./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product35.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_e9e8fb05-1184-4951-b967-0122366a0e15/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9e8fb05-1184-4951-b967-0122366a0e15/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_e9e8fb05-1184-4951-b967-0122366a0e15/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9e8fb05-1184-4951-b967-0122366a0e15/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product35.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9e8fb05-1184-4951-b967-0122366a0e15/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_e9e8fb05-1184-4951-b967-0122366a0e15/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 4ed98ebb1999cc1f1ce8b0aa16a3cd7cdfeeb781 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 00:24:32,318 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:24:32,321 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:24:32,368 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:24:32,369 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:24:32,370 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:24:32,373 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:24:32,375 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:24:32,377 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:24:32,379 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:24:32,380 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:24:32,382 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:24:32,383 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:24:32,384 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:24:32,386 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:24:32,388 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:24:32,389 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:24:32,391 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:24:32,394 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:24:32,396 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:24:32,399 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:24:32,401 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:24:32,403 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:24:32,404 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:24:32,408 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:24:32,408 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:24:32,409 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:24:32,410 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:24:32,411 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:24:32,412 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:24:32,413 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:24:32,414 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:24:32,415 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:24:32,420 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:24:32,424 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:24:32,425 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:24:32,426 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:24:32,427 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:24:32,428 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:24:32,429 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:24:32,431 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:24:32,432 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9e8fb05-1184-4951-b967-0122366a0e15/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-11 00:24:32,473 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:24:32,473 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:24:32,475 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:24:32,476 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:24:32,476 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:24:32,476 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:24:32,477 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:24:32,477 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:24:32,477 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:24:32,477 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:24:32,485 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:24:32,486 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:24:32,486 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:24:32,486 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:24:32,486 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:24:32,487 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:24:32,487 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:24:32,487 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:24:32,487 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:24:32,488 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:24:32,488 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:24:32,488 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:24:32,488 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:24:32,489 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:24:32,489 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:24:32,489 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:24:32,489 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:24:32,490 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:24:32,490 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_e9e8fb05-1184-4951-b967-0122366a0e15/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9e8fb05-1184-4951-b967-0122366a0e15/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ed98ebb1999cc1f1ce8b0aa16a3cd7cdfeeb781 [2021-10-11 00:24:32,766 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:24:32,825 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:24:32,827 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:24:32,829 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:24:32,840 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:24:32,841 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9e8fb05-1184-4951-b967-0122366a0e15/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/product-lines/minepump_spec4_product35.cil.c [2021-10-11 00:24:32,954 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9e8fb05-1184-4951-b967-0122366a0e15/bin/uautomizer-Z5i5R5N3CC/data/bd6051f00/0d9e83851f0840d4afba6ce896c14b59/FLAGd2e8554ce [2021-10-11 00:24:33,478 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:24:33,479 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9e8fb05-1184-4951-b967-0122366a0e15/sv-benchmarks/c/product-lines/minepump_spec4_product35.cil.c [2021-10-11 00:24:33,507 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9e8fb05-1184-4951-b967-0122366a0e15/bin/uautomizer-Z5i5R5N3CC/data/bd6051f00/0d9e83851f0840d4afba6ce896c14b59/FLAGd2e8554ce [2021-10-11 00:24:33,802 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9e8fb05-1184-4951-b967-0122366a0e15/bin/uautomizer-Z5i5R5N3CC/data/bd6051f00/0d9e83851f0840d4afba6ce896c14b59 [2021-10-11 00:24:33,804 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:24:33,805 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:24:33,807 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:24:33,808 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:24:33,811 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:24:33,812 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:24:33" (1/1) ... [2021-10-11 00:24:33,814 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@aee0041 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:24:33, skipping insertion in model container [2021-10-11 00:24:33,814 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:24:33" (1/1) ... [2021-10-11 00:24:33,819 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:24:33,874 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:24:34,206 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_e9e8fb05-1184-4951-b967-0122366a0e15/sv-benchmarks/c/product-lines/minepump_spec4_product35.cil.c[15762,15775] [2021-10-11 00:24:34,219 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:24:34,230 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:24:34,310 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_e9e8fb05-1184-4951-b967-0122366a0e15/sv-benchmarks/c/product-lines/minepump_spec4_product35.cil.c[15762,15775] [2021-10-11 00:24:34,319 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:24:34,346 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:24:34,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:24:34 WrapperNode [2021-10-11 00:24:34,347 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:24:34,348 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:24:34,349 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:24:34,349 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:24:34,357 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:24:34" (1/1) ... [2021-10-11 00:24:34,374 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:24:34" (1/1) ... [2021-10-11 00:24:34,428 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:24:34,429 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:24:34,429 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:24:34,430 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:24:34,438 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:24:34" (1/1) ... [2021-10-11 00:24:34,438 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:24:34" (1/1) ... [2021-10-11 00:24:34,442 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:24:34" (1/1) ... [2021-10-11 00:24:34,442 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:24:34" (1/1) ... [2021-10-11 00:24:34,459 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:24:34" (1/1) ... [2021-10-11 00:24:34,477 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:24:34" (1/1) ... [2021-10-11 00:24:34,480 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:24:34" (1/1) ... [2021-10-11 00:24:34,484 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:24:34,485 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:24:34,485 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:24:34,485 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:24:34,486 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:24:34" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9e8fb05-1184-4951-b967-0122366a0e15/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 00:24:34,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:24:34,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 00:24:34,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:24:34,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:24:35,445 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:24:35,445 INFO L299 CfgBuilder]: Removed 100 assume(true) statements. [2021-10-11 00:24:35,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:24:35 BoogieIcfgContainer [2021-10-11 00:24:35,448 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:24:35,453 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:24:35,453 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:24:35,457 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:24:35,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:24:33" (1/3) ... [2021-10-11 00:24:35,458 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56a1bdc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:24:35, skipping insertion in model container [2021-10-11 00:24:35,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:24:34" (2/3) ... [2021-10-11 00:24:35,459 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56a1bdc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:24:35, skipping insertion in model container [2021-10-11 00:24:35,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:24:35" (3/3) ... [2021-10-11 00:24:35,461 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product35.cil.c [2021-10-11 00:24:35,480 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:24:35,484 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2021-10-11 00:24:35,497 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-11 00:24:35,541 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:24:35,541 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:24:35,542 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:24:35,542 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:24:35,543 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:24:35,543 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:24:35,543 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:24:35,543 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:24:35,563 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states. [2021-10-11 00:24:35,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-11 00:24:35,571 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:24:35,572 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:24:35,573 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:24:35,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:24:35,580 INFO L82 PathProgramCache]: Analyzing trace with hash -1355288485, now seen corresponding path program 1 times [2021-10-11 00:24:35,590 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:24:35,591 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121074646] [2021-10-11 00:24:35,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:24:35,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:24:35,912 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 00:24:35,913 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121074646] [2021-10-11 00:24:35,913 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:24:35,914 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:24:35,914 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513886496] [2021-10-11 00:24:35,918 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 00:24:35,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:24:35,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 00:24:35,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 00:24:35,929 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 2 states. [2021-10-11 00:24:35,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:24:35,961 INFO L93 Difference]: Finished difference Result 154 states and 233 transitions. [2021-10-11 00:24:35,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 00:24:35,963 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2021-10-11 00:24:35,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:24:35,981 INFO L225 Difference]: With dead ends: 154 [2021-10-11 00:24:35,981 INFO L226 Difference]: Without dead ends: 76 [2021-10-11 00:24:35,985 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 00:24:35,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2021-10-11 00:24:36,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2021-10-11 00:24:36,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2021-10-11 00:24:36,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 108 transitions. [2021-10-11 00:24:36,024 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 108 transitions. Word has length 16 [2021-10-11 00:24:36,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:24:36,025 INFO L481 AbstractCegarLoop]: Abstraction has 76 states and 108 transitions. [2021-10-11 00:24:36,025 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 00:24:36,025 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 108 transitions. [2021-10-11 00:24:36,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-11 00:24:36,027 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:24:36,027 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 00:24:36,027 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 00:24:36,028 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:24:36,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:24:36,028 INFO L82 PathProgramCache]: Analyzing trace with hash 1892921914, now seen corresponding path program 1 times [2021-10-11 00:24:36,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:24:36,029 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180421344] [2021-10-11 00:24:36,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:24:36,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:24:36,134 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 00:24:36,141 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180421344] [2021-10-11 00:24:36,141 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:24:36,141 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:24:36,142 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638386966] [2021-10-11 00:24:36,143 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:24:36,143 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:24:36,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:24:36,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:24:36,145 INFO L87 Difference]: Start difference. First operand 76 states and 108 transitions. Second operand 3 states. [2021-10-11 00:24:36,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:24:36,162 INFO L93 Difference]: Finished difference Result 76 states and 108 transitions. [2021-10-11 00:24:36,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:24:36,163 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2021-10-11 00:24:36,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:24:36,165 INFO L225 Difference]: With dead ends: 76 [2021-10-11 00:24:36,167 INFO L226 Difference]: Without dead ends: 36 [2021-10-11 00:24:36,168 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 00:24:36,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-10-11 00:24:36,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2021-10-11 00:24:36,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2021-10-11 00:24:36,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 51 transitions. [2021-10-11 00:24:36,182 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 51 transitions. Word has length 17 [2021-10-11 00:24:36,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:24:36,183 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 51 transitions. [2021-10-11 00:24:36,184 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:24:36,184 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 51 transitions. [2021-10-11 00:24:36,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-11 00:24:36,186 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:24:36,187 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 00:24:36,187 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 00:24:36,188 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:24:36,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:24:36,189 INFO L82 PathProgramCache]: Analyzing trace with hash -1160602350, now seen corresponding path program 1 times [2021-10-11 00:24:36,189 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:24:36,189 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390303679] [2021-10-11 00:24:36,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:24:36,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:24:36,320 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 00:24:36,320 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390303679] [2021-10-11 00:24:36,321 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:24:36,321 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:24:36,321 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805630975] [2021-10-11 00:24:36,322 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 00:24:36,322 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:24:36,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 00:24:36,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:24:36,324 INFO L87 Difference]: Start difference. First operand 36 states and 51 transitions. Second operand 6 states. [2021-10-11 00:24:36,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:24:36,525 INFO L93 Difference]: Finished difference Result 119 states and 175 transitions. [2021-10-11 00:24:36,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 00:24:36,526 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2021-10-11 00:24:36,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:24:36,527 INFO L225 Difference]: With dead ends: 119 [2021-10-11 00:24:36,527 INFO L226 Difference]: Without dead ends: 89 [2021-10-11 00:24:36,528 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-11 00:24:36,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2021-10-11 00:24:36,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 55. [2021-10-11 00:24:36,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2021-10-11 00:24:36,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 80 transitions. [2021-10-11 00:24:36,539 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 80 transitions. Word has length 22 [2021-10-11 00:24:36,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:24:36,539 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 80 transitions. [2021-10-11 00:24:36,539 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 00:24:36,539 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 80 transitions. [2021-10-11 00:24:36,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-11 00:24:36,570 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:24:36,571 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 00:24:36,571 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 00:24:36,571 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:24:36,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:24:36,572 INFO L82 PathProgramCache]: Analyzing trace with hash 1572373846, now seen corresponding path program 1 times [2021-10-11 00:24:36,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:24:36,572 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232152235] [2021-10-11 00:24:36,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:24:36,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:24:36,704 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 00:24:36,704 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232152235] [2021-10-11 00:24:36,704 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:24:36,704 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:24:36,705 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638650276] [2021-10-11 00:24:36,705 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:24:36,705 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:24:36,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:24:36,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:24:36,707 INFO L87 Difference]: Start difference. First operand 55 states and 80 transitions. Second operand 3 states. [2021-10-11 00:24:36,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:24:36,742 INFO L93 Difference]: Finished difference Result 125 states and 184 transitions. [2021-10-11 00:24:36,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:24:36,742 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2021-10-11 00:24:36,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:24:36,744 INFO L225 Difference]: With dead ends: 125 [2021-10-11 00:24:36,744 INFO L226 Difference]: Without dead ends: 76 [2021-10-11 00:24:36,745 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 00:24:36,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2021-10-11 00:24:36,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 74. [2021-10-11 00:24:36,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2021-10-11 00:24:36,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 105 transitions. [2021-10-11 00:24:36,757 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 105 transitions. Word has length 23 [2021-10-11 00:24:36,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:24:36,758 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 105 transitions. [2021-10-11 00:24:36,758 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:24:36,758 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 105 transitions. [2021-10-11 00:24:36,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-11 00:24:36,759 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:24:36,760 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 00:24:36,760 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-11 00:24:36,760 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:24:36,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:24:36,761 INFO L82 PathProgramCache]: Analyzing trace with hash 1956458727, now seen corresponding path program 1 times [2021-10-11 00:24:36,761 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:24:36,761 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131351995] [2021-10-11 00:24:36,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:24:36,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:24:36,859 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 00:24:36,860 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131351995] [2021-10-11 00:24:36,860 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:24:36,860 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-11 00:24:36,860 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356567493] [2021-10-11 00:24:36,861 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-10-11 00:24:36,861 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:24:36,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-11 00:24:36,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-10-11 00:24:36,862 INFO L87 Difference]: Start difference. First operand 74 states and 105 transitions. Second operand 8 states. [2021-10-11 00:24:37,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:24:37,285 INFO L93 Difference]: Finished difference Result 458 states and 673 transitions. [2021-10-11 00:24:37,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-11 00:24:37,286 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2021-10-11 00:24:37,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:24:37,290 INFO L225 Difference]: With dead ends: 458 [2021-10-11 00:24:37,291 INFO L226 Difference]: Without dead ends: 390 [2021-10-11 00:24:37,292 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 00:24:37,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2021-10-11 00:24:37,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 189. [2021-10-11 00:24:37,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2021-10-11 00:24:37,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 263 transitions. [2021-10-11 00:24:37,346 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 263 transitions. Word has length 25 [2021-10-11 00:24:37,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:24:37,347 INFO L481 AbstractCegarLoop]: Abstraction has 189 states and 263 transitions. [2021-10-11 00:24:37,347 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-10-11 00:24:37,347 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 263 transitions. [2021-10-11 00:24:37,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-10-11 00:24:37,351 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:24:37,351 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:24:37,351 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-11 00:24:37,351 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:24:37,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:24:37,352 INFO L82 PathProgramCache]: Analyzing trace with hash -792985208, now seen corresponding path program 1 times [2021-10-11 00:24:37,352 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:24:37,352 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413701261] [2021-10-11 00:24:37,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:24:37,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:24:37,450 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:24:37,451 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413701261] [2021-10-11 00:24:37,451 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [379680416] [2021-10-11 00:24:37,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9e8fb05-1184-4951-b967-0122366a0e15/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 00:24:37,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:24:37,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-11 00:24:37,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:24:37,745 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:24:37,746 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-11 00:24:37,746 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2021-10-11 00:24:37,747 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891313246] [2021-10-11 00:24:37,747 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 00:24:37,748 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:24:37,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:24:37,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:24:37,750 INFO L87 Difference]: Start difference. First operand 189 states and 263 transitions. Second operand 4 states. [2021-10-11 00:24:37,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:24:37,961 INFO L93 Difference]: Finished difference Result 423 states and 603 transitions. [2021-10-11 00:24:37,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 00:24:37,963 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 40 [2021-10-11 00:24:37,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:24:37,969 INFO L225 Difference]: With dead ends: 423 [2021-10-11 00:24:37,969 INFO L226 Difference]: Without dead ends: 298 [2021-10-11 00:24:37,973 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 39 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 00:24:37,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2021-10-11 00:24:38,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 287. [2021-10-11 00:24:38,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 287 states. [2021-10-11 00:24:38,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 406 transitions. [2021-10-11 00:24:38,023 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 406 transitions. Word has length 40 [2021-10-11 00:24:38,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:24:38,023 INFO L481 AbstractCegarLoop]: Abstraction has 287 states and 406 transitions. [2021-10-11 00:24:38,024 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 00:24:38,024 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 406 transitions. [2021-10-11 00:24:38,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-10-11 00:24:38,033 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:24:38,047 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 00:24:38,263 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-10-11 00:24:38,264 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:24:38,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:24:38,264 INFO L82 PathProgramCache]: Analyzing trace with hash 1758708758, now seen corresponding path program 1 times [2021-10-11 00:24:38,265 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:24:38,265 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61751545] [2021-10-11 00:24:38,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:24:38,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:24:38,333 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 00:24:38,334 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61751545] [2021-10-11 00:24:38,334 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:24:38,334 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:24:38,334 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48315576] [2021-10-11 00:24:38,334 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:24:38,335 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:24:38,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:24:38,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:24:38,336 INFO L87 Difference]: Start difference. First operand 287 states and 406 transitions. Second operand 5 states. [2021-10-11 00:24:38,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:24:38,424 INFO L93 Difference]: Finished difference Result 875 states and 1230 transitions. [2021-10-11 00:24:38,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 00:24:38,425 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 44 [2021-10-11 00:24:38,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:24:38,429 INFO L225 Difference]: With dead ends: 875 [2021-10-11 00:24:38,429 INFO L226 Difference]: Without dead ends: 594 [2021-10-11 00:24:38,430 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 00:24:38,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2021-10-11 00:24:38,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 299. [2021-10-11 00:24:38,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2021-10-11 00:24:38,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 418 transitions. [2021-10-11 00:24:38,461 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 418 transitions. Word has length 44 [2021-10-11 00:24:38,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:24:38,462 INFO L481 AbstractCegarLoop]: Abstraction has 299 states and 418 transitions. [2021-10-11 00:24:38,462 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:24:38,462 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 418 transitions. [2021-10-11 00:24:38,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-10-11 00:24:38,463 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:24:38,463 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 00:24:38,463 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-11 00:24:38,463 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:24:38,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:24:38,464 INFO L82 PathProgramCache]: Analyzing trace with hash 1899257368, now seen corresponding path program 1 times [2021-10-11 00:24:38,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:24:38,464 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554759237] [2021-10-11 00:24:38,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:24:38,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:24:38,533 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 00:24:38,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554759237] [2021-10-11 00:24:38,534 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:24:38,534 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 00:24:38,534 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144463680] [2021-10-11 00:24:38,534 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 00:24:38,534 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:24:38,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:24:38,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:24:38,535 INFO L87 Difference]: Start difference. First operand 299 states and 418 transitions. Second operand 4 states. [2021-10-11 00:24:38,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:24:38,615 INFO L93 Difference]: Finished difference Result 691 states and 965 transitions. [2021-10-11 00:24:38,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 00:24:38,616 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 44 [2021-10-11 00:24:38,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:24:38,619 INFO L225 Difference]: With dead ends: 691 [2021-10-11 00:24:38,619 INFO L226 Difference]: Without dead ends: 398 [2021-10-11 00:24:38,620 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:24:38,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2021-10-11 00:24:38,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 274. [2021-10-11 00:24:38,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2021-10-11 00:24:38,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 380 transitions. [2021-10-11 00:24:38,648 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 380 transitions. Word has length 44 [2021-10-11 00:24:38,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:24:38,649 INFO L481 AbstractCegarLoop]: Abstraction has 274 states and 380 transitions. [2021-10-11 00:24:38,649 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 00:24:38,650 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 380 transitions. [2021-10-11 00:24:38,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-10-11 00:24:38,651 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:24:38,651 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 00:24:38,652 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-11 00:24:38,652 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:24:38,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:24:38,652 INFO L82 PathProgramCache]: Analyzing trace with hash 1942803224, now seen corresponding path program 1 times [2021-10-11 00:24:38,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:24:38,657 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989642155] [2021-10-11 00:24:38,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:24:38,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:24:38,773 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 00:24:38,774 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989642155] [2021-10-11 00:24:38,774 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [819005298] [2021-10-11 00:24:38,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9e8fb05-1184-4951-b967-0122366a0e15/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 00:24:38,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:24:38,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 397 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-11 00:24:38,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:24:39,052 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 00:24:39,053 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-11 00:24:39,053 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2021-10-11 00:24:39,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472670083] [2021-10-11 00:24:39,055 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-10-11 00:24:39,055 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:24:39,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-11 00:24:39,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-11 00:24:39,056 INFO L87 Difference]: Start difference. First operand 274 states and 380 transitions. Second operand 8 states. [2021-10-11 00:24:39,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:24:39,405 INFO L93 Difference]: Finished difference Result 683 states and 950 transitions. [2021-10-11 00:24:39,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-11 00:24:39,405 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 45 [2021-10-11 00:24:39,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:24:39,409 INFO L225 Difference]: With dead ends: 683 [2021-10-11 00:24:39,409 INFO L226 Difference]: Without dead ends: 456 [2021-10-11 00:24:39,411 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 00:24:39,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2021-10-11 00:24:39,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 236. [2021-10-11 00:24:39,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2021-10-11 00:24:39,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 319 transitions. [2021-10-11 00:24:39,458 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 319 transitions. Word has length 45 [2021-10-11 00:24:39,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:24:39,460 INFO L481 AbstractCegarLoop]: Abstraction has 236 states and 319 transitions. [2021-10-11 00:24:39,460 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-10-11 00:24:39,460 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 319 transitions. [2021-10-11 00:24:39,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-10-11 00:24:39,461 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:24:39,462 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 00:24:39,675 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:24:39,676 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:24:39,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:24:39,676 INFO L82 PathProgramCache]: Analyzing trace with hash 511998341, now seen corresponding path program 2 times [2021-10-11 00:24:39,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:24:39,676 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233658877] [2021-10-11 00:24:39,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:24:39,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:24:39,749 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:24:39,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:24:39,820 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:24:39,870 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:24:39,870 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 00:24:39,870 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-11 00:24:39,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:24:39 BoogieIcfgContainer [2021-10-11 00:24:39,991 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:24:39,992 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:24:39,992 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:24:39,992 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:24:39,993 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:24:35" (3/4) ... [2021-10-11 00:24:39,995 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 00:24:40,137 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9e8fb05-1184-4951-b967-0122366a0e15/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:24:40,137 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:24:40,139 INFO L168 Benchmark]: Toolchain (without parser) took 6332.73 ms. Allocated memory was 123.7 MB in the beginning and 159.4 MB in the end (delta: 35.7 MB). Free memory was 89.5 MB in the beginning and 62.4 MB in the end (delta: 27.1 MB). Peak memory consumption was 63.3 MB. Max. memory is 16.1 GB. [2021-10-11 00:24:40,140 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 81.8 MB. Free memory was 54.0 MB in the beginning and 53.9 MB in the end (delta: 30.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:24:40,140 INFO L168 Benchmark]: CACSL2BoogieTranslator took 540.21 ms. Allocated memory is still 123.7 MB. Free memory was 89.2 MB in the beginning and 90.5 MB in the end (delta: -1.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:24:40,141 INFO L168 Benchmark]: Boogie Procedure Inliner took 80.16 ms. Allocated memory is still 123.7 MB. Free memory was 90.5 MB in the beginning and 87.6 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:24:40,141 INFO L168 Benchmark]: Boogie Preprocessor took 54.85 ms. Allocated memory is still 123.7 MB. Free memory was 87.6 MB in the beginning and 85.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:24:40,142 INFO L168 Benchmark]: RCFGBuilder took 965.90 ms. Allocated memory is still 123.7 MB. Free memory was 85.0 MB in the beginning and 94.0 MB in the end (delta: -9.0 MB). Peak memory consumption was 51.6 MB. Max. memory is 16.1 GB. [2021-10-11 00:24:40,142 INFO L168 Benchmark]: TraceAbstraction took 4538.90 ms. Allocated memory was 123.7 MB in the beginning and 159.4 MB in the end (delta: 35.7 MB). Free memory was 93.3 MB in the beginning and 86.5 MB in the end (delta: 6.8 MB). Peak memory consumption was 41.7 MB. Max. memory is 16.1 GB. [2021-10-11 00:24:40,142 INFO L168 Benchmark]: Witness Printer took 145.49 ms. Allocated memory is still 159.4 MB. Free memory was 86.5 MB in the beginning and 62.4 MB in the end (delta: 24.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2021-10-11 00:24:40,145 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 81.8 MB. Free memory was 54.0 MB in the beginning and 53.9 MB in the end (delta: 30.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 540.21 ms. Allocated memory is still 123.7 MB. Free memory was 89.2 MB in the beginning and 90.5 MB in the end (delta: -1.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 80.16 ms. Allocated memory is still 123.7 MB. Free memory was 90.5 MB in the beginning and 87.6 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 54.85 ms. Allocated memory is still 123.7 MB. Free memory was 87.6 MB in the beginning and 85.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 965.90 ms. Allocated memory is still 123.7 MB. Free memory was 85.0 MB in the beginning and 94.0 MB in the end (delta: -9.0 MB). Peak memory consumption was 51.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4538.90 ms. Allocated memory was 123.7 MB in the beginning and 159.4 MB in the end (delta: 35.7 MB). Free memory was 93.3 MB in the beginning and 86.5 MB in the end (delta: 6.8 MB). Peak memory consumption was 41.7 MB. Max. memory is 16.1 GB. * Witness Printer took 145.49 ms. Allocated memory is still 159.4 MB. Free memory was 86.5 MB in the beginning and 62.4 MB in the end (delta: 24.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 786]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L150] int pumpRunning = 0; [L151] int systemActive = 1; [L317] int cleanupTimeShifts = 4; [L585] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L826] int waterLevel = 1; [L827] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L393] int retValue_acc ; [L394] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L817] int retValue_acc ; [L820] retValue_acc = 1 [L821] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L400] tmp = valid_product() [L402] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L48] int splverifierCounter ; [L49] int tmp ; [L50] int tmp___0 ; [L51] int tmp___1 ; [L52] int tmp___2 ; [L55] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L57] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L59] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L65] tmp = __VERIFIER_nondet_int() [L67] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L844] COND TRUE waterLevel < 2 [L845] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L75] tmp___0 = __VERIFIER_nondet_int() [L77] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L85] tmp___2 = __VERIFIER_nondet_int() [L87] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L157] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L164] COND TRUE \read(systemActive) [L186] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L189] COND TRUE ! pumpRunning [L283] int retValue_acc ; [L284] int tmp ; [L285] int tmp___0 ; [L906] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L909] COND FALSE !(waterLevel < 2) [L913] retValue_acc = 0 [L914] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L289] tmp = isHighWaterSensorDry() [L291] COND FALSE !(\read(tmp)) [L294] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L296] retValue_acc = tmp___0 [L297] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L191] tmp = isHighWaterLevel() [L193] COND TRUE \read(tmp) [L214] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L118] int tmp ; [L119] int tmp___0 ; [L897] int retValue_acc ; [L900] retValue_acc = waterLevel [L901] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L123] tmp = getWaterLevel() [L125] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L57] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L59] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L65] tmp = __VERIFIER_nondet_int() [L67] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L75] tmp___0 = __VERIFIER_nondet_int() [L77] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L85] tmp___2 = __VERIFIER_nondet_int() [L87] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L157] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L832] COND TRUE waterLevel > 0 [L833] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L164] COND TRUE \read(systemActive) [L186] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L189] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L118] int tmp ; [L119] int tmp___0 ; [L897] int retValue_acc ; [L900] retValue_acc = waterLevel [L901] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L123] tmp = getWaterLevel() [L125] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L57] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L59] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L65] tmp = __VERIFIER_nondet_int() [L67] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L75] tmp___0 = __VERIFIER_nondet_int() [L77] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L85] tmp___2 = __VERIFIER_nondet_int() [L87] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L157] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L832] COND TRUE waterLevel > 0 [L833] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L164] COND TRUE \read(systemActive) [L186] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L189] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L118] int tmp ; [L119] int tmp___0 ; [L897] int retValue_acc ; [L900] retValue_acc = waterLevel [L901] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L123] tmp = getWaterLevel() [L125] COND TRUE tmp == 0 [L238] int retValue_acc ; [L241] retValue_acc = pumpRunning [L242] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L127] tmp___0 = isPumpRunning() [L129] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L786] 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: 4.3s, OverallIterations: 10, TraceHistogramMax: 3, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 692 SDtfs, 1123 SDslu, 1507 SDs, 0 SdLazy, 221 SolverSat, 53 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 148 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.3s 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, 887 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 421 NumberOfCodeBlocks, 421 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 350 ConstructedInterpolants, 0 QuantifiedInterpolants, 24417 SizeOfPredicates, 3 NumberOfNonLiveVariables, 779 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 11 InterpolantComputations, 8 PerfectInterpolantSequences, 73/84 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...