./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product31.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb0bf5ed-920f-46c9-a736-93d253b5b873/bin/uautomizer-hJ6jxDFKc3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb0bf5ed-920f-46c9-a736-93d253b5b873/bin/uautomizer-hJ6jxDFKc3/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb0bf5ed-920f-46c9-a736-93d253b5b873/bin/uautomizer-hJ6jxDFKc3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb0bf5ed-920f-46c9-a736-93d253b5b873/bin/uautomizer-hJ6jxDFKc3/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product31.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb0bf5ed-920f-46c9-a736-93d253b5b873/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb0bf5ed-920f-46c9-a736-93d253b5b873/bin/uautomizer-hJ6jxDFKc3 --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 0c42c8d7f1a38c68df3f66b15941e9ece338b3d5 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-15 19:38:41,306 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-15 19:38:41,308 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-15 19:38:41,341 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-15 19:38:41,342 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-15 19:38:41,343 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-15 19:38:41,345 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-15 19:38:41,348 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-15 19:38:41,351 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-15 19:38:41,352 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-15 19:38:41,354 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-15 19:38:41,356 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-15 19:38:41,356 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-15 19:38:41,358 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-15 19:38:41,360 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-15 19:38:41,362 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-15 19:38:41,363 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-15 19:38:41,365 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-15 19:38:41,367 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-15 19:38:41,370 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-15 19:38:41,373 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-15 19:38:41,375 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-15 19:38:41,376 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-15 19:38:41,378 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-15 19:38:41,382 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-15 19:38:41,382 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-15 19:38:41,383 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-15 19:38:41,384 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-15 19:38:41,385 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-15 19:38:41,387 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-15 19:38:41,388 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-15 19:38:41,389 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-15 19:38:41,390 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-15 19:38:41,392 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-15 19:38:41,394 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-15 19:38:41,394 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-15 19:38:41,395 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-15 19:38:41,395 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-15 19:38:41,396 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-15 19:38:41,397 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-15 19:38:41,398 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-15 19:38:41,399 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb0bf5ed-920f-46c9-a736-93d253b5b873/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-15 19:38:41,427 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-15 19:38:41,427 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-15 19:38:41,428 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-15 19:38:41,428 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-15 19:38:41,429 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-15 19:38:41,429 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-15 19:38:41,430 INFO L138 SettingsManager]: * Use SBE=true [2021-10-15 19:38:41,430 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-15 19:38:41,430 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-15 19:38:41,431 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-15 19:38:41,431 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-15 19:38:41,431 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-15 19:38:41,432 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-15 19:38:41,432 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-15 19:38:41,432 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-15 19:38:41,432 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-15 19:38:41,433 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-15 19:38:41,433 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-15 19:38:41,433 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-15 19:38:41,434 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-15 19:38:41,434 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-15 19:38:41,434 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-15 19:38:41,434 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-15 19:38:41,435 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-15 19:38:41,435 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-15 19:38:41,435 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-15 19:38:41,436 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-15 19:38:41,436 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-15 19:38:41,436 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-15 19:38:41,437 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-15 19:38:41,437 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-15 19:38:41,437 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-15 19:38:41,437 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_eb0bf5ed-920f-46c9-a736-93d253b5b873/bin/uautomizer-hJ6jxDFKc3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb0bf5ed-920f-46c9-a736-93d253b5b873/bin/uautomizer-hJ6jxDFKc3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c42c8d7f1a38c68df3f66b15941e9ece338b3d5 [2021-10-15 19:38:41,687 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-15 19:38:41,711 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-15 19:38:41,714 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-15 19:38:41,716 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-15 19:38:41,716 INFO L275 PluginConnector]: CDTParser initialized [2021-10-15 19:38:41,718 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb0bf5ed-920f-46c9-a736-93d253b5b873/bin/uautomizer-hJ6jxDFKc3/../../sv-benchmarks/c/product-lines/minepump_spec1_product31.cil.c [2021-10-15 19:38:41,791 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb0bf5ed-920f-46c9-a736-93d253b5b873/bin/uautomizer-hJ6jxDFKc3/data/ccc11b792/860ffa4cf36d4664a64ec0b4ed30e3c7/FLAGc45ff45c9 [2021-10-15 19:38:42,488 INFO L306 CDTParser]: Found 1 translation units. [2021-10-15 19:38:42,488 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb0bf5ed-920f-46c9-a736-93d253b5b873/sv-benchmarks/c/product-lines/minepump_spec1_product31.cil.c [2021-10-15 19:38:42,506 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb0bf5ed-920f-46c9-a736-93d253b5b873/bin/uautomizer-hJ6jxDFKc3/data/ccc11b792/860ffa4cf36d4664a64ec0b4ed30e3c7/FLAGc45ff45c9 [2021-10-15 19:38:42,753 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb0bf5ed-920f-46c9-a736-93d253b5b873/bin/uautomizer-hJ6jxDFKc3/data/ccc11b792/860ffa4cf36d4664a64ec0b4ed30e3c7 [2021-10-15 19:38:42,755 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-15 19:38:42,757 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-15 19:38:42,759 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-15 19:38:42,759 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-15 19:38:42,763 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-15 19:38:42,764 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:38:42" (1/1) ... [2021-10-15 19:38:42,765 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24b4094c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:38:42, skipping insertion in model container [2021-10-15 19:38:42,765 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:38:42" (1/1) ... [2021-10-15 19:38:42,773 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-15 19:38:42,813 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-15 19:38:43,095 WARN L228 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_eb0bf5ed-920f-46c9-a736-93d253b5b873/sv-benchmarks/c/product-lines/minepump_spec1_product31.cil.c[8611,8624] [2021-10-15 19:38:43,173 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:38:43,183 INFO L203 MainTranslator]: Completed pre-run [2021-10-15 19:38:43,247 WARN L228 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_eb0bf5ed-920f-46c9-a736-93d253b5b873/sv-benchmarks/c/product-lines/minepump_spec1_product31.cil.c[8611,8624] [2021-10-15 19:38:43,294 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:38:43,314 INFO L208 MainTranslator]: Completed translation [2021-10-15 19:38:43,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:38:43 WrapperNode [2021-10-15 19:38:43,315 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-15 19:38:43,316 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-15 19:38:43,316 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-15 19:38:43,316 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-15 19:38:43,325 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:38:43" (1/1) ... [2021-10-15 19:38:43,343 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:38:43" (1/1) ... [2021-10-15 19:38:43,409 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-15 19:38:43,420 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-15 19:38:43,420 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-15 19:38:43,420 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-15 19:38:43,429 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:38:43" (1/1) ... [2021-10-15 19:38:43,429 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:38:43" (1/1) ... [2021-10-15 19:38:43,435 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:38:43" (1/1) ... [2021-10-15 19:38:43,435 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:38:43" (1/1) ... [2021-10-15 19:38:43,448 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:38:43" (1/1) ... [2021-10-15 19:38:43,456 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:38:43" (1/1) ... [2021-10-15 19:38:43,459 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:38:43" (1/1) ... [2021-10-15 19:38:43,464 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-15 19:38:43,465 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-15 19:38:43,465 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-15 19:38:43,466 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-15 19:38:43,469 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:38:43" (1/1) ... [2021-10-15 19:38:43,488 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-15 19:38:43,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb0bf5ed-920f-46c9-a736-93d253b5b873/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:38:43,534 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb0bf5ed-920f-46c9-a736-93d253b5b873/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-15 19:38:43,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb0bf5ed-920f-46c9-a736-93d253b5b873/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-15 19:38:43,604 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-15 19:38:43,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-15 19:38:43,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-15 19:38:43,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-15 19:38:44,643 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-15 19:38:44,644 INFO L299 CfgBuilder]: Removed 160 assume(true) statements. [2021-10-15 19:38:44,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:38:44 BoogieIcfgContainer [2021-10-15 19:38:44,647 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-15 19:38:44,652 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-15 19:38:44,652 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-15 19:38:44,657 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-15 19:38:44,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 07:38:42" (1/3) ... [2021-10-15 19:38:44,659 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e7ab0bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 07:38:44, skipping insertion in model container [2021-10-15 19:38:44,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:38:43" (2/3) ... [2021-10-15 19:38:44,660 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e7ab0bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 07:38:44, skipping insertion in model container [2021-10-15 19:38:44,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:38:44" (3/3) ... [2021-10-15 19:38:44,662 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product31.cil.c [2021-10-15 19:38:44,669 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-15 19:38:44,671 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-15 19:38:44,724 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-15 19:38:44,731 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, mConcurrency=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 [2021-10-15 19:38:44,732 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-15 19:38:44,745 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 107 places, 159 transitions, 318 flow [2021-10-15 19:38:44,795 INFO L129 PetriNetUnfolder]: 53/159 cut-off events. [2021-10-15 19:38:44,796 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:38:44,798 INFO L84 FinitePrefix]: Finished finitePrefix Result has 160 conditions, 159 events. 53/159 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 431 event pairs, 0 based on Foata normal form. 0/103 useless extension candidates. Maximal degree in co-relation 0. Up to 8 conditions per place. [2021-10-15 19:38:44,798 INFO L82 GeneralOperation]: Start removeDead. Operand has 107 places, 159 transitions, 318 flow [2021-10-15 19:38:44,807 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 103 places, 152 transitions, 304 flow [2021-10-15 19:38:44,818 INFO L129 PetriNetUnfolder]: 22/71 cut-off events. [2021-10-15 19:38:44,818 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:38:44,819 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:38:44,819 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:38:44,820 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:38:44,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:38:44,826 INFO L82 PathProgramCache]: Analyzing trace with hash 706440619, now seen corresponding path program 1 times [2021-10-15 19:38:44,835 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:38:44,836 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373285711] [2021-10-15 19:38:44,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:38:44,838 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:38:45,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:38:45,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:38:45,122 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:38:45,123 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373285711] [2021-10-15 19:38:45,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373285711] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:38:45,125 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:38:45,125 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-15 19:38:45,127 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746111509] [2021-10-15 19:38:45,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-15 19:38:45,138 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:38:45,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-15 19:38:45,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-15 19:38:45,171 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 159 [2021-10-15 19:38:45,180 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 152 transitions, 304 flow. Second operand has 2 states, 2 states have (on average 152.5) internal successors, (305), 2 states have internal predecessors, (305), 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) [2021-10-15 19:38:45,180 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:38:45,181 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 159 [2021-10-15 19:38:45,182 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:38:45,234 INFO L129 PetriNetUnfolder]: 45/147 cut-off events. [2021-10-15 19:38:45,235 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:38:45,237 INFO L84 FinitePrefix]: Finished finitePrefix Result has 149 conditions, 147 events. 45/147 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 396 event pairs, 0 based on Foata normal form. 4/104 useless extension candidates. Maximal degree in co-relation 147. Up to 8 conditions per place. [2021-10-15 19:38:45,241 INFO L132 encePairwiseOnDemand]: 154/159 looper letters, 0 selfloop transitions, 0 changer transitions 0/147 dead transitions. [2021-10-15 19:38:45,242 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 147 transitions, 294 flow [2021-10-15 19:38:45,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-15 19:38:45,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-10-15 19:38:45,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 309 transitions. [2021-10-15 19:38:45,264 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9716981132075472 [2021-10-15 19:38:45,265 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 309 transitions. [2021-10-15 19:38:45,265 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 309 transitions. [2021-10-15 19:38:45,270 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:38:45,272 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 309 transitions. [2021-10-15 19:38:45,284 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 154.5) internal successors, (309), 2 states have internal predecessors, (309), 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) [2021-10-15 19:38:45,293 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 159.0) internal successors, (477), 3 states have internal predecessors, (477), 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) [2021-10-15 19:38:45,294 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 159.0) internal successors, (477), 3 states have internal predecessors, (477), 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) [2021-10-15 19:38:45,296 INFO L186 Difference]: Start difference. First operand has 103 places, 152 transitions, 304 flow. Second operand 2 states and 309 transitions. [2021-10-15 19:38:45,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 147 transitions, 294 flow [2021-10-15 19:38:45,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 147 transitions, 294 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-10-15 19:38:45,311 INFO L242 Difference]: Finished difference. Result has 104 places, 147 transitions, 294 flow [2021-10-15 19:38:45,313 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=294, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=294, PETRI_PLACES=104, PETRI_TRANSITIONS=147} [2021-10-15 19:38:45,314 INFO L334 CegarLoopForPetriNet]: 103 programPoint places, 1 predicate places. [2021-10-15 19:38:45,315 INFO L470 AbstractCegarLoop]: Abstraction has has 104 places, 147 transitions, 294 flow [2021-10-15 19:38:45,316 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 152.5) internal successors, (305), 2 states have internal predecessors, (305), 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) [2021-10-15 19:38:45,316 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:38:45,316 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:38:45,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-15 19:38:45,318 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:38:45,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:38:45,319 INFO L82 PathProgramCache]: Analyzing trace with hash -340316278, now seen corresponding path program 1 times [2021-10-15 19:38:45,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:38:45,319 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869411410] [2021-10-15 19:38:45,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:38:45,320 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:38:45,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:38:45,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:38:45,516 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:38:45,517 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869411410] [2021-10-15 19:38:45,517 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869411410] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:38:45,518 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:38:45,518 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-15 19:38:45,519 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691087638] [2021-10-15 19:38:45,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-15 19:38:45,524 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:38:45,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-15 19:38:45,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-15 19:38:45,527 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 159 [2021-10-15 19:38:45,529 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 147 transitions, 294 flow. Second operand has 3 states, 3 states have (on average 149.66666666666666) internal successors, (449), 3 states have internal predecessors, (449), 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) [2021-10-15 19:38:45,530 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:38:45,530 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 159 [2021-10-15 19:38:45,530 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:38:45,550 INFO L129 PetriNetUnfolder]: 20/64 cut-off events. [2021-10-15 19:38:45,551 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:38:45,554 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 64 events. 20/64 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 76 event pairs, 0 based on Foata normal form. 0/44 useless extension candidates. Maximal degree in co-relation 66. Up to 8 conditions per place. [2021-10-15 19:38:45,555 INFO L132 encePairwiseOnDemand]: 157/159 looper letters, 1 selfloop transitions, 1 changer transitions 0/64 dead transitions. [2021-10-15 19:38:45,555 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 64 transitions, 132 flow [2021-10-15 19:38:45,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-15 19:38:45,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-15 19:38:45,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 450 transitions. [2021-10-15 19:38:45,559 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9433962264150944 [2021-10-15 19:38:45,560 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 450 transitions. [2021-10-15 19:38:45,561 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 450 transitions. [2021-10-15 19:38:45,562 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:38:45,566 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 450 transitions. [2021-10-15 19:38:45,568 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 150.0) internal successors, (450), 3 states have internal predecessors, (450), 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) [2021-10-15 19:38:45,573 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 states have internal predecessors, (636), 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) [2021-10-15 19:38:45,574 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 states have internal predecessors, (636), 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) [2021-10-15 19:38:45,574 INFO L186 Difference]: Start difference. First operand has 104 places, 147 transitions, 294 flow. Second operand 3 states and 450 transitions. [2021-10-15 19:38:45,575 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 64 transitions, 132 flow [2021-10-15 19:38:45,576 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 64 transitions, 132 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-10-15 19:38:45,578 INFO L242 Difference]: Finished difference. Result has 48 places, 64 transitions, 130 flow [2021-10-15 19:38:45,579 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=130, PETRI_PLACES=48, PETRI_TRANSITIONS=64} [2021-10-15 19:38:45,587 INFO L334 CegarLoopForPetriNet]: 103 programPoint places, -55 predicate places. [2021-10-15 19:38:45,587 INFO L470 AbstractCegarLoop]: Abstraction has has 48 places, 64 transitions, 130 flow [2021-10-15 19:38:45,588 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 149.66666666666666) internal successors, (449), 3 states have internal predecessors, (449), 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) [2021-10-15 19:38:45,589 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:38:45,589 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:38:45,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-15 19:38:45,590 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:38:45,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:38:45,593 INFO L82 PathProgramCache]: Analyzing trace with hash 1163144762, now seen corresponding path program 1 times [2021-10-15 19:38:45,593 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:38:45,594 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804024333] [2021-10-15 19:38:45,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:38:45,594 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:38:45,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:38:45,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:38:45,761 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:38:45,762 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804024333] [2021-10-15 19:38:45,763 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804024333] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:38:45,763 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:38:45,763 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-15 19:38:45,764 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302635729] [2021-10-15 19:38:45,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-15 19:38:45,766 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:38:45,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-15 19:38:45,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-15 19:38:45,773 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 159 [2021-10-15 19:38:45,775 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 64 transitions, 130 flow. Second operand has 6 states, 6 states have (on average 140.0) internal successors, (840), 6 states have internal predecessors, (840), 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) [2021-10-15 19:38:45,775 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:38:45,775 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 159 [2021-10-15 19:38:45,775 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:38:45,975 INFO L129 PetriNetUnfolder]: 48/154 cut-off events. [2021-10-15 19:38:45,975 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:38:45,976 INFO L84 FinitePrefix]: Finished finitePrefix Result has 171 conditions, 154 events. 48/154 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 371 event pairs, 0 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 167. Up to 15 conditions per place. [2021-10-15 19:38:45,977 INFO L132 encePairwiseOnDemand]: 153/159 looper letters, 6 selfloop transitions, 6 changer transitions 0/68 dead transitions. [2021-10-15 19:38:45,977 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 68 transitions, 162 flow [2021-10-15 19:38:45,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-15 19:38:45,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-15 19:38:45,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 848 transitions. [2021-10-15 19:38:45,981 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8888888888888888 [2021-10-15 19:38:45,981 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 848 transitions. [2021-10-15 19:38:45,981 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 848 transitions. [2021-10-15 19:38:45,982 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:38:45,982 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 848 transitions. [2021-10-15 19:38:45,985 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 141.33333333333334) internal successors, (848), 6 states have internal predecessors, (848), 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) [2021-10-15 19:38:45,988 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 159.0) internal successors, (1113), 7 states have internal predecessors, (1113), 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) [2021-10-15 19:38:45,990 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 159.0) internal successors, (1113), 7 states have internal predecessors, (1113), 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) [2021-10-15 19:38:45,990 INFO L186 Difference]: Start difference. First operand has 48 places, 64 transitions, 130 flow. Second operand 6 states and 848 transitions. [2021-10-15 19:38:45,990 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 68 transitions, 162 flow [2021-10-15 19:38:45,992 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 68 transitions, 161 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-15 19:38:45,994 INFO L242 Difference]: Finished difference. Result has 55 places, 67 transitions, 163 flow [2021-10-15 19:38:45,995 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=129, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=163, PETRI_PLACES=55, PETRI_TRANSITIONS=67} [2021-10-15 19:38:45,995 INFO L334 CegarLoopForPetriNet]: 103 programPoint places, -48 predicate places. [2021-10-15 19:38:45,995 INFO L470 AbstractCegarLoop]: Abstraction has has 55 places, 67 transitions, 163 flow [2021-10-15 19:38:45,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 140.0) internal successors, (840), 6 states have internal predecessors, (840), 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) [2021-10-15 19:38:45,997 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:38:45,997 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:38:45,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-15 19:38:45,997 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:38:45,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:38:45,998 INFO L82 PathProgramCache]: Analyzing trace with hash -1300420088, now seen corresponding path program 1 times [2021-10-15 19:38:45,998 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:38:45,999 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547320670] [2021-10-15 19:38:45,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:38:45,999 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:38:46,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:38:46,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:38:46,067 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:38:46,067 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547320670] [2021-10-15 19:38:46,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547320670] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:38:46,067 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:38:46,068 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-15 19:38:46,068 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617931281] [2021-10-15 19:38:46,068 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-15 19:38:46,069 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:38:46,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-15 19:38:46,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-15 19:38:46,072 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 159 [2021-10-15 19:38:46,073 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 67 transitions, 163 flow. Second operand has 5 states, 5 states have (on average 131.8) internal successors, (659), 5 states have internal predecessors, (659), 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) [2021-10-15 19:38:46,073 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:38:46,074 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 159 [2021-10-15 19:38:46,074 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:38:46,239 INFO L129 PetriNetUnfolder]: 216/645 cut-off events. [2021-10-15 19:38:46,239 INFO L130 PetriNetUnfolder]: For 24/24 co-relation queries the response was YES. [2021-10-15 19:38:46,240 INFO L84 FinitePrefix]: Finished finitePrefix Result has 794 conditions, 645 events. 216/645 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 3229 event pairs, 0 based on Foata normal form. 0/445 useless extension candidates. Maximal degree in co-relation 788. Up to 74 conditions per place. [2021-10-15 19:38:46,246 INFO L132 encePairwiseOnDemand]: 151/159 looper letters, 14 selfloop transitions, 15 changer transitions 0/87 dead transitions. [2021-10-15 19:38:46,246 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 87 transitions, 261 flow [2021-10-15 19:38:46,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-15 19:38:46,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-10-15 19:38:46,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1080 transitions. [2021-10-15 19:38:46,252 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8490566037735849 [2021-10-15 19:38:46,252 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1080 transitions. [2021-10-15 19:38:46,252 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1080 transitions. [2021-10-15 19:38:46,253 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:38:46,253 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1080 transitions. [2021-10-15 19:38:46,257 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 135.0) internal successors, (1080), 8 states have internal predecessors, (1080), 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) [2021-10-15 19:38:46,261 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 159.0) internal successors, (1431), 9 states have internal predecessors, (1431), 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) [2021-10-15 19:38:46,263 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 159.0) internal successors, (1431), 9 states have internal predecessors, (1431), 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) [2021-10-15 19:38:46,263 INFO L186 Difference]: Start difference. First operand has 55 places, 67 transitions, 163 flow. Second operand 8 states and 1080 transitions. [2021-10-15 19:38:46,263 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 87 transitions, 261 flow [2021-10-15 19:38:46,266 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 87 transitions, 257 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-15 19:38:46,268 INFO L242 Difference]: Finished difference. Result has 66 places, 81 transitions, 263 flow [2021-10-15 19:38:46,268 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=263, PETRI_PLACES=66, PETRI_TRANSITIONS=81} [2021-10-15 19:38:46,269 INFO L334 CegarLoopForPetriNet]: 103 programPoint places, -37 predicate places. [2021-10-15 19:38:46,269 INFO L470 AbstractCegarLoop]: Abstraction has has 66 places, 81 transitions, 263 flow [2021-10-15 19:38:46,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 131.8) internal successors, (659), 5 states have internal predecessors, (659), 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) [2021-10-15 19:38:46,270 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:38:46,270 INFO L254 CegarLoopForPetriNet]: 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] [2021-10-15 19:38:46,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-15 19:38:46,271 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:38:46,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:38:46,272 INFO L82 PathProgramCache]: Analyzing trace with hash -891352514, now seen corresponding path program 1 times [2021-10-15 19:38:46,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:38:46,272 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861352913] [2021-10-15 19:38:46,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:38:46,273 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:38:46,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:38:46,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:38:46,380 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:38:46,383 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861352913] [2021-10-15 19:38:46,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861352913] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:38:46,384 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:38:46,385 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-15 19:38:46,385 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861789111] [2021-10-15 19:38:46,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-15 19:38:46,386 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:38:46,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-15 19:38:46,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-15 19:38:46,388 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 159 [2021-10-15 19:38:46,389 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 81 transitions, 263 flow. Second operand has 5 states, 5 states have (on average 102.6) internal successors, (513), 5 states have internal predecessors, (513), 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) [2021-10-15 19:38:46,389 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:38:46,389 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 159 [2021-10-15 19:38:46,390 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:38:46,544 INFO L129 PetriNetUnfolder]: 140/615 cut-off events. [2021-10-15 19:38:46,544 INFO L130 PetriNetUnfolder]: For 229/229 co-relation queries the response was YES. [2021-10-15 19:38:46,549 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1065 conditions, 615 events. 140/615 cut-off events. For 229/229 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 3260 event pairs, 0 based on Foata normal form. 24/527 useless extension candidates. Maximal degree in co-relation 1053. Up to 96 conditions per place. [2021-10-15 19:38:46,550 INFO L132 encePairwiseOnDemand]: 150/159 looper letters, 0 selfloop transitions, 0 changer transitions 64/64 dead transitions. [2021-10-15 19:38:46,550 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 64 transitions, 291 flow [2021-10-15 19:38:46,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-15 19:38:46,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-10-15 19:38:46,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 538 transitions. [2021-10-15 19:38:46,553 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6767295597484276 [2021-10-15 19:38:46,553 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 538 transitions. [2021-10-15 19:38:46,554 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 538 transitions. [2021-10-15 19:38:46,554 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:38:46,554 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 538 transitions. [2021-10-15 19:38:46,557 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 107.6) internal successors, (538), 5 states have internal predecessors, (538), 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) [2021-10-15 19:38:46,562 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 159.0) internal successors, (954), 6 states have internal predecessors, (954), 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) [2021-10-15 19:38:46,563 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 159.0) internal successors, (954), 6 states have internal predecessors, (954), 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) [2021-10-15 19:38:46,563 INFO L186 Difference]: Start difference. First operand has 66 places, 81 transitions, 263 flow. Second operand 5 states and 538 transitions. [2021-10-15 19:38:46,563 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 64 transitions, 291 flow [2021-10-15 19:38:46,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 64 transitions, 285 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-15 19:38:46,570 INFO L242 Difference]: Finished difference. Result has 51 places, 0 transitions, 0 flow [2021-10-15 19:38:46,570 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=51, PETRI_TRANSITIONS=0} [2021-10-15 19:38:46,570 INFO L334 CegarLoopForPetriNet]: 103 programPoint places, -52 predicate places. [2021-10-15 19:38:46,571 INFO L470 AbstractCegarLoop]: Abstraction has has 51 places, 0 transitions, 0 flow [2021-10-15 19:38:46,571 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 102.6) internal successors, (513), 5 states have internal predecessors, (513), 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) [2021-10-15 19:38:46,574 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-15 19:38:46,574 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-15 19:38:46,575 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-15 19:38:46,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-15 19:38:46,580 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-15 19:38:46,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 07:38:46 BoogieIcfgContainer [2021-10-15 19:38:46,587 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-15 19:38:46,588 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-15 19:38:46,588 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-15 19:38:46,589 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-15 19:38:46,589 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:38:44" (3/4) ... [2021-10-15 19:38:46,593 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-15 19:38:46,622 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2021-10-15 19:38:46,623 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2021-10-15 19:38:46,625 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-10-15 19:38:46,626 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-15 19:38:46,627 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-15 19:38:46,628 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-15 19:38:46,629 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-15 19:38:46,770 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb0bf5ed-920f-46c9-a736-93d253b5b873/bin/uautomizer-hJ6jxDFKc3/witness.graphml [2021-10-15 19:38:46,771 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-15 19:38:46,773 INFO L168 Benchmark]: Toolchain (without parser) took 4014.86 ms. Allocated memory was 104.9 MB in the beginning and 146.8 MB in the end (delta: 41.9 MB). Free memory was 72.1 MB in the beginning and 96.3 MB in the end (delta: -24.2 MB). Peak memory consumption was 18.6 MB. Max. memory is 16.1 GB. [2021-10-15 19:38:46,774 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 104.9 MB. Free memory was 58.5 MB in the beginning and 58.4 MB in the end (delta: 54.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:38:46,774 INFO L168 Benchmark]: CACSL2BoogieTranslator took 556.55 ms. Allocated memory is still 104.9 MB. Free memory was 72.1 MB in the beginning and 71.1 MB in the end (delta: 943.7 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-15 19:38:46,775 INFO L168 Benchmark]: Boogie Procedure Inliner took 103.32 ms. Allocated memory is still 104.9 MB. Free memory was 71.1 MB in the beginning and 67.4 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-15 19:38:46,775 INFO L168 Benchmark]: Boogie Preprocessor took 44.39 ms. Allocated memory is still 104.9 MB. Free memory was 67.4 MB in the beginning and 64.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 19:38:46,776 INFO L168 Benchmark]: RCFGBuilder took 1182.49 ms. Allocated memory was 104.9 MB in the beginning and 146.8 MB in the end (delta: 41.9 MB). Free memory was 64.9 MB in the beginning and 96.7 MB in the end (delta: -31.8 MB). Peak memory consumption was 26.9 MB. Max. memory is 16.1 GB. [2021-10-15 19:38:46,776 INFO L168 Benchmark]: TraceAbstraction took 1935.70 ms. Allocated memory is still 146.8 MB. Free memory was 96.1 MB in the beginning and 105.8 MB in the end (delta: -9.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:38:46,777 INFO L168 Benchmark]: Witness Printer took 182.42 ms. Allocated memory is still 146.8 MB. Free memory was 105.8 MB in the beginning and 96.3 MB in the end (delta: 9.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-15 19:38:46,779 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 104.9 MB. Free memory was 58.5 MB in the beginning and 58.4 MB in the end (delta: 54.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 556.55 ms. Allocated memory is still 104.9 MB. Free memory was 72.1 MB in the beginning and 71.1 MB in the end (delta: 943.7 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 103.32 ms. Allocated memory is still 104.9 MB. Free memory was 71.1 MB in the beginning and 67.4 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 44.39 ms. Allocated memory is still 104.9 MB. Free memory was 67.4 MB in the beginning and 64.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1182.49 ms. Allocated memory was 104.9 MB in the beginning and 146.8 MB in the end (delta: 41.9 MB). Free memory was 64.9 MB in the beginning and 96.7 MB in the end (delta: -31.8 MB). Peak memory consumption was 26.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1935.70 ms. Allocated memory is still 146.8 MB. Free memory was 96.1 MB in the beginning and 105.8 MB in the end (delta: -9.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 182.42 ms. Allocated memory is still 146.8 MB. Free memory was 105.8 MB in the beginning and 96.3 MB in the end (delta: 9.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 595]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 595]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 595]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 107 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 10.8ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1859.9ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 831.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 75.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 12 SDtfs, 49 SDslu, 17 SDs, 0 SdLazy, 84 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 225.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 108.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=304occurred in iteration=0, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 36.9ms SsaConstructionTime, 248.9ms SatisfiabilityAnalysisTime, 440.7ms InterpolantComputationTime, 104 NumberOfCodeBlocks, 104 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 99 ConstructedInterpolants, 0 QuantifiedInterpolants, 230 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-15 19:38:46,819 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb0bf5ed-920f-46c9-a736-93d253b5b873/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...