./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1730e9-c4d2-4a90-bb61-aa95bebbcee5/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1730e9-c4d2-4a90-bb61-aa95bebbcee5/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1730e9-c4d2-4a90-bb61-aa95bebbcee5/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1730e9-c4d2-4a90-bb61-aa95bebbcee5/bin/uautomizer-UnR33cPsHg/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1730e9-c4d2-4a90-bb61-aa95bebbcee5/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1730e9-c4d2-4a90-bb61-aa95bebbcee5/bin/uautomizer-UnR33cPsHg --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 34d4dbed37590326da938d00ced1aba27649a4f6be46ad5130f0beeedcfaf5dd .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 08:59:17,268 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 08:59:17,271 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 08:59:17,314 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 08:59:17,315 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 08:59:17,317 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 08:59:17,319 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 08:59:17,323 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 08:59:17,326 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 08:59:17,327 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 08:59:17,329 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 08:59:17,331 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 08:59:17,332 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 08:59:17,333 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 08:59:17,336 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 08:59:17,338 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 08:59:17,339 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 08:59:17,341 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 08:59:17,344 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 08:59:17,348 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 08:59:17,351 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 08:59:17,353 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 08:59:17,355 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 08:59:17,357 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 08:59:17,361 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 08:59:17,362 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 08:59:17,363 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 08:59:17,364 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 08:59:17,365 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 08:59:17,367 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 08:59:17,368 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 08:59:17,369 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 08:59:17,370 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 08:59:17,372 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 08:59:17,373 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 08:59:17,374 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 08:59:17,375 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 08:59:17,376 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 08:59:17,376 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 08:59:17,378 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 08:59:17,379 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 08:59:17,381 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1730e9-c4d2-4a90-bb61-aa95bebbcee5/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 08:59:17,412 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 08:59:17,413 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 08:59:17,413 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 08:59:17,414 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 08:59:17,416 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 08:59:17,416 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 08:59:17,417 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 08:59:17,418 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 08:59:17,418 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 08:59:17,419 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 08:59:17,420 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 08:59:17,420 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 08:59:17,421 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 08:59:17,421 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 08:59:17,422 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 08:59:17,422 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 08:59:17,423 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 08:59:17,424 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 08:59:17,424 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 08:59:17,425 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 08:59:17,425 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 08:59:17,426 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 08:59:17,427 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:59:17,427 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 08:59:17,428 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 08:59:17,428 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 08:59:17,429 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 08:59:17,430 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 08:59:17,430 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 08:59:17,431 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 08:59:17,431 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 08:59:17,432 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 08:59:17,432 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_da1730e9-c4d2-4a90-bb61-aa95bebbcee5/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1730e9-c4d2-4a90-bb61-aa95bebbcee5/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 34d4dbed37590326da938d00ced1aba27649a4f6be46ad5130f0beeedcfaf5dd [2021-10-28 08:59:17,750 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 08:59:17,777 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 08:59:17,780 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 08:59:17,782 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 08:59:17,783 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 08:59:17,784 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1730e9-c4d2-4a90-bb61-aa95bebbcee5/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c [2021-10-28 08:59:17,865 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1730e9-c4d2-4a90-bb61-aa95bebbcee5/bin/uautomizer-UnR33cPsHg/data/163dd3403/0ccdffd638a14289b8e492a4ac9dddbe/FLAGb1cf6b79f [2021-10-28 08:59:18,538 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 08:59:18,539 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1730e9-c4d2-4a90-bb61-aa95bebbcee5/sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c [2021-10-28 08:59:18,555 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1730e9-c4d2-4a90-bb61-aa95bebbcee5/bin/uautomizer-UnR33cPsHg/data/163dd3403/0ccdffd638a14289b8e492a4ac9dddbe/FLAGb1cf6b79f [2021-10-28 08:59:18,795 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1730e9-c4d2-4a90-bb61-aa95bebbcee5/bin/uautomizer-UnR33cPsHg/data/163dd3403/0ccdffd638a14289b8e492a4ac9dddbe [2021-10-28 08:59:18,798 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 08:59:18,799 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 08:59:18,802 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 08:59:18,802 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 08:59:18,806 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 08:59:18,807 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:59:18" (1/1) ... [2021-10-28 08:59:18,809 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b6bb943 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:59:18, skipping insertion in model container [2021-10-28 08:59:18,809 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:59:18" (1/1) ... [2021-10-28 08:59:18,829 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 08:59:18,918 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 08:59:19,324 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_da1730e9-c4d2-4a90-bb61-aa95bebbcee5/sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c[15769,15782] [2021-10-28 08:59:19,359 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:59:19,370 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 08:59:19,511 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_da1730e9-c4d2-4a90-bb61-aa95bebbcee5/sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c[15769,15782] [2021-10-28 08:59:19,522 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:59:19,545 INFO L208 MainTranslator]: Completed translation [2021-10-28 08:59:19,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:59:19 WrapperNode [2021-10-28 08:59:19,546 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 08:59:19,548 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 08:59:19,548 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 08:59:19,549 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 08:59:19,558 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:59:19" (1/1) ... [2021-10-28 08:59:19,585 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:59:19" (1/1) ... [2021-10-28 08:59:19,641 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 08:59:19,643 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 08:59:19,643 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 08:59:19,643 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 08:59:19,657 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:59:19" (1/1) ... [2021-10-28 08:59:19,657 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:59:19" (1/1) ... [2021-10-28 08:59:19,676 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:59:19" (1/1) ... [2021-10-28 08:59:19,676 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:59:19" (1/1) ... [2021-10-28 08:59:19,689 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:59:19" (1/1) ... [2021-10-28 08:59:19,697 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:59:19" (1/1) ... [2021-10-28 08:59:19,701 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:59:19" (1/1) ... [2021-10-28 08:59:19,706 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 08:59:19,707 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 08:59:19,708 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 08:59:19,708 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 08:59:19,709 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:59:19" (1/1) ... [2021-10-28 08:59:19,720 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:59:19,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1730e9-c4d2-4a90-bb61-aa95bebbcee5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:59:19,752 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1730e9-c4d2-4a90-bb61-aa95bebbcee5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 08:59:19,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1730e9-c4d2-4a90-bb61-aa95bebbcee5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 08:59:19,820 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 08:59:19,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 08:59:19,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 08:59:19,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 08:59:20,937 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 08:59:20,938 INFO L299 CfgBuilder]: Removed 102 assume(true) statements. [2021-10-28 08:59:20,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:59:20 BoogieIcfgContainer [2021-10-28 08:59:20,941 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 08:59:20,947 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 08:59:20,947 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 08:59:20,951 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 08:59:20,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 08:59:18" (1/3) ... [2021-10-28 08:59:20,953 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@193d6586 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:59:20, skipping insertion in model container [2021-10-28 08:59:20,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:59:19" (2/3) ... [2021-10-28 08:59:20,954 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@193d6586 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:59:20, skipping insertion in model container [2021-10-28 08:59:20,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:59:20" (3/3) ... [2021-10-28 08:59:20,956 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product35.cil.c [2021-10-28 08:59:20,964 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 08:59:20,965 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-28 08:59:21,050 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 08:59:21,066 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 [2021-10-28 08:59:21,066 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-28 08:59:21,091 INFO L276 IsEmpty]: Start isEmpty. Operand has 84 states, 80 states have (on average 1.5875) internal successors, (127), 83 states have internal predecessors, (127), 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) [2021-10-28 08:59:21,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-28 08:59:21,100 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:59:21,101 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:59:21,102 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:59:21,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:59:21,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1673386384, now seen corresponding path program 1 times [2021-10-28 08:59:21,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:59:21,129 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96405013] [2021-10-28 08:59:21,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:59:21,130 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:59:21,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:59:21,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:59:21,532 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:59:21,532 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96405013] [2021-10-28 08:59:21,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96405013] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:59:21,533 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:59:21,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 08:59:21,536 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252576607] [2021-10-28 08:59:21,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 08:59:21,543 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:59:21,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 08:59:21,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 08:59:21,570 INFO L87 Difference]: Start difference. First operand has 84 states, 80 states have (on average 1.5875) internal successors, (127), 83 states have internal predecessors, (127), 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 9.0) internal successors, (18), 2 states have internal predecessors, (18), 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) [2021-10-28 08:59:21,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:59:21,602 INFO L93 Difference]: Finished difference Result 161 states and 246 transitions. [2021-10-28 08:59:21,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 08:59:21,604 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 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 18 [2021-10-28 08:59:21,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:59:21,617 INFO L225 Difference]: With dead ends: 161 [2021-10-28 08:59:21,617 INFO L226 Difference]: Without dead ends: 80 [2021-10-28 08:59:21,621 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 08:59:21,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2021-10-28 08:59:21,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2021-10-28 08:59:21,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 77 states have (on average 1.4935064935064934) internal successors, (115), 79 states have internal predecessors, (115), 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) [2021-10-28 08:59:21,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 115 transitions. [2021-10-28 08:59:21,690 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 115 transitions. Word has length 18 [2021-10-28 08:59:21,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:59:21,693 INFO L470 AbstractCegarLoop]: Abstraction has 80 states and 115 transitions. [2021-10-28 08:59:21,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 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) [2021-10-28 08:59:21,694 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 115 transitions. [2021-10-28 08:59:21,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-28 08:59:21,696 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:59:21,696 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:59:21,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 08:59:21,697 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:59:21,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:59:21,702 INFO L85 PathProgramCache]: Analyzing trace with hash 572864739, now seen corresponding path program 1 times [2021-10-28 08:59:21,702 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:59:21,702 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563782334] [2021-10-28 08:59:21,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:59:21,703 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:59:21,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:59:21,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:59:21,878 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:59:21,878 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563782334] [2021-10-28 08:59:21,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563782334] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:59:21,879 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:59:21,879 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:59:21,879 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260853115] [2021-10-28 08:59:21,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:59:21,884 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:59:21,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:59:21,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:59:21,887 INFO L87 Difference]: Start difference. First operand 80 states and 115 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 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) [2021-10-28 08:59:21,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:59:21,918 INFO L93 Difference]: Finished difference Result 80 states and 115 transitions. [2021-10-28 08:59:21,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:59:21,920 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 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 [2021-10-28 08:59:21,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:59:21,921 INFO L225 Difference]: With dead ends: 80 [2021-10-28 08:59:21,922 INFO L226 Difference]: Without dead ends: 38 [2021-10-28 08:59:21,924 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:59:21,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-10-28 08:59:21,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2021-10-28 08:59:21,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 37 states have (on average 1.4594594594594594) internal successors, (54), 37 states have internal predecessors, (54), 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) [2021-10-28 08:59:21,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 54 transitions. [2021-10-28 08:59:21,938 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 54 transitions. Word has length 19 [2021-10-28 08:59:21,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:59:21,939 INFO L470 AbstractCegarLoop]: Abstraction has 38 states and 54 transitions. [2021-10-28 08:59:21,940 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 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) [2021-10-28 08:59:21,940 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 54 transitions. [2021-10-28 08:59:21,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-28 08:59:21,944 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:59:21,944 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:59:21,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 08:59:21,946 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:59:21,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:59:21,953 INFO L85 PathProgramCache]: Analyzing trace with hash -2071848385, now seen corresponding path program 1 times [2021-10-28 08:59:21,954 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:59:21,954 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16176927] [2021-10-28 08:59:21,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:59:21,962 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:59:21,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:59:22,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:59:22,073 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:59:22,074 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16176927] [2021-10-28 08:59:22,078 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16176927] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:59:22,079 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:59:22,079 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 08:59:22,080 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259764189] [2021-10-28 08:59:22,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 08:59:22,082 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:59:22,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 08:59:22,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-28 08:59:22,085 INFO L87 Difference]: Start difference. First operand 38 states and 54 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 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) [2021-10-28 08:59:22,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:59:22,321 INFO L93 Difference]: Finished difference Result 124 states and 184 transitions. [2021-10-28 08:59:22,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 08:59:22,322 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 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 24 [2021-10-28 08:59:22,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:59:22,328 INFO L225 Difference]: With dead ends: 124 [2021-10-28 08:59:22,329 INFO L226 Difference]: Without dead ends: 93 [2021-10-28 08:59:22,329 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-28 08:59:22,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2021-10-28 08:59:22,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 58. [2021-10-28 08:59:22,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 57 states have (on average 1.4912280701754386) internal successors, (85), 57 states have internal predecessors, (85), 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) [2021-10-28 08:59:22,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 85 transitions. [2021-10-28 08:59:22,347 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 85 transitions. Word has length 24 [2021-10-28 08:59:22,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:59:22,349 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 85 transitions. [2021-10-28 08:59:22,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 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) [2021-10-28 08:59:22,350 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 85 transitions. [2021-10-28 08:59:22,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-28 08:59:22,352 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:59:22,352 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:59:22,352 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 08:59:22,353 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:59:22,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:59:22,354 INFO L85 PathProgramCache]: Analyzing trace with hash 343514617, now seen corresponding path program 1 times [2021-10-28 08:59:22,354 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:59:22,355 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121470125] [2021-10-28 08:59:22,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:59:22,355 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:59:22,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:59:22,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:59:22,462 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:59:22,463 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121470125] [2021-10-28 08:59:22,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121470125] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:59:22,468 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:59:22,469 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 08:59:22,469 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903744564] [2021-10-28 08:59:22,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:59:22,470 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:59:22,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:59:22,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:59:22,472 INFO L87 Difference]: Start difference. First operand 58 states and 85 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 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) [2021-10-28 08:59:22,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:59:22,524 INFO L93 Difference]: Finished difference Result 131 states and 195 transitions. [2021-10-28 08:59:22,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:59:22,525 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 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 25 [2021-10-28 08:59:22,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:59:22,528 INFO L225 Difference]: With dead ends: 131 [2021-10-28 08:59:22,529 INFO L226 Difference]: Without dead ends: 80 [2021-10-28 08:59:22,531 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:59:22,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2021-10-28 08:59:22,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 78. [2021-10-28 08:59:22,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 77 states have (on average 1.4545454545454546) internal successors, (112), 77 states have internal predecessors, (112), 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) [2021-10-28 08:59:22,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 112 transitions. [2021-10-28 08:59:22,557 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 112 transitions. Word has length 25 [2021-10-28 08:59:22,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:59:22,558 INFO L470 AbstractCegarLoop]: Abstraction has 78 states and 112 transitions. [2021-10-28 08:59:22,559 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 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) [2021-10-28 08:59:22,559 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 112 transitions. [2021-10-28 08:59:22,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-28 08:59:22,562 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:59:22,563 INFO L513 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] [2021-10-28 08:59:22,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-28 08:59:22,563 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:59:22,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:59:22,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1750340408, now seen corresponding path program 1 times [2021-10-28 08:59:22,565 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:59:22,565 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712069566] [2021-10-28 08:59:22,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:59:22,566 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:59:22,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:59:22,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:59:22,678 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:59:22,678 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712069566] [2021-10-28 08:59:22,679 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712069566] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:59:22,679 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:59:22,679 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 08:59:22,679 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982725629] [2021-10-28 08:59:22,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 08:59:22,680 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:59:22,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 08:59:22,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:59:22,682 INFO L87 Difference]: Start difference. First operand 78 states and 112 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 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) [2021-10-28 08:59:22,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:59:22,793 INFO L93 Difference]: Finished difference Result 361 states and 530 transitions. [2021-10-28 08:59:22,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 08:59:22,794 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 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 27 [2021-10-28 08:59:22,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:59:22,797 INFO L225 Difference]: With dead ends: 361 [2021-10-28 08:59:22,797 INFO L226 Difference]: Without dead ends: 290 [2021-10-28 08:59:22,803 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-28 08:59:22,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2021-10-28 08:59:22,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 138. [2021-10-28 08:59:22,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 137 states have (on average 1.4233576642335766) internal successors, (195), 137 states have internal predecessors, (195), 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) [2021-10-28 08:59:22,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 195 transitions. [2021-10-28 08:59:22,850 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 195 transitions. Word has length 27 [2021-10-28 08:59:22,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:59:22,850 INFO L470 AbstractCegarLoop]: Abstraction has 138 states and 195 transitions. [2021-10-28 08:59:22,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 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) [2021-10-28 08:59:22,851 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 195 transitions. [2021-10-28 08:59:22,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-28 08:59:22,853 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:59:22,853 INFO L513 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] [2021-10-28 08:59:22,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-28 08:59:22,853 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:59:22,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:59:22,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1110481728, now seen corresponding path program 1 times [2021-10-28 08:59:22,854 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:59:22,855 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417194522] [2021-10-28 08:59:22,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:59:22,855 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:59:22,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:59:22,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:59:22,927 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:59:22,928 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417194522] [2021-10-28 08:59:22,928 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417194522] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:59:22,928 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:59:22,928 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 08:59:22,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410266720] [2021-10-28 08:59:22,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 08:59:22,929 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:59:22,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 08:59:22,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:59:22,930 INFO L87 Difference]: Start difference. First operand 138 states and 195 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 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) [2021-10-28 08:59:23,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:59:23,056 INFO L93 Difference]: Finished difference Result 499 states and 711 transitions. [2021-10-28 08:59:23,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 08:59:23,056 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 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 28 [2021-10-28 08:59:23,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:59:23,060 INFO L225 Difference]: With dead ends: 499 [2021-10-28 08:59:23,060 INFO L226 Difference]: Without dead ends: 368 [2021-10-28 08:59:23,061 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-28 08:59:23,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2021-10-28 08:59:23,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 136. [2021-10-28 08:59:23,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 135 states have (on average 1.4) internal successors, (189), 135 states have internal predecessors, (189), 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) [2021-10-28 08:59:23,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 189 transitions. [2021-10-28 08:59:23,081 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 189 transitions. Word has length 28 [2021-10-28 08:59:23,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:59:23,081 INFO L470 AbstractCegarLoop]: Abstraction has 136 states and 189 transitions. [2021-10-28 08:59:23,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 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) [2021-10-28 08:59:23,082 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 189 transitions. [2021-10-28 08:59:23,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-28 08:59:23,084 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:59:23,084 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:59:23,084 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-28 08:59:23,085 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:59:23,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:59:23,086 INFO L85 PathProgramCache]: Analyzing trace with hash -2071146496, now seen corresponding path program 1 times [2021-10-28 08:59:23,086 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:59:23,086 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455961200] [2021-10-28 08:59:23,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:59:23,087 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:59:23,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:59:23,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:59:23,155 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:59:23,155 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455961200] [2021-10-28 08:59:23,155 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455961200] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:59:23,156 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:59:23,156 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 08:59:23,156 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268036710] [2021-10-28 08:59:23,157 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 08:59:23,157 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:59:23,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 08:59:23,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:59:23,158 INFO L87 Difference]: Start difference. First operand 136 states and 189 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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) [2021-10-28 08:59:23,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:59:23,225 INFO L93 Difference]: Finished difference Result 401 states and 556 transitions. [2021-10-28 08:59:23,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 08:59:23,226 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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 32 [2021-10-28 08:59:23,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:59:23,229 INFO L225 Difference]: With dead ends: 401 [2021-10-28 08:59:23,229 INFO L226 Difference]: Without dead ends: 272 [2021-10-28 08:59:23,230 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-28 08:59:23,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2021-10-28 08:59:23,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 142. [2021-10-28 08:59:23,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 141 states have (on average 1.3829787234042554) internal successors, (195), 141 states have internal predecessors, (195), 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) [2021-10-28 08:59:23,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 195 transitions. [2021-10-28 08:59:23,250 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 195 transitions. Word has length 32 [2021-10-28 08:59:23,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:59:23,251 INFO L470 AbstractCegarLoop]: Abstraction has 142 states and 195 transitions. [2021-10-28 08:59:23,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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) [2021-10-28 08:59:23,251 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 195 transitions. [2021-10-28 08:59:23,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-28 08:59:23,253 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:59:23,253 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:59:23,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-28 08:59:23,254 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:59:23,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:59:23,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1370081918, now seen corresponding path program 1 times [2021-10-28 08:59:23,255 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:59:23,255 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249470024] [2021-10-28 08:59:23,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:59:23,256 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:59:23,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:59:23,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:59:23,315 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:59:23,315 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249470024] [2021-10-28 08:59:23,315 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249470024] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:59:23,315 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:59:23,316 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 08:59:23,316 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173527629] [2021-10-28 08:59:23,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 08:59:23,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:59:23,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 08:59:23,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:59:23,318 INFO L87 Difference]: Start difference. First operand 142 states and 195 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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) [2021-10-28 08:59:23,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:59:23,366 INFO L93 Difference]: Finished difference Result 361 states and 495 transitions. [2021-10-28 08:59:23,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 08:59:23,367 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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 32 [2021-10-28 08:59:23,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:59:23,369 INFO L225 Difference]: With dead ends: 361 [2021-10-28 08:59:23,369 INFO L226 Difference]: Without dead ends: 226 [2021-10-28 08:59:23,370 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:59:23,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2021-10-28 08:59:23,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 146. [2021-10-28 08:59:23,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 145 states have (on average 1.3724137931034484) internal successors, (199), 145 states have internal predecessors, (199), 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) [2021-10-28 08:59:23,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 199 transitions. [2021-10-28 08:59:23,398 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 199 transitions. Word has length 32 [2021-10-28 08:59:23,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:59:23,399 INFO L470 AbstractCegarLoop]: Abstraction has 146 states and 199 transitions. [2021-10-28 08:59:23,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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) [2021-10-28 08:59:23,400 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 199 transitions. [2021-10-28 08:59:23,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-28 08:59:23,401 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:59:23,401 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:59:23,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-28 08:59:23,402 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:59:23,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:59:23,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1956887932, now seen corresponding path program 1 times [2021-10-28 08:59:23,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:59:23,403 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251672446] [2021-10-28 08:59:23,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:59:23,404 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:59:23,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:59:23,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:59:23,453 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:59:23,453 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251672446] [2021-10-28 08:59:23,454 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251672446] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:59:23,454 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:59:23,454 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 08:59:23,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009459346] [2021-10-28 08:59:23,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:59:23,455 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:59:23,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:59:23,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:59:23,457 INFO L87 Difference]: Start difference. First operand 146 states and 199 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 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) [2021-10-28 08:59:23,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:59:23,499 INFO L93 Difference]: Finished difference Result 371 states and 505 transitions. [2021-10-28 08:59:23,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:59:23,500 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 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 32 [2021-10-28 08:59:23,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:59:23,502 INFO L225 Difference]: With dead ends: 371 [2021-10-28 08:59:23,503 INFO L226 Difference]: Without dead ends: 232 [2021-10-28 08:59:23,503 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:59:23,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2021-10-28 08:59:23,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 232. [2021-10-28 08:59:23,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 231 states have (on average 1.329004329004329) internal successors, (307), 231 states have internal predecessors, (307), 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) [2021-10-28 08:59:23,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 307 transitions. [2021-10-28 08:59:23,537 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 307 transitions. Word has length 32 [2021-10-28 08:59:23,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:59:23,537 INFO L470 AbstractCegarLoop]: Abstraction has 232 states and 307 transitions. [2021-10-28 08:59:23,538 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 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) [2021-10-28 08:59:23,538 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 307 transitions. [2021-10-28 08:59:23,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-28 08:59:23,539 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:59:23,539 INFO L513 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, 1] [2021-10-28 08:59:23,540 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-28 08:59:23,540 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:59:23,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:59:23,541 INFO L85 PathProgramCache]: Analyzing trace with hash 875175876, now seen corresponding path program 1 times [2021-10-28 08:59:23,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:59:23,541 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279710160] [2021-10-28 08:59:23,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:59:23,542 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:59:23,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:59:23,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:59:23,654 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:59:23,654 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279710160] [2021-10-28 08:59:23,654 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279710160] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:59:23,654 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:59:23,655 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:59:23,655 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702681759] [2021-10-28 08:59:23,655 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:59:23,655 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:59:23,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:59:23,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:59:23,657 INFO L87 Difference]: Start difference. First operand 232 states and 307 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2021-10-28 08:59:23,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:59:23,724 INFO L93 Difference]: Finished difference Result 315 states and 418 transitions. [2021-10-28 08:59:23,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:59:23,725 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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 33 [2021-10-28 08:59:23,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:59:23,728 INFO L225 Difference]: With dead ends: 315 [2021-10-28 08:59:23,728 INFO L226 Difference]: Without dead ends: 313 [2021-10-28 08:59:23,728 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:59:23,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2021-10-28 08:59:23,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 265. [2021-10-28 08:59:23,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 264 states have (on average 1.3484848484848484) internal successors, (356), 264 states have internal predecessors, (356), 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) [2021-10-28 08:59:23,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 356 transitions. [2021-10-28 08:59:23,769 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 356 transitions. Word has length 33 [2021-10-28 08:59:23,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:59:23,769 INFO L470 AbstractCegarLoop]: Abstraction has 265 states and 356 transitions. [2021-10-28 08:59:23,770 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2021-10-28 08:59:23,770 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 356 transitions. [2021-10-28 08:59:23,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-10-28 08:59:23,771 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:59:23,772 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:59:23,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-28 08:59:23,772 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:59:23,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:59:23,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1646221848, now seen corresponding path program 1 times [2021-10-28 08:59:23,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:59:23,773 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605799574] [2021-10-28 08:59:23,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:59:23,774 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:59:23,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:59:23,873 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:59:23,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:59:24,055 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:59:24,055 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 08:59:24,056 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:59:24,059 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:59:24,059 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:59:24,060 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-28 08:59:24,064 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:59:24,068 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 08:59:24,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 08:59:24 BoogieIcfgContainer [2021-10-28 08:59:24,269 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 08:59:24,270 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 08:59:24,270 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 08:59:24,270 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 08:59:24,271 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:59:20" (3/4) ... [2021-10-28 08:59:24,273 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-28 08:59:24,429 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1730e9-c4d2-4a90-bb61-aa95bebbcee5/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 08:59:24,430 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 08:59:24,432 INFO L168 Benchmark]: Toolchain (without parser) took 5631.27 ms. Allocated memory was 104.9 MB in the beginning and 148.9 MB in the end (delta: 44.0 MB). Free memory was 67.3 MB in the beginning and 84.8 MB in the end (delta: -17.5 MB). Peak memory consumption was 26.2 MB. Max. memory is 16.1 GB. [2021-10-28 08:59:24,432 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 104.9 MB. Free memory is still 84.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:59:24,433 INFO L168 Benchmark]: CACSL2BoogieTranslator took 745.37 ms. Allocated memory is still 104.9 MB. Free memory was 67.1 MB in the beginning and 72.3 MB in the end (delta: -5.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-28 08:59:24,434 INFO L168 Benchmark]: Boogie Procedure Inliner took 93.92 ms. Allocated memory is still 104.9 MB. Free memory was 72.3 MB in the beginning and 69.4 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:59:24,434 INFO L168 Benchmark]: Boogie Preprocessor took 64.12 ms. Allocated memory is still 104.9 MB. Free memory was 69.4 MB in the beginning and 67.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:59:24,435 INFO L168 Benchmark]: RCFGBuilder took 1233.58 ms. Allocated memory was 104.9 MB in the beginning and 148.9 MB in the end (delta: 44.0 MB). Free memory was 67.0 MB in the beginning and 110.4 MB in the end (delta: -43.4 MB). Peak memory consumption was 36.3 MB. Max. memory is 16.1 GB. [2021-10-28 08:59:24,435 INFO L168 Benchmark]: TraceAbstraction took 3322.82 ms. Allocated memory is still 148.9 MB. Free memory was 110.4 MB in the beginning and 105.8 MB in the end (delta: 4.6 MB). Peak memory consumption was 73.8 MB. Max. memory is 16.1 GB. [2021-10-28 08:59:24,435 INFO L168 Benchmark]: Witness Printer took 159.87 ms. Allocated memory is still 148.9 MB. Free memory was 105.8 MB in the beginning and 84.8 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2021-10-28 08:59:24,438 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 104.9 MB. Free memory is still 84.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 745.37 ms. Allocated memory is still 104.9 MB. Free memory was 67.1 MB in the beginning and 72.3 MB in the end (delta: -5.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 93.92 ms. Allocated memory is still 104.9 MB. Free memory was 72.3 MB in the beginning and 69.4 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 64.12 ms. Allocated memory is still 104.9 MB. Free memory was 69.4 MB in the beginning and 67.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1233.58 ms. Allocated memory was 104.9 MB in the beginning and 148.9 MB in the end (delta: 44.0 MB). Free memory was 67.0 MB in the beginning and 110.4 MB in the end (delta: -43.4 MB). Peak memory consumption was 36.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3322.82 ms. Allocated memory is still 148.9 MB. Free memory was 110.4 MB in the beginning and 105.8 MB in the end (delta: 4.6 MB). Peak memory consumption was 73.8 MB. Max. memory is 16.1 GB. * Witness Printer took 159.87 ms. Allocated memory is still 148.9 MB. Free memory was 105.8 MB in the beginning and 84.8 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 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, 0.0s 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: 746]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L426] int pumpRunning = 0; [L427] int systemActive = 1; [L665] int methAndRunningLastTime ; [L751] int cleanupTimeShifts = 4; [L849] int waterLevel = 1; [L850] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L825] int retValue_acc ; [L826] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L733] int retValue_acc ; [L736] retValue_acc = 1 [L737] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L832] tmp = valid_product() [L834] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L670] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L598] int splverifierCounter ; [L599] int tmp ; [L600] int tmp___0 ; [L601] int tmp___1 ; [L602] int tmp___2 ; [L605] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L607] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L609] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L615] tmp = __VERIFIER_nondet_int() [L617] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L867] COND TRUE waterLevel < 2 [L868] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L625] tmp___0 = __VERIFIER_nondet_int() [L627] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L879] COND FALSE !(\read(methaneLevelCritical)) [L882] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L635] tmp___2 = __VERIFIER_nondet_int() [L637] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L434] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L441] COND TRUE \read(systemActive) [L463] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L466] COND TRUE ! pumpRunning [L560] int retValue_acc ; [L561] int tmp ; [L562] int tmp___0 ; [L929] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L932] COND FALSE !(waterLevel < 2) [L936] retValue_acc = 0 [L937] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L566] tmp = isHighWaterSensorDry() [L568] COND FALSE !(\read(tmp)) [L571] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L573] retValue_acc = tmp___0 [L574] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L468] tmp = isHighWaterLevel() [L470] COND TRUE \read(tmp) [L491] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L675] int tmp ; [L676] int tmp___0 ; [L888] int retValue_acc ; [L891] retValue_acc = methaneLevelCritical [L892] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L680] tmp = isMethaneLevelCritical() [L682] COND TRUE \read(tmp) [L515] int retValue_acc ; [L518] retValue_acc = pumpRunning [L519] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L684] tmp___0 = isPumpRunning() [L686] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L687] COND FALSE !(\read(methAndRunningLastTime)) [L692] methAndRunningLastTime = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L607] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L609] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L615] tmp = __VERIFIER_nondet_int() [L617] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L625] tmp___0 = __VERIFIER_nondet_int() [L627] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L635] tmp___2 = __VERIFIER_nondet_int() [L637] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L434] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L855] COND TRUE waterLevel > 0 [L856] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L441] COND TRUE \read(systemActive) [L463] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L466] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L675] int tmp ; [L676] int tmp___0 ; [L888] int retValue_acc ; [L891] retValue_acc = methaneLevelCritical [L892] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L680] tmp = isMethaneLevelCritical() [L682] COND TRUE \read(tmp) [L515] int retValue_acc ; [L518] retValue_acc = pumpRunning [L519] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L684] tmp___0 = isPumpRunning() [L686] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L687] COND TRUE \read(methAndRunningLastTime) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L746] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - UnprovableResult [Line: 746]: 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: 746]: 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, 84 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 3.0s, OverallIterations: 11, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 710 SDtfs, 847 SDslu, 1184 SDs, 0 SdLazy, 128 SolverSat, 26 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=265occurred in iteration=10, InterpolantAutomatonStates: 47, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 679 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 321 NumberOfCodeBlocks, 321 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 260 ConstructedInterpolants, 0 QuantifiedInterpolants, 536 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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! [2021-10-28 08:59:24,502 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1730e9-c4d2-4a90-bb61-aa95bebbcee5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...