./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product49.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_94f41d60-2f2e-45b1-9087-9d9d3600aaad/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_94f41d60-2f2e-45b1-9087-9d9d3600aaad/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_94f41d60-2f2e-45b1-9087-9d9d3600aaad/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_94f41d60-2f2e-45b1-9087-9d9d3600aaad/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product49.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_94f41d60-2f2e-45b1-9087-9d9d3600aaad/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_94f41d60-2f2e-45b1-9087-9d9d3600aaad/bin/uautomizer --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 51759f83c5c8a18147c4d3cfcc22a931ec36cde5 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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-a4ecdab [2020-11-28 03:19:27,781 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:19:27,784 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:19:27,880 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:19:27,881 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:19:27,886 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:19:27,888 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:19:27,890 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:19:27,892 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:19:27,894 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:19:27,895 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:19:27,896 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:19:27,897 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:19:27,898 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:19:27,900 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:19:27,901 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:19:27,902 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:19:27,903 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:19:27,905 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:19:27,907 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:19:27,909 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:19:27,911 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:19:27,912 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:19:27,913 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:19:27,916 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:19:27,917 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:19:27,917 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:19:27,918 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:19:27,919 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:19:27,920 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:19:27,920 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:19:27,921 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:19:27,922 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:19:27,923 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:19:27,924 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:19:27,925 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:19:27,926 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:19:27,926 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:19:27,926 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:19:27,927 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:19:27,928 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:19:27,929 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_94f41d60-2f2e-45b1-9087-9d9d3600aaad/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:19:27,950 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:19:27,950 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:19:27,951 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:19:27,952 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:19:27,952 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:19:27,952 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:19:27,952 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:19:27,952 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:19:27,953 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:19:27,953 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:19:27,953 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:19:27,953 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:19:27,953 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:19:27,954 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:19:27,954 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:19:27,954 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:19:27,954 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:19:27,954 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:19:27,955 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:19:27,955 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:19:27,955 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:19:27,955 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:19:27,955 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:19:27,956 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:19:27,956 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:19:27,956 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:19:27,956 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:19:27,956 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:19:27,957 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:19:27,957 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-vcloud-master/worker/run_dir_94f41d60-2f2e-45b1-9087-9d9d3600aaad/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_94f41d60-2f2e-45b1-9087-9d9d3600aaad/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 51759f83c5c8a18147c4d3cfcc22a931ec36cde5 [2020-11-28 03:19:28,286 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:19:28,321 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:19:28,327 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:19:28,328 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:19:28,330 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:19:28,331 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_94f41d60-2f2e-45b1-9087-9d9d3600aaad/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec1_product49.cil.c [2020-11-28 03:19:28,436 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_94f41d60-2f2e-45b1-9087-9d9d3600aaad/bin/uautomizer/data/7605a57c8/152d98a1d6704f8c94ba6f747a59fb5a/FLAG047b8300b [2020-11-28 03:19:28,986 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:19:28,987 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_94f41d60-2f2e-45b1-9087-9d9d3600aaad/sv-benchmarks/c/product-lines/minepump_spec1_product49.cil.c [2020-11-28 03:19:29,000 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_94f41d60-2f2e-45b1-9087-9d9d3600aaad/bin/uautomizer/data/7605a57c8/152d98a1d6704f8c94ba6f747a59fb5a/FLAG047b8300b [2020-11-28 03:19:29,273 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_94f41d60-2f2e-45b1-9087-9d9d3600aaad/bin/uautomizer/data/7605a57c8/152d98a1d6704f8c94ba6f747a59fb5a [2020-11-28 03:19:29,275 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:19:29,276 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:19:29,278 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:19:29,278 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:19:29,281 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:19:29,282 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:19:29" (1/1) ... [2020-11-28 03:19:29,284 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2faad53b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:29, skipping insertion in model container [2020-11-28 03:19:29,284 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:19:29" (1/1) ... [2020-11-28 03:19:29,291 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:19:29,347 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:19:29,633 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:19:29,643 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:19:29,783 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:19:29,835 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:19:29,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:29 WrapperNode [2020-11-28 03:19:29,837 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:19:29,838 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:19:29,838 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:19:29,839 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:19:29,848 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:29" (1/1) ... [2020-11-28 03:19:29,868 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:29" (1/1) ... [2020-11-28 03:19:29,915 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:19:29,916 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:19:29,916 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:19:29,917 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:19:29,926 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:29" (1/1) ... [2020-11-28 03:19:29,926 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:29" (1/1) ... [2020-11-28 03:19:29,932 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:29" (1/1) ... [2020-11-28 03:19:29,933 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:29" (1/1) ... [2020-11-28 03:19:29,947 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:29" (1/1) ... [2020-11-28 03:19:29,955 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:29" (1/1) ... [2020-11-28 03:19:29,959 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:29" (1/1) ... [2020-11-28 03:19:29,969 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:19:29,970 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:19:29,970 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:19:29,970 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:19:29,971 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_94f41d60-2f2e-45b1-9087-9d9d3600aaad/bin/uautomizer/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 [2020-11-28 03:19:30,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:19:30,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:19:30,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:19:30,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:19:31,196 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:19:31,196 INFO L298 CfgBuilder]: Removed 162 assume(true) statements. [2020-11-28 03:19:31,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:19:31 BoogieIcfgContainer [2020-11-28 03:19:31,199 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:19:31,202 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:19:31,202 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:19:31,208 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:19:31,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:19:29" (1/3) ... [2020-11-28 03:19:31,210 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e6d68e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:19:31, skipping insertion in model container [2020-11-28 03:19:31,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:29" (2/3) ... [2020-11-28 03:19:31,211 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e6d68e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:19:31, skipping insertion in model container [2020-11-28 03:19:31,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:19:31" (3/3) ... [2020-11-28 03:19:31,213 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product49.cil.c [2020-11-28 03:19:31,230 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:19:31,238 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-28 03:19:31,248 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-28 03:19:31,273 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:19:31,273 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:19:31,273 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:19:31,274 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:19:31,274 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:19:31,274 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:19:31,274 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:19:31,274 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:19:31,291 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states. [2020-11-28 03:19:31,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-28 03:19:31,296 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:19:31,296 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:19:31,297 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:19:31,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:31,302 INFO L82 PathProgramCache]: Analyzing trace with hash -948451738, now seen corresponding path program 1 times [2020-11-28 03:19:31,308 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:31,309 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125012266] [2020-11-28 03:19:31,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:31,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:31,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:19:31,539 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125012266] [2020-11-28 03:19:31,540 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:19:31,540 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:19:31,541 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621502772] [2020-11-28 03:19:31,545 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 03:19:31,545 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:19:31,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 03:19:31,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:19:31,566 INFO L87 Difference]: Start difference. First operand 120 states. Second operand 2 states. [2020-11-28 03:19:31,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:19:31,620 INFO L93 Difference]: Finished difference Result 231 states and 350 transitions. [2020-11-28 03:19:31,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 03:19:31,621 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-11-28 03:19:31,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:19:31,631 INFO L225 Difference]: With dead ends: 231 [2020-11-28 03:19:31,632 INFO L226 Difference]: Without dead ends: 113 [2020-11-28 03:19:31,635 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 [2020-11-28 03:19:31,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-11-28 03:19:31,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2020-11-28 03:19:31,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-11-28 03:19:31,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 165 transitions. [2020-11-28 03:19:31,677 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 165 transitions. Word has length 16 [2020-11-28 03:19:31,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:19:31,677 INFO L481 AbstractCegarLoop]: Abstraction has 113 states and 165 transitions. [2020-11-28 03:19:31,677 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 03:19:31,677 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 165 transitions. [2020-11-28 03:19:31,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-28 03:19:31,679 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:19:31,679 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:19:31,679 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:19:31,679 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:19:31,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:31,680 INFO L82 PathProgramCache]: Analyzing trace with hash -1995208635, now seen corresponding path program 1 times [2020-11-28 03:19:31,680 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:31,681 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93186926] [2020-11-28 03:19:31,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:31,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:31,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:19:31,883 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93186926] [2020-11-28 03:19:31,883 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:19:31,884 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:19:31,884 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191624843] [2020-11-28 03:19:31,885 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:19:31,885 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:19:31,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:19:31,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:19:31,886 INFO L87 Difference]: Start difference. First operand 113 states and 165 transitions. Second operand 3 states. [2020-11-28 03:19:31,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:19:31,905 INFO L93 Difference]: Finished difference Result 113 states and 165 transitions. [2020-11-28 03:19:31,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:19:31,905 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-11-28 03:19:31,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:19:31,907 INFO L225 Difference]: With dead ends: 113 [2020-11-28 03:19:31,907 INFO L226 Difference]: Without dead ends: 47 [2020-11-28 03:19:31,910 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 [2020-11-28 03:19:31,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-11-28 03:19:31,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-11-28 03:19:31,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-11-28 03:19:31,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 68 transitions. [2020-11-28 03:19:31,917 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 68 transitions. Word has length 17 [2020-11-28 03:19:31,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:19:31,918 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 68 transitions. [2020-11-28 03:19:31,918 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:19:31,918 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 68 transitions. [2020-11-28 03:19:31,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-28 03:19:31,919 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:19:31,919 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] [2020-11-28 03:19:31,919 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:19:31,920 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:19:31,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:31,921 INFO L82 PathProgramCache]: Analyzing trace with hash 1404483435, now seen corresponding path program 1 times [2020-11-28 03:19:31,921 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:31,921 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041285150] [2020-11-28 03:19:31,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:31,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:32,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:19:32,093 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041285150] [2020-11-28 03:19:32,093 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:19:32,093 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:19:32,093 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265901222] [2020-11-28 03:19:32,094 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 03:19:32,094 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:19:32,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 03:19:32,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:19:32,096 INFO L87 Difference]: Start difference. First operand 47 states and 68 transitions. Second operand 6 states. [2020-11-28 03:19:32,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:19:32,387 INFO L93 Difference]: Finished difference Result 88 states and 130 transitions. [2020-11-28 03:19:32,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:19:32,388 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2020-11-28 03:19:32,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:19:32,389 INFO L225 Difference]: With dead ends: 88 [2020-11-28 03:19:32,389 INFO L226 Difference]: Without dead ends: 47 [2020-11-28 03:19:32,390 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:19:32,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-11-28 03:19:32,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-11-28 03:19:32,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-11-28 03:19:32,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 67 transitions. [2020-11-28 03:19:32,398 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 67 transitions. Word has length 22 [2020-11-28 03:19:32,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:19:32,398 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 67 transitions. [2020-11-28 03:19:32,398 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 03:19:32,399 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 67 transitions. [2020-11-28 03:19:32,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-28 03:19:32,400 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:19:32,400 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] [2020-11-28 03:19:32,400 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 03:19:32,401 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:19:32,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:32,402 INFO L82 PathProgramCache]: Analyzing trace with hash -764351347, now seen corresponding path program 1 times [2020-11-28 03:19:32,402 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:32,402 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075309125] [2020-11-28 03:19:32,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:32,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:32,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:19:32,521 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075309125] [2020-11-28 03:19:32,521 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:19:32,521 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:19:32,522 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430543978] [2020-11-28 03:19:32,522 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:19:32,522 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:19:32,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:19:32,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:19:32,524 INFO L87 Difference]: Start difference. First operand 47 states and 67 transitions. Second operand 3 states. [2020-11-28 03:19:32,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:19:32,587 INFO L93 Difference]: Finished difference Result 109 states and 158 transitions. [2020-11-28 03:19:32,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:19:32,587 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-11-28 03:19:32,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:19:32,589 INFO L225 Difference]: With dead ends: 109 [2020-11-28 03:19:32,589 INFO L226 Difference]: Without dead ends: 68 [2020-11-28 03:19:32,589 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 [2020-11-28 03:19:32,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-11-28 03:19:32,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 66. [2020-11-28 03:19:32,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-11-28 03:19:32,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 93 transitions. [2020-11-28 03:19:32,606 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 93 transitions. Word has length 24 [2020-11-28 03:19:32,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:19:32,607 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 93 transitions. [2020-11-28 03:19:32,607 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:19:32,607 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 93 transitions. [2020-11-28 03:19:32,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-28 03:19:32,608 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:19:32,608 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] [2020-11-28 03:19:32,608 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 03:19:32,609 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:19:32,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:32,610 INFO L82 PathProgramCache]: Analyzing trace with hash -805303330, now seen corresponding path program 1 times [2020-11-28 03:19:32,610 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:32,610 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617201962] [2020-11-28 03:19:32,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:32,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:32,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:19:32,732 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617201962] [2020-11-28 03:19:32,733 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:19:32,733 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:19:32,733 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27132120] [2020-11-28 03:19:32,734 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:19:32,734 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:19:32,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:19:32,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:19:32,735 INFO L87 Difference]: Start difference. First operand 66 states and 93 transitions. Second operand 5 states. [2020-11-28 03:19:33,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:19:33,011 INFO L93 Difference]: Finished difference Result 175 states and 245 transitions. [2020-11-28 03:19:33,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:19:33,011 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-11-28 03:19:33,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:19:33,013 INFO L225 Difference]: With dead ends: 175 [2020-11-28 03:19:33,013 INFO L226 Difference]: Without dead ends: 115 [2020-11-28 03:19:33,014 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 [2020-11-28 03:19:33,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-11-28 03:19:33,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 72. [2020-11-28 03:19:33,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-11-28 03:19:33,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 99 transitions. [2020-11-28 03:19:33,029 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 99 transitions. Word has length 30 [2020-11-28 03:19:33,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:19:33,030 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 99 transitions. [2020-11-28 03:19:33,030 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:19:33,030 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 99 transitions. [2020-11-28 03:19:33,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-28 03:19:33,037 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:19:33,037 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] [2020-11-28 03:19:33,039 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 03:19:33,040 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:19:33,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:33,042 INFO L82 PathProgramCache]: Analyzing trace with hash 1857207713, now seen corresponding path program 1 times [2020-11-28 03:19:33,042 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:33,042 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029676512] [2020-11-28 03:19:33,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:33,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:33,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:19:33,181 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029676512] [2020-11-28 03:19:33,181 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:19:33,181 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:19:33,182 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588972898] [2020-11-28 03:19:33,182 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:19:33,182 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:19:33,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:19:33,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:19:33,183 INFO L87 Difference]: Start difference. First operand 72 states and 99 transitions. Second operand 5 states. [2020-11-28 03:19:33,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:19:33,330 INFO L93 Difference]: Finished difference Result 382 states and 538 transitions. [2020-11-28 03:19:33,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-28 03:19:33,330 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-11-28 03:19:33,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:19:33,334 INFO L225 Difference]: With dead ends: 382 [2020-11-28 03:19:33,334 INFO L226 Difference]: Without dead ends: 316 [2020-11-28 03:19:33,340 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 [2020-11-28 03:19:33,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2020-11-28 03:19:33,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 132. [2020-11-28 03:19:33,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-11-28 03:19:33,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 181 transitions. [2020-11-28 03:19:33,385 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 181 transitions. Word has length 30 [2020-11-28 03:19:33,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:19:33,389 INFO L481 AbstractCegarLoop]: Abstraction has 132 states and 181 transitions. [2020-11-28 03:19:33,389 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:19:33,390 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 181 transitions. [2020-11-28 03:19:33,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-28 03:19:33,391 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:19:33,393 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] [2020-11-28 03:19:33,393 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-28 03:19:33,394 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:19:33,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:33,403 INFO L82 PathProgramCache]: Analyzing trace with hash -1765991081, now seen corresponding path program 1 times [2020-11-28 03:19:33,404 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:33,404 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954225055] [2020-11-28 03:19:33,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:33,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:33,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:19:33,511 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954225055] [2020-11-28 03:19:33,512 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:19:33,512 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:19:33,512 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234127406] [2020-11-28 03:19:33,512 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:19:33,512 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:19:33,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:19:33,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:19:33,513 INFO L87 Difference]: Start difference. First operand 132 states and 181 transitions. Second operand 5 states. [2020-11-28 03:19:33,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:19:33,655 INFO L93 Difference]: Finished difference Result 378 states and 520 transitions. [2020-11-28 03:19:33,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-28 03:19:33,655 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2020-11-28 03:19:33,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:19:33,658 INFO L225 Difference]: With dead ends: 378 [2020-11-28 03:19:33,658 INFO L226 Difference]: Without dead ends: 376 [2020-11-28 03:19:33,659 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 [2020-11-28 03:19:33,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2020-11-28 03:19:33,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 132. [2020-11-28 03:19:33,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-11-28 03:19:33,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 180 transitions. [2020-11-28 03:19:33,682 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 180 transitions. Word has length 31 [2020-11-28 03:19:33,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:19:33,683 INFO L481 AbstractCegarLoop]: Abstraction has 132 states and 180 transitions. [2020-11-28 03:19:33,683 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:19:33,683 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 180 transitions. [2020-11-28 03:19:33,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-28 03:19:33,690 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:19:33,690 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] [2020-11-28 03:19:33,690 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-28 03:19:33,690 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:19:33,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:33,691 INFO L82 PathProgramCache]: Analyzing trace with hash -526561838, now seen corresponding path program 1 times [2020-11-28 03:19:33,691 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:33,692 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034289997] [2020-11-28 03:19:33,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:33,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:33,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:19:33,778 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034289997] [2020-11-28 03:19:33,779 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:19:33,779 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-28 03:19:33,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134114360] [2020-11-28 03:19:33,779 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 03:19:33,780 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:19:33,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 03:19:33,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:19:33,781 INFO L87 Difference]: Start difference. First operand 132 states and 180 transitions. Second operand 6 states. [2020-11-28 03:19:33,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:19:33,896 INFO L93 Difference]: Finished difference Result 354 states and 478 transitions. [2020-11-28 03:19:33,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 03:19:33,897 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2020-11-28 03:19:33,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:19:33,899 INFO L225 Difference]: With dead ends: 354 [2020-11-28 03:19:33,899 INFO L226 Difference]: Without dead ends: 228 [2020-11-28 03:19:33,900 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 [2020-11-28 03:19:33,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2020-11-28 03:19:33,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 140. [2020-11-28 03:19:33,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-11-28 03:19:33,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 188 transitions. [2020-11-28 03:19:33,944 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 188 transitions. Word has length 31 [2020-11-28 03:19:33,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:19:33,944 INFO L481 AbstractCegarLoop]: Abstraction has 140 states and 188 transitions. [2020-11-28 03:19:33,945 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 03:19:33,945 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 188 transitions. [2020-11-28 03:19:33,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-28 03:19:33,947 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:19:33,948 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] [2020-11-28 03:19:33,948 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-28 03:19:33,949 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:19:33,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:33,950 INFO L82 PathProgramCache]: Analyzing trace with hash -268396400, now seen corresponding path program 1 times [2020-11-28 03:19:33,950 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:33,950 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106562194] [2020-11-28 03:19:33,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:33,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:34,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:19:34,021 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106562194] [2020-11-28 03:19:34,021 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:19:34,021 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:19:34,021 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829935844] [2020-11-28 03:19:34,022 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:19:34,022 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:19:34,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:19:34,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:19:34,023 INFO L87 Difference]: Start difference. First operand 140 states and 188 transitions. Second operand 3 states. [2020-11-28 03:19:34,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:19:34,065 INFO L93 Difference]: Finished difference Result 324 states and 434 transitions. [2020-11-28 03:19:34,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:19:34,066 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2020-11-28 03:19:34,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:19:34,068 INFO L225 Difference]: With dead ends: 324 [2020-11-28 03:19:34,068 INFO L226 Difference]: Without dead ends: 190 [2020-11-28 03:19:34,069 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 [2020-11-28 03:19:34,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2020-11-28 03:19:34,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 190. [2020-11-28 03:19:34,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2020-11-28 03:19:34,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 248 transitions. [2020-11-28 03:19:34,093 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 248 transitions. Word has length 31 [2020-11-28 03:19:34,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:19:34,094 INFO L481 AbstractCegarLoop]: Abstraction has 190 states and 248 transitions. [2020-11-28 03:19:34,094 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:19:34,094 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 248 transitions. [2020-11-28 03:19:34,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-28 03:19:34,097 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:19:34,098 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] [2020-11-28 03:19:34,098 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-28 03:19:34,098 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:19:34,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:34,099 INFO L82 PathProgramCache]: Analyzing trace with hash 1913811026, now seen corresponding path program 1 times [2020-11-28 03:19:34,099 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:34,099 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875710908] [2020-11-28 03:19:34,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:34,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:19:34,207 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:19:34,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:19:34,273 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:19:34,352 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:19:34,353 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:19:34,354 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-28 03:19:34,483 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:19:34 BoogieIcfgContainer [2020-11-28 03:19:34,483 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:19:34,484 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:19:34,484 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:19:34,484 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:19:34,485 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:19:31" (3/4) ... [2020-11-28 03:19:34,487 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 03:19:34,602 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_94f41d60-2f2e-45b1-9087-9d9d3600aaad/bin/uautomizer/witness.graphml [2020-11-28 03:19:34,603 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:19:34,605 INFO L168 Benchmark]: Toolchain (without parser) took 5327.18 ms. Allocated memory was 121.6 MB in the beginning and 157.3 MB in the end (delta: 35.7 MB). Free memory was 84.9 MB in the beginning and 62.4 MB in the end (delta: 22.5 MB). Peak memory consumption was 58.0 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:34,605 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 121.6 MB. Free memory was 93.5 MB in the beginning and 93.4 MB in the end (delta: 30.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:19:34,606 INFO L168 Benchmark]: CACSL2BoogieTranslator took 559.47 ms. Allocated memory is still 121.6 MB. Free memory was 84.6 MB in the beginning and 87.4 MB in the end (delta: -2.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:34,606 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.01 ms. Allocated memory is still 121.6 MB. Free memory was 87.0 MB in the beginning and 83.7 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:34,607 INFO L168 Benchmark]: Boogie Preprocessor took 52.93 ms. Allocated memory is still 121.6 MB. Free memory was 83.7 MB in the beginning and 80.5 MB in the end (delta: 3.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:34,607 INFO L168 Benchmark]: RCFGBuilder took 1229.95 ms. Allocated memory is still 121.6 MB. Free memory was 80.5 MB in the beginning and 68.3 MB in the end (delta: 12.2 MB). Peak memory consumption was 41.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:34,608 INFO L168 Benchmark]: TraceAbstraction took 3281.60 ms. Allocated memory was 121.6 MB in the beginning and 157.3 MB in the end (delta: 35.7 MB). Free memory was 68.3 MB in the beginning and 76.1 MB in the end (delta: -7.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:34,608 INFO L168 Benchmark]: Witness Printer took 118.69 ms. Allocated memory is still 157.3 MB. Free memory was 76.1 MB in the beginning and 62.4 MB in the end (delta: 13.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:34,611 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 121.6 MB. Free memory was 93.5 MB in the beginning and 93.4 MB in the end (delta: 30.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 559.47 ms. Allocated memory is still 121.6 MB. Free memory was 84.6 MB in the beginning and 87.4 MB in the end (delta: -2.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 77.01 ms. Allocated memory is still 121.6 MB. Free memory was 87.0 MB in the beginning and 83.7 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 52.93 ms. Allocated memory is still 121.6 MB. Free memory was 83.7 MB in the beginning and 80.5 MB in the end (delta: 3.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1229.95 ms. Allocated memory is still 121.6 MB. Free memory was 80.5 MB in the beginning and 68.3 MB in the end (delta: 12.2 MB). Peak memory consumption was 41.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3281.60 ms. Allocated memory was 121.6 MB in the beginning and 157.3 MB in the end (delta: 35.7 MB). Free memory was 68.3 MB in the beginning and 76.1 MB in the end (delta: -7.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 16.1 GB. * Witness Printer took 118.69 ms. Allocated memory is still 157.3 MB. Free memory was 76.1 MB in the beginning and 62.4 MB in the end (delta: 13.6 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: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L71] int cleanupTimeShifts = 4; [L344] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L547] int pumpRunning = 0; [L548] int systemActive = 1; [L845] int waterLevel = 1; [L846] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L152] int retValue_acc ; [L153] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L835] int retValue_acc ; [L838] retValue_acc = 1 [L839] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L159] tmp = valid_product() [L161] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L745] int splverifierCounter ; [L746] int tmp ; [L747] int tmp___0 ; [L748] int tmp___1 ; [L749] int tmp___2 ; [L752] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L754] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L756] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L762] tmp = __VERIFIER_nondet_int() [L764] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L863] COND TRUE waterLevel < 2 [L864] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L772] tmp___0 = __VERIFIER_nondet_int() [L774] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L875] COND FALSE !(\read(methaneLevelCritical)) [L878] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L782] tmp___2 = __VERIFIER_nondet_int() [L784] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L554] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L561] COND TRUE \read(systemActive) [L609] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L612] COND FALSE !(\read(pumpRunning)) [L583] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L586] COND TRUE ! pumpRunning [L706] int retValue_acc ; [L707] int tmp ; [L708] int tmp___0 ; [L925] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L928] COND FALSE !(waterLevel < 2) [L932] retValue_acc = 0 [L933] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L712] tmp = isHighWaterSensorDry() [L714] COND FALSE !(\read(tmp)) [L717] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L719] retValue_acc = tmp___0 [L720] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L588] tmp = isHighWaterLevel() [L590] COND TRUE \read(tmp) [L637] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L46] int tmp ; [L47] int tmp___0 ; [L884] int retValue_acc ; [L887] retValue_acc = methaneLevelCritical [L888] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L51] tmp = isMethaneLevelCritical() [L53] COND TRUE \read(tmp) [L661] int retValue_acc ; [L664] retValue_acc = pumpRunning [L665] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L55] tmp___0 = isPumpRunning() [L57] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L3] __assert_fail("0", "minepump_spec1_product49.cil.c", 3, "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, 120 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.0s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 826 SDtfs, 1234 SDslu, 1056 SDs, 0 SdLazy, 148 SolverSat, 30 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 55 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=190occurred 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, 561 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 264 NumberOfCodeBlocks, 264 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 223 ConstructedInterpolants, 0 QuantifiedInterpolants, 12402 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...