./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product56.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7aff0d-5134-438b-ba99-bede1c6b2db0/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7aff0d-5134-438b-ba99-bede1c6b2db0/bin/uautomizer-Z5i5R5N3CC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7aff0d-5134-438b-ba99-bede1c6b2db0/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7aff0d-5134-438b-ba99-bede1c6b2db0/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product56.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7aff0d-5134-438b-ba99-bede1c6b2db0/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7aff0d-5134-438b-ba99-bede1c6b2db0/bin/uautomizer-Z5i5R5N3CC --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 8d89cb30057b8721685c80693144eb2455c18c87 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.2.0-7b2dab5 [2021-10-11 00:26:20,445 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:26:20,448 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:26:20,482 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:26:20,483 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:26:20,484 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:26:20,486 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:26:20,489 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:26:20,491 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:26:20,492 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:26:20,493 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:26:20,495 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:26:20,495 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:26:20,497 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:26:20,498 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:26:20,500 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:26:20,501 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:26:20,503 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:26:20,505 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:26:20,507 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:26:20,510 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:26:20,514 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:26:20,516 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:26:20,517 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:26:20,521 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:26:20,521 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:26:20,522 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:26:20,523 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:26:20,525 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:26:20,526 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:26:20,527 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:26:20,534 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:26:20,537 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:26:20,538 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:26:20,540 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:26:20,540 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:26:20,541 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:26:20,541 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:26:20,542 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:26:20,543 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:26:20,544 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:26:20,544 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7aff0d-5134-438b-ba99-bede1c6b2db0/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-11 00:26:20,595 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:26:20,596 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:26:20,598 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:26:20,598 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:26:20,598 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:26:20,599 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:26:20,599 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:26:20,599 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:26:20,599 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:26:20,600 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:26:20,607 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:26:20,607 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:26:20,607 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:26:20,607 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:26:20,608 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:26:20,608 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:26:20,608 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:26:20,609 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:26:20,609 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:26:20,609 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:26:20,609 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:26:20,610 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:26:20,610 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:26:20,610 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:26:20,611 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:26:20,611 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:26:20,611 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:26:20,611 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:26:20,612 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_dd7aff0d-5134-438b-ba99-bede1c6b2db0/bin/uautomizer-Z5i5R5N3CC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7aff0d-5134-438b-ba99-bede1c6b2db0/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d89cb30057b8721685c80693144eb2455c18c87 [2021-10-11 00:26:20,889 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:26:20,929 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:26:20,933 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:26:20,935 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:26:20,936 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:26:20,937 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7aff0d-5134-438b-ba99-bede1c6b2db0/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/product-lines/minepump_spec1_product56.cil.c [2021-10-11 00:26:21,025 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7aff0d-5134-438b-ba99-bede1c6b2db0/bin/uautomizer-Z5i5R5N3CC/data/39039a16a/678ff73262c94c528e29484c01f2cee4/FLAG3b1be6d96 [2021-10-11 00:26:21,590 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:26:21,591 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7aff0d-5134-438b-ba99-bede1c6b2db0/sv-benchmarks/c/product-lines/minepump_spec1_product56.cil.c [2021-10-11 00:26:21,604 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7aff0d-5134-438b-ba99-bede1c6b2db0/bin/uautomizer-Z5i5R5N3CC/data/39039a16a/678ff73262c94c528e29484c01f2cee4/FLAG3b1be6d96 [2021-10-11 00:26:21,924 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7aff0d-5134-438b-ba99-bede1c6b2db0/bin/uautomizer-Z5i5R5N3CC/data/39039a16a/678ff73262c94c528e29484c01f2cee4 [2021-10-11 00:26:21,928 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:26:21,930 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:26:21,938 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:26:21,938 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:26:21,941 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:26:21,942 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:26:21" (1/1) ... [2021-10-11 00:26:21,944 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a43b4da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:26:21, skipping insertion in model container [2021-10-11 00:26:21,944 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:26:21" (1/1) ... [2021-10-11 00:26:21,952 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:26:22,031 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:26:22,321 WARN L226 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_dd7aff0d-5134-438b-ba99-bede1c6b2db0/sv-benchmarks/c/product-lines/minepump_spec1_product56.cil.c[16355,16368] [2021-10-11 00:26:22,340 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:26:22,349 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:26:22,422 WARN L226 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_dd7aff0d-5134-438b-ba99-bede1c6b2db0/sv-benchmarks/c/product-lines/minepump_spec1_product56.cil.c[16355,16368] [2021-10-11 00:26:22,431 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:26:22,469 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:26:22,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:26:22 WrapperNode [2021-10-11 00:26:22,470 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:26:22,471 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:26:22,471 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:26:22,471 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:26:22,479 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:26:22" (1/1) ... [2021-10-11 00:26:22,500 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:26:22" (1/1) ... [2021-10-11 00:26:22,567 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:26:22,568 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:26:22,568 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:26:22,568 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:26:22,577 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:26:22" (1/1) ... [2021-10-11 00:26:22,577 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:26:22" (1/1) ... [2021-10-11 00:26:22,596 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:26:22" (1/1) ... [2021-10-11 00:26:22,597 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:26:22" (1/1) ... [2021-10-11 00:26:22,630 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:26:22" (1/1) ... [2021-10-11 00:26:22,654 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:26:22" (1/1) ... [2021-10-11 00:26:22,658 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:26:22" (1/1) ... [2021-10-11 00:26:22,664 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:26:22,665 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:26:22,665 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:26:22,666 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:26:22,688 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:26:22" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7aff0d-5134-438b-ba99-bede1c6b2db0/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:26:22,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:26:22,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 00:26:22,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:26:22,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:26:23,954 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:26:23,955 INFO L299 CfgBuilder]: Removed 282 assume(true) statements. [2021-10-11 00:26:23,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:26:23 BoogieIcfgContainer [2021-10-11 00:26:23,957 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:26:23,959 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:26:23,959 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:26:23,963 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:26:23,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:26:21" (1/3) ... [2021-10-11 00:26:23,964 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@795f9447 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:26:23, skipping insertion in model container [2021-10-11 00:26:23,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:26:22" (2/3) ... [2021-10-11 00:26:23,965 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@795f9447 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:26:23, skipping insertion in model container [2021-10-11 00:26:23,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:26:23" (3/3) ... [2021-10-11 00:26:23,966 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product56.cil.c [2021-10-11 00:26:23,980 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:26:23,984 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2021-10-11 00:26:23,995 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-11 00:26:24,021 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:26:24,021 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:26:24,021 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:26:24,021 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:26:24,021 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:26:24,022 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:26:24,022 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:26:24,022 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:26:24,043 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states. [2021-10-11 00:26:24,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-11 00:26:24,050 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:26:24,050 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:26:24,051 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:26:24,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:26:24,057 INFO L82 PathProgramCache]: Analyzing trace with hash 1937289636, now seen corresponding path program 1 times [2021-10-11 00:26:24,066 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:26:24,066 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347546888] [2021-10-11 00:26:24,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:26:24,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:26:24,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:26:24,325 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347546888] [2021-10-11 00:26:24,326 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:26:24,326 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:26:24,327 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216171489] [2021-10-11 00:26:24,331 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 00:26:24,332 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:26:24,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 00:26:24,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 00:26:24,348 INFO L87 Difference]: Start difference. First operand 191 states. Second operand 2 states. [2021-10-11 00:26:24,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:26:24,389 INFO L93 Difference]: Finished difference Result 376 states and 575 transitions. [2021-10-11 00:26:24,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 00:26:24,391 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2021-10-11 00:26:24,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:26:24,403 INFO L225 Difference]: With dead ends: 376 [2021-10-11 00:26:24,403 INFO L226 Difference]: Without dead ends: 187 [2021-10-11 00:26:24,407 INFO L677 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 [2021-10-11 00:26:24,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2021-10-11 00:26:24,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 187. [2021-10-11 00:26:24,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2021-10-11 00:26:24,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 279 transitions. [2021-10-11 00:26:24,462 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 279 transitions. Word has length 16 [2021-10-11 00:26:24,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:26:24,462 INFO L481 AbstractCegarLoop]: Abstraction has 187 states and 279 transitions. [2021-10-11 00:26:24,462 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 00:26:24,463 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 279 transitions. [2021-10-11 00:26:24,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-11 00:26:24,464 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:26:24,464 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:26:24,465 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 00:26:24,465 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:26:24,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:26:24,466 INFO L82 PathProgramCache]: Analyzing trace with hash 890532739, now seen corresponding path program 1 times [2021-10-11 00:26:24,466 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:26:24,467 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631437407] [2021-10-11 00:26:24,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:26:24,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:26:24,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:26:24,639 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631437407] [2021-10-11 00:26:24,640 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:26:24,642 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:26:24,643 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668451124] [2021-10-11 00:26:24,644 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:26:24,646 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:26:24,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:26:24,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:26:24,651 INFO L87 Difference]: Start difference. First operand 187 states and 279 transitions. Second operand 3 states. [2021-10-11 00:26:24,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:26:24,679 INFO L93 Difference]: Finished difference Result 187 states and 279 transitions. [2021-10-11 00:26:24,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:26:24,680 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2021-10-11 00:26:24,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:26:24,685 INFO L225 Difference]: With dead ends: 187 [2021-10-11 00:26:24,686 INFO L226 Difference]: Without dead ends: 73 [2021-10-11 00:26:24,687 INFO L677 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 [2021-10-11 00:26:24,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-10-11 00:26:24,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2021-10-11 00:26:24,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2021-10-11 00:26:24,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 108 transitions. [2021-10-11 00:26:24,694 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 108 transitions. Word has length 17 [2021-10-11 00:26:24,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:26:24,695 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 108 transitions. [2021-10-11 00:26:24,695 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:26:24,695 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 108 transitions. [2021-10-11 00:26:24,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-11 00:26:24,696 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:26:24,696 INFO L422 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] [2021-10-11 00:26:24,697 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 00:26:24,697 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:26:24,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:26:24,698 INFO L82 PathProgramCache]: Analyzing trace with hash 1577730230, now seen corresponding path program 1 times [2021-10-11 00:26:24,698 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:26:24,698 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755211621] [2021-10-11 00:26:24,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:26:24,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:26:24,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:26:24,854 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755211621] [2021-10-11 00:26:24,854 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:26:24,854 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:26:24,854 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819866777] [2021-10-11 00:26:24,855 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:26:24,855 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:26:24,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:26:24,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:26:24,856 INFO L87 Difference]: Start difference. First operand 73 states and 108 transitions. Second operand 5 states. [2021-10-11 00:26:24,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:26:24,949 INFO L93 Difference]: Finished difference Result 163 states and 244 transitions. [2021-10-11 00:26:24,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 00:26:24,950 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2021-10-11 00:26:24,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:26:24,951 INFO L225 Difference]: With dead ends: 163 [2021-10-11 00:26:24,951 INFO L226 Difference]: Without dead ends: 96 [2021-10-11 00:26:24,953 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-11 00:26:24,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2021-10-11 00:26:24,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 92. [2021-10-11 00:26:24,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2021-10-11 00:26:24,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 137 transitions. [2021-10-11 00:26:24,980 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 137 transitions. Word has length 22 [2021-10-11 00:26:24,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:26:24,981 INFO L481 AbstractCegarLoop]: Abstraction has 92 states and 137 transitions. [2021-10-11 00:26:24,981 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:26:24,981 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 137 transitions. [2021-10-11 00:26:24,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-11 00:26:24,983 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:26:24,983 INFO L422 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] [2021-10-11 00:26:24,984 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 00:26:24,984 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:26:24,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:26:24,985 INFO L82 PathProgramCache]: Analyzing trace with hash 792163456, now seen corresponding path program 1 times [2021-10-11 00:26:24,986 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:26:24,986 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687800693] [2021-10-11 00:26:24,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:26:25,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:26:25,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:26:25,114 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687800693] [2021-10-11 00:26:25,115 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:26:25,115 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:26:25,116 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417707792] [2021-10-11 00:26:25,117 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:26:25,117 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:26:25,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:26:25,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:26:25,121 INFO L87 Difference]: Start difference. First operand 92 states and 137 transitions. Second operand 3 states. [2021-10-11 00:26:25,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:26:25,189 INFO L93 Difference]: Finished difference Result 187 states and 280 transitions. [2021-10-11 00:26:25,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:26:25,190 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2021-10-11 00:26:25,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:26:25,193 INFO L225 Difference]: With dead ends: 187 [2021-10-11 00:26:25,193 INFO L226 Difference]: Without dead ends: 101 [2021-10-11 00:26:25,197 INFO L677 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 [2021-10-11 00:26:25,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2021-10-11 00:26:25,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 99. [2021-10-11 00:26:25,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2021-10-11 00:26:25,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 141 transitions. [2021-10-11 00:26:25,222 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 141 transitions. Word has length 25 [2021-10-11 00:26:25,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:26:25,223 INFO L481 AbstractCegarLoop]: Abstraction has 99 states and 141 transitions. [2021-10-11 00:26:25,223 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:26:25,223 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 141 transitions. [2021-10-11 00:26:25,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-11 00:26:25,229 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:26:25,229 INFO L422 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] [2021-10-11 00:26:25,229 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-11 00:26:25,229 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:26:25,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:26:25,230 INFO L82 PathProgramCache]: Analyzing trace with hash 1022954699, now seen corresponding path program 1 times [2021-10-11 00:26:25,230 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:26:25,230 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631471589] [2021-10-11 00:26:25,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:26:25,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:26:25,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:26:25,303 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631471589] [2021-10-11 00:26:25,303 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:26:25,303 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 00:26:25,303 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952012044] [2021-10-11 00:26:25,304 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:26:25,304 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:26:25,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:26:25,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:26:25,305 INFO L87 Difference]: Start difference. First operand 99 states and 141 transitions. Second operand 5 states. [2021-10-11 00:26:25,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:26:25,433 INFO L93 Difference]: Finished difference Result 485 states and 703 transitions. [2021-10-11 00:26:25,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-11 00:26:25,434 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2021-10-11 00:26:25,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:26:25,438 INFO L225 Difference]: With dead ends: 485 [2021-10-11 00:26:25,438 INFO L226 Difference]: Without dead ends: 392 [2021-10-11 00:26:25,439 INFO L677 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 [2021-10-11 00:26:25,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2021-10-11 00:26:25,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 184. [2021-10-11 00:26:25,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2021-10-11 00:26:25,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 260 transitions. [2021-10-11 00:26:25,466 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 260 transitions. Word has length 25 [2021-10-11 00:26:25,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:26:25,467 INFO L481 AbstractCegarLoop]: Abstraction has 184 states and 260 transitions. [2021-10-11 00:26:25,467 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:26:25,467 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 260 transitions. [2021-10-11 00:26:25,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-11 00:26:25,469 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:26:25,469 INFO L422 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] [2021-10-11 00:26:25,469 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-11 00:26:25,470 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:26:25,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:26:25,471 INFO L82 PathProgramCache]: Analyzing trace with hash 819147605, now seen corresponding path program 1 times [2021-10-11 00:26:25,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:26:25,471 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90765297] [2021-10-11 00:26:25,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:26:25,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:26:25,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:26:25,580 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90765297] [2021-10-11 00:26:25,581 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:26:25,581 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 00:26:25,581 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719237305] [2021-10-11 00:26:25,583 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:26:25,583 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:26:25,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:26:25,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:26:25,585 INFO L87 Difference]: Start difference. First operand 184 states and 260 transitions. Second operand 5 states. [2021-10-11 00:26:25,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:26:25,753 INFO L93 Difference]: Finished difference Result 522 states and 741 transitions. [2021-10-11 00:26:25,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-11 00:26:25,754 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2021-10-11 00:26:25,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:26:25,758 INFO L225 Difference]: With dead ends: 522 [2021-10-11 00:26:25,758 INFO L226 Difference]: Without dead ends: 520 [2021-10-11 00:26:25,759 INFO L677 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 [2021-10-11 00:26:25,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2021-10-11 00:26:25,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 184. [2021-10-11 00:26:25,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2021-10-11 00:26:25,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 258 transitions. [2021-10-11 00:26:25,780 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 258 transitions. Word has length 26 [2021-10-11 00:26:25,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:26:25,781 INFO L481 AbstractCegarLoop]: Abstraction has 184 states and 258 transitions. [2021-10-11 00:26:25,781 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:26:25,781 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 258 transitions. [2021-10-11 00:26:25,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-11 00:26:25,782 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:26:25,783 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:26:25,783 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-11 00:26:25,783 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:26:25,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:26:25,784 INFO L82 PathProgramCache]: Analyzing trace with hash -1010263109, now seen corresponding path program 1 times [2021-10-11 00:26:25,784 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:26:25,784 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243537500] [2021-10-11 00:26:25,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:26:25,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:26:25,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:26:25,867 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243537500] [2021-10-11 00:26:25,867 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:26:25,867 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:26:25,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141251685] [2021-10-11 00:26:25,868 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:26:25,868 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:26:25,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:26:25,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:26:25,869 INFO L87 Difference]: Start difference. First operand 184 states and 258 transitions. Second operand 5 states. [2021-10-11 00:26:25,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:26:25,976 INFO L93 Difference]: Finished difference Result 534 states and 740 transitions. [2021-10-11 00:26:25,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 00:26:25,977 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2021-10-11 00:26:25,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:26:25,980 INFO L225 Difference]: With dead ends: 534 [2021-10-11 00:26:25,980 INFO L226 Difference]: Without dead ends: 356 [2021-10-11 00:26:25,981 INFO L677 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 [2021-10-11 00:26:25,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2021-10-11 00:26:26,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 202. [2021-10-11 00:26:26,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2021-10-11 00:26:26,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 276 transitions. [2021-10-11 00:26:26,002 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 276 transitions. Word has length 32 [2021-10-11 00:26:26,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:26:26,002 INFO L481 AbstractCegarLoop]: Abstraction has 202 states and 276 transitions. [2021-10-11 00:26:26,003 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:26:26,003 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 276 transitions. [2021-10-11 00:26:26,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-11 00:26:26,004 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:26:26,004 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:26:26,004 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-11 00:26:26,005 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:26:26,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:26:26,005 INFO L82 PathProgramCache]: Analyzing trace with hash -1403290119, now seen corresponding path program 1 times [2021-10-11 00:26:26,006 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:26:26,006 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316857931] [2021-10-11 00:26:26,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:26:26,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:26:26,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:26:26,089 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316857931] [2021-10-11 00:26:26,090 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:26:26,090 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-11 00:26:26,090 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869245494] [2021-10-11 00:26:26,091 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 00:26:26,091 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:26:26,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 00:26:26,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:26:26,092 INFO L87 Difference]: Start difference. First operand 202 states and 276 transitions. Second operand 6 states. [2021-10-11 00:26:26,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:26:26,233 INFO L93 Difference]: Finished difference Result 584 states and 790 transitions. [2021-10-11 00:26:26,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 00:26:26,234 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2021-10-11 00:26:26,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:26:26,237 INFO L225 Difference]: With dead ends: 584 [2021-10-11 00:26:26,237 INFO L226 Difference]: Without dead ends: 388 [2021-10-11 00:26:26,238 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-10-11 00:26:26,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2021-10-11 00:26:26,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 214. [2021-10-11 00:26:26,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2021-10-11 00:26:26,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 288 transitions. [2021-10-11 00:26:26,263 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 288 transitions. Word has length 32 [2021-10-11 00:26:26,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:26:26,264 INFO L481 AbstractCegarLoop]: Abstraction has 214 states and 288 transitions. [2021-10-11 00:26:26,264 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 00:26:26,264 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 288 transitions. [2021-10-11 00:26:26,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-11 00:26:26,265 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:26:26,265 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:26:26,266 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-11 00:26:26,266 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:26:26,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:26:26,266 INFO L82 PathProgramCache]: Analyzing trace with hash -1145124681, now seen corresponding path program 1 times [2021-10-11 00:26:26,267 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:26:26,267 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161562333] [2021-10-11 00:26:26,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:26:26,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:26:26,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:26:26,320 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161562333] [2021-10-11 00:26:26,324 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:26:26,325 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:26:26,325 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978591359] [2021-10-11 00:26:26,326 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:26:26,326 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:26:26,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:26:26,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:26:26,328 INFO L87 Difference]: Start difference. First operand 214 states and 288 transitions. Second operand 3 states. [2021-10-11 00:26:26,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:26:26,410 INFO L93 Difference]: Finished difference Result 512 states and 688 transitions. [2021-10-11 00:26:26,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:26:26,411 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2021-10-11 00:26:26,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:26:26,413 INFO L225 Difference]: With dead ends: 512 [2021-10-11 00:26:26,413 INFO L226 Difference]: Without dead ends: 304 [2021-10-11 00:26:26,414 INFO L677 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 [2021-10-11 00:26:26,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2021-10-11 00:26:26,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 304. [2021-10-11 00:26:26,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 304 states. [2021-10-11 00:26:26,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 400 transitions. [2021-10-11 00:26:26,450 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 400 transitions. Word has length 32 [2021-10-11 00:26:26,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:26:26,451 INFO L481 AbstractCegarLoop]: Abstraction has 304 states and 400 transitions. [2021-10-11 00:26:26,451 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:26:26,451 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 400 transitions. [2021-10-11 00:26:26,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-11 00:26:26,454 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:26:26,454 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:26:26,454 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-11 00:26:26,455 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:26:26,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:26:26,456 INFO L82 PathProgramCache]: Analyzing trace with hash 2078796085, now seen corresponding path program 1 times [2021-10-11 00:26:26,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:26:26,456 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105029075] [2021-10-11 00:26:26,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:26:26,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:26:26,556 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:26:26,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:26:26,634 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:26:26,711 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:26:26,711 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 00:26:26,711 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-11 00:26:26,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:26:26 BoogieIcfgContainer [2021-10-11 00:26:26,854 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:26:26,854 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:26:26,855 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:26:26,855 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:26:26,860 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:26:23" (3/4) ... [2021-10-11 00:26:26,862 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 00:26:26,996 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7aff0d-5134-438b-ba99-bede1c6b2db0/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:26:26,996 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:26:26,998 INFO L168 Benchmark]: Toolchain (without parser) took 5067.46 ms. Allocated memory was 100.7 MB in the beginning and 157.3 MB in the end (delta: 56.6 MB). Free memory was 67.3 MB in the beginning and 60.5 MB in the end (delta: 6.8 MB). Peak memory consumption was 63.8 MB. Max. memory is 16.1 GB. [2021-10-11 00:26:26,999 INFO L168 Benchmark]: CDTParser took 0.55 ms. Allocated memory is still 100.7 MB. Free memory was 58.5 MB in the beginning and 58.5 MB in the end (delta: 76.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:26:27,000 INFO L168 Benchmark]: CACSL2BoogieTranslator took 532.64 ms. Allocated memory is still 100.7 MB. Free memory was 67.1 MB in the beginning and 64.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:26:27,000 INFO L168 Benchmark]: Boogie Procedure Inliner took 95.85 ms. Allocated memory is still 100.7 MB. Free memory was 64.5 MB in the beginning and 59.3 MB in the end (delta: 5.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-11 00:26:27,001 INFO L168 Benchmark]: Boogie Preprocessor took 97.00 ms. Allocated memory is still 100.7 MB. Free memory was 59.3 MB in the beginning and 55.8 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 00:26:27,001 INFO L168 Benchmark]: RCFGBuilder took 1292.04 ms. Allocated memory was 100.7 MB in the beginning and 123.7 MB in the end (delta: 23.1 MB). Free memory was 55.8 MB in the beginning and 68.1 MB in the end (delta: -12.3 MB). Peak memory consumption was 28.2 MB. Max. memory is 16.1 GB. [2021-10-11 00:26:27,002 INFO L168 Benchmark]: TraceAbstraction took 2895.02 ms. Allocated memory was 123.7 MB in the beginning and 157.3 MB in the end (delta: 33.6 MB). Free memory was 67.2 MB in the beginning and 75.2 MB in the end (delta: -8.1 MB). Peak memory consumption was 25.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:26:27,002 INFO L168 Benchmark]: Witness Printer took 141.88 ms. Allocated memory is still 157.3 MB. Free memory was 75.2 MB in the beginning and 60.5 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-11 00:26:27,005 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.55 ms. Allocated memory is still 100.7 MB. Free memory was 58.5 MB in the beginning and 58.5 MB in the end (delta: 76.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 532.64 ms. Allocated memory is still 100.7 MB. Free memory was 67.1 MB in the beginning and 64.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 95.85 ms. Allocated memory is still 100.7 MB. Free memory was 64.5 MB in the beginning and 59.3 MB in the end (delta: 5.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 97.00 ms. Allocated memory is still 100.7 MB. Free memory was 59.3 MB in the beginning and 55.8 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1292.04 ms. Allocated memory was 100.7 MB in the beginning and 123.7 MB in the end (delta: 23.1 MB). Free memory was 55.8 MB in the beginning and 68.1 MB in the end (delta: -12.3 MB). Peak memory consumption was 28.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2895.02 ms. Allocated memory was 123.7 MB in the beginning and 157.3 MB in the end (delta: 33.6 MB). Free memory was 67.2 MB in the beginning and 75.2 MB in the end (delta: -8.1 MB). Peak memory consumption was 25.4 MB. Max. memory is 16.1 GB. * Witness Printer took 141.88 ms. Allocated memory is still 157.3 MB. Free memory was 75.2 MB in the beginning and 60.5 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 808]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L492] int pumpRunning = 0; [L493] int systemActive = 1; [L813] int cleanupTimeShifts = 4; [L910] int waterLevel = 1; [L911] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L886] int retValue_acc ; [L887] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L768] int retValue_acc ; [L771] retValue_acc = 1 [L772] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L893] tmp = valid_product() [L895] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L415] int splverifierCounter ; [L416] int tmp ; [L417] int tmp___0 ; [L418] int tmp___1 ; [L419] int tmp___2 ; [L422] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L424] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L426] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L432] tmp = __VERIFIER_nondet_int() [L434] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L928] COND TRUE waterLevel < 2 [L929] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L442] tmp___0 = __VERIFIER_nondet_int() [L444] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L940] COND FALSE !(\read(methaneLevelCritical)) [L943] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L452] tmp___2 = __VERIFIER_nondet_int() [L454] COND TRUE \read(tmp___2) [L734] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L500] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L507] COND TRUE \read(systemActive) [L581] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L584] COND FALSE !(\read(pumpRunning)) [L555] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L558] COND FALSE !(\read(pumpRunning)) [L529] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L532] COND TRUE ! pumpRunning [L678] int retValue_acc ; [L679] int tmp ; [L680] int tmp___0 ; [L990] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L993] COND FALSE !(waterLevel < 2) [L997] retValue_acc = 0 [L998] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L684] tmp = isHighWaterSensorDry() [L686] COND FALSE !(\read(tmp)) [L689] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L691] retValue_acc = tmp___0 [L692] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L534] tmp = isHighWaterLevel() [L536] COND TRUE \read(tmp) [L609] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L779] int tmp ; [L780] int tmp___0 ; [L949] int retValue_acc ; [L952] retValue_acc = methaneLevelCritical [L953] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L784] tmp = isMethaneLevelCritical() [L786] COND TRUE \read(tmp) [L633] int retValue_acc ; [L636] retValue_acc = pumpRunning [L637] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L788] tmp___0 = isPumpRunning() [L790] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L808] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 191 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.6s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1182 SDtfs, 1711 SDslu, 1365 SDs, 0 SdLazy, 207 SolverSat, 56 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 59 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=304occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 878 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 260 NumberOfCodeBlocks, 260 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 218 ConstructedInterpolants, 0 QuantifiedInterpolants, 10664 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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! Received shutdown request...