./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product26.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ae20fab-8180-402a-849d-469449a94937/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ae20fab-8180-402a-849d-469449a94937/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ae20fab-8180-402a-849d-469449a94937/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ae20fab-8180-402a-849d-469449a94937/bin/uautomizer-WNIpwEf4Nt/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product26.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ae20fab-8180-402a-849d-469449a94937/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ae20fab-8180-402a-849d-469449a94937/bin/uautomizer-WNIpwEf4Nt --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 4014dbf0df0ea89fc5bcb7584dfcfa1c9ac1cf1e ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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-4e77c04 [2021-10-13 01:25:27,449 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 01:25:27,452 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 01:25:27,501 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 01:25:27,501 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 01:25:27,506 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 01:25:27,508 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 01:25:27,512 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 01:25:27,514 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 01:25:27,521 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 01:25:27,522 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 01:25:27,525 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 01:25:27,525 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 01:25:27,528 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 01:25:27,531 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 01:25:27,538 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 01:25:27,539 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 01:25:27,540 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 01:25:27,542 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 01:25:27,545 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 01:25:27,546 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 01:25:27,550 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 01:25:27,554 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 01:25:27,555 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 01:25:27,564 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 01:25:27,564 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 01:25:27,565 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 01:25:27,566 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 01:25:27,567 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 01:25:27,569 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 01:25:27,570 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 01:25:27,571 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 01:25:27,573 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 01:25:27,574 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 01:25:27,575 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 01:25:27,576 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 01:25:27,576 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 01:25:27,577 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 01:25:27,578 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 01:25:27,579 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 01:25:27,580 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 01:25:27,581 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ae20fab-8180-402a-849d-469449a94937/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-13 01:25:27,632 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 01:25:27,633 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 01:25:27,633 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 01:25:27,633 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 01:25:27,636 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 01:25:27,636 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 01:25:27,636 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 01:25:27,637 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 01:25:27,637 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 01:25:27,637 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 01:25:27,638 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 01:25:27,638 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 01:25:27,638 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 01:25:27,639 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 01:25:27,639 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 01:25:27,639 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 01:25:27,639 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 01:25:27,639 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 01:25:27,640 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 01:25:27,640 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 01:25:27,640 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 01:25:27,640 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 01:25:27,640 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 01:25:27,641 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 01:25:27,641 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 01:25:27,641 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 01:25:27,641 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 01:25:27,642 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 01:25:27,642 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 01:25:27,643 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 01:25:27,643 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_0ae20fab-8180-402a-849d-469449a94937/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ae20fab-8180-402a-849d-469449a94937/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4014dbf0df0ea89fc5bcb7584dfcfa1c9ac1cf1e [2021-10-13 01:25:27,932 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 01:25:27,953 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 01:25:27,956 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 01:25:27,957 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 01:25:27,958 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 01:25:27,959 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ae20fab-8180-402a-849d-469449a94937/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/product-lines/minepump_spec3_product26.cil.c [2021-10-13 01:25:28,024 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ae20fab-8180-402a-849d-469449a94937/bin/uautomizer-WNIpwEf4Nt/data/a972cacf4/0c99570ae6da4b828d00b79de21c5477/FLAG53e5637ed [2021-10-13 01:25:28,595 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 01:25:28,598 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ae20fab-8180-402a-849d-469449a94937/sv-benchmarks/c/product-lines/minepump_spec3_product26.cil.c [2021-10-13 01:25:28,618 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ae20fab-8180-402a-849d-469449a94937/bin/uautomizer-WNIpwEf4Nt/data/a972cacf4/0c99570ae6da4b828d00b79de21c5477/FLAG53e5637ed [2021-10-13 01:25:28,869 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ae20fab-8180-402a-849d-469449a94937/bin/uautomizer-WNIpwEf4Nt/data/a972cacf4/0c99570ae6da4b828d00b79de21c5477 [2021-10-13 01:25:28,872 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 01:25:28,873 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 01:25:28,875 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 01:25:28,875 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 01:25:28,878 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 01:25:28,879 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:25:28" (1/1) ... [2021-10-13 01:25:28,881 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32a62aff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:28, skipping insertion in model container [2021-10-13 01:25:28,882 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:25:28" (1/1) ... [2021-10-13 01:25:28,889 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 01:25:28,955 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 01:25:29,291 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_0ae20fab-8180-402a-849d-469449a94937/sv-benchmarks/c/product-lines/minepump_spec3_product26.cil.c[14037,14050] [2021-10-13 01:25:29,311 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:25:29,321 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 01:25:29,380 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_0ae20fab-8180-402a-849d-469449a94937/sv-benchmarks/c/product-lines/minepump_spec3_product26.cil.c[14037,14050] [2021-10-13 01:25:29,392 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:25:29,410 INFO L208 MainTranslator]: Completed translation [2021-10-13 01:25:29,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:29 WrapperNode [2021-10-13 01:25:29,410 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 01:25:29,411 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 01:25:29,412 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 01:25:29,412 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 01:25:29,420 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:29" (1/1) ... [2021-10-13 01:25:29,453 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:29" (1/1) ... [2021-10-13 01:25:29,503 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 01:25:29,503 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 01:25:29,504 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 01:25:29,504 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 01:25:29,515 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:29" (1/1) ... [2021-10-13 01:25:29,515 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:29" (1/1) ... [2021-10-13 01:25:29,530 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:29" (1/1) ... [2021-10-13 01:25:29,531 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:29" (1/1) ... [2021-10-13 01:25:29,562 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:29" (1/1) ... [2021-10-13 01:25:29,568 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:29" (1/1) ... [2021-10-13 01:25:29,570 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:29" (1/1) ... [2021-10-13 01:25:29,573 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 01:25:29,574 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 01:25:29,574 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 01:25:29,574 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 01:25:29,589 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:29" (1/1) ... [2021-10-13 01:25:29,604 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 01:25:29,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ae20fab-8180-402a-849d-469449a94937/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:25:29,629 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ae20fab-8180-402a-849d-469449a94937/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 01:25:29,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ae20fab-8180-402a-849d-469449a94937/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 01:25:29,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 01:25:29,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 01:25:29,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 01:25:29,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 01:25:30,540 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 01:25:30,541 INFO L299 CfgBuilder]: Removed 104 assume(true) statements. [2021-10-13 01:25:30,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:25:30 BoogieIcfgContainer [2021-10-13 01:25:30,543 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 01:25:30,545 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 01:25:30,545 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 01:25:30,549 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 01:25:30,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 01:25:28" (1/3) ... [2021-10-13 01:25:30,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48b8ccd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:25:30, skipping insertion in model container [2021-10-13 01:25:30,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:29" (2/3) ... [2021-10-13 01:25:30,551 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48b8ccd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:25:30, skipping insertion in model container [2021-10-13 01:25:30,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:25:30" (3/3) ... [2021-10-13 01:25:30,552 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product26.cil.c [2021-10-13 01:25:30,558 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 01:25:30,558 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-13 01:25:30,623 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 01:25:30,632 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, 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 [2021-10-13 01:25:30,633 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-13 01:25:30,647 INFO L276 IsEmpty]: Start isEmpty. Operand has 81 states, 77 states have (on average 1.5584415584415585) internal successors, (120), 80 states have internal predecessors, (120), 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) [2021-10-13 01:25:30,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-13 01:25:30,656 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:25:30,657 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:25:30,657 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:25:30,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:25:30,668 INFO L82 PathProgramCache]: Analyzing trace with hash 928665618, now seen corresponding path program 1 times [2021-10-13 01:25:30,687 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:25:30,688 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302005460] [2021-10-13 01:25:30,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:25:30,690 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:25:30,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:25:31,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:25:31,071 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:25:31,071 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302005460] [2021-10-13 01:25:31,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302005460] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:25:31,073 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:25:31,073 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 01:25:31,076 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311525895] [2021-10-13 01:25:31,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-13 01:25:31,087 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:25:31,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-13 01:25:31,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 01:25:31,111 INFO L87 Difference]: Start difference. First operand has 81 states, 77 states have (on average 1.5584415584415585) internal successors, (120), 80 states have internal predecessors, (120), 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) [2021-10-13 01:25:31,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:25:31,151 INFO L93 Difference]: Finished difference Result 156 states and 233 transitions. [2021-10-13 01:25:31,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 01:25:31,153 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 [2021-10-13 01:25:31,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:25:31,163 INFO L225 Difference]: With dead ends: 156 [2021-10-13 01:25:31,164 INFO L226 Difference]: Without dead ends: 77 [2021-10-13 01:25:31,167 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 01:25:31,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2021-10-13 01:25:31,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2021-10-13 01:25:31,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 74 states have (on average 1.4594594594594594) internal successors, (108), 76 states have internal predecessors, (108), 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) [2021-10-13 01:25:31,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 108 transitions. [2021-10-13 01:25:31,218 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 108 transitions. Word has length 18 [2021-10-13 01:25:31,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:25:31,219 INFO L470 AbstractCegarLoop]: Abstraction has 77 states and 108 transitions. [2021-10-13 01:25:31,220 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) [2021-10-13 01:25:31,221 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 108 transitions. [2021-10-13 01:25:31,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-13 01:25:31,223 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:25:31,223 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:25:31,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 01:25:31,224 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:25:31,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:25:31,227 INFO L82 PathProgramCache]: Analyzing trace with hash 674916017, now seen corresponding path program 1 times [2021-10-13 01:25:31,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:25:31,228 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365613967] [2021-10-13 01:25:31,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:25:31,228 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:25:31,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:25:31,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:25:31,391 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:25:31,391 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365613967] [2021-10-13 01:25:31,392 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365613967] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:25:31,392 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:25:31,392 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:25:31,392 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67206126] [2021-10-13 01:25:31,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:25:31,395 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:25:31,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:25:31,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:25:31,398 INFO L87 Difference]: Start difference. First operand 77 states and 108 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) [2021-10-13 01:25:31,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:25:31,416 INFO L93 Difference]: Finished difference Result 77 states and 108 transitions. [2021-10-13 01:25:31,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:25:31,417 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 [2021-10-13 01:25:31,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:25:31,420 INFO L225 Difference]: With dead ends: 77 [2021-10-13 01:25:31,420 INFO L226 Difference]: Without dead ends: 35 [2021-10-13 01:25:31,421 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:25:31,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-10-13 01:25:31,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-10-13 01:25:31,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.4411764705882353) internal successors, (49), 34 states have internal predecessors, (49), 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) [2021-10-13 01:25:31,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 49 transitions. [2021-10-13 01:25:31,432 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 49 transitions. Word has length 19 [2021-10-13 01:25:31,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:25:31,433 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 49 transitions. [2021-10-13 01:25:31,433 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) [2021-10-13 01:25:31,433 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 49 transitions. [2021-10-13 01:25:31,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-13 01:25:31,434 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:25:31,434 INFO L512 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] [2021-10-13 01:25:31,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 01:25:31,435 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:25:31,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:25:31,435 INFO L82 PathProgramCache]: Analyzing trace with hash 492093711, now seen corresponding path program 1 times [2021-10-13 01:25:31,436 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:25:31,436 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981329006] [2021-10-13 01:25:31,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:25:31,436 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:25:31,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:25:31,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:25:31,514 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:25:31,514 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981329006] [2021-10-13 01:25:31,514 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981329006] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:25:31,514 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:25:31,515 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 01:25:31,515 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535693613] [2021-10-13 01:25:31,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 01:25:31,516 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:25:31,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 01:25:31,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 01:25:31,517 INFO L87 Difference]: Start difference. First operand 35 states and 49 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:25:31,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:25:31,555 INFO L93 Difference]: Finished difference Result 64 states and 92 transitions. [2021-10-13 01:25:31,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 01:25:31,556 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-10-13 01:25:31,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:25:31,556 INFO L225 Difference]: With dead ends: 64 [2021-10-13 01:25:31,557 INFO L226 Difference]: Without dead ends: 35 [2021-10-13 01:25:31,557 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.2ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-13 01:25:31,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-10-13 01:25:31,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-10-13 01:25:31,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.411764705882353) internal successors, (48), 34 states have internal predecessors, (48), 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) [2021-10-13 01:25:31,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 48 transitions. [2021-10-13 01:25:31,562 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 48 transitions. Word has length 24 [2021-10-13 01:25:31,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:25:31,563 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 48 transitions. [2021-10-13 01:25:31,563 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:25:31,563 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 48 transitions. [2021-10-13 01:25:31,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-13 01:25:31,564 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:25:31,564 INFO L512 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] [2021-10-13 01:25:31,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-13 01:25:31,565 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:25:31,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:25:31,565 INFO L82 PathProgramCache]: Analyzing trace with hash -147058101, now seen corresponding path program 1 times [2021-10-13 01:25:31,565 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:25:31,566 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464007271] [2021-10-13 01:25:31,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:25:31,566 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:25:31,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:25:31,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:25:31,712 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:25:31,713 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464007271] [2021-10-13 01:25:31,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464007271] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:25:31,713 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:25:31,713 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 01:25:31,713 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947679832] [2021-10-13 01:25:31,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 01:25:31,714 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:25:31,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 01:25:31,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 01:25:31,715 INFO L87 Difference]: Start difference. First operand 35 states and 48 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 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) [2021-10-13 01:25:31,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:25:31,800 INFO L93 Difference]: Finished difference Result 172 states and 255 transitions. [2021-10-13 01:25:31,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 01:25:31,800 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 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 [2021-10-13 01:25:31,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:25:31,802 INFO L225 Difference]: With dead ends: 172 [2021-10-13 01:25:31,802 INFO L226 Difference]: Without dead ends: 143 [2021-10-13 01:25:31,803 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 25.9ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-13 01:25:31,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2021-10-13 01:25:31,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 60. [2021-10-13 01:25:31,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 59 states have (on average 1.423728813559322) internal successors, (84), 59 states have internal predecessors, (84), 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) [2021-10-13 01:25:31,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 84 transitions. [2021-10-13 01:25:31,814 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 84 transitions. Word has length 25 [2021-10-13 01:25:31,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:25:31,814 INFO L470 AbstractCegarLoop]: Abstraction has 60 states and 84 transitions. [2021-10-13 01:25:31,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 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) [2021-10-13 01:25:31,815 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 84 transitions. [2021-10-13 01:25:31,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-13 01:25:31,816 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:25:31,816 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:25:31,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-13 01:25:31,816 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:25:31,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:25:31,817 INFO L82 PathProgramCache]: Analyzing trace with hash -2106367091, now seen corresponding path program 1 times [2021-10-13 01:25:31,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:25:31,817 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028413561] [2021-10-13 01:25:31,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:25:31,818 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:25:31,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:25:31,887 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:25:31,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:25:31,985 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:25:31,985 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-13 01:25:31,986 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 01:25:31,988 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 01:25:31,988 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 01:25:31,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-13 01:25:31,995 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 01:25:32,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 01:25:32 BoogieIcfgContainer [2021-10-13 01:25:32,069 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 01:25:32,070 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 01:25:32,070 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 01:25:32,070 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 01:25:32,071 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:25:30" (3/4) ... [2021-10-13 01:25:32,072 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-13 01:25:32,165 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ae20fab-8180-402a-849d-469449a94937/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 01:25:32,165 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 01:25:32,167 INFO L168 Benchmark]: Toolchain (without parser) took 3293.08 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 68.1 MB in the beginning and 53.3 MB in the end (delta: 14.8 MB). Peak memory consumption was 35.4 MB. Max. memory is 16.1 GB. [2021-10-13 01:25:32,168 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 111.1 MB. Free memory was 85.2 MB in the beginning and 85.1 MB in the end (delta: 60.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:25:32,168 INFO L168 Benchmark]: CACSL2BoogieTranslator took 535.45 ms. Allocated memory is still 111.1 MB. Free memory was 67.9 MB in the beginning and 76.6 MB in the end (delta: -8.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 01:25:32,169 INFO L168 Benchmark]: Boogie Procedure Inliner took 91.42 ms. Allocated memory is still 111.1 MB. Free memory was 76.6 MB in the beginning and 73.7 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 01:25:32,169 INFO L168 Benchmark]: Boogie Preprocessor took 69.92 ms. Allocated memory is still 111.1 MB. Free memory was 73.7 MB in the beginning and 71.3 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 01:25:32,170 INFO L168 Benchmark]: RCFGBuilder took 969.30 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 71.3 MB in the beginning and 102.6 MB in the end (delta: -31.3 MB). Peak memory consumption was 40.7 MB. Max. memory is 16.1 GB. [2021-10-13 01:25:32,170 INFO L168 Benchmark]: TraceAbstraction took 1524.23 ms. Allocated memory is still 134.2 MB. Free memory was 101.8 MB in the beginning and 64.8 MB in the end (delta: 36.9 MB). Peak memory consumption was 34.6 MB. Max. memory is 16.1 GB. [2021-10-13 01:25:32,171 INFO L168 Benchmark]: Witness Printer took 95.82 ms. Allocated memory is still 134.2 MB. Free memory was 64.8 MB in the beginning and 53.3 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 01:25:32,174 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 111.1 MB. Free memory was 85.2 MB in the beginning and 85.1 MB in the end (delta: 60.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 535.45 ms. Allocated memory is still 111.1 MB. Free memory was 67.9 MB in the beginning and 76.6 MB in the end (delta: -8.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 91.42 ms. Allocated memory is still 111.1 MB. Free memory was 76.6 MB in the beginning and 73.7 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 69.92 ms. Allocated memory is still 111.1 MB. Free memory was 73.7 MB in the beginning and 71.3 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 969.30 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 71.3 MB in the beginning and 102.6 MB in the end (delta: -31.3 MB). Peak memory consumption was 40.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1524.23 ms. Allocated memory is still 134.2 MB. Free memory was 101.8 MB in the beginning and 64.8 MB in the end (delta: 36.9 MB). Peak memory consumption was 34.6 MB. Max. memory is 16.1 GB. * Witness Printer took 95.82 ms. Allocated memory is still 134.2 MB. Free memory was 64.8 MB in the beginning and 53.3 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 645]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L42] int cleanupTimeShifts = 4; [L186] int waterLevel = 1; [L187] int methaneLevelCritical = 0; [L444] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L654] int pumpRunning = 0; [L655] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L123] int retValue_acc ; [L124] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L172] int retValue_acc ; [L175] retValue_acc = 1 [L176] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L834] int splverifierCounter ; [L835] int tmp ; [L836] int tmp___0 ; [L837] int tmp___1 ; [L838] int tmp___2 ; [L841] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L843] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L845] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L851] tmp = __VERIFIER_nondet_int() [L853] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L204] COND TRUE waterLevel < 2 [L205] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L861] tmp___0 = __VERIFIER_nondet_int() [L863] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L871] tmp___2 = __VERIFIER_nondet_int() [L873] COND TRUE \read(tmp___2) [L828] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L662] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L669] COND TRUE \read(systemActive) [L691] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L694] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L901] int tmp ; [L902] int tmp___0 ; [L903] int tmp___1 ; [L225] int retValue_acc ; [L228] retValue_acc = methaneLevelCritical [L229] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L907] tmp = isMethaneLevelCritical() [L909] COND FALSE !(\read(tmp)) [L257] int retValue_acc ; [L260] retValue_acc = waterLevel [L261] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L913] tmp___0 = getWaterLevel() [L915] COND TRUE tmp___0 == 2 [L761] int retValue_acc ; [L764] retValue_acc = pumpRunning [L765] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L917] tmp___1 = isPumpRunning() [L919] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L645] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - UnprovableResult [Line: 645]: 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: 645]: 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, 81 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 1371.4ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 17.5ms, AutomataDifference: 235.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 10.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 277 SDtfs, 371 SDslu, 184 SDs, 0 SdLazy, 49 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 51.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 51.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=81occurred in iteration=0, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 63.9ms AutomataMinimizationTime, 4 MinimizatonAttempts, 83 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 42.6ms SsaConstructionTime, 367.0ms SatisfiabilityAnalysisTime, 338.8ms InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 138 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-13 01:25:32,211 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ae20fab-8180-402a-849d-469449a94937/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...