./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/systemc/transmitter.01.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_6c354092-aac8-4327-8df9-ca4cbc6f96d5/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c354092-aac8-4327-8df9-ca4cbc6f96d5/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_6c354092-aac8-4327-8df9-ca4cbc6f96d5/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c354092-aac8-4327-8df9-ca4cbc6f96d5/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/systemc/transmitter.01.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c354092-aac8-4327-8df9-ca4cbc6f96d5/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_6c354092-aac8-4327-8df9-ca4cbc6f96d5/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 278371fb5fb32cd768dabde497dd9d5964ee74d9 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 00:31:01,643 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:31:01,646 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:31:01,678 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:31:01,679 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:31:01,685 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:31:01,687 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:31:01,689 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:31:01,691 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:31:01,693 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:31:01,694 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:31:01,696 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:31:01,696 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:31:01,697 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:31:01,699 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:31:01,700 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:31:01,701 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:31:01,702 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:31:01,705 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:31:01,707 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:31:01,709 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:31:01,711 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:31:01,712 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:31:01,713 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:31:01,717 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:31:01,717 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:31:01,718 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:31:01,719 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:31:01,720 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:31:01,721 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:31:01,722 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:31:01,723 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:31:01,724 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:31:01,725 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:31:01,726 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:31:01,727 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:31:01,727 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:31:01,728 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:31:01,728 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:31:01,729 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:31:01,730 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:31:01,731 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c354092-aac8-4327-8df9-ca4cbc6f96d5/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-11 00:31:01,754 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:31:01,755 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:31:01,756 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:31:01,756 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:31:01,756 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:31:01,757 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:31:01,757 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:31:01,757 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:31:01,758 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:31:01,758 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:31:01,758 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:31:01,758 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:31:01,758 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:31:01,759 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:31:01,759 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:31:01,759 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:31:01,759 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:31:01,760 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:31:01,760 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:31:01,760 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:31:01,760 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:31:01,761 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:31:01,761 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:31:01,761 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:31:01,761 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:31:01,762 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:31:01,762 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:31:01,762 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:31:01,762 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_6c354092-aac8-4327-8df9-ca4cbc6f96d5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c354092-aac8-4327-8df9-ca4cbc6f96d5/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 278371fb5fb32cd768dabde497dd9d5964ee74d9 [2021-10-11 00:31:02,025 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:31:02,048 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:31:02,051 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:31:02,053 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:31:02,058 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:31:02,059 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c354092-aac8-4327-8df9-ca4cbc6f96d5/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/systemc/transmitter.01.cil.c [2021-10-11 00:31:02,126 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c354092-aac8-4327-8df9-ca4cbc6f96d5/bin/uautomizer-Z5i5R5N3CC/data/9cb127fd5/5684689013494801aeb871443a09b178/FLAGfbfd10329 [2021-10-11 00:31:02,606 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:31:02,607 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c354092-aac8-4327-8df9-ca4cbc6f96d5/sv-benchmarks/c/systemc/transmitter.01.cil.c [2021-10-11 00:31:02,616 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c354092-aac8-4327-8df9-ca4cbc6f96d5/bin/uautomizer-Z5i5R5N3CC/data/9cb127fd5/5684689013494801aeb871443a09b178/FLAGfbfd10329 [2021-10-11 00:31:02,952 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c354092-aac8-4327-8df9-ca4cbc6f96d5/bin/uautomizer-Z5i5R5N3CC/data/9cb127fd5/5684689013494801aeb871443a09b178 [2021-10-11 00:31:02,956 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:31:02,958 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:31:02,963 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:31:02,963 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:31:02,966 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:31:02,968 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:31:02" (1/1) ... [2021-10-11 00:31:02,970 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6964ae79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:02, skipping insertion in model container [2021-10-11 00:31:02,971 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:31:02" (1/1) ... [2021-10-11 00:31:02,978 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:31:03,015 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:31:03,195 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_6c354092-aac8-4327-8df9-ca4cbc6f96d5/sv-benchmarks/c/systemc/transmitter.01.cil.c[401,414] [2021-10-11 00:31:03,260 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:31:03,269 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:31:03,283 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_6c354092-aac8-4327-8df9-ca4cbc6f96d5/sv-benchmarks/c/systemc/transmitter.01.cil.c[401,414] [2021-10-11 00:31:03,306 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:31:03,322 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:31:03,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:03 WrapperNode [2021-10-11 00:31:03,323 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:31:03,324 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:31:03,325 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:31:03,325 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:31:03,337 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:03" (1/1) ... [2021-10-11 00:31:03,344 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:03" (1/1) ... [2021-10-11 00:31:03,380 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:31:03,381 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:31:03,381 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:31:03,381 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:31:03,395 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:03" (1/1) ... [2021-10-11 00:31:03,395 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:03" (1/1) ... [2021-10-11 00:31:03,407 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:03" (1/1) ... [2021-10-11 00:31:03,407 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:03" (1/1) ... [2021-10-11 00:31:03,420 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:03" (1/1) ... [2021-10-11 00:31:03,428 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:03" (1/1) ... [2021-10-11 00:31:03,431 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:03" (1/1) ... [2021-10-11 00:31:03,436 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:31:03,437 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:31:03,437 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:31:03,437 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:31:03,438 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:03" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c354092-aac8-4327-8df9-ca4cbc6f96d5/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 00:31:03,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:31:03,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 00:31:03,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:31:03,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:31:04,021 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:31:04,021 INFO L299 CfgBuilder]: Removed 73 assume(true) statements. [2021-10-11 00:31:04,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:31:04 BoogieIcfgContainer [2021-10-11 00:31:04,023 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:31:04,025 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:31:04,026 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:31:04,029 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:31:04,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:31:02" (1/3) ... [2021-10-11 00:31:04,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@764c1973 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:31:04, skipping insertion in model container [2021-10-11 00:31:04,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:03" (2/3) ... [2021-10-11 00:31:04,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@764c1973 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:31:04, skipping insertion in model container [2021-10-11 00:31:04,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:31:04" (3/3) ... [2021-10-11 00:31:04,033 INFO L111 eAbstractionObserver]: Analyzing ICFG transmitter.01.cil.c [2021-10-11 00:31:04,048 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:31:04,052 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 00:31:04,081 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 00:31:04,108 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:31:04,108 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:31:04,108 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:31:04,109 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:31:04,109 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:31:04,109 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:31:04,109 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:31:04,109 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:31:04,152 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states. [2021-10-11 00:31:04,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-10-11 00:31:04,161 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:31:04,162 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, 1, 1, 1, 1] [2021-10-11 00:31:04,162 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:31:04,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:31:04,167 INFO L82 PathProgramCache]: Analyzing trace with hash 827300887, now seen corresponding path program 1 times [2021-10-11 00:31:04,174 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:31:04,174 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925328562] [2021-10-11 00:31:04,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:31:04,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:31:04,375 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 00:31:04,376 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925328562] [2021-10-11 00:31:04,377 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:31:04,378 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:31:04,379 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757693852] [2021-10-11 00:31:04,384 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:31:04,384 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:31:04,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:31:04,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:31:04,401 INFO L87 Difference]: Start difference. First operand 122 states. Second operand 3 states. [2021-10-11 00:31:04,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:31:04,455 INFO L93 Difference]: Finished difference Result 239 states and 373 transitions. [2021-10-11 00:31:04,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:31:04,457 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2021-10-11 00:31:04,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:31:04,469 INFO L225 Difference]: With dead ends: 239 [2021-10-11 00:31:04,469 INFO L226 Difference]: Without dead ends: 118 [2021-10-11 00:31:04,473 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 00:31:04,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-10-11 00:31:04,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2021-10-11 00:31:04,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2021-10-11 00:31:04,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 174 transitions. [2021-10-11 00:31:04,529 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 174 transitions. Word has length 37 [2021-10-11 00:31:04,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:31:04,530 INFO L481 AbstractCegarLoop]: Abstraction has 118 states and 174 transitions. [2021-10-11 00:31:04,530 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:31:04,531 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 174 transitions. [2021-10-11 00:31:04,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-10-11 00:31:04,534 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:31:04,535 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, 1, 1, 1, 1] [2021-10-11 00:31:04,535 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 00:31:04,536 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:31:04,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:31:04,539 INFO L82 PathProgramCache]: Analyzing trace with hash 899687445, now seen corresponding path program 1 times [2021-10-11 00:31:04,539 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:31:04,540 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75947146] [2021-10-11 00:31:04,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:31:04,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:31:04,600 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 00:31:04,601 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75947146] [2021-10-11 00:31:04,602 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:31:04,602 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:31:04,604 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997716695] [2021-10-11 00:31:04,605 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:31:04,606 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:31:04,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:31:04,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:31:04,610 INFO L87 Difference]: Start difference. First operand 118 states and 174 transitions. Second operand 3 states. [2021-10-11 00:31:04,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:31:04,725 INFO L93 Difference]: Finished difference Result 308 states and 454 transitions. [2021-10-11 00:31:04,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:31:04,726 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2021-10-11 00:31:04,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:31:04,729 INFO L225 Difference]: With dead ends: 308 [2021-10-11 00:31:04,729 INFO L226 Difference]: Without dead ends: 196 [2021-10-11 00:31:04,731 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 00:31:04,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2021-10-11 00:31:04,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 194. [2021-10-11 00:31:04,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2021-10-11 00:31:04,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 280 transitions. [2021-10-11 00:31:04,769 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 280 transitions. Word has length 37 [2021-10-11 00:31:04,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:31:04,770 INFO L481 AbstractCegarLoop]: Abstraction has 194 states and 280 transitions. [2021-10-11 00:31:04,770 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:31:04,770 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 280 transitions. [2021-10-11 00:31:04,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-10-11 00:31:04,772 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:31:04,772 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, 1, 1, 1, 1] [2021-10-11 00:31:04,772 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 00:31:04,773 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:31:04,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:31:04,774 INFO L82 PathProgramCache]: Analyzing trace with hash -413900843, now seen corresponding path program 1 times [2021-10-11 00:31:04,774 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:31:04,774 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725904785] [2021-10-11 00:31:04,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:31:04,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:31:04,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:31:04,822 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725904785] [2021-10-11 00:31:04,822 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:31:04,822 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:31:04,823 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719908955] [2021-10-11 00:31:04,823 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:31:04,824 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:31:04,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:31:04,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:31:04,825 INFO L87 Difference]: Start difference. First operand 194 states and 280 transitions. Second operand 3 states. [2021-10-11 00:31:04,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:31:04,886 INFO L93 Difference]: Finished difference Result 381 states and 551 transitions. [2021-10-11 00:31:04,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:31:04,886 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2021-10-11 00:31:04,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:31:04,889 INFO L225 Difference]: With dead ends: 381 [2021-10-11 00:31:04,889 INFO L226 Difference]: Without dead ends: 194 [2021-10-11 00:31:04,890 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 00:31:04,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2021-10-11 00:31:04,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2021-10-11 00:31:04,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2021-10-11 00:31:04,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 272 transitions. [2021-10-11 00:31:04,913 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 272 transitions. Word has length 37 [2021-10-11 00:31:04,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:31:04,914 INFO L481 AbstractCegarLoop]: Abstraction has 194 states and 272 transitions. [2021-10-11 00:31:04,914 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:31:04,914 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 272 transitions. [2021-10-11 00:31:04,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-10-11 00:31:04,915 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:31:04,916 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, 1, 1, 1, 1] [2021-10-11 00:31:04,916 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 00:31:04,916 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:31:04,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:31:04,917 INFO L82 PathProgramCache]: Analyzing trace with hash -733369323, now seen corresponding path program 1 times [2021-10-11 00:31:04,917 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:31:04,917 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750315520] [2021-10-11 00:31:04,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:31:04,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:31:04,974 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 00:31:04,975 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750315520] [2021-10-11 00:31:04,975 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:31:04,975 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:31:04,976 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049103160] [2021-10-11 00:31:04,977 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:31:04,978 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:31:04,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:31:04,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:31:04,983 INFO L87 Difference]: Start difference. First operand 194 states and 272 transitions. Second operand 3 states. [2021-10-11 00:31:05,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:31:05,049 INFO L93 Difference]: Finished difference Result 380 states and 534 transitions. [2021-10-11 00:31:05,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:31:05,050 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2021-10-11 00:31:05,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:31:05,058 INFO L225 Difference]: With dead ends: 380 [2021-10-11 00:31:05,058 INFO L226 Difference]: Without dead ends: 194 [2021-10-11 00:31:05,062 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 00:31:05,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2021-10-11 00:31:05,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2021-10-11 00:31:05,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2021-10-11 00:31:05,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 260 transitions. [2021-10-11 00:31:05,104 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 260 transitions. Word has length 37 [2021-10-11 00:31:05,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:31:05,105 INFO L481 AbstractCegarLoop]: Abstraction has 194 states and 260 transitions. [2021-10-11 00:31:05,105 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:31:05,105 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 260 transitions. [2021-10-11 00:31:05,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-10-11 00:31:05,106 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:31:05,106 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, 1, 1, 1, 1] [2021-10-11 00:31:05,107 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-11 00:31:05,107 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:31:05,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:31:05,108 INFO L82 PathProgramCache]: Analyzing trace with hash -2103987404, now seen corresponding path program 1 times [2021-10-11 00:31:05,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:31:05,108 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912542421] [2021-10-11 00:31:05,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:31:05,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:31:05,160 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 00:31:05,161 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912542421] [2021-10-11 00:31:05,161 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:31:05,161 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:31:05,161 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624032021] [2021-10-11 00:31:05,162 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:31:05,162 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:31:05,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:31:05,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:31:05,163 INFO L87 Difference]: Start difference. First operand 194 states and 260 transitions. Second operand 5 states. [2021-10-11 00:31:05,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:31:05,302 INFO L93 Difference]: Finished difference Result 628 states and 846 transitions. [2021-10-11 00:31:05,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 00:31:05,302 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 37 [2021-10-11 00:31:05,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:31:05,305 INFO L225 Difference]: With dead ends: 628 [2021-10-11 00:31:05,305 INFO L226 Difference]: Without dead ends: 449 [2021-10-11 00:31:05,307 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 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 00:31:05,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2021-10-11 00:31:05,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 203. [2021-10-11 00:31:05,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2021-10-11 00:31:05,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 266 transitions. [2021-10-11 00:31:05,336 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 266 transitions. Word has length 37 [2021-10-11 00:31:05,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:31:05,337 INFO L481 AbstractCegarLoop]: Abstraction has 203 states and 266 transitions. [2021-10-11 00:31:05,337 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:31:05,337 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 266 transitions. [2021-10-11 00:31:05,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-10-11 00:31:05,341 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:31:05,341 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, 1, 1, 1, 1] [2021-10-11 00:31:05,341 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-11 00:31:05,342 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:31:05,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:31:05,342 INFO L82 PathProgramCache]: Analyzing trace with hash 2056966386, now seen corresponding path program 1 times [2021-10-11 00:31:05,342 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:31:05,343 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483353940] [2021-10-11 00:31:05,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:31:05,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:31:05,452 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 00:31:05,452 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483353940] [2021-10-11 00:31:05,453 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:31:05,453 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:31:05,453 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921894749] [2021-10-11 00:31:05,455 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:31:05,455 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:31:05,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:31:05,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:31:05,458 INFO L87 Difference]: Start difference. First operand 203 states and 266 transitions. Second operand 5 states. [2021-10-11 00:31:05,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:31:05,548 INFO L93 Difference]: Finished difference Result 540 states and 716 transitions. [2021-10-11 00:31:05,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 00:31:05,549 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 37 [2021-10-11 00:31:05,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:31:05,551 INFO L225 Difference]: With dead ends: 540 [2021-10-11 00:31:05,551 INFO L226 Difference]: Without dead ends: 359 [2021-10-11 00:31:05,552 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 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 00:31:05,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2021-10-11 00:31:05,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 209. [2021-10-11 00:31:05,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2021-10-11 00:31:05,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 268 transitions. [2021-10-11 00:31:05,573 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 268 transitions. Word has length 37 [2021-10-11 00:31:05,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:31:05,578 INFO L481 AbstractCegarLoop]: Abstraction has 209 states and 268 transitions. [2021-10-11 00:31:05,579 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:31:05,579 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 268 transitions. [2021-10-11 00:31:05,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-10-11 00:31:05,585 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:31:05,585 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, 1, 1, 1, 1] [2021-10-11 00:31:05,585 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-11 00:31:05,585 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:31:05,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:31:05,586 INFO L82 PathProgramCache]: Analyzing trace with hash 62821680, now seen corresponding path program 1 times [2021-10-11 00:31:05,586 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:31:05,586 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78925889] [2021-10-11 00:31:05,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:31:05,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:31:05,628 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 00:31:05,629 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78925889] [2021-10-11 00:31:05,629 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:31:05,629 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:31:05,629 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660687349] [2021-10-11 00:31:05,630 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:31:05,630 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:31:05,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:31:05,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:31:05,631 INFO L87 Difference]: Start difference. First operand 209 states and 268 transitions. Second operand 3 states. [2021-10-11 00:31:05,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:31:05,691 INFO L93 Difference]: Finished difference Result 554 states and 708 transitions. [2021-10-11 00:31:05,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:31:05,692 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2021-10-11 00:31:05,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:31:05,694 INFO L225 Difference]: With dead ends: 554 [2021-10-11 00:31:05,694 INFO L226 Difference]: Without dead ends: 370 [2021-10-11 00:31:05,695 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 00:31:05,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2021-10-11 00:31:05,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 355. [2021-10-11 00:31:05,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 355 states. [2021-10-11 00:31:05,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 443 transitions. [2021-10-11 00:31:05,726 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 443 transitions. Word has length 37 [2021-10-11 00:31:05,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:31:05,726 INFO L481 AbstractCegarLoop]: Abstraction has 355 states and 443 transitions. [2021-10-11 00:31:05,726 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:31:05,727 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 443 transitions. [2021-10-11 00:31:05,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-10-11 00:31:05,727 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:31:05,728 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, 1, 1, 1, 1, 1] [2021-10-11 00:31:05,728 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-11 00:31:05,728 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:31:05,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:31:05,728 INFO L82 PathProgramCache]: Analyzing trace with hash -1851829351, now seen corresponding path program 1 times [2021-10-11 00:31:05,729 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:31:05,729 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094161574] [2021-10-11 00:31:05,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:31:05,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:31:05,787 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 00:31:05,787 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094161574] [2021-10-11 00:31:05,787 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:31:05,787 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:31:05,787 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420454208] [2021-10-11 00:31:05,788 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:31:05,788 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:31:05,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:31:05,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:31:05,789 INFO L87 Difference]: Start difference. First operand 355 states and 443 transitions. Second operand 3 states. [2021-10-11 00:31:05,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:31:05,875 INFO L93 Difference]: Finished difference Result 967 states and 1214 transitions. [2021-10-11 00:31:05,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:31:05,875 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 38 [2021-10-11 00:31:05,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:31:05,879 INFO L225 Difference]: With dead ends: 967 [2021-10-11 00:31:05,880 INFO L226 Difference]: Without dead ends: 642 [2021-10-11 00:31:05,881 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 00:31:05,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2021-10-11 00:31:05,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 634. [2021-10-11 00:31:05,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 634 states. [2021-10-11 00:31:05,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 784 transitions. [2021-10-11 00:31:05,933 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 784 transitions. Word has length 38 [2021-10-11 00:31:05,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:31:05,933 INFO L481 AbstractCegarLoop]: Abstraction has 634 states and 784 transitions. [2021-10-11 00:31:05,933 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:31:05,933 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 784 transitions. [2021-10-11 00:31:05,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-10-11 00:31:05,934 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:31:05,934 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:31:05,934 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-11 00:31:05,935 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:31:05,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:31:05,935 INFO L82 PathProgramCache]: Analyzing trace with hash -1992530247, now seen corresponding path program 1 times [2021-10-11 00:31:05,935 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:31:05,936 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210483306] [2021-10-11 00:31:05,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:31:05,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:31:06,001 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:31:06,001 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210483306] [2021-10-11 00:31:06,001 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:31:06,001 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 00:31:06,002 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155857481] [2021-10-11 00:31:06,002 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 00:31:06,003 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:31:06,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:31:06,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:31:06,005 INFO L87 Difference]: Start difference. First operand 634 states and 784 transitions. Second operand 4 states. [2021-10-11 00:31:06,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:31:06,164 INFO L93 Difference]: Finished difference Result 1784 states and 2213 transitions. [2021-10-11 00:31:06,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 00:31:06,164 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2021-10-11 00:31:06,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:31:06,170 INFO L225 Difference]: With dead ends: 1784 [2021-10-11 00:31:06,170 INFO L226 Difference]: Without dead ends: 921 [2021-10-11 00:31:06,172 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:31:06,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2021-10-11 00:31:06,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 921. [2021-10-11 00:31:06,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 921 states. [2021-10-11 00:31:06,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1123 transitions. [2021-10-11 00:31:06,254 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1123 transitions. Word has length 51 [2021-10-11 00:31:06,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:31:06,255 INFO L481 AbstractCegarLoop]: Abstraction has 921 states and 1123 transitions. [2021-10-11 00:31:06,255 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 00:31:06,255 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1123 transitions. [2021-10-11 00:31:06,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-10-11 00:31:06,256 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:31:06,257 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:31:06,257 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-11 00:31:06,257 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:31:06,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:31:06,257 INFO L82 PathProgramCache]: Analyzing trace with hash 680531928, now seen corresponding path program 1 times [2021-10-11 00:31:06,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:31:06,259 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747247828] [2021-10-11 00:31:06,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:31:06,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:31:06,299 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:31:06,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:31:06,343 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:31:06,387 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:31:06,387 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 00:31:06,387 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-11 00:31:06,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:31:06 BoogieIcfgContainer [2021-10-11 00:31:06,517 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:31:06,517 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:31:06,517 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:31:06,518 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:31:06,524 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:31:04" (3/4) ... [2021-10-11 00:31:06,526 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 00:31:06,660 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c354092-aac8-4327-8df9-ca4cbc6f96d5/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:31:06,660 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:31:06,662 INFO L168 Benchmark]: Toolchain (without parser) took 3702.97 ms. Allocated memory was 107.0 MB in the beginning and 146.8 MB in the end (delta: 39.8 MB). Free memory was 67.9 MB in the beginning and 80.8 MB in the end (delta: -12.9 MB). Peak memory consumption was 26.2 MB. Max. memory is 16.1 GB. [2021-10-11 00:31:06,662 INFO L168 Benchmark]: CDTParser took 0.42 ms. Allocated memory is still 107.0 MB. Free memory is still 84.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:31:06,663 INFO L168 Benchmark]: CACSL2BoogieTranslator took 360.68 ms. Allocated memory is still 107.0 MB. Free memory was 67.7 MB in the beginning and 79.4 MB in the end (delta: -11.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:31:06,663 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.77 ms. Allocated memory is still 107.0 MB. Free memory was 79.4 MB in the beginning and 77.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:31:06,664 INFO L168 Benchmark]: Boogie Preprocessor took 55.38 ms. Allocated memory is still 107.0 MB. Free memory was 77.1 MB in the beginning and 75.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:31:06,664 INFO L168 Benchmark]: RCFGBuilder took 586.76 ms. Allocated memory is still 107.0 MB. Free memory was 75.1 MB in the beginning and 40.9 MB in the end (delta: 34.2 MB). Peak memory consumption was 35.7 MB. Max. memory is 16.1 GB. [2021-10-11 00:31:06,664 INFO L168 Benchmark]: TraceAbstraction took 2491.56 ms. Allocated memory was 107.0 MB in the beginning and 146.8 MB in the end (delta: 39.8 MB). Free memory was 40.4 MB in the beginning and 89.2 MB in the end (delta: -48.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:31:06,665 INFO L168 Benchmark]: Witness Printer took 142.82 ms. Allocated memory is still 146.8 MB. Free memory was 89.2 MB in the beginning and 80.8 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:31:06,667 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42 ms. Allocated memory is still 107.0 MB. Free memory is still 84.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 360.68 ms. Allocated memory is still 107.0 MB. Free memory was 67.7 MB in the beginning and 79.4 MB in the end (delta: -11.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 55.77 ms. Allocated memory is still 107.0 MB. Free memory was 79.4 MB in the beginning and 77.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 55.38 ms. Allocated memory is still 107.0 MB. Free memory was 77.1 MB in the beginning and 75.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 586.76 ms. Allocated memory is still 107.0 MB. Free memory was 75.1 MB in the beginning and 40.9 MB in the end (delta: 34.2 MB). Peak memory consumption was 35.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2491.56 ms. Allocated memory was 107.0 MB in the beginning and 146.8 MB in the end (delta: 39.8 MB). Free memory was 40.4 MB in the beginning and 89.2 MB in the end (delta: -48.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 142.82 ms. Allocated memory is still 146.8 MB. Free memory was 89.2 MB in the beginning and 80.8 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 13]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L17] int m_pc = 0; [L18] int t1_pc = 0; [L19] int m_st ; [L20] int t1_st ; [L21] int m_i ; [L22] int t1_i ; [L23] int M_E = 2; [L24] int T1_E = 2; [L25] int E_1 = 2; VAL [E_1=2, M_E=2, m_i=0, m_pc=0, m_st=0, T1_E=2, t1_i=0, t1_pc=0, t1_st=0] [L441] int __retres1 ; [L356] m_i = 1 [L357] t1_i = 1 VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L382] int kernel_st ; [L383] int tmp ; [L384] int tmp___0 ; [L388] kernel_st = 0 VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L153] COND TRUE m_i == 1 [L154] m_st = 0 VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L158] COND TRUE t1_i == 1 [L159] t1_st = 0 VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L242] COND FALSE !(M_E == 0) VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L247] COND FALSE !(T1_E == 0) VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L252] COND FALSE !(E_1 == 0) VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L285] int tmp ; [L286] int tmp___0 ; [L104] int __retres1 ; VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L107] COND FALSE !(m_pc == 1) VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L117] __retres1 = 0 VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L119] return (__retres1); VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L290] tmp = is_master_triggered() [L292] COND FALSE !(\read(tmp)) VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L123] int __retres1 ; VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L126] COND FALSE !(t1_pc == 1) VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L136] __retres1 = 0 VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L138] return (__retres1); VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L298] tmp___0 = is_transmit1_triggered() [L300] COND FALSE !(\read(tmp___0)) VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L265] COND FALSE !(M_E == 1) VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L270] COND FALSE !(T1_E == 1) VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L275] COND FALSE !(E_1 == 1) VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L396] COND TRUE 1 VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L399] kernel_st = 1 [L189] int tmp ; VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L193] COND TRUE 1 VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L168] int __retres1 ; VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L171] COND TRUE m_st == 0 [L172] __retres1 = 1 VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L184] return (__retres1); VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L196] tmp = exists_runnable_thread() [L198] COND TRUE \read(tmp) VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L203] COND TRUE m_st == 0 [L204] int tmp_ndt_1; [L205] tmp_ndt_1 = __VERIFIER_nondet_int() [L206] COND FALSE !(\read(tmp_ndt_1)) VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L217] COND TRUE t1_st == 0 [L218] int tmp_ndt_2; [L219] tmp_ndt_2 = __VERIFIER_nondet_int() [L220] COND TRUE \read(tmp_ndt_2) [L222] t1_st = 1 VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=1] [L74] COND TRUE t1_pc == 0 VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=1] [L85] COND TRUE 1 VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=1] [L87] t1_pc = 1 [L88] t1_st = 2 VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L193] COND TRUE 1 VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L168] int __retres1 ; VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L171] COND TRUE m_st == 0 [L172] __retres1 = 1 VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L184] return (__retres1); VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L196] tmp = exists_runnable_thread() [L198] COND TRUE \read(tmp) VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L203] COND TRUE m_st == 0 [L204] int tmp_ndt_1; [L205] tmp_ndt_1 = __VERIFIER_nondet_int() [L206] COND TRUE \read(tmp_ndt_1) [L208] m_st = 1 VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L33] COND TRUE m_pc == 0 VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L44] COND TRUE 1 VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L47] E_1 = 1 [L285] int tmp ; [L286] int tmp___0 ; [L104] int __retres1 ; VAL [E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L107] COND FALSE !(m_pc == 1) VAL [E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L117] __retres1 = 0 VAL [E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L119] return (__retres1); VAL [E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L290] tmp = is_master_triggered() [L292] COND FALSE !(\read(tmp)) VAL [E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L123] int __retres1 ; VAL [E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L126] COND TRUE t1_pc == 1 VAL [E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L127] COND TRUE E_1 == 1 [L128] __retres1 = 1 VAL [E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L138] return (__retres1); VAL [E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L298] tmp___0 = is_transmit1_triggered() [L300] COND TRUE \read(tmp___0) [L301] t1_st = 0 VAL [E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=0] [L49] E_1 = 2 VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=0] [L52] COND TRUE 1 VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=0] [L54] m_pc = 1 [L55] m_st = 2 VAL [E_1=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=0] [L217] COND TRUE t1_st == 0 [L218] int tmp_ndt_2; [L219] tmp_ndt_2 = __VERIFIER_nondet_int() [L220] COND TRUE \read(tmp_ndt_2) [L222] t1_st = 1 VAL [E_1=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1] [L74] COND FALSE !(t1_pc == 0) VAL [E_1=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1] [L77] COND TRUE t1_pc == 1 VAL [E_1=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1] [L13] reach_error() VAL [E_1=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 122 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.2s, OverallIterations: 10, TraceHistogramMax: 2, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1528 SDtfs, 1813 SDslu, 1481 SDs, 0 SdLazy, 175 SolverSat, 75 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=921occurred 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: 0.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 421 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 416 NumberOfCodeBlocks, 416 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 339 ConstructedInterpolants, 0 QuantifiedInterpolants, 21541 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 11/11 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...