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:32:33,668 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:32:33,669 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:32:33,670 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:32:33,671 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:32:33,672 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:32:33,673 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:32:33,673 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:32:33,675 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:32:33,676 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:32:33,677 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_732fadbf-0408-4f4b-bc1f-b4df6cd94746/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-11 00:32:33,705 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:32:33,706 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:32:33,708 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:32:33,709 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:32:33,709 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:32:33,710 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:32:33,711 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:32:33,711 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:32:33,712 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:32:33,712 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:32:33,713 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:32:33,713 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:32:33,714 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:32:33,715 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:32:33,715 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:32:33,716 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:32:33,716 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:32:33,717 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:32:33,717 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:32:33,718 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:32:33,719 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:32:33,719 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:32:33,720 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:32:33,720 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:32:33,721 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:32:33,721 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:32:33,721 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:32:33,722 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:32:33,722 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_732fadbf-0408-4f4b-bc1f-b4df6cd94746/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_732fadbf-0408-4f4b-bc1f-b4df6cd94746/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23207c417a082958369bf4db5eb1238fd6945f9c [2021-10-11 00:32:34,033 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:32:34,074 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:32:34,079 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:32:34,080 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:32:34,081 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:32:34,084 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_732fadbf-0408-4f4b-bc1f-b4df6cd94746/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/product-lines/minepump_spec4_product36.cil.c [2021-10-11 00:32:34,167 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_732fadbf-0408-4f4b-bc1f-b4df6cd94746/bin/uautomizer-Z5i5R5N3CC/data/2bc2dd114/76dd9e5975ee422ba1281c44ec5be68d/FLAG92801b894 [2021-10-11 00:32:34,822 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:32:34,822 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_732fadbf-0408-4f4b-bc1f-b4df6cd94746/sv-benchmarks/c/product-lines/minepump_spec4_product36.cil.c [2021-10-11 00:32:34,838 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_732fadbf-0408-4f4b-bc1f-b4df6cd94746/bin/uautomizer-Z5i5R5N3CC/data/2bc2dd114/76dd9e5975ee422ba1281c44ec5be68d/FLAG92801b894 [2021-10-11 00:32:35,126 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_732fadbf-0408-4f4b-bc1f-b4df6cd94746/bin/uautomizer-Z5i5R5N3CC/data/2bc2dd114/76dd9e5975ee422ba1281c44ec5be68d [2021-10-11 00:32:35,129 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:32:35,133 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:32:35,139 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:32:35,140 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:32:35,148 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:32:35,150 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:32:35" (1/1) ... [2021-10-11 00:32:35,153 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c1af760 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:35, skipping insertion in model container [2021-10-11 00:32:35,153 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:32:35" (1/1) ... [2021-10-11 00:32:35,162 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:32:35,250 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:32:35,618 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_732fadbf-0408-4f4b-bc1f-b4df6cd94746/sv-benchmarks/c/product-lines/minepump_spec4_product36.cil.c[6303,6316] [2021-10-11 00:32:35,716 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:32:35,729 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:32:35,787 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_732fadbf-0408-4f4b-bc1f-b4df6cd94746/sv-benchmarks/c/product-lines/minepump_spec4_product36.cil.c[6303,6316] [2021-10-11 00:32:35,856 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:32:35,910 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:32:35,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:35 WrapperNode [2021-10-11 00:32:35,911 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:32:35,912 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:32:35,912 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:32:35,914 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:32:35,924 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:35" (1/1) ... [2021-10-11 00:32:35,961 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:35" (1/1) ... [2021-10-11 00:32:36,048 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:32:36,054 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:32:36,056 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:32:36,056 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:32:36,065 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:35" (1/1) ... [2021-10-11 00:32:36,065 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:35" (1/1) ... [2021-10-11 00:32:36,071 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:35" (1/1) ... [2021-10-11 00:32:36,071 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:35" (1/1) ... [2021-10-11 00:32:36,083 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:35" (1/1) ... [2021-10-11 00:32:36,091 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:35" (1/1) ... [2021-10-11 00:32:36,094 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:35" (1/1) ... [2021-10-11 00:32:36,114 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:32:36,116 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:32:36,116 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:32:36,116 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:32:36,117 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:35" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_732fadbf-0408-4f4b-bc1f-b4df6cd94746/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 00:32:36,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:32:36,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 00:32:36,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:32:36,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:32:37,179 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:32:37,179 INFO L299 CfgBuilder]: Removed 102 assume(true) statements. [2021-10-11 00:32:37,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:32:37 BoogieIcfgContainer [2021-10-11 00:32:37,182 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:32:37,184 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:32:37,185 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:32:37,189 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:32:37,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:32:35" (1/3) ... [2021-10-11 00:32:37,190 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ac7350c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:32:37, skipping insertion in model container [2021-10-11 00:32:37,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:35" (2/3) ... [2021-10-11 00:32:37,191 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ac7350c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:32:37, skipping insertion in model container [2021-10-11 00:32:37,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:32:37" (3/3) ... [2021-10-11 00:32:37,193 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product36.cil.c [2021-10-11 00:32:37,211 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:32:37,215 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2021-10-11 00:32:37,229 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-11 00:32:37,264 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:32:37,265 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:32:37,265 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:32:37,265 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:32:37,266 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:32:37,266 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:32:37,266 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:32:37,266 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:32:37,286 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states. [2021-10-11 00:32:37,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-11 00:32:37,293 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:32:37,294 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:32:37,295 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:32:37,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:32:37,302 INFO L82 PathProgramCache]: Analyzing trace with hash -502845476, now seen corresponding path program 1 times [2021-10-11 00:32:37,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:32:37,314 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72896166] [2021-10-11 00:32:37,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:32:37,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:32:37,638 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 00:32:37,639 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72896166] [2021-10-11 00:32:37,640 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:32:37,640 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:32:37,641 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099924294] [2021-10-11 00:32:37,646 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 00:32:37,646 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:32:37,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 00:32:37,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 00:32:37,665 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 2 states. [2021-10-11 00:32:37,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:32:37,699 INFO L93 Difference]: Finished difference Result 154 states and 233 transitions. [2021-10-11 00:32:37,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 00:32:37,701 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2021-10-11 00:32:37,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:32:37,714 INFO L225 Difference]: With dead ends: 154 [2021-10-11 00:32:37,714 INFO L226 Difference]: Without dead ends: 76 [2021-10-11 00:32:37,718 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 00:32:37,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2021-10-11 00:32:37,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2021-10-11 00:32:37,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2021-10-11 00:32:37,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 108 transitions. [2021-10-11 00:32:37,767 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 108 transitions. Word has length 16 [2021-10-11 00:32:37,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:32:37,768 INFO L481 AbstractCegarLoop]: Abstraction has 76 states and 108 transitions. [2021-10-11 00:32:37,768 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 00:32:37,769 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 108 transitions. [2021-10-11 00:32:37,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-11 00:32:37,770 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:32:37,770 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 00:32:37,771 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 00:32:37,771 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:32:37,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:32:37,772 INFO L82 PathProgramCache]: Analyzing trace with hash -1549602373, now seen corresponding path program 1 times [2021-10-11 00:32:37,773 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:32:37,773 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64609367] [2021-10-11 00:32:37,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:32:37,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:32:37,994 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 00:32:37,995 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64609367] [2021-10-11 00:32:37,995 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:32:37,995 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:32:37,996 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301053093] [2021-10-11 00:32:37,997 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:32:37,997 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:32:37,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:32:37,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:32:37,999 INFO L87 Difference]: Start difference. First operand 76 states and 108 transitions. Second operand 3 states. [2021-10-11 00:32:38,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:32:38,021 INFO L93 Difference]: Finished difference Result 76 states and 108 transitions. [2021-10-11 00:32:38,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:32:38,025 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2021-10-11 00:32:38,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:32:38,028 INFO L225 Difference]: With dead ends: 76 [2021-10-11 00:32:38,028 INFO L226 Difference]: Without dead ends: 36 [2021-10-11 00:32:38,029 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 00:32:38,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-10-11 00:32:38,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2021-10-11 00:32:38,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2021-10-11 00:32:38,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 51 transitions. [2021-10-11 00:32:38,042 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 51 transitions. Word has length 17 [2021-10-11 00:32:38,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:32:38,042 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 51 transitions. [2021-10-11 00:32:38,043 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:32:38,043 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 51 transitions. [2021-10-11 00:32:38,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-11 00:32:38,046 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:32:38,047 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 00:32:38,047 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 00:32:38,048 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:32:38,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:32:38,050 INFO L82 PathProgramCache]: Analyzing trace with hash 1499295122, now seen corresponding path program 1 times [2021-10-11 00:32:38,050 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:32:38,050 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563739183] [2021-10-11 00:32:38,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:32:38,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:32:38,196 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 00:32:38,200 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563739183] [2021-10-11 00:32:38,201 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:32:38,202 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:32:38,202 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452296613] [2021-10-11 00:32:38,203 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:32:38,204 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:32:38,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:32:38,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:32:38,211 INFO L87 Difference]: Start difference. First operand 36 states and 51 transitions. Second operand 5 states. [2021-10-11 00:32:38,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:32:38,284 INFO L93 Difference]: Finished difference Result 89 states and 130 transitions. [2021-10-11 00:32:38,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 00:32:38,285 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2021-10-11 00:32:38,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:32:38,286 INFO L225 Difference]: With dead ends: 89 [2021-10-11 00:32:38,287 INFO L226 Difference]: Without dead ends: 59 [2021-10-11 00:32:38,287 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 00:32:38,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2021-10-11 00:32:38,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 55. [2021-10-11 00:32:38,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2021-10-11 00:32:38,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 80 transitions. [2021-10-11 00:32:38,297 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 80 transitions. Word has length 22 [2021-10-11 00:32:38,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:32:38,297 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 80 transitions. [2021-10-11 00:32:38,297 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:32:38,298 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 80 transitions. [2021-10-11 00:32:38,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-11 00:32:38,298 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:32:38,299 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] [2021-10-11 00:32:38,299 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 00:32:38,299 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:32:38,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:32:38,300 INFO L82 PathProgramCache]: Analyzing trace with hash -1870150441, now seen corresponding path program 1 times [2021-10-11 00:32:38,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:32:38,301 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004148167] [2021-10-11 00:32:38,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:32:38,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:32:38,356 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 00:32:38,361 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004148167] [2021-10-11 00:32:38,361 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:32:38,362 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:32:38,362 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556057547] [2021-10-11 00:32:38,362 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:32:38,363 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:32:38,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:32:38,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:32:38,364 INFO L87 Difference]: Start difference. First operand 55 states and 80 transitions. Second operand 3 states. [2021-10-11 00:32:38,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:32:38,412 INFO L93 Difference]: Finished difference Result 125 states and 184 transitions. [2021-10-11 00:32:38,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:32:38,413 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2021-10-11 00:32:38,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:32:38,414 INFO L225 Difference]: With dead ends: 125 [2021-10-11 00:32:38,416 INFO L226 Difference]: Without dead ends: 76 [2021-10-11 00:32:38,417 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 00:32:38,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2021-10-11 00:32:38,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 74. [2021-10-11 00:32:38,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2021-10-11 00:32:38,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 105 transitions. [2021-10-11 00:32:38,428 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 105 transitions. Word has length 23 [2021-10-11 00:32:38,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:32:38,428 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 105 transitions. [2021-10-11 00:32:38,428 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:32:38,428 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 105 transitions. [2021-10-11 00:32:38,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-11 00:32:38,430 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:32:38,430 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] [2021-10-11 00:32:38,430 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-11 00:32:38,431 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:32:38,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:32:38,431 INFO L82 PathProgramCache]: Analyzing trace with hash 944519591, now seen corresponding path program 1 times [2021-10-11 00:32:38,432 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:32:38,432 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705800903] [2021-10-11 00:32:38,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:32:38,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:32:38,516 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 00:32:38,517 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705800903] [2021-10-11 00:32:38,517 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:32:38,517 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-11 00:32:38,518 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693318324] [2021-10-11 00:32:38,518 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-10-11 00:32:38,518 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:32:38,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-11 00:32:38,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-10-11 00:32:38,520 INFO L87 Difference]: Start difference. First operand 74 states and 105 transitions. Second operand 8 states. [2021-10-11 00:32:38,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:32:38,995 INFO L93 Difference]: Finished difference Result 458 states and 673 transitions. [2021-10-11 00:32:38,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-11 00:32:38,998 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2021-10-11 00:32:38,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:32:39,005 INFO L225 Difference]: With dead ends: 458 [2021-10-11 00:32:39,005 INFO L226 Difference]: Without dead ends: 390 [2021-10-11 00:32:39,010 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2021-10-11 00:32:39,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2021-10-11 00:32:39,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 189. [2021-10-11 00:32:39,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2021-10-11 00:32:39,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 263 transitions. [2021-10-11 00:32:39,050 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 263 transitions. Word has length 25 [2021-10-11 00:32:39,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:32:39,051 INFO L481 AbstractCegarLoop]: Abstraction has 189 states and 263 transitions. [2021-10-11 00:32:39,051 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-10-11 00:32:39,051 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 263 transitions. [2021-10-11 00:32:39,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-10-11 00:32:39,053 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:32:39,056 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:32:39,057 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-11 00:32:39,057 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:32:39,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:32:39,058 INFO L82 PathProgramCache]: Analyzing trace with hash 1143002491, now seen corresponding path program 1 times [2021-10-11 00:32:39,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:32:39,058 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558578525] [2021-10-11 00:32:39,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:32:39,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:32:39,134 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:32:39,135 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558578525] [2021-10-11 00:32:39,135 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1191281677] [2021-10-11 00:32:39,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_732fadbf-0408-4f4b-bc1f-b4df6cd94746/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 00:32:39,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:32:39,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-11 00:32:39,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:32:39,398 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:32:39,398 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-11 00:32:39,399 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2021-10-11 00:32:39,399 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61961384] [2021-10-11 00:32:39,400 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 00:32:39,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:32:39,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:32:39,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:32:39,401 INFO L87 Difference]: Start difference. First operand 189 states and 263 transitions. Second operand 4 states. [2021-10-11 00:32:39,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:32:39,559 INFO L93 Difference]: Finished difference Result 423 states and 603 transitions. [2021-10-11 00:32:39,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 00:32:39,560 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 41 [2021-10-11 00:32:39,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:32:39,567 INFO L225 Difference]: With dead ends: 423 [2021-10-11 00:32:39,567 INFO L226 Difference]: Without dead ends: 298 [2021-10-11 00:32:39,569 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 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 00:32:39,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2021-10-11 00:32:39,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 287. [2021-10-11 00:32:39,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 287 states. [2021-10-11 00:32:39,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 406 transitions. [2021-10-11 00:32:39,626 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 406 transitions. Word has length 41 [2021-10-11 00:32:39,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:32:39,626 INFO L481 AbstractCegarLoop]: Abstraction has 287 states and 406 transitions. [2021-10-11 00:32:39,627 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 00:32:39,627 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 406 transitions. [2021-10-11 00:32:39,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-10-11 00:32:39,636 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:32:39,640 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] [2021-10-11 00:32:39,864 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-10-11 00:32:39,865 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:32:39,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:32:39,866 INFO L82 PathProgramCache]: Analyzing trace with hash -122499722, now seen corresponding path program 1 times [2021-10-11 00:32:39,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:32:39,866 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647171517] [2021-10-11 00:32:39,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:32:39,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:32:39,944 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 00:32:39,944 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647171517] [2021-10-11 00:32:39,944 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:32:39,945 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:32:39,945 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337181704] [2021-10-11 00:32:39,945 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:32:39,946 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:32:39,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:32:39,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:32:39,947 INFO L87 Difference]: Start difference. First operand 287 states and 406 transitions. Second operand 5 states. [2021-10-11 00:32:40,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:32:40,085 INFO L93 Difference]: Finished difference Result 877 states and 1232 transitions. [2021-10-11 00:32:40,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 00:32:40,086 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 44 [2021-10-11 00:32:40,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:32:40,093 INFO L225 Difference]: With dead ends: 877 [2021-10-11 00:32:40,094 INFO L226 Difference]: Without dead ends: 596 [2021-10-11 00:32:40,095 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 00:32:40,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2021-10-11 00:32:40,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 299. [2021-10-11 00:32:40,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2021-10-11 00:32:40,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 418 transitions. [2021-10-11 00:32:40,140 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 418 transitions. Word has length 44 [2021-10-11 00:32:40,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:32:40,140 INFO L481 AbstractCegarLoop]: Abstraction has 299 states and 418 transitions. [2021-10-11 00:32:40,140 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:32:40,140 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 418 transitions. [2021-10-11 00:32:40,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-10-11 00:32:40,144 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:32:40,144 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] [2021-10-11 00:32:40,145 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-11 00:32:40,145 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:32:40,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:32:40,145 INFO L82 PathProgramCache]: Analyzing trace with hash 18048888, now seen corresponding path program 1 times [2021-10-11 00:32:40,146 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:32:40,146 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081279739] [2021-10-11 00:32:40,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:32:40,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:32:40,275 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 00:32:40,275 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081279739] [2021-10-11 00:32:40,275 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:32:40,275 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-11 00:32:40,276 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090429963] [2021-10-11 00:32:40,276 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 00:32:40,276 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:32:40,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 00:32:40,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:32:40,278 INFO L87 Difference]: Start difference. First operand 299 states and 418 transitions. Second operand 6 states. [2021-10-11 00:32:40,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:32:40,418 INFO L93 Difference]: Finished difference Result 728 states and 1013 transitions. [2021-10-11 00:32:40,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 00:32:40,419 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 44 [2021-10-11 00:32:40,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:32:40,423 INFO L225 Difference]: With dead ends: 728 [2021-10-11 00:32:40,423 INFO L226 Difference]: Without dead ends: 435 [2021-10-11 00:32:40,424 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-10-11 00:32:40,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2021-10-11 00:32:40,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 274. [2021-10-11 00:32:40,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2021-10-11 00:32:40,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 380 transitions. [2021-10-11 00:32:40,458 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 380 transitions. Word has length 44 [2021-10-11 00:32:40,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:32:40,459 INFO L481 AbstractCegarLoop]: Abstraction has 274 states and 380 transitions. [2021-10-11 00:32:40,459 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 00:32:40,460 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 380 transitions. [2021-10-11 00:32:40,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-10-11 00:32:40,461 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:32:40,461 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] [2021-10-11 00:32:40,461 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-11 00:32:40,462 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:32:40,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:32:40,462 INFO L82 PathProgramCache]: Analyzing trace with hash 61594744, now seen corresponding path program 1 times [2021-10-11 00:32:40,462 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:32:40,467 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209124562] [2021-10-11 00:32:40,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:32:40,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:32:40,576 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 00:32:40,576 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209124562] [2021-10-11 00:32:40,576 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [480313039] [2021-10-11 00:32:40,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_732fadbf-0408-4f4b-bc1f-b4df6cd94746/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 00:32:40,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:32:40,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-11 00:32:40,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:32:40,923 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 00:32:40,923 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-11 00:32:40,924 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2021-10-11 00:32:40,924 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363420973] [2021-10-11 00:32:40,924 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-10-11 00:32:40,924 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:32:40,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-11 00:32:40,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-11 00:32:40,925 INFO L87 Difference]: Start difference. First operand 274 states and 380 transitions. Second operand 8 states. [2021-10-11 00:32:41,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:32:41,256 INFO L93 Difference]: Finished difference Result 683 states and 950 transitions. [2021-10-11 00:32:41,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-11 00:32:41,257 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 45 [2021-10-11 00:32:41,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:32:41,260 INFO L225 Difference]: With dead ends: 683 [2021-10-11 00:32:41,260 INFO L226 Difference]: Without dead ends: 456 [2021-10-11 00:32:41,261 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2021-10-11 00:32:41,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2021-10-11 00:32:41,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 236. [2021-10-11 00:32:41,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2021-10-11 00:32:41,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 319 transitions. [2021-10-11 00:32:41,317 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 319 transitions. Word has length 45 [2021-10-11 00:32:41,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:32:41,319 INFO L481 AbstractCegarLoop]: Abstraction has 236 states and 319 transitions. [2021-10-11 00:32:41,319 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-10-11 00:32:41,320 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 319 transitions. [2021-10-11 00:32:41,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-10-11 00:32:41,321 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:32:41,321 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-10-11 00:32:41,546 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:32:41,547 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:32:41,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:32:41,547 INFO L82 PathProgramCache]: Analyzing trace with hash -594503994, now seen corresponding path program 2 times [2021-10-11 00:32:41,547 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:32:41,548 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880234672] [2021-10-11 00:32:41,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:32:41,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:32:41,619 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:32:41,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:32:41,695 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:32:41,766 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:32:41,767 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 00:32:41,767 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-11 00:32:41,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:32:41 BoogieIcfgContainer [2021-10-11 00:32:41,936 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:32:41,938 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:32:41,938 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:32:41,938 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:32:41,939 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:32:37" (3/4) ... [2021-10-11 00:32:41,940 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 00:32:42,127 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_732fadbf-0408-4f4b-bc1f-b4df6cd94746/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:32:42,127 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:32:42,129 INFO L168 Benchmark]: Toolchain (without parser) took 6994.59 ms. Allocated memory was 96.5 MB in the beginning and 184.5 MB in the end (delta: 88.1 MB). Free memory was 57.2 MB in the beginning and 78.8 MB in the end (delta: -21.6 MB). Peak memory consumption was 66.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:32:42,129 INFO L168 Benchmark]: CDTParser took 0.67 ms. Allocated memory is still 96.5 MB. Free memory is still 74.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:32:42,130 INFO L168 Benchmark]: CACSL2BoogieTranslator took 772.02 ms. Allocated memory is still 96.5 MB. Free memory was 57.0 MB in the beginning and 61.3 MB in the end (delta: -4.3 MB). Peak memory consumption was 8.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:32:42,131 INFO L168 Benchmark]: Boogie Procedure Inliner took 141.26 ms. Allocated memory is still 96.5 MB. Free memory was 61.3 MB in the beginning and 58.3 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 00:32:42,131 INFO L168 Benchmark]: Boogie Preprocessor took 60.48 ms. Allocated memory is still 96.5 MB. Free memory was 58.3 MB in the beginning and 56.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:32:42,132 INFO L168 Benchmark]: RCFGBuilder took 1066.81 ms. Allocated memory was 96.5 MB in the beginning and 132.1 MB in the end (delta: 35.7 MB). Free memory was 56.2 MB in the beginning and 77.9 MB in the end (delta: -21.7 MB). Peak memory consumption was 31.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:32:42,132 INFO L168 Benchmark]: TraceAbstraction took 4751.95 ms. Allocated memory was 132.1 MB in the beginning and 184.5 MB in the end (delta: 52.4 MB). Free memory was 77.1 MB in the beginning and 102.9 MB in the end (delta: -25.9 MB). Peak memory consumption was 26.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:32:42,133 INFO L168 Benchmark]: Witness Printer took 189.24 ms. Allocated memory is still 184.5 MB. Free memory was 102.9 MB in the beginning and 78.8 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:32:42,136 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.67 ms. Allocated memory is still 96.5 MB. Free memory is still 74.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 772.02 ms. Allocated memory is still 96.5 MB. Free memory was 57.0 MB in the beginning and 61.3 MB in the end (delta: -4.3 MB). Peak memory consumption was 8.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 141.26 ms. Allocated memory is still 96.5 MB. Free memory was 61.3 MB in the beginning and 58.3 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 60.48 ms. Allocated memory is still 96.5 MB. Free memory was 58.3 MB in the beginning and 56.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1066.81 ms. Allocated memory was 96.5 MB in the beginning and 132.1 MB in the end (delta: 35.7 MB). Free memory was 56.2 MB in the beginning and 77.9 MB in the end (delta: -21.7 MB). Peak memory consumption was 31.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4751.95 ms. Allocated memory was 132.1 MB in the beginning and 184.5 MB in the end (delta: 52.4 MB). Free memory was 77.1 MB in the beginning and 102.9 MB in the end (delta: -25.9 MB). Peak memory consumption was 26.4 MB. Max. memory is 16.1 GB. * Witness Printer took 189.24 ms. Allocated memory is still 184.5 MB. Free memory was 102.9 MB in the beginning and 78.8 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 439]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L125] int pumpRunning = 0; [L126] int systemActive = 1; [L301] int cleanupTimeShifts = 4; [L613] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L811] int waterLevel = 1; [L812] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L377] int retValue_acc ; [L378] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L426] int retValue_acc ; [L429] retValue_acc = 1 [L430] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L384] tmp = valid_product() [L386] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L49] int splverifierCounter ; [L50] int tmp ; [L51] int tmp___0 ; [L52] int tmp___1 ; [L53] int tmp___2 ; [L56] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L58] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L60] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L66] tmp = __VERIFIER_nondet_int() [L68] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L829] COND TRUE waterLevel < 2 [L830] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L76] tmp___0 = __VERIFIER_nondet_int() [L78] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L86] tmp___2 = __VERIFIER_nondet_int() [L88] COND TRUE \read(tmp___2) [L296] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L133] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L140] COND TRUE \read(systemActive) [L162] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L165] COND TRUE ! pumpRunning [L259] int retValue_acc ; [L260] int tmp ; [L261] int tmp___0 ; [L891] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L894] COND FALSE !(waterLevel < 2) [L898] retValue_acc = 0 [L899] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L265] tmp = isHighWaterSensorDry() [L267] COND FALSE !(\read(tmp)) [L270] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L272] retValue_acc = tmp___0 [L273] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L167] tmp = isHighWaterLevel() [L169] COND TRUE \read(tmp) [L190] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L906] int tmp ; [L907] int tmp___0 ; [L882] int retValue_acc ; [L885] retValue_acc = waterLevel [L886] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L911] tmp = getWaterLevel() [L913] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L58] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L60] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L66] tmp = __VERIFIER_nondet_int() [L68] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L76] tmp___0 = __VERIFIER_nondet_int() [L78] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L86] tmp___2 = __VERIFIER_nondet_int() [L88] COND TRUE \read(tmp___2) [L296] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L133] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L817] COND TRUE waterLevel > 0 [L818] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L140] COND TRUE \read(systemActive) [L162] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L165] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L906] int tmp ; [L907] int tmp___0 ; [L882] int retValue_acc ; [L885] retValue_acc = waterLevel [L886] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L911] tmp = getWaterLevel() [L913] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L58] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L60] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L66] tmp = __VERIFIER_nondet_int() [L68] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L76] tmp___0 = __VERIFIER_nondet_int() [L78] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L86] tmp___2 = __VERIFIER_nondet_int() [L88] COND TRUE \read(tmp___2) [L296] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L133] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L817] COND TRUE waterLevel > 0 [L818] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L140] COND TRUE \read(systemActive) [L162] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L165] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L906] int tmp ; [L907] int tmp___0 ; [L882] int retValue_acc ; [L885] retValue_acc = waterLevel [L886] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L911] tmp = getWaterLevel() [L913] COND TRUE tmp == 0 [L214] int retValue_acc ; [L217] retValue_acc = pumpRunning [L218] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L915] tmp___0 = isPumpRunning() [L917] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L439] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 80 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.5s, OverallIterations: 10, TraceHistogramMax: 3, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 691 SDtfs, 1345 SDslu, 1191 SDs, 0 SdLazy, 205 SolverSat, 57 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 161 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=299occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 896 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 423 NumberOfCodeBlocks, 423 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 352 ConstructedInterpolants, 0 QuantifiedInterpolants, 24290 SizeOfPredicates, 3 NumberOfNonLiveVariables, 790 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 11 InterpolantComputations, 8 PerfectInterpolantSequences, 75/86 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...