./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product44.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_cd5b03cb-3a93-4157-9fde-3cb68e384d1c/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5b03cb-3a93-4157-9fde-3cb68e384d1c/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5b03cb-3a93-4157-9fde-3cb68e384d1c/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5b03cb-3a93-4157-9fde-3cb68e384d1c/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product44.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5b03cb-3a93-4157-9fde-3cb68e384d1c/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5b03cb-3a93-4157-9fde-3cb68e384d1c/bin/uautomizer-GMMbpWq8iD --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 471ad46a1662a2ee36763023473e29e175f1086d40bbf36d792af661871bf09e .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 23:43:00,909 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:43:00,913 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:43:00,981 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:43:00,982 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:43:00,988 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:43:00,993 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:43:00,999 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:43:01,003 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:43:01,013 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:43:01,014 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:43:01,016 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:43:01,017 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:43:01,018 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:43:01,020 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:43:01,028 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:43:01,029 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:43:01,031 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:43:01,034 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:43:01,037 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:43:01,039 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:43:01,041 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:43:01,043 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:43:01,044 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:43:01,049 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:43:01,050 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:43:01,050 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:43:01,052 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:43:01,053 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:43:01,054 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:43:01,055 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:43:01,056 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:43:01,057 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:43:01,058 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:43:01,060 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:43:01,060 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:43:01,061 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:43:01,062 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:43:01,062 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:43:01,063 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:43:01,064 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:43:01,065 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5b03cb-3a93-4157-9fde-3cb68e384d1c/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 23:43:01,095 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:43:01,096 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:43:01,096 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:43:01,096 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:43:01,098 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:43:01,098 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:43:01,098 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:43:01,099 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:43:01,099 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:43:01,099 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:43:01,099 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:43:01,100 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:43:01,100 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 23:43:01,100 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:43:01,100 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 23:43:01,100 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:43:01,101 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:43:01,101 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:43:01,101 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 23:43:01,101 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:43:01,102 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:43:01,102 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:43:01,102 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:43:01,103 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:43:01,103 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:43:01,103 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 23:43:01,103 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:43:01,103 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:43:01,104 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 23:43:01,104 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 23:43:01,104 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 23:43:01,104 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:43:01,105 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_cd5b03cb-3a93-4157-9fde-3cb68e384d1c/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5b03cb-3a93-4157-9fde-3cb68e384d1c/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 471ad46a1662a2ee36763023473e29e175f1086d40bbf36d792af661871bf09e [2021-10-28 23:43:01,441 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:43:01,494 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:43:01,497 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:43:01,499 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:43:01,500 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:43:01,501 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5b03cb-3a93-4157-9fde-3cb68e384d1c/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/product-lines/minepump_spec2_product44.cil.c [2021-10-28 23:43:01,581 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5b03cb-3a93-4157-9fde-3cb68e384d1c/bin/uautomizer-GMMbpWq8iD/data/85b1c62e9/4372dcbb43544a5b84e72562aa14e9c0/FLAG22ab7849a [2021-10-28 23:43:02,232 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:43:02,233 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5b03cb-3a93-4157-9fde-3cb68e384d1c/sv-benchmarks/c/product-lines/minepump_spec2_product44.cil.c [2021-10-28 23:43:02,249 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5b03cb-3a93-4157-9fde-3cb68e384d1c/bin/uautomizer-GMMbpWq8iD/data/85b1c62e9/4372dcbb43544a5b84e72562aa14e9c0/FLAG22ab7849a [2021-10-28 23:43:02,510 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5b03cb-3a93-4157-9fde-3cb68e384d1c/bin/uautomizer-GMMbpWq8iD/data/85b1c62e9/4372dcbb43544a5b84e72562aa14e9c0 [2021-10-28 23:43:02,515 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:43:02,519 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:43:02,522 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:43:02,522 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:43:02,529 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:43:02,530 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:43:02" (1/1) ... [2021-10-28 23:43:02,533 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65aeb962 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:43:02, skipping insertion in model container [2021-10-28 23:43:02,534 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:43:02" (1/1) ... [2021-10-28 23:43:02,544 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:43:02,635 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:43:02,930 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_cd5b03cb-3a93-4157-9fde-3cb68e384d1c/sv-benchmarks/c/product-lines/minepump_spec2_product44.cil.c[1605,1618] [2021-10-28 23:43:03,143 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:43:03,169 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:43:03,205 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_cd5b03cb-3a93-4157-9fde-3cb68e384d1c/sv-benchmarks/c/product-lines/minepump_spec2_product44.cil.c[1605,1618] [2021-10-28 23:43:03,343 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:43:03,371 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:43:03,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:43:03 WrapperNode [2021-10-28 23:43:03,372 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:43:03,373 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:43:03,374 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:43:03,374 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:43:03,384 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:43:03" (1/1) ... [2021-10-28 23:43:03,423 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:43:03" (1/1) ... [2021-10-28 23:43:03,486 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:43:03,487 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:43:03,487 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:43:03,487 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:43:03,499 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:43:03" (1/1) ... [2021-10-28 23:43:03,499 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:43:03" (1/1) ... [2021-10-28 23:43:03,505 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:43:03" (1/1) ... [2021-10-28 23:43:03,505 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:43:03" (1/1) ... [2021-10-28 23:43:03,520 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:43:03" (1/1) ... [2021-10-28 23:43:03,529 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:43:03" (1/1) ... [2021-10-28 23:43:03,533 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:43:03" (1/1) ... [2021-10-28 23:43:03,540 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:43:03,541 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:43:03,541 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:43:03,541 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:43:03,543 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:43:03" (1/1) ... [2021-10-28 23:43:03,552 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:43:03,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5b03cb-3a93-4157-9fde-3cb68e384d1c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:43:03,589 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5b03cb-3a93-4157-9fde-3cb68e384d1c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:43:03,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5b03cb-3a93-4157-9fde-3cb68e384d1c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:43:03,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:43:03,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:43:03,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:43:03,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:43:04,722 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:43:04,723 INFO L299 CfgBuilder]: Removed 122 assume(true) statements. [2021-10-28 23:43:04,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:43:04 BoogieIcfgContainer [2021-10-28 23:43:04,726 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:43:04,728 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:43:04,728 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:43:04,733 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:43:04,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:43:02" (1/3) ... [2021-10-28 23:43:04,735 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5430b008 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:43:04, skipping insertion in model container [2021-10-28 23:43:04,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:43:03" (2/3) ... [2021-10-28 23:43:04,736 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5430b008 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:43:04, skipping insertion in model container [2021-10-28 23:43:04,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:43:04" (3/3) ... [2021-10-28 23:43:04,739 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product44.cil.c [2021-10-28 23:43:04,748 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:43:04,749 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-28 23:43:04,831 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:43:04,844 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 23:43:04,844 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-28 23:43:04,871 INFO L276 IsEmpty]: Start isEmpty. Operand has 93 states, 89 states have (on average 1.5617977528089888) internal successors, (139), 92 states have internal predecessors, (139), 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 23:43:04,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-28 23:43:04,880 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:43:04,880 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 23:43:04,881 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 23:43:04,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:43:04,889 INFO L85 PathProgramCache]: Analyzing trace with hash -732978716, now seen corresponding path program 1 times [2021-10-28 23:43:04,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:43:04,905 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815922194] [2021-10-28 23:43:04,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:43:04,907 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:43:05,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:43:05,408 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 23:43:05,409 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:43:05,409 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815922194] [2021-10-28 23:43:05,410 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815922194] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:43:05,410 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:43:05,410 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 23:43:05,413 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570698147] [2021-10-28 23:43:05,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 23:43:05,420 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:43:05,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 23:43:05,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 23:43:05,466 INFO L87 Difference]: Start difference. First operand has 93 states, 89 states have (on average 1.5617977528089888) internal successors, (139), 92 states have internal predecessors, (139), 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 23:43:05,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:43:05,527 INFO L93 Difference]: Finished difference Result 179 states and 270 transitions. [2021-10-28 23:43:05,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 23:43:05,529 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 23:43:05,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:43:05,544 INFO L225 Difference]: With dead ends: 179 [2021-10-28 23:43:05,545 INFO L226 Difference]: Without dead ends: 89 [2021-10-28 23:43:05,550 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 23:43:05,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2021-10-28 23:43:05,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2021-10-28 23:43:05,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 86 states have (on average 1.4767441860465116) internal successors, (127), 88 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 23:43:05,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 127 transitions. [2021-10-28 23:43:05,628 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 127 transitions. Word has length 18 [2021-10-28 23:43:05,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:43:05,629 INFO L470 AbstractCegarLoop]: Abstraction has 89 states and 127 transitions. [2021-10-28 23:43:05,629 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 23:43:05,629 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 127 transitions. [2021-10-28 23:43:05,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-28 23:43:05,631 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:43:05,631 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 23:43:05,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 23:43:05,632 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 23:43:05,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:43:05,633 INFO L85 PathProgramCache]: Analyzing trace with hash -951814685, now seen corresponding path program 1 times [2021-10-28 23:43:05,633 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:43:05,634 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93659311] [2021-10-28 23:43:05,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:43:05,634 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:43:05,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:43:05,821 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 23:43:05,821 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:43:05,822 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93659311] [2021-10-28 23:43:05,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93659311] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:43:05,822 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:43:05,823 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:43:05,823 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752655623] [2021-10-28 23:43:05,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:43:05,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:43:05,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:43:05,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:43:05,827 INFO L87 Difference]: Start difference. First operand 89 states and 127 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 23:43:05,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:43:05,858 INFO L93 Difference]: Finished difference Result 89 states and 127 transitions. [2021-10-28 23:43:05,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:43:05,860 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 23:43:05,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:43:05,862 INFO L225 Difference]: With dead ends: 89 [2021-10-28 23:43:05,862 INFO L226 Difference]: Without dead ends: 41 [2021-10-28 23:43:05,864 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 23:43:05,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-10-28 23:43:05,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2021-10-28 23:43:05,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 40 states have (on average 1.45) internal successors, (58), 40 states have internal predecessors, (58), 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 23:43:05,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 58 transitions. [2021-10-28 23:43:05,878 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 58 transitions. Word has length 19 [2021-10-28 23:43:05,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:43:05,879 INFO L470 AbstractCegarLoop]: Abstraction has 41 states and 58 transitions. [2021-10-28 23:43:05,879 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 23:43:05,879 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 58 transitions. [2021-10-28 23:43:05,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-28 23:43:05,880 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:43:05,881 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 23:43:05,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 23:43:05,881 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 23:43:05,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:43:05,882 INFO L85 PathProgramCache]: Analyzing trace with hash -2025304256, now seen corresponding path program 1 times [2021-10-28 23:43:05,882 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:43:05,883 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008476073] [2021-10-28 23:43:05,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:43:05,883 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:43:05,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:43:06,028 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 23:43:06,029 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:43:06,030 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008476073] [2021-10-28 23:43:06,034 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008476073] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:43:06,035 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:43:06,035 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:43:06,036 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153090355] [2021-10-28 23:43:06,037 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:43:06,038 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:43:06,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:43:06,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:43:06,044 INFO L87 Difference]: Start difference. First operand 41 states and 58 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 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 23:43:06,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:43:06,105 INFO L93 Difference]: Finished difference Result 109 states and 160 transitions. [2021-10-28 23:43:06,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:43:06,106 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 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 23:43:06,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:43:06,108 INFO L225 Difference]: With dead ends: 109 [2021-10-28 23:43:06,108 INFO L226 Difference]: Without dead ends: 75 [2021-10-28 23:43:06,109 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 23:43:06,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-10-28 23:43:06,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 71. [2021-10-28 23:43:06,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 70 states have (on average 1.4857142857142858) internal successors, (104), 70 states have internal predecessors, (104), 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 23:43:06,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 104 transitions. [2021-10-28 23:43:06,121 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 104 transitions. Word has length 24 [2021-10-28 23:43:06,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:43:06,122 INFO L470 AbstractCegarLoop]: Abstraction has 71 states and 104 transitions. [2021-10-28 23:43:06,122 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 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 23:43:06,122 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 104 transitions. [2021-10-28 23:43:06,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-28 23:43:06,124 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:43:06,124 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 23:43:06,125 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 23:43:06,125 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 23:43:06,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:43:06,126 INFO L85 PathProgramCache]: Analyzing trace with hash 193545241, now seen corresponding path program 1 times [2021-10-28 23:43:06,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:43:06,126 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248436001] [2021-10-28 23:43:06,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:43:06,127 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:43:06,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:43:06,190 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 23:43:06,190 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:43:06,190 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248436001] [2021-10-28 23:43:06,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248436001] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:43:06,191 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:43:06,191 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 23:43:06,192 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208696772] [2021-10-28 23:43:06,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:43:06,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:43:06,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:43:06,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:43:06,194 INFO L87 Difference]: Start difference. First operand 71 states and 104 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 23:43:06,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:43:06,231 INFO L93 Difference]: Finished difference Result 178 states and 267 transitions. [2021-10-28 23:43:06,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:43:06,232 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 23:43:06,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:43:06,234 INFO L225 Difference]: With dead ends: 178 [2021-10-28 23:43:06,234 INFO L226 Difference]: Without dead ends: 114 [2021-10-28 23:43:06,235 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 23:43:06,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2021-10-28 23:43:06,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 112. [2021-10-28 23:43:06,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 111 states have (on average 1.4774774774774775) internal successors, (164), 111 states have internal predecessors, (164), 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 23:43:06,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 164 transitions. [2021-10-28 23:43:06,264 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 164 transitions. Word has length 25 [2021-10-28 23:43:06,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:43:06,265 INFO L470 AbstractCegarLoop]: Abstraction has 112 states and 164 transitions. [2021-10-28 23:43:06,266 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 23:43:06,266 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 164 transitions. [2021-10-28 23:43:06,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-28 23:43:06,270 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:43:06,270 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 23:43:06,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-28 23:43:06,271 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:43:06,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:43:06,273 INFO L85 PathProgramCache]: Analyzing trace with hash 433385865, now seen corresponding path program 1 times [2021-10-28 23:43:06,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:43:06,274 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880619669] [2021-10-28 23:43:06,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:43:06,275 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:43:06,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:43:06,405 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 23:43:06,406 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:43:06,406 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880619669] [2021-10-28 23:43:06,407 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880619669] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:43:06,409 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:43:06,410 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 23:43:06,410 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629626286] [2021-10-28 23:43:06,411 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:43:06,411 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:43:06,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:43:06,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:43:06,412 INFO L87 Difference]: Start difference. First operand 112 states and 164 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 23:43:06,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:43:06,567 INFO L93 Difference]: Finished difference Result 544 states and 809 transitions. [2021-10-28 23:43:06,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 23:43:06,568 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 23:43:06,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:43:06,574 INFO L225 Difference]: With dead ends: 544 [2021-10-28 23:43:06,574 INFO L226 Difference]: Without dead ends: 439 [2021-10-28 23:43:06,578 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 23:43:06,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2021-10-28 23:43:06,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 203. [2021-10-28 23:43:06,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 202 states have (on average 1.4455445544554455) internal successors, (292), 202 states have internal predecessors, (292), 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 23:43:06,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 292 transitions. [2021-10-28 23:43:06,661 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 292 transitions. Word has length 27 [2021-10-28 23:43:06,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:43:06,662 INFO L470 AbstractCegarLoop]: Abstraction has 203 states and 292 transitions. [2021-10-28 23:43:06,663 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 23:43:06,664 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 292 transitions. [2021-10-28 23:43:06,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-28 23:43:06,668 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:43:06,668 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 23:43:06,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-28 23:43:06,669 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 23:43:06,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:43:06,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1000759295, now seen corresponding path program 1 times [2021-10-28 23:43:06,670 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:43:06,670 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665590761] [2021-10-28 23:43:06,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:43:06,671 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:43:06,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:43:06,807 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 23:43:06,808 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:43:06,808 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665590761] [2021-10-28 23:43:06,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665590761] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:43:06,809 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:43:06,809 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 23:43:06,811 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953858940] [2021-10-28 23:43:06,815 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:43:06,816 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:43:06,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:43:06,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:43:06,817 INFO L87 Difference]: Start difference. First operand 203 states and 292 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 23:43:06,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:43:06,991 INFO L93 Difference]: Finished difference Result 769 states and 1111 transitions. [2021-10-28 23:43:06,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 23:43:06,991 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 23:43:06,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:43:06,999 INFO L225 Difference]: With dead ends: 769 [2021-10-28 23:43:06,999 INFO L226 Difference]: Without dead ends: 573 [2021-10-28 23:43:07,001 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 23:43:07,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2021-10-28 23:43:07,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 201. [2021-10-28 23:43:07,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 200 states have (on average 1.43) internal successors, (286), 200 states have internal predecessors, (286), 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 23:43:07,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 286 transitions. [2021-10-28 23:43:07,036 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 286 transitions. Word has length 28 [2021-10-28 23:43:07,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:43:07,037 INFO L470 AbstractCegarLoop]: Abstraction has 201 states and 286 transitions. [2021-10-28 23:43:07,037 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 23:43:07,038 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 286 transitions. [2021-10-28 23:43:07,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-10-28 23:43:07,040 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:43:07,040 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, 1, 1] [2021-10-28 23:43:07,040 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-28 23:43:07,041 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 23:43:07,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:43:07,041 INFO L85 PathProgramCache]: Analyzing trace with hash 341285158, now seen corresponding path program 1 times [2021-10-28 23:43:07,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:43:07,042 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314013562] [2021-10-28 23:43:07,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:43:07,043 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:43:07,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:43:07,115 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 23:43:07,115 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:43:07,115 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314013562] [2021-10-28 23:43:07,116 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314013562] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:43:07,117 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:43:07,117 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 23:43:07,117 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883379875] [2021-10-28 23:43:07,118 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:43:07,118 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:43:07,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:43:07,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:43:07,119 INFO L87 Difference]: Start difference. First operand 201 states and 286 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 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 23:43:07,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:43:07,201 INFO L93 Difference]: Finished difference Result 555 states and 781 transitions. [2021-10-28 23:43:07,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:43:07,202 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 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 35 [2021-10-28 23:43:07,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:43:07,207 INFO L225 Difference]: With dead ends: 555 [2021-10-28 23:43:07,207 INFO L226 Difference]: Without dead ends: 361 [2021-10-28 23:43:07,209 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 23:43:07,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2021-10-28 23:43:07,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 213. [2021-10-28 23:43:07,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 212 states have (on average 1.4056603773584906) internal successors, (298), 212 states have internal predecessors, (298), 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 23:43:07,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 298 transitions. [2021-10-28 23:43:07,233 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 298 transitions. Word has length 35 [2021-10-28 23:43:07,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:43:07,234 INFO L470 AbstractCegarLoop]: Abstraction has 213 states and 298 transitions. [2021-10-28 23:43:07,234 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 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 23:43:07,234 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 298 transitions. [2021-10-28 23:43:07,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-10-28 23:43:07,238 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:43:07,239 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, 1, 1] [2021-10-28 23:43:07,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-28 23:43:07,239 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 23:43:07,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:43:07,240 INFO L85 PathProgramCache]: Analyzing trace with hash -669832092, now seen corresponding path program 1 times [2021-10-28 23:43:07,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:43:07,241 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778979177] [2021-10-28 23:43:07,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:43:07,241 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:43:07,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:43:07,353 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 23:43:07,353 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:43:07,353 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778979177] [2021-10-28 23:43:07,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778979177] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:43:07,354 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:43:07,354 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 23:43:07,355 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235122595] [2021-10-28 23:43:07,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:43:07,355 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:43:07,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:43:07,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:43:07,357 INFO L87 Difference]: Start difference. First operand 213 states and 298 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 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 23:43:07,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:43:07,495 INFO L93 Difference]: Finished difference Result 607 states and 834 transitions. [2021-10-28 23:43:07,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 23:43:07,496 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 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 35 [2021-10-28 23:43:07,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:43:07,500 INFO L225 Difference]: With dead ends: 607 [2021-10-28 23:43:07,500 INFO L226 Difference]: Without dead ends: 401 [2021-10-28 23:43:07,501 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 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 23:43:07,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2021-10-28 23:43:07,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 221. [2021-10-28 23:43:07,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 220 states have (on average 1.3909090909090909) internal successors, (306), 220 states have internal predecessors, (306), 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 23:43:07,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 306 transitions. [2021-10-28 23:43:07,534 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 306 transitions. Word has length 35 [2021-10-28 23:43:07,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:43:07,535 INFO L470 AbstractCegarLoop]: Abstraction has 221 states and 306 transitions. [2021-10-28 23:43:07,535 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 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 23:43:07,536 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 306 transitions. [2021-10-28 23:43:07,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-10-28 23:43:07,540 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:43:07,540 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, 1, 1] [2021-10-28 23:43:07,541 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-28 23:43:07,541 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 23:43:07,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:43:07,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1690900446, now seen corresponding path program 1 times [2021-10-28 23:43:07,542 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:43:07,543 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528106337] [2021-10-28 23:43:07,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:43:07,543 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:43:07,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:43:07,622 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 23:43:07,623 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:43:07,623 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528106337] [2021-10-28 23:43:07,623 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528106337] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:43:07,624 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:43:07,624 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 23:43:07,624 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242822141] [2021-10-28 23:43:07,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:43:07,625 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:43:07,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:43:07,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:43:07,627 INFO L87 Difference]: Start difference. First operand 221 states and 306 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 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 23:43:07,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:43:07,707 INFO L93 Difference]: Finished difference Result 609 states and 852 transitions. [2021-10-28 23:43:07,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:43:07,708 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 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 35 [2021-10-28 23:43:07,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:43:07,711 INFO L225 Difference]: With dead ends: 609 [2021-10-28 23:43:07,711 INFO L226 Difference]: Without dead ends: 395 [2021-10-28 23:43:07,717 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 23:43:07,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2021-10-28 23:43:07,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 393. [2021-10-28 23:43:07,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 392 states have (on average 1.3775510204081634) internal successors, (540), 392 states have internal predecessors, (540), 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 23:43:07,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 540 transitions. [2021-10-28 23:43:07,764 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 540 transitions. Word has length 35 [2021-10-28 23:43:07,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:43:07,764 INFO L470 AbstractCegarLoop]: Abstraction has 393 states and 540 transitions. [2021-10-28 23:43:07,764 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 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 23:43:07,765 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 540 transitions. [2021-10-28 23:43:07,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-10-28 23:43:07,767 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:43:07,768 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, 1, 1, 1] [2021-10-28 23:43:07,768 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-28 23:43:07,768 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 23:43:07,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:43:07,769 INFO L85 PathProgramCache]: Analyzing trace with hash -2015558942, now seen corresponding path program 1 times [2021-10-28 23:43:07,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:43:07,771 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737099782] [2021-10-28 23:43:07,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:43:07,772 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:43:07,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:43:07,907 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 23:43:07,908 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:43:07,908 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737099782] [2021-10-28 23:43:07,908 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737099782] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:43:07,909 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:43:07,909 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-28 23:43:07,909 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363564985] [2021-10-28 23:43:07,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 23:43:07,911 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:43:07,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 23:43:07,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:43:07,913 INFO L87 Difference]: Start difference. First operand 393 states and 540 transitions. Second operand has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 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 23:43:08,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:43:08,609 INFO L93 Difference]: Finished difference Result 1942 states and 2588 transitions. [2021-10-28 23:43:08,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-28 23:43:08,610 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 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 36 [2021-10-28 23:43:08,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:43:08,621 INFO L225 Difference]: With dead ends: 1942 [2021-10-28 23:43:08,621 INFO L226 Difference]: Without dead ends: 1556 [2021-10-28 23:43:08,623 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=159, Invalid=393, Unknown=0, NotChecked=0, Total=552 [2021-10-28 23:43:08,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1556 states. [2021-10-28 23:43:08,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1556 to 393. [2021-10-28 23:43:08,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 392 states have (on average 1.3520408163265305) internal successors, (530), 392 states have internal predecessors, (530), 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 23:43:08,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 530 transitions. [2021-10-28 23:43:08,688 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 530 transitions. Word has length 36 [2021-10-28 23:43:08,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:43:08,688 INFO L470 AbstractCegarLoop]: Abstraction has 393 states and 530 transitions. [2021-10-28 23:43:08,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 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 23:43:08,689 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 530 transitions. [2021-10-28 23:43:08,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-10-28 23:43:08,690 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:43:08,691 INFO L513 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2021-10-28 23:43:08,691 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-28 23:43:08,692 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 23:43:08,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:43:08,692 INFO L85 PathProgramCache]: Analyzing trace with hash -59965040, now seen corresponding path program 1 times [2021-10-28 23:43:08,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:43:08,693 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727272122] [2021-10-28 23:43:08,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:43:08,694 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:43:08,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:43:08,753 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:43:08,753 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:43:08,753 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727272122] [2021-10-28 23:43:08,754 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727272122] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:43:08,754 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:43:08,754 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:43:08,754 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15432040] [2021-10-28 23:43:08,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:43:08,755 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:43:08,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:43:08,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:43:08,756 INFO L87 Difference]: Start difference. First operand 393 states and 530 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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 23:43:08,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:43:08,861 INFO L93 Difference]: Finished difference Result 651 states and 879 transitions. [2021-10-28 23:43:08,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:43:08,862 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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 51 [2021-10-28 23:43:08,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:43:08,867 INFO L225 Difference]: With dead ends: 651 [2021-10-28 23:43:08,868 INFO L226 Difference]: Without dead ends: 649 [2021-10-28 23:43:08,868 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 23:43:08,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states. [2021-10-28 23:43:08,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 473. [2021-10-28 23:43:08,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 472 states have (on average 1.3771186440677967) internal successors, (650), 472 states have internal predecessors, (650), 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 23:43:08,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 650 transitions. [2021-10-28 23:43:08,932 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 650 transitions. Word has length 51 [2021-10-28 23:43:08,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:43:08,933 INFO L470 AbstractCegarLoop]: Abstraction has 473 states and 650 transitions. [2021-10-28 23:43:08,933 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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 23:43:08,933 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 650 transitions. [2021-10-28 23:43:08,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-10-28 23:43:08,935 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:43:08,936 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-10-28 23:43:08,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-28 23:43:08,936 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:43:08,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:43:08,937 INFO L85 PathProgramCache]: Analyzing trace with hash -376855367, now seen corresponding path program 1 times [2021-10-28 23:43:08,937 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:43:08,938 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147988127] [2021-10-28 23:43:08,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:43:08,938 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:43:09,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:43:09,026 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:43:09,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:43:09,211 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:43:09,212 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 23:43:09,213 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:43:09,215 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:43:09,216 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:43:09,216 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-28 23:43:09,220 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:43:09,225 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:43:09,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:43:09 BoogieIcfgContainer [2021-10-28 23:43:09,393 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:43:09,394 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:43:09,394 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:43:09,394 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:43:09,395 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:43:04" (3/4) ... [2021-10-28 23:43:09,397 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-28 23:43:09,572 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5b03cb-3a93-4157-9fde-3cb68e384d1c/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 23:43:09,572 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:43:09,574 INFO L168 Benchmark]: Toolchain (without parser) took 7055.00 ms. Allocated memory was 92.3 MB in the beginning and 172.0 MB in the end (delta: 79.7 MB). Free memory was 69.5 MB in the beginning and 133.2 MB in the end (delta: -63.8 MB). Peak memory consumption was 106.3 MB. Max. memory is 16.1 GB. [2021-10-28 23:43:09,574 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 92.3 MB. Free memory is still 68.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:43:09,575 INFO L168 Benchmark]: CACSL2BoogieTranslator took 850.73 ms. Allocated memory is still 92.3 MB. Free memory was 69.2 MB in the beginning and 59.8 MB in the end (delta: 9.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:43:09,575 INFO L168 Benchmark]: Boogie Procedure Inliner took 112.93 ms. Allocated memory is still 92.3 MB. Free memory was 59.8 MB in the beginning and 56.5 MB in the end (delta: 3.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:43:09,576 INFO L168 Benchmark]: Boogie Preprocessor took 53.02 ms. Allocated memory is still 92.3 MB. Free memory was 56.5 MB in the beginning and 54.3 MB in the end (delta: 2.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:43:09,576 INFO L168 Benchmark]: RCFGBuilder took 1185.02 ms. Allocated memory was 92.3 MB in the beginning and 130.0 MB in the end (delta: 37.7 MB). Free memory was 54.1 MB in the beginning and 75.3 MB in the end (delta: -21.2 MB). Peak memory consumption was 20.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:43:09,577 INFO L168 Benchmark]: TraceAbstraction took 4665.29 ms. Allocated memory was 130.0 MB in the beginning and 172.0 MB in the end (delta: 41.9 MB). Free memory was 75.3 MB in the beginning and 64.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 51.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:43:09,577 INFO L168 Benchmark]: Witness Printer took 178.01 ms. Allocated memory is still 172.0 MB. Free memory was 64.7 MB in the beginning and 133.2 MB in the end (delta: -68.6 MB). Peak memory consumption was 23.7 MB. Max. memory is 16.1 GB. [2021-10-28 23:43:09,584 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 92.3 MB. Free memory is still 68.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 850.73 ms. Allocated memory is still 92.3 MB. Free memory was 69.2 MB in the beginning and 59.8 MB in the end (delta: 9.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 112.93 ms. Allocated memory is still 92.3 MB. Free memory was 59.8 MB in the beginning and 56.5 MB in the end (delta: 3.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 53.02 ms. Allocated memory is still 92.3 MB. Free memory was 56.5 MB in the beginning and 54.3 MB in the end (delta: 2.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1185.02 ms. Allocated memory was 92.3 MB in the beginning and 130.0 MB in the end (delta: 37.7 MB). Free memory was 54.1 MB in the beginning and 75.3 MB in the end (delta: -21.2 MB). Peak memory consumption was 20.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4665.29 ms. Allocated memory was 130.0 MB in the beginning and 172.0 MB in the end (delta: 41.9 MB). Free memory was 75.3 MB in the beginning and 64.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 51.2 MB. Max. memory is 16.1 GB. * Witness Printer took 178.01 ms. Allocated memory is still 172.0 MB. Free memory was 64.7 MB in the beginning and 133.2 MB in the end (delta: -68.6 MB). Peak memory consumption was 23.7 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: 54]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L142] int pumpRunning = 0; [L143] int systemActive = 1; [L374] int cleanupTimeShifts = 4; [L472] int methAndRunningLastTime ; [L512] int waterLevel = 1; [L513] int methaneLevelCritical = 0; [L775] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L449] int retValue_acc ; [L450] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L365] int retValue_acc ; [L368] retValue_acc = 1 [L369] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L456] tmp = valid_product() [L458] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L477] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L66] int splverifierCounter ; [L67] int tmp ; [L68] int tmp___0 ; [L69] int tmp___1 ; [L70] int tmp___2 ; [L73] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L75] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L77] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L83] tmp = __VERIFIER_nondet_int() [L85] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L530] COND TRUE waterLevel < 2 [L531] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L93] tmp___0 = __VERIFIER_nondet_int() [L95] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L103] tmp___2 = __VERIFIER_nondet_int() [L105] COND TRUE \read(tmp___2) [L331] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L150] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L157] COND TRUE \read(systemActive) [L179] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L182] COND TRUE ! pumpRunning [L294] int retValue_acc ; [L295] int tmp ; [L296] int tmp___0 ; [L592] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L595] COND FALSE !(waterLevel < 2) [L599] retValue_acc = 0 [L600] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L300] tmp = isHighWaterSensorDry() [L302] COND FALSE !(\read(tmp)) [L305] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L307] retValue_acc = tmp___0 [L308] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L184] tmp = isHighWaterLevel() [L186] COND TRUE \read(tmp) [L213] int tmp ; [L238] int retValue_acc ; [L551] int retValue_acc ; [L554] retValue_acc = methaneLevelCritical [L555] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L242] retValue_acc = isMethaneLevelCritical() [L244] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L217] tmp = isMethaneAlarm() [L219] COND FALSE !(\read(tmp)) [L207] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L482] int tmp ; [L483] int tmp___0 ; [L551] int retValue_acc ; [L554] retValue_acc = methaneLevelCritical [L555] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L487] tmp = isMethaneLevelCritical() [L489] COND FALSE !(\read(tmp)) [L505] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L75] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L77] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L83] tmp = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L93] tmp___0 = __VERIFIER_nondet_int() [L95] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L542] COND FALSE !(\read(methaneLevelCritical)) [L545] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L103] tmp___2 = __VERIFIER_nondet_int() [L105] COND TRUE \read(tmp___2) [L331] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L150] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L518] COND TRUE waterLevel > 0 [L519] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L157] COND TRUE \read(systemActive) [L179] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L182] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L482] int tmp ; [L483] int tmp___0 ; [L551] int retValue_acc ; [L554] retValue_acc = methaneLevelCritical [L555] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L487] tmp = isMethaneLevelCritical() [L489] COND TRUE \read(tmp) [L249] int retValue_acc ; [L252] retValue_acc = pumpRunning [L253] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L491] tmp___0 = isPumpRunning() [L493] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L494] COND FALSE !(\read(methAndRunningLastTime)) [L499] methAndRunningLastTime = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L75] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L77] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L83] tmp = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L93] tmp___0 = __VERIFIER_nondet_int() [L95] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L103] tmp___2 = __VERIFIER_nondet_int() [L105] COND TRUE \read(tmp___2) [L331] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L150] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L518] COND TRUE waterLevel > 0 [L519] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L157] COND TRUE \read(systemActive) [L179] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L182] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L482] int tmp ; [L483] int tmp___0 ; [L551] int retValue_acc ; [L554] retValue_acc = methaneLevelCritical [L555] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L487] tmp = isMethaneLevelCritical() [L489] COND TRUE \read(tmp) [L249] int retValue_acc ; [L252] retValue_acc = pumpRunning [L253] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L491] tmp___0 = isPumpRunning() [L493] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L494] COND TRUE \read(methAndRunningLastTime) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L54] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] - UnprovableResult [Line: 54]: 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: 54]: 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, 93 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 4.3s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 971 SDtfs, 1382 SDslu, 1985 SDs, 0 SdLazy, 277 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 84 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=473occurred in iteration=11, InterpolantAutomatonStates: 70, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 11 MinimizatonAttempts, 2283 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 402 NumberOfCodeBlocks, 402 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 322 ConstructedInterpolants, 0 QuantifiedInterpolants, 588 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 14/14 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 23:43:09,639 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5b03cb-3a93-4157-9fde-3cb68e384d1c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...