./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product39.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fddc1df9-6491-46fa-8e83-ca9e3c3cb339/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fddc1df9-6491-46fa-8e83-ca9e3c3cb339/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fddc1df9-6491-46fa-8e83-ca9e3c3cb339/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fddc1df9-6491-46fa-8e83-ca9e3c3cb339/bin/uautomizer-w2VwFs6gM0/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product39.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fddc1df9-6491-46fa-8e83-ca9e3c3cb339/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fddc1df9-6491-46fa-8e83-ca9e3c3cb339/bin/uautomizer-w2VwFs6gM0 --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 859282ae831edbc368c6c02a28d784b7a1a4e20c5d272fba61fe5454e7afcc18 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 14:36:16,982 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 14:36:16,985 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 14:36:17,032 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 14:36:17,033 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 14:36:17,039 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 14:36:17,041 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 14:36:17,046 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 14:36:17,049 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 14:36:17,055 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 14:36:17,057 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 14:36:17,059 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 14:36:17,060 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 14:36:17,063 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 14:36:17,065 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 14:36:17,074 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 14:36:17,076 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 14:36:17,078 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 14:36:17,080 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 14:36:17,090 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 14:36:17,092 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 14:36:17,094 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 14:36:17,099 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 14:36:17,100 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 14:36:17,112 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 14:36:17,113 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 14:36:17,113 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 14:36:17,116 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 14:36:17,117 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 14:36:17,119 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 14:36:17,120 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 14:36:17,121 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 14:36:17,124 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 14:36:17,125 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 14:36:17,127 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 14:36:17,128 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 14:36:17,129 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 14:36:17,129 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 14:36:17,129 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 14:36:17,130 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 14:36:17,131 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 14:36:17,132 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fddc1df9-6491-46fa-8e83-ca9e3c3cb339/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-22 14:36:17,189 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 14:36:17,191 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 14:36:17,192 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 14:36:17,192 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 14:36:17,194 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 14:36:17,195 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 14:36:17,195 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 14:36:17,195 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 14:36:17,196 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 14:36:17,196 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 14:36:17,197 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 14:36:17,197 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 14:36:17,198 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 14:36:17,198 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 14:36:17,198 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 14:36:17,198 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 14:36:17,199 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 14:36:17,199 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 14:36:17,199 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 14:36:17,200 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 14:36:17,200 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 14:36:17,200 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 14:36:17,200 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 14:36:17,201 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 14:36:17,201 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 14:36:17,201 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 14:36:17,202 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 14:36:17,202 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 14:36:17,202 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 14:36:17,202 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 14:36:17,203 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 14:36:17,203 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 14:36:17,203 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_fddc1df9-6491-46fa-8e83-ca9e3c3cb339/bin/uautomizer-w2VwFs6gM0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fddc1df9-6491-46fa-8e83-ca9e3c3cb339/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 859282ae831edbc368c6c02a28d784b7a1a4e20c5d272fba61fe5454e7afcc18 [2021-11-22 14:36:17,531 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 14:36:17,569 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 14:36:17,572 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 14:36:17,574 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 14:36:17,575 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 14:36:17,576 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fddc1df9-6491-46fa-8e83-ca9e3c3cb339/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/product-lines/minepump_spec3_product39.cil.c [2021-11-22 14:36:17,690 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fddc1df9-6491-46fa-8e83-ca9e3c3cb339/bin/uautomizer-w2VwFs6gM0/data/2b2eb11dc/fc961dea336442449728417520055569/FLAG0232509d8 [2021-11-22 14:36:18,324 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 14:36:18,325 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fddc1df9-6491-46fa-8e83-ca9e3c3cb339/sv-benchmarks/c/product-lines/minepump_spec3_product39.cil.c [2021-11-22 14:36:18,341 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fddc1df9-6491-46fa-8e83-ca9e3c3cb339/bin/uautomizer-w2VwFs6gM0/data/2b2eb11dc/fc961dea336442449728417520055569/FLAG0232509d8 [2021-11-22 14:36:18,571 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fddc1df9-6491-46fa-8e83-ca9e3c3cb339/bin/uautomizer-w2VwFs6gM0/data/2b2eb11dc/fc961dea336442449728417520055569 [2021-11-22 14:36:18,573 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 14:36:18,574 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 14:36:18,592 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 14:36:18,592 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 14:36:18,595 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 14:36:18,596 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:36:18" (1/1) ... [2021-11-22 14:36:18,597 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@248f3423 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:36:18, skipping insertion in model container [2021-11-22 14:36:18,597 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:36:18" (1/1) ... [2021-11-22 14:36:18,605 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 14:36:18,663 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 14:36:18,982 WARN L230 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_fddc1df9-6491-46fa-8e83-ca9e3c3cb339/sv-benchmarks/c/product-lines/minepump_spec3_product39.cil.c[7086,7099] [2021-11-22 14:36:19,105 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 14:36:19,128 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 14:36:19,209 WARN L230 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_fddc1df9-6491-46fa-8e83-ca9e3c3cb339/sv-benchmarks/c/product-lines/minepump_spec3_product39.cil.c[7086,7099] [2021-11-22 14:36:19,281 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 14:36:19,309 INFO L208 MainTranslator]: Completed translation [2021-11-22 14:36:19,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:36:19 WrapperNode [2021-11-22 14:36:19,309 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 14:36:19,310 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 14:36:19,310 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 14:36:19,311 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 14:36:19,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:36:19" (1/1) ... [2021-11-22 14:36:19,334 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:36:19" (1/1) ... [2021-11-22 14:36:19,392 INFO L137 Inliner]: procedures = 54, calls = 156, calls flagged for inlining = 53, calls inlined = 82, statements flattened = 653 [2021-11-22 14:36:19,392 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 14:36:19,393 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 14:36:19,393 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 14:36:19,393 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 14:36:19,403 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:36:19" (1/1) ... [2021-11-22 14:36:19,404 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:36:19" (1/1) ... [2021-11-22 14:36:19,409 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:36:19" (1/1) ... [2021-11-22 14:36:19,409 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:36:19" (1/1) ... [2021-11-22 14:36:19,422 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:36:19" (1/1) ... [2021-11-22 14:36:19,431 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:36:19" (1/1) ... [2021-11-22 14:36:19,434 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:36:19" (1/1) ... [2021-11-22 14:36:19,439 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 14:36:19,440 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 14:36:19,441 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 14:36:19,441 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 14:36:19,442 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:36:19" (1/1) ... [2021-11-22 14:36:19,453 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 14:36:19,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fddc1df9-6491-46fa-8e83-ca9e3c3cb339/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:36:19,508 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fddc1df9-6491-46fa-8e83-ca9e3c3cb339/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 14:36:19,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fddc1df9-6491-46fa-8e83-ca9e3c3cb339/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 14:36:19,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 14:36:19,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 14:36:19,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 14:36:19,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 14:36:19,673 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 14:36:19,675 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 14:36:20,410 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 14:36:20,421 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 14:36:20,424 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-22 14:36:20,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:36:20 BoogieIcfgContainer [2021-11-22 14:36:20,429 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 14:36:20,431 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 14:36:20,431 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 14:36:20,435 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 14:36:20,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:36:18" (1/3) ... [2021-11-22 14:36:20,437 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@447f8010 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:36:20, skipping insertion in model container [2021-11-22 14:36:20,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:36:19" (2/3) ... [2021-11-22 14:36:20,438 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@447f8010 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:36:20, skipping insertion in model container [2021-11-22 14:36:20,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:36:20" (3/3) ... [2021-11-22 14:36:20,440 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product39.cil.c [2021-11-22 14:36:20,452 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 14:36:20,453 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-22 14:36:20,532 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 14:36:20,539 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-22 14:36:20,540 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-22 14:36:20,565 INFO L276 IsEmpty]: Start isEmpty. Operand has 169 states, 165 states have (on average 1.393939393939394) internal successors, (230), 168 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:36:20,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-22 14:36:20,574 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:36:20,575 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:36:20,576 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:36:20,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:36:20,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1219142685, now seen corresponding path program 1 times [2021-11-22 14:36:20,596 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:36:20,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64331065] [2021-11-22 14:36:20,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:36:20,598 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:36:20,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:36:20,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:36:20,812 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:36:20,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64331065] [2021-11-22 14:36:20,813 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64331065] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:36:20,813 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:36:20,814 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-22 14:36:20,815 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074242504] [2021-11-22 14:36:20,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:36:20,822 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-22 14:36:20,822 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:36:20,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-22 14:36:20,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-22 14:36:20,864 INFO L87 Difference]: Start difference. First operand has 169 states, 165 states have (on average 1.393939393939394) internal successors, (230), 168 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:36:20,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:36:20,914 INFO L93 Difference]: Finished difference Result 328 states and 449 transitions. [2021-11-22 14:36:20,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 14:36:20,916 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-11-22 14:36:20,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:36:20,929 INFO L225 Difference]: With dead ends: 328 [2021-11-22 14:36:20,929 INFO L226 Difference]: Without dead ends: 159 [2021-11-22 14:36:20,934 INFO L932 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 [2021-11-22 14:36:20,938 INFO L933 BasicCegarLoop]: 220 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 14:36:20,940 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 14:36:20,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2021-11-22 14:36:20,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2021-11-22 14:36:20,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 156 states have (on average 1.358974358974359) internal successors, (212), 158 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:36:20,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 212 transitions. [2021-11-22 14:36:20,995 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 212 transitions. Word has length 19 [2021-11-22 14:36:20,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:36:20,995 INFO L470 AbstractCegarLoop]: Abstraction has 159 states and 212 transitions. [2021-11-22 14:36:20,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:36:20,996 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 212 transitions. [2021-11-22 14:36:20,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-22 14:36:20,998 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:36:20,998 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:36:20,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-22 14:36:20,999 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:36:21,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:36:21,000 INFO L85 PathProgramCache]: Analyzing trace with hash -692932089, now seen corresponding path program 1 times [2021-11-22 14:36:21,000 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:36:21,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695333873] [2021-11-22 14:36:21,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:36:21,001 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:36:21,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:36:21,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:36:21,095 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:36:21,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695333873] [2021-11-22 14:36:21,096 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695333873] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:36:21,096 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:36:21,096 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 14:36:21,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365687902] [2021-11-22 14:36:21,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:36:21,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 14:36:21,099 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:36:21,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 14:36:21,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 14:36:21,100 INFO L87 Difference]: Start difference. First operand 159 states and 212 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:36:21,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:36:21,139 INFO L93 Difference]: Finished difference Result 159 states and 212 transitions. [2021-11-22 14:36:21,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 14:36:21,148 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-11-22 14:36:21,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:36:21,153 INFO L225 Difference]: With dead ends: 159 [2021-11-22 14:36:21,154 INFO L226 Difference]: Without dead ends: 68 [2021-11-22 14:36:21,155 INFO L932 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 [2021-11-22 14:36:21,159 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 82 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 14:36:21,163 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 95 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 14:36:21,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-11-22 14:36:21,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2021-11-22 14:36:21,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 67 states have (on average 1.3432835820895523) internal successors, (90), 67 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:36:21,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 90 transitions. [2021-11-22 14:36:21,178 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 90 transitions. Word has length 20 [2021-11-22 14:36:21,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:36:21,180 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 90 transitions. [2021-11-22 14:36:21,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:36:21,181 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 90 transitions. [2021-11-22 14:36:21,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-22 14:36:21,184 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:36:21,184 INFO L514 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] [2021-11-22 14:36:21,185 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-22 14:36:21,187 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:36:21,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:36:21,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1158479671, now seen corresponding path program 1 times [2021-11-22 14:36:21,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:36:21,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18331371] [2021-11-22 14:36:21,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:36:21,195 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:36:21,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:36:21,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:36:21,328 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:36:21,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18331371] [2021-11-22 14:36:21,328 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18331371] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:36:21,329 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:36:21,329 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-22 14:36:21,329 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700683773] [2021-11-22 14:36:21,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:36:21,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-22 14:36:21,331 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:36:21,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-22 14:36:21,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-22 14:36:21,332 INFO L87 Difference]: Start difference. First operand 68 states and 90 transitions. Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:36:21,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:36:21,422 INFO L93 Difference]: Finished difference Result 221 states and 299 transitions. [2021-11-22 14:36:21,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 14:36:21,423 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-11-22 14:36:21,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:36:21,425 INFO L225 Difference]: With dead ends: 221 [2021-11-22 14:36:21,425 INFO L226 Difference]: Without dead ends: 160 [2021-11-22 14:36:21,426 INFO L932 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 [2021-11-22 14:36:21,428 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 320 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 14:36:21,429 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [320 Valid, 509 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 14:36:21,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2021-11-22 14:36:21,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 95. [2021-11-22 14:36:21,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 94 states have (on average 1.3617021276595744) internal successors, (128), 94 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:36:21,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 128 transitions. [2021-11-22 14:36:21,451 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 128 transitions. Word has length 26 [2021-11-22 14:36:21,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:36:21,452 INFO L470 AbstractCegarLoop]: Abstraction has 95 states and 128 transitions. [2021-11-22 14:36:21,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:36:21,453 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 128 transitions. [2021-11-22 14:36:21,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-22 14:36:21,455 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:36:21,455 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:36:21,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-22 14:36:21,456 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:36:21,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:36:21,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1828243988, now seen corresponding path program 1 times [2021-11-22 14:36:21,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:36:21,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43028683] [2021-11-22 14:36:21,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:36:21,458 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:36:21,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:36:21,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:36:21,581 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:36:21,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43028683] [2021-11-22 14:36:21,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43028683] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:36:21,583 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:36:21,583 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 14:36:21,583 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204566616] [2021-11-22 14:36:21,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:36:21,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 14:36:21,585 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:36:21,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 14:36:21,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-22 14:36:21,587 INFO L87 Difference]: Start difference. First operand 95 states and 128 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:36:21,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:36:21,789 INFO L93 Difference]: Finished difference Result 549 states and 759 transitions. [2021-11-22 14:36:21,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 14:36:21,790 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-11-22 14:36:21,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:36:21,797 INFO L225 Difference]: With dead ends: 549 [2021-11-22 14:36:21,797 INFO L226 Difference]: Without dead ends: 461 [2021-11-22 14:36:21,801 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-22 14:36:21,814 INFO L933 BasicCegarLoop]: 152 mSDtfsCounter, 462 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 462 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 14:36:21,818 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [462 Valid, 525 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 14:36:21,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2021-11-22 14:36:21,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 175. [2021-11-22 14:36:21,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 174 states have (on average 1.3448275862068966) internal successors, (234), 174 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:36:21,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 234 transitions. [2021-11-22 14:36:21,882 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 234 transitions. Word has length 30 [2021-11-22 14:36:21,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:36:21,883 INFO L470 AbstractCegarLoop]: Abstraction has 175 states and 234 transitions. [2021-11-22 14:36:21,883 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:36:21,883 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 234 transitions. [2021-11-22 14:36:21,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-22 14:36:21,886 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:36:21,886 INFO L514 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] [2021-11-22 14:36:21,886 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-22 14:36:21,887 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:36:21,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:36:21,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1367305071, now seen corresponding path program 1 times [2021-11-22 14:36:21,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:36:21,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214748313] [2021-11-22 14:36:21,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:36:21,888 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:36:21,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 14:36:21,939 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 14:36:21,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 14:36:22,008 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 14:36:22,008 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-22 14:36:22,010 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2021-11-22 14:36:22,012 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2021-11-22 14:36:22,013 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2021-11-22 14:36:22,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-22 14:36:22,018 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-11-22 14:36:22,022 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-22 14:36:22,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 02:36:22 BoogieIcfgContainer [2021-11-22 14:36:22,100 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-22 14:36:22,101 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-22 14:36:22,101 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-22 14:36:22,101 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-22 14:36:22,102 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:36:20" (3/4) ... [2021-11-22 14:36:22,104 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-22 14:36:22,191 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fddc1df9-6491-46fa-8e83-ca9e3c3cb339/bin/uautomizer-w2VwFs6gM0/witness.graphml [2021-11-22 14:36:22,191 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-22 14:36:22,192 INFO L158 Benchmark]: Toolchain (without parser) took 3617.70ms. Allocated memory was 94.4MB in the beginning and 136.3MB in the end (delta: 41.9MB). Free memory was 60.4MB in the beginning and 55.7MB in the end (delta: 4.7MB). Peak memory consumption was 46.5MB. Max. memory is 16.1GB. [2021-11-22 14:36:22,193 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 94.4MB. Free memory was 46.9MB in the beginning and 46.8MB in the end (delta: 42.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 14:36:22,193 INFO L158 Benchmark]: CACSL2BoogieTranslator took 717.73ms. Allocated memory is still 94.4MB. Free memory was 60.2MB in the beginning and 61.4MB in the end (delta: -1.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-22 14:36:22,194 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.28ms. Allocated memory is still 94.4MB. Free memory was 61.4MB in the beginning and 57.6MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-22 14:36:22,195 INFO L158 Benchmark]: Boogie Preprocessor took 46.53ms. Allocated memory is still 94.4MB. Free memory was 57.6MB in the beginning and 55.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 14:36:22,195 INFO L158 Benchmark]: RCFGBuilder took 988.30ms. Allocated memory was 94.4MB in the beginning and 136.3MB in the end (delta: 41.9MB). Free memory was 55.2MB in the beginning and 101.1MB in the end (delta: -46.0MB). Peak memory consumption was 20.7MB. Max. memory is 16.1GB. [2021-11-22 14:36:22,196 INFO L158 Benchmark]: TraceAbstraction took 1669.56ms. Allocated memory is still 136.3MB. Free memory was 100.3MB in the beginning and 59.9MB in the end (delta: 40.5MB). Peak memory consumption was 39.0MB. Max. memory is 16.1GB. [2021-11-22 14:36:22,196 INFO L158 Benchmark]: Witness Printer took 90.37ms. Allocated memory is still 136.3MB. Free memory was 59.9MB in the beginning and 55.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-22 14:36:22,200 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 94.4MB. Free memory was 46.9MB in the beginning and 46.8MB in the end (delta: 42.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 717.73ms. Allocated memory is still 94.4MB. Free memory was 60.2MB in the beginning and 61.4MB in the end (delta: -1.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.28ms. Allocated memory is still 94.4MB. Free memory was 61.4MB in the beginning and 57.6MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.53ms. Allocated memory is still 94.4MB. Free memory was 57.6MB in the beginning and 55.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 988.30ms. Allocated memory was 94.4MB in the beginning and 136.3MB in the end (delta: 41.9MB). Free memory was 55.2MB in the beginning and 101.1MB in the end (delta: -46.0MB). Peak memory consumption was 20.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1669.56ms. Allocated memory is still 136.3MB. Free memory was 100.3MB in the beginning and 59.9MB in the end (delta: 40.5MB). Peak memory consumption was 39.0MB. Max. memory is 16.1GB. * Witness Printer took 90.37ms. Allocated memory is still 136.3MB. Free memory was 59.9MB in the beginning and 55.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 461]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L95] int waterLevel = 1; [L96] int methaneLevelCritical = 0; [L195] int pumpRunning = 0; [L196] int systemActive = 1; [L635] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L832] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L905] int retValue_acc ; [L906] int tmp ; [L910] FCALL select_helpers() [L911] FCALL select_features() [L912] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L912] RET, EXPR valid_product() [L912] tmp = valid_product() [L914] COND TRUE \read(tmp) [L916] FCALL setup() [L917] CALL runTest() [L899] CALL test() [L391] int splverifierCounter ; [L392] int tmp ; [L393] int tmp___0 ; [L394] int tmp___1 ; [L395] int tmp___2 ; [L398] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L400] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L402] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L408] tmp = __VERIFIER_nondet_int() [L410] COND TRUE \read(tmp) [L412] CALL waterRise() [L113] COND TRUE waterLevel < 2 [L114] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L412] RET waterRise() [L418] tmp___0 = __VERIFIER_nondet_int() [L420] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L428] tmp___2 = __VERIFIER_nondet_int() [L430] COND FALSE !(\read(tmp___2)) [L434] tmp___1 = __VERIFIER_nondet_int() [L436] COND TRUE \read(tmp___1) [L438] CALL stopSystem() [L377] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L384] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L438] RET stopSystem() [L445] CALL timeShift() [L203] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L210] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L218] CALL __utac_acc__Specification3_spec__1() [L929] int tmp ; [L930] int tmp___0 ; [L931] int tmp___1 ; [L935] CALL, EXPR isMethaneLevelCritical() [L134] int retValue_acc ; [L137] retValue_acc = methaneLevelCritical [L138] return (retValue_acc); VAL [\result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L935] RET, EXPR isMethaneLevelCritical() [L935] tmp = isMethaneLevelCritical() [L937] COND FALSE !(\read(tmp)) [L941] CALL, EXPR getWaterLevel() [L166] int retValue_acc ; [L169] retValue_acc = waterLevel [L170] return (retValue_acc); VAL [\result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=0, waterLevel=2] [L941] RET, EXPR getWaterLevel() [L941] tmp___0 = getWaterLevel() [L943] COND TRUE tmp___0 == 2 [L945] CALL, EXPR isPumpRunning() [L310] int retValue_acc ; [L313] retValue_acc = pumpRunning [L314] return (retValue_acc); VAL [\result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L945] RET, EXPR isPumpRunning() [L945] tmp___1 = isPumpRunning() [L947] COND FALSE !(\read(tmp___1)) [L951] CALL __automaton_fail() [L461] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - UnprovableResult [Line: 461]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 461]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 169 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 864 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 864 mSDsluCounter, 1349 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 788 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 72 IncrementalHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 561 mSDtfsCounter, 72 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=175occurred in iteration=4, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 351 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 127 NumberOfCodeBlocks, 127 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 91 ConstructedInterpolants, 0 QuantifiedInterpolants, 193 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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! [2021-11-22 14:36:22,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fddc1df9-6491-46fa-8e83-ca9e3c3cb339/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE