./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product52.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_33b51437-0e47-43a9-8ad5-170548852758/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b51437-0e47-43a9-8ad5-170548852758/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_33b51437-0e47-43a9-8ad5-170548852758/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b51437-0e47-43a9-8ad5-170548852758/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product52.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b51437-0e47-43a9-8ad5-170548852758/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_33b51437-0e47-43a9-8ad5-170548852758/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 bde924d16b17f34a4892c0a089b602f0bd3cd51c ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 00:20:57,012 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:20:57,014 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:20:57,051 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:20:57,052 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:20:57,054 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:20:57,056 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:20:57,058 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:20:57,061 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:20:57,062 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:20:57,063 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:20:57,065 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:20:57,066 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:20:57,067 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:20:57,069 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:20:57,071 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:20:57,072 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:20:57,074 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:20:57,077 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:20:57,080 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:20:57,082 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:20:57,084 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:20:57,086 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:20:57,087 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:20:57,091 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:20:57,097 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:20:57,098 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:20:57,100 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:20:57,105 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:20:57,106 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:20:57,107 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:20:57,108 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:20:57,110 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:20:57,112 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:20:57,114 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:20:57,115 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:20:57,117 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:20:57,118 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:20:57,119 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:20:57,120 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:20:57,122 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:20:57,123 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b51437-0e47-43a9-8ad5-170548852758/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-11 00:20:57,172 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:20:57,173 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:20:57,175 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:20:57,175 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:20:57,176 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:20:57,176 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:20:57,176 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:20:57,177 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:20:57,177 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:20:57,177 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:20:57,179 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:20:57,179 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:20:57,180 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:20:57,180 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:20:57,180 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:20:57,181 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:20:57,181 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:20:57,181 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:20:57,182 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:20:57,182 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:20:57,182 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:20:57,183 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:20:57,183 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:20:57,183 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:20:57,184 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:20:57,184 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:20:57,184 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:20:57,185 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:20:57,185 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_33b51437-0e47-43a9-8ad5-170548852758/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b51437-0e47-43a9-8ad5-170548852758/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bde924d16b17f34a4892c0a089b602f0bd3cd51c [2021-10-11 00:20:57,490 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:20:57,534 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:20:57,539 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:20:57,540 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:20:57,541 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:20:57,542 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b51437-0e47-43a9-8ad5-170548852758/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/product-lines/minepump_spec1_product52.cil.c [2021-10-11 00:20:57,657 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b51437-0e47-43a9-8ad5-170548852758/bin/uautomizer-Z5i5R5N3CC/data/d39b53cbd/746d81af5a7844ab9f582a6ce7ce2439/FLAG47d2ea6ee [2021-10-11 00:20:58,227 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:20:58,227 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b51437-0e47-43a9-8ad5-170548852758/sv-benchmarks/c/product-lines/minepump_spec1_product52.cil.c [2021-10-11 00:20:58,247 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b51437-0e47-43a9-8ad5-170548852758/bin/uautomizer-Z5i5R5N3CC/data/d39b53cbd/746d81af5a7844ab9f582a6ce7ce2439/FLAG47d2ea6ee [2021-10-11 00:20:58,527 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b51437-0e47-43a9-8ad5-170548852758/bin/uautomizer-Z5i5R5N3CC/data/d39b53cbd/746d81af5a7844ab9f582a6ce7ce2439 [2021-10-11 00:20:58,530 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:20:58,532 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:20:58,537 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:20:58,538 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:20:58,543 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:20:58,545 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:20:58" (1/1) ... [2021-10-11 00:20:58,547 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1efd4592 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:58, skipping insertion in model container [2021-10-11 00:20:58,548 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:20:58" (1/1) ... [2021-10-11 00:20:58,556 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:20:58,627 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:20:58,897 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_33b51437-0e47-43a9-8ad5-170548852758/sv-benchmarks/c/product-lines/minepump_spec1_product52.cil.c[5838,5851] [2021-10-11 00:20:59,013 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:20:59,034 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:20:59,102 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_33b51437-0e47-43a9-8ad5-170548852758/sv-benchmarks/c/product-lines/minepump_spec1_product52.cil.c[5838,5851] [2021-10-11 00:20:59,159 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:20:59,199 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:20:59,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:59 WrapperNode [2021-10-11 00:20:59,200 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:20:59,202 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:20:59,202 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:20:59,202 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:20:59,210 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:59" (1/1) ... [2021-10-11 00:20:59,239 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:59" (1/1) ... [2021-10-11 00:20:59,306 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:20:59,307 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:20:59,307 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:20:59,307 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:20:59,317 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:59" (1/1) ... [2021-10-11 00:20:59,317 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:59" (1/1) ... [2021-10-11 00:20:59,323 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:59" (1/1) ... [2021-10-11 00:20:59,323 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:59" (1/1) ... [2021-10-11 00:20:59,338 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:59" (1/1) ... [2021-10-11 00:20:59,346 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:59" (1/1) ... [2021-10-11 00:20:59,349 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:59" (1/1) ... [2021-10-11 00:20:59,354 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:20:59,355 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:20:59,356 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:20:59,356 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:20:59,373 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:59" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b51437-0e47-43a9-8ad5-170548852758/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 00:20:59,482 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:20:59,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 00:20:59,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:20:59,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:21:00,630 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:21:00,630 INFO L299 CfgBuilder]: Removed 162 assume(true) statements. [2021-10-11 00:21:00,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:21:00 BoogieIcfgContainer [2021-10-11 00:21:00,634 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:21:00,638 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:21:00,638 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:21:00,642 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:21:00,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:20:58" (1/3) ... [2021-10-11 00:21:00,644 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d1354cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:21:00, skipping insertion in model container [2021-10-11 00:21:00,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:59" (2/3) ... [2021-10-11 00:21:00,645 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d1354cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:21:00, skipping insertion in model container [2021-10-11 00:21:00,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:21:00" (3/3) ... [2021-10-11 00:21:00,647 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product52.cil.c [2021-10-11 00:21:00,663 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:21:00,667 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2021-10-11 00:21:00,679 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-11 00:21:00,707 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:21:00,707 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:21:00,707 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:21:00,708 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:21:00,708 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:21:00,708 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:21:00,708 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:21:00,708 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:21:00,727 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states. [2021-10-11 00:21:00,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-11 00:21:00,734 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:21:00,735 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:21:00,736 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:21:00,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:00,742 INFO L82 PathProgramCache]: Analyzing trace with hash -1794729554, now seen corresponding path program 1 times [2021-10-11 00:21:00,752 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:21:00,753 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550150729] [2021-10-11 00:21:00,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:21:00,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:21:01,107 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 00:21:01,108 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550150729] [2021-10-11 00:21:01,109 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:21:01,109 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:21:01,110 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767127395] [2021-10-11 00:21:01,115 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 00:21:01,116 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:21:01,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 00:21:01,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 00:21:01,136 INFO L87 Difference]: Start difference. First operand 119 states. Second operand 2 states. [2021-10-11 00:21:01,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:21:01,170 INFO L93 Difference]: Finished difference Result 232 states and 353 transitions. [2021-10-11 00:21:01,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 00:21:01,171 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2021-10-11 00:21:01,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:21:01,197 INFO L225 Difference]: With dead ends: 232 [2021-10-11 00:21:01,198 INFO L226 Difference]: Without dead ends: 115 [2021-10-11 00:21:01,201 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 00:21:01,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2021-10-11 00:21:01,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2021-10-11 00:21:01,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2021-10-11 00:21:01,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 168 transitions. [2021-10-11 00:21:01,250 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 168 transitions. Word has length 16 [2021-10-11 00:21:01,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:21:01,250 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 168 transitions. [2021-10-11 00:21:01,251 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 00:21:01,251 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 168 transitions. [2021-10-11 00:21:01,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-11 00:21:01,252 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:21:01,253 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 00:21:01,253 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 00:21:01,253 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:21:01,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:01,254 INFO L82 PathProgramCache]: Analyzing trace with hash 529368141, now seen corresponding path program 1 times [2021-10-11 00:21:01,255 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:21:01,255 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531479922] [2021-10-11 00:21:01,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:21:01,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:21:01,412 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 00:21:01,412 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531479922] [2021-10-11 00:21:01,412 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:21:01,413 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:21:01,413 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122117525] [2021-10-11 00:21:01,414 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:21:01,414 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:21:01,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:21:01,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:21:01,416 INFO L87 Difference]: Start difference. First operand 115 states and 168 transitions. Second operand 3 states. [2021-10-11 00:21:01,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:21:01,429 INFO L93 Difference]: Finished difference Result 115 states and 168 transitions. [2021-10-11 00:21:01,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:21:01,430 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2021-10-11 00:21:01,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:21:01,431 INFO L225 Difference]: With dead ends: 115 [2021-10-11 00:21:01,431 INFO L226 Difference]: Without dead ends: 49 [2021-10-11 00:21:01,432 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 00:21:01,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-10-11 00:21:01,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2021-10-11 00:21:01,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2021-10-11 00:21:01,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 71 transitions. [2021-10-11 00:21:01,440 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 71 transitions. Word has length 17 [2021-10-11 00:21:01,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:21:01,440 INFO L481 AbstractCegarLoop]: Abstraction has 49 states and 71 transitions. [2021-10-11 00:21:01,441 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:21:01,441 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 71 transitions. [2021-10-11 00:21:01,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-11 00:21:01,442 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:21:01,442 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 00:21:01,442 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 00:21:01,442 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:21:01,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:01,443 INFO L82 PathProgramCache]: Analyzing trace with hash -2061312917, now seen corresponding path program 1 times [2021-10-11 00:21:01,443 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:21:01,444 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090774767] [2021-10-11 00:21:01,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:21:01,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:21:01,575 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 00:21:01,576 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090774767] [2021-10-11 00:21:01,576 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:21:01,576 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:21:01,576 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164186338] [2021-10-11 00:21:01,577 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:21:01,577 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:21:01,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:21:01,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:21:01,578 INFO L87 Difference]: Start difference. First operand 49 states and 71 transitions. Second operand 5 states. [2021-10-11 00:21:01,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:21:01,689 INFO L93 Difference]: Finished difference Result 115 states and 170 transitions. [2021-10-11 00:21:01,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 00:21:01,697 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2021-10-11 00:21:01,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:21:01,698 INFO L225 Difference]: With dead ends: 115 [2021-10-11 00:21:01,698 INFO L226 Difference]: Without dead ends: 72 [2021-10-11 00:21:01,699 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 00:21:01,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2021-10-11 00:21:01,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 68. [2021-10-11 00:21:01,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2021-10-11 00:21:01,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 100 transitions. [2021-10-11 00:21:01,711 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 100 transitions. Word has length 22 [2021-10-11 00:21:01,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:21:01,712 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 100 transitions. [2021-10-11 00:21:01,712 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:21:01,720 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2021-10-11 00:21:01,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-11 00:21:01,721 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:21:01,722 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 00:21:01,722 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 00:21:01,722 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:21:01,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:01,723 INFO L82 PathProgramCache]: Analyzing trace with hash 1499976397, now seen corresponding path program 1 times [2021-10-11 00:21:01,723 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:21:01,724 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552715259] [2021-10-11 00:21:01,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:21:01,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:21:01,801 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 00:21:01,802 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552715259] [2021-10-11 00:21:01,802 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:21:01,802 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:21:01,802 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019941619] [2021-10-11 00:21:01,803 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:21:01,803 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:21:01,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:21:01,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:21:01,804 INFO L87 Difference]: Start difference. First operand 68 states and 100 transitions. Second operand 3 states. [2021-10-11 00:21:01,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:21:01,876 INFO L93 Difference]: Finished difference Result 151 states and 224 transitions. [2021-10-11 00:21:01,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:21:01,877 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2021-10-11 00:21:01,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:21:01,884 INFO L225 Difference]: With dead ends: 151 [2021-10-11 00:21:01,884 INFO L226 Difference]: Without dead ends: 89 [2021-10-11 00:21:01,889 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 00:21:01,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2021-10-11 00:21:01,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 87. [2021-10-11 00:21:01,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2021-10-11 00:21:01,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 124 transitions. [2021-10-11 00:21:01,905 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 124 transitions. Word has length 24 [2021-10-11 00:21:01,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:21:01,905 INFO L481 AbstractCegarLoop]: Abstraction has 87 states and 124 transitions. [2021-10-11 00:21:01,906 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:21:01,906 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 124 transitions. [2021-10-11 00:21:01,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-11 00:21:01,907 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:21:01,907 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 00:21:01,907 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-11 00:21:01,907 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:21:01,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:01,908 INFO L82 PathProgramCache]: Analyzing trace with hash 1678878848, now seen corresponding path program 1 times [2021-10-11 00:21:01,908 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:21:01,909 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719460361] [2021-10-11 00:21:01,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:21:01,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:21:01,979 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 00:21:01,980 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719460361] [2021-10-11 00:21:01,980 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:21:01,980 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 00:21:01,980 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677847023] [2021-10-11 00:21:01,981 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:21:01,981 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:21:01,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:21:01,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:21:01,982 INFO L87 Difference]: Start difference. First operand 87 states and 124 transitions. Second operand 5 states. [2021-10-11 00:21:02,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:21:02,089 INFO L93 Difference]: Finished difference Result 445 states and 650 transitions. [2021-10-11 00:21:02,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-11 00:21:02,090 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2021-10-11 00:21:02,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:21:02,093 INFO L225 Difference]: With dead ends: 445 [2021-10-11 00:21:02,093 INFO L226 Difference]: Without dead ends: 364 [2021-10-11 00:21:02,094 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-11 00:21:02,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2021-10-11 00:21:02,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 160. [2021-10-11 00:21:02,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2021-10-11 00:21:02,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 226 transitions. [2021-10-11 00:21:02,125 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 226 transitions. Word has length 25 [2021-10-11 00:21:02,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:21:02,126 INFO L481 AbstractCegarLoop]: Abstraction has 160 states and 226 transitions. [2021-10-11 00:21:02,126 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:21:02,126 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 226 transitions. [2021-10-11 00:21:02,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-11 00:21:02,130 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:21:02,130 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] [2021-10-11 00:21:02,130 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-11 00:21:02,130 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:21:02,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:02,131 INFO L82 PathProgramCache]: Analyzing trace with hash 1475071754, now seen corresponding path program 1 times [2021-10-11 00:21:02,131 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:21:02,132 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61237189] [2021-10-11 00:21:02,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:21:02,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:21:02,219 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 00:21:02,220 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61237189] [2021-10-11 00:21:02,220 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:21:02,220 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 00:21:02,221 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277354906] [2021-10-11 00:21:02,222 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:21:02,224 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:21:02,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:21:02,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:21:02,225 INFO L87 Difference]: Start difference. First operand 160 states and 226 transitions. Second operand 5 states. [2021-10-11 00:21:02,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:21:02,420 INFO L93 Difference]: Finished difference Result 448 states and 637 transitions. [2021-10-11 00:21:02,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-11 00:21:02,421 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2021-10-11 00:21:02,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:21:02,424 INFO L225 Difference]: With dead ends: 448 [2021-10-11 00:21:02,425 INFO L226 Difference]: Without dead ends: 446 [2021-10-11 00:21:02,425 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-11 00:21:02,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2021-10-11 00:21:02,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 160. [2021-10-11 00:21:02,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2021-10-11 00:21:02,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 224 transitions. [2021-10-11 00:21:02,466 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 224 transitions. Word has length 26 [2021-10-11 00:21:02,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:21:02,467 INFO L481 AbstractCegarLoop]: Abstraction has 160 states and 224 transitions. [2021-10-11 00:21:02,467 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:21:02,467 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 224 transitions. [2021-10-11 00:21:02,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-11 00:21:02,468 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:21:02,469 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:21:02,469 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-11 00:21:02,469 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:21:02,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:02,470 INFO L82 PathProgramCache]: Analyzing trace with hash 317568404, now seen corresponding path program 1 times [2021-10-11 00:21:02,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:21:02,471 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208975162] [2021-10-11 00:21:02,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:21:02,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:21:02,536 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 00:21:02,537 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208975162] [2021-10-11 00:21:02,537 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:21:02,537 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:21:02,538 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814751352] [2021-10-11 00:21:02,538 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:21:02,539 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:21:02,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:21:02,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:21:02,540 INFO L87 Difference]: Start difference. First operand 160 states and 224 transitions. Second operand 5 states. [2021-10-11 00:21:02,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:21:02,649 INFO L93 Difference]: Finished difference Result 476 states and 660 transitions. [2021-10-11 00:21:02,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 00:21:02,650 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2021-10-11 00:21:02,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:21:02,653 INFO L225 Difference]: With dead ends: 476 [2021-10-11 00:21:02,653 INFO L226 Difference]: Without dead ends: 322 [2021-10-11 00:21:02,654 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 00:21:02,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2021-10-11 00:21:02,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 172. [2021-10-11 00:21:02,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2021-10-11 00:21:02,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 236 transitions. [2021-10-11 00:21:02,676 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 236 transitions. Word has length 31 [2021-10-11 00:21:02,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:21:02,676 INFO L481 AbstractCegarLoop]: Abstraction has 172 states and 236 transitions. [2021-10-11 00:21:02,676 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:21:02,677 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 236 transitions. [2021-10-11 00:21:02,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-11 00:21:02,678 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:21:02,678 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:21:02,679 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-11 00:21:02,679 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:21:02,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:02,680 INFO L82 PathProgramCache]: Analyzing trace with hash -75458606, now seen corresponding path program 1 times [2021-10-11 00:21:02,680 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:21:02,680 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852729631] [2021-10-11 00:21:02,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:21:02,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:21:02,750 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 00:21:02,750 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852729631] [2021-10-11 00:21:02,750 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:21:02,751 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-11 00:21:02,751 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247126185] [2021-10-11 00:21:02,751 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 00:21:02,752 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:21:02,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 00:21:02,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:21:02,753 INFO L87 Difference]: Start difference. First operand 172 states and 236 transitions. Second operand 6 states. [2021-10-11 00:21:02,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:21:02,892 INFO L93 Difference]: Finished difference Result 510 states and 694 transitions. [2021-10-11 00:21:02,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 00:21:02,892 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2021-10-11 00:21:02,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:21:02,896 INFO L225 Difference]: With dead ends: 510 [2021-10-11 00:21:02,896 INFO L226 Difference]: Without dead ends: 344 [2021-10-11 00:21:02,898 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 00:21:02,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2021-10-11 00:21:02,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 180. [2021-10-11 00:21:02,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2021-10-11 00:21:02,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 244 transitions. [2021-10-11 00:21:02,921 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 244 transitions. Word has length 31 [2021-10-11 00:21:02,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:21:02,921 INFO L481 AbstractCegarLoop]: Abstraction has 180 states and 244 transitions. [2021-10-11 00:21:02,921 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 00:21:02,921 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 244 transitions. [2021-10-11 00:21:02,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-11 00:21:02,922 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:21:02,923 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:21:02,923 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-11 00:21:02,923 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:21:02,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:02,924 INFO L82 PathProgramCache]: Analyzing trace with hash 182706832, now seen corresponding path program 1 times [2021-10-11 00:21:02,924 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:21:02,925 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902419175] [2021-10-11 00:21:02,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:21:02,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:21:02,993 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 00:21:02,994 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902419175] [2021-10-11 00:21:02,997 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:21:02,999 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:21:02,999 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721094841] [2021-10-11 00:21:03,000 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:21:03,000 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:21:03,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:21:03,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:21:03,002 INFO L87 Difference]: Start difference. First operand 180 states and 244 transitions. Second operand 3 states. [2021-10-11 00:21:03,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:21:03,060 INFO L93 Difference]: Finished difference Result 442 states and 598 transitions. [2021-10-11 00:21:03,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:21:03,061 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2021-10-11 00:21:03,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:21:03,081 INFO L225 Difference]: With dead ends: 442 [2021-10-11 00:21:03,082 INFO L226 Difference]: Without dead ends: 268 [2021-10-11 00:21:03,082 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 00:21:03,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2021-10-11 00:21:03,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 268. [2021-10-11 00:21:03,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2021-10-11 00:21:03,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 354 transitions. [2021-10-11 00:21:03,114 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 354 transitions. Word has length 31 [2021-10-11 00:21:03,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:21:03,114 INFO L481 AbstractCegarLoop]: Abstraction has 268 states and 354 transitions. [2021-10-11 00:21:03,114 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:21:03,114 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 354 transitions. [2021-10-11 00:21:03,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-11 00:21:03,118 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:21:03,118 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:21:03,118 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-11 00:21:03,119 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:21:03,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:03,120 INFO L82 PathProgramCache]: Analyzing trace with hash -1930053038, now seen corresponding path program 1 times [2021-10-11 00:21:03,120 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:21:03,122 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320730317] [2021-10-11 00:21:03,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:21:03,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:21:03,218 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:21:03,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:21:03,294 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:21:03,357 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:21:03,357 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 00:21:03,357 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-11 00:21:03,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:21:03 BoogieIcfgContainer [2021-10-11 00:21:03,508 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:21:03,509 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:21:03,510 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:21:03,511 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:21:03,519 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:21:00" (3/4) ... [2021-10-11 00:21:03,521 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 00:21:03,641 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b51437-0e47-43a9-8ad5-170548852758/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:21:03,641 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:21:03,643 INFO L168 Benchmark]: Toolchain (without parser) took 5110.74 ms. Allocated memory was 117.4 MB in the beginning and 167.8 MB in the end (delta: 50.3 MB). Free memory was 81.2 MB in the beginning and 88.0 MB in the end (delta: -6.9 MB). Peak memory consumption was 44.0 MB. Max. memory is 16.1 GB. [2021-10-11 00:21:03,644 INFO L168 Benchmark]: CDTParser took 0.64 ms. Allocated memory is still 117.4 MB. Free memory was 88.7 MB in the beginning and 88.6 MB in the end (delta: 30.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:21:03,644 INFO L168 Benchmark]: CACSL2BoogieTranslator took 663.53 ms. Allocated memory is still 117.4 MB. Free memory was 81.0 MB in the beginning and 81.6 MB in the end (delta: -636.1 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:21:03,645 INFO L168 Benchmark]: Boogie Procedure Inliner took 104.50 ms. Allocated memory is still 117.4 MB. Free memory was 81.6 MB in the beginning and 78.0 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 00:21:03,645 INFO L168 Benchmark]: Boogie Preprocessor took 47.76 ms. Allocated memory is still 117.4 MB. Free memory was 77.4 MB in the beginning and 75.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:21:03,646 INFO L168 Benchmark]: RCFGBuilder took 1280.59 ms. Allocated memory was 117.4 MB in the beginning and 167.8 MB in the end (delta: 50.3 MB). Free memory was 74.9 MB in the beginning and 117.4 MB in the end (delta: -42.5 MB). Peak memory consumption was 44.6 MB. Max. memory is 16.1 GB. [2021-10-11 00:21:03,646 INFO L168 Benchmark]: TraceAbstraction took 2869.88 ms. Allocated memory is still 167.8 MB. Free memory was 117.4 MB in the beginning and 100.6 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.7 MB. Max. memory is 16.1 GB. [2021-10-11 00:21:03,646 INFO L168 Benchmark]: Witness Printer took 132.07 ms. Allocated memory is still 167.8 MB. Free memory was 100.6 MB in the beginning and 88.0 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-11 00:21:03,648 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.64 ms. Allocated memory is still 117.4 MB. Free memory was 88.7 MB in the beginning and 88.6 MB in the end (delta: 30.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 663.53 ms. Allocated memory is still 117.4 MB. Free memory was 81.0 MB in the beginning and 81.6 MB in the end (delta: -636.1 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 104.50 ms. Allocated memory is still 117.4 MB. Free memory was 81.6 MB in the beginning and 78.0 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 47.76 ms. Allocated memory is still 117.4 MB. Free memory was 77.4 MB in the beginning and 75.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1280.59 ms. Allocated memory was 117.4 MB in the beginning and 167.8 MB in the end (delta: 50.3 MB). Free memory was 74.9 MB in the beginning and 117.4 MB in the end (delta: -42.5 MB). Peak memory consumption was 44.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2869.88 ms. Allocated memory is still 167.8 MB. Free memory was 117.4 MB in the beginning and 100.6 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.7 MB. Max. memory is 16.1 GB. * Witness Printer took 132.07 ms. Allocated memory is still 167.8 MB. Free memory was 100.6 MB in the beginning and 88.0 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: 385]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L50] int waterLevel = 1; [L51] int methaneLevelCritical = 0; [L160] int pumpRunning = 0; [L161] int systemActive = 1; [L460] int cleanupTimeShifts = 4; [L754] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L536] int retValue_acc ; [L537] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L977] int retValue_acc ; [L980] retValue_acc = 1 [L981] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L543] tmp = valid_product() [L545] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L392] int splverifierCounter ; [L393] int tmp ; [L394] int tmp___0 ; [L395] int tmp___1 ; [L396] int tmp___2 ; [L399] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L401] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L403] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L409] tmp = __VERIFIER_nondet_int() [L411] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L68] COND TRUE waterLevel < 2 [L69] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L419] tmp___0 = __VERIFIER_nondet_int() [L421] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L80] COND FALSE !(\read(methaneLevelCritical)) [L83] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L429] tmp___2 = __VERIFIER_nondet_int() [L431] COND TRUE \read(tmp___2) [L376] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L168] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L175] COND TRUE \read(systemActive) [L223] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L226] COND FALSE !(\read(pumpRunning)) [L197] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L200] COND TRUE ! pumpRunning [L320] int retValue_acc ; [L321] int tmp ; [L322] int tmp___0 ; [L130] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L133] COND FALSE !(waterLevel < 2) [L137] retValue_acc = 0 [L138] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L326] tmp = isHighWaterSensorDry() [L328] COND FALSE !(\read(tmp)) [L331] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L333] retValue_acc = tmp___0 [L334] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L202] tmp = isHighWaterLevel() [L204] COND TRUE \read(tmp) [L251] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L560] int tmp ; [L561] int tmp___0 ; [L89] int retValue_acc ; [L92] retValue_acc = methaneLevelCritical [L93] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L565] tmp = isMethaneLevelCritical() [L567] COND TRUE \read(tmp) [L275] int retValue_acc ; [L278] retValue_acc = pumpRunning [L279] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L569] tmp___0 = isPumpRunning() [L571] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L385] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 119 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.6s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 873 SDtfs, 1371 SDslu, 1164 SDs, 0 SdLazy, 154 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 59 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=268occurred in iteration=9, 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, 810 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 255 NumberOfCodeBlocks, 255 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 214 ConstructedInterpolants, 0 QuantifiedInterpolants, 10236 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...