./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product56.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_722c2485-2d7b-4018-b1f6-6f6c76c9a851/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_722c2485-2d7b-4018-b1f6-6f6c76c9a851/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_722c2485-2d7b-4018-b1f6-6f6c76c9a851/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_722c2485-2d7b-4018-b1f6-6f6c76c9a851/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product56.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_722c2485-2d7b-4018-b1f6-6f6c76c9a851/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_722c2485-2d7b-4018-b1f6-6f6c76c9a851/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 8d89cb30057b8721685c80693144eb2455c18c87 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 22:09:57,939 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 22:09:57,943 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 22:09:57,995 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 22:09:57,996 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 22:09:57,997 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 22:09:57,999 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 22:09:58,002 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 22:09:58,005 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 22:09:58,006 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 22:09:58,007 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 22:09:58,010 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 22:09:58,012 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 22:09:58,016 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 22:09:58,018 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 22:09:58,020 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 22:09:58,021 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 22:09:58,035 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 22:09:58,038 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 22:09:58,046 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 22:09:58,048 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 22:09:58,050 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 22:09:58,051 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 22:09:58,053 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 22:09:58,056 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 22:09:58,056 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 22:09:58,057 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 22:09:58,058 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 22:09:58,059 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 22:09:58,060 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 22:09:58,060 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 22:09:58,061 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 22:09:58,063 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 22:09:58,064 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 22:09:58,065 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 22:09:58,066 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 22:09:58,067 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 22:09:58,067 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 22:09:58,068 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 22:09:58,069 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 22:09:58,070 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 22:09:58,071 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_722c2485-2d7b-4018-b1f6-6f6c76c9a851/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 22:09:58,095 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 22:09:58,095 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 22:09:58,096 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 22:09:58,097 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 22:09:58,097 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 22:09:58,097 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 22:09:58,097 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 22:09:58,098 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 22:09:58,098 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 22:09:58,098 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 22:09:58,098 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 22:09:58,099 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 22:09:58,099 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 22:09:58,099 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 22:09:58,099 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 22:09:58,100 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 22:09:58,100 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 22:09:58,100 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 22:09:58,100 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 22:09:58,101 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 22:09:58,101 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 22:09:58,101 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 22:09:58,101 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 22:09:58,102 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 22:09:58,102 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 22:09:58,102 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 22:09:58,102 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 22:09:58,103 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 22:09:58,103 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 22:09:58,103 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_722c2485-2d7b-4018-b1f6-6f6c76c9a851/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_722c2485-2d7b-4018-b1f6-6f6c76c9a851/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d89cb30057b8721685c80693144eb2455c18c87 [2020-11-29 22:09:58,341 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 22:09:58,365 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 22:09:58,368 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 22:09:58,370 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 22:09:58,370 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 22:09:58,371 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_722c2485-2d7b-4018-b1f6-6f6c76c9a851/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec1_product56.cil.c [2020-11-29 22:09:58,453 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_722c2485-2d7b-4018-b1f6-6f6c76c9a851/bin/uautomizer/data/6c857b57c/baf01f9dc9f743348c39d36d86d87fc8/FLAG4ffb18449 [2020-11-29 22:09:59,099 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 22:09:59,100 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_722c2485-2d7b-4018-b1f6-6f6c76c9a851/sv-benchmarks/c/product-lines/minepump_spec1_product56.cil.c [2020-11-29 22:09:59,114 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_722c2485-2d7b-4018-b1f6-6f6c76c9a851/bin/uautomizer/data/6c857b57c/baf01f9dc9f743348c39d36d86d87fc8/FLAG4ffb18449 [2020-11-29 22:09:59,410 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_722c2485-2d7b-4018-b1f6-6f6c76c9a851/bin/uautomizer/data/6c857b57c/baf01f9dc9f743348c39d36d86d87fc8 [2020-11-29 22:09:59,413 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 22:09:59,415 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 22:09:59,416 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 22:09:59,416 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 22:09:59,435 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 22:09:59,437 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:09:59" (1/1) ... [2020-11-29 22:09:59,440 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@231ff119 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:09:59, skipping insertion in model container [2020-11-29 22:09:59,440 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:09:59" (1/1) ... [2020-11-29 22:09:59,448 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 22:09:59,521 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 22:09:59,989 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:10:00,009 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 22:10:00,090 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:10:00,127 INFO L208 MainTranslator]: Completed translation [2020-11-29 22:10:00,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:10:00 WrapperNode [2020-11-29 22:10:00,128 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 22:10:00,130 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 22:10:00,130 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 22:10:00,130 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 22:10:00,138 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:10:00" (1/1) ... [2020-11-29 22:10:00,155 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:10:00" (1/1) ... [2020-11-29 22:10:00,207 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 22:10:00,208 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 22:10:00,208 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 22:10:00,209 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 22:10:00,221 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:10:00" (1/1) ... [2020-11-29 22:10:00,228 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:10:00" (1/1) ... [2020-11-29 22:10:00,235 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:10:00" (1/1) ... [2020-11-29 22:10:00,235 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:10:00" (1/1) ... [2020-11-29 22:10:00,254 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:10:00" (1/1) ... [2020-11-29 22:10:00,264 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:10:00" (1/1) ... [2020-11-29 22:10:00,269 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:10:00" (1/1) ... [2020-11-29 22:10:00,275 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 22:10:00,276 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 22:10:00,276 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 22:10:00,276 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 22:10:00,277 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:10:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_722c2485-2d7b-4018-b1f6-6f6c76c9a851/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 [2020-11-29 22:10:00,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 22:10:00,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 22:10:00,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 22:10:00,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 22:10:01,887 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 22:10:01,888 INFO L298 CfgBuilder]: Removed 288 assume(true) statements. [2020-11-29 22:10:01,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:10:01 BoogieIcfgContainer [2020-11-29 22:10:01,891 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 22:10:01,895 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 22:10:01,896 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 22:10:01,899 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 22:10:01,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 10:09:59" (1/3) ... [2020-11-29 22:10:01,900 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@321189a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 10:10:01, skipping insertion in model container [2020-11-29 22:10:01,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:10:00" (2/3) ... [2020-11-29 22:10:01,901 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@321189a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 10:10:01, skipping insertion in model container [2020-11-29 22:10:01,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:10:01" (3/3) ... [2020-11-29 22:10:01,902 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product56.cil.c [2020-11-29 22:10:01,914 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 22:10:01,918 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-29 22:10:01,928 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-29 22:10:01,966 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 22:10:01,966 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 22:10:01,967 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 22:10:01,971 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 22:10:01,971 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 22:10:01,972 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 22:10:01,972 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 22:10:01,973 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 22:10:02,002 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states. [2020-11-29 22:10:02,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-29 22:10:02,011 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:10:02,012 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:10:02,012 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:10:02,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:10:02,019 INFO L82 PathProgramCache]: Analyzing trace with hash 326185497, now seen corresponding path program 1 times [2020-11-29 22:10:02,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:10:02,029 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534402497] [2020-11-29 22:10:02,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:10:02,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:10:02,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:10:02,374 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534402497] [2020-11-29 22:10:02,375 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:10:02,375 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 22:10:02,376 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429054996] [2020-11-29 22:10:02,380 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 22:10:02,381 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:10:02,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 22:10:02,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 22:10:02,397 INFO L87 Difference]: Start difference. First operand 194 states. Second operand 2 states. [2020-11-29 22:10:02,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:10:02,465 INFO L93 Difference]: Finished difference Result 379 states and 578 transitions. [2020-11-29 22:10:02,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 22:10:02,467 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-11-29 22:10:02,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:10:02,487 INFO L225 Difference]: With dead ends: 379 [2020-11-29 22:10:02,487 INFO L226 Difference]: Without dead ends: 187 [2020-11-29 22:10:02,501 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 [2020-11-29 22:10:02,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2020-11-29 22:10:02,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 187. [2020-11-29 22:10:02,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2020-11-29 22:10:02,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 279 transitions. [2020-11-29 22:10:02,577 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 279 transitions. Word has length 16 [2020-11-29 22:10:02,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:10:02,578 INFO L481 AbstractCegarLoop]: Abstraction has 187 states and 279 transitions. [2020-11-29 22:10:02,578 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 22:10:02,579 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 279 transitions. [2020-11-29 22:10:02,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-29 22:10:02,580 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:10:02,581 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:10:02,581 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 22:10:02,582 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:10:02,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:10:02,585 INFO L82 PathProgramCache]: Analyzing trace with hash -1699548539, now seen corresponding path program 1 times [2020-11-29 22:10:02,585 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:10:02,585 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916708788] [2020-11-29 22:10:02,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:10:02,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:10:02,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:10:02,725 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916708788] [2020-11-29 22:10:02,725 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:10:02,725 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:10:02,725 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525508187] [2020-11-29 22:10:02,726 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:10:02,727 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:10:02,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:10:02,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:10:02,728 INFO L87 Difference]: Start difference. First operand 187 states and 279 transitions. Second operand 3 states. [2020-11-29 22:10:02,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:10:02,741 INFO L93 Difference]: Finished difference Result 187 states and 279 transitions. [2020-11-29 22:10:02,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:10:02,742 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-11-29 22:10:02,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:10:02,743 INFO L225 Difference]: With dead ends: 187 [2020-11-29 22:10:02,743 INFO L226 Difference]: Without dead ends: 73 [2020-11-29 22:10:02,745 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 [2020-11-29 22:10:02,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-11-29 22:10:02,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2020-11-29 22:10:02,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-11-29 22:10:02,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 108 transitions. [2020-11-29 22:10:02,757 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 108 transitions. Word has length 17 [2020-11-29 22:10:02,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:10:02,758 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 108 transitions. [2020-11-29 22:10:02,758 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:10:02,758 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 108 transitions. [2020-11-29 22:10:02,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-29 22:10:02,759 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:10:02,760 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] [2020-11-29 22:10:02,760 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 22:10:02,760 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:10:02,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:10:02,761 INFO L82 PathProgramCache]: Analyzing trace with hash 1577730230, now seen corresponding path program 1 times [2020-11-29 22:10:02,761 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:10:02,762 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416228108] [2020-11-29 22:10:02,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:10:02,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:10:02,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:10:02,911 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416228108] [2020-11-29 22:10:02,911 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:10:02,911 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 22:10:02,911 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218985660] [2020-11-29 22:10:02,912 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 22:10:02,912 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:10:02,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 22:10:02,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 22:10:02,913 INFO L87 Difference]: Start difference. First operand 73 states and 108 transitions. Second operand 5 states. [2020-11-29 22:10:03,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:10:03,008 INFO L93 Difference]: Finished difference Result 163 states and 244 transitions. [2020-11-29 22:10:03,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 22:10:03,013 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-11-29 22:10:03,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:10:03,015 INFO L225 Difference]: With dead ends: 163 [2020-11-29 22:10:03,015 INFO L226 Difference]: Without dead ends: 96 [2020-11-29 22:10:03,016 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-29 22:10:03,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2020-11-29 22:10:03,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 92. [2020-11-29 22:10:03,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-11-29 22:10:03,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 137 transitions. [2020-11-29 22:10:03,036 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 137 transitions. Word has length 22 [2020-11-29 22:10:03,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:10:03,037 INFO L481 AbstractCegarLoop]: Abstraction has 92 states and 137 transitions. [2020-11-29 22:10:03,037 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 22:10:03,037 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 137 transitions. [2020-11-29 22:10:03,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-29 22:10:03,040 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:10:03,040 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] [2020-11-29 22:10:03,040 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 22:10:03,041 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:10:03,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:10:03,041 INFO L82 PathProgramCache]: Analyzing trace with hash 792163456, now seen corresponding path program 1 times [2020-11-29 22:10:03,041 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:10:03,041 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128248394] [2020-11-29 22:10:03,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:10:03,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:10:03,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:10:03,141 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128248394] [2020-11-29 22:10:03,141 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:10:03,142 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 22:10:03,142 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523478682] [2020-11-29 22:10:03,142 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:10:03,142 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:10:03,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:10:03,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:10:03,143 INFO L87 Difference]: Start difference. First operand 92 states and 137 transitions. Second operand 3 states. [2020-11-29 22:10:03,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:10:03,215 INFO L93 Difference]: Finished difference Result 187 states and 280 transitions. [2020-11-29 22:10:03,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:10:03,215 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-11-29 22:10:03,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:10:03,216 INFO L225 Difference]: With dead ends: 187 [2020-11-29 22:10:03,217 INFO L226 Difference]: Without dead ends: 101 [2020-11-29 22:10:03,217 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 [2020-11-29 22:10:03,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-11-29 22:10:03,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 99. [2020-11-29 22:10:03,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-11-29 22:10:03,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 141 transitions. [2020-11-29 22:10:03,228 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 141 transitions. Word has length 25 [2020-11-29 22:10:03,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:10:03,228 INFO L481 AbstractCegarLoop]: Abstraction has 99 states and 141 transitions. [2020-11-29 22:10:03,229 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:10:03,229 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 141 transitions. [2020-11-29 22:10:03,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-29 22:10:03,233 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:10:03,234 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] [2020-11-29 22:10:03,234 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-29 22:10:03,234 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:10:03,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:10:03,234 INFO L82 PathProgramCache]: Analyzing trace with hash 1022954699, now seen corresponding path program 1 times [2020-11-29 22:10:03,235 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:10:03,235 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384599942] [2020-11-29 22:10:03,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:10:03,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:10:03,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:10:03,328 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384599942] [2020-11-29 22:10:03,328 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:10:03,328 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 22:10:03,329 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245380725] [2020-11-29 22:10:03,329 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 22:10:03,329 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:10:03,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 22:10:03,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 22:10:03,330 INFO L87 Difference]: Start difference. First operand 99 states and 141 transitions. Second operand 5 states. [2020-11-29 22:10:03,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:10:03,453 INFO L93 Difference]: Finished difference Result 485 states and 703 transitions. [2020-11-29 22:10:03,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-29 22:10:03,453 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-11-29 22:10:03,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:10:03,456 INFO L225 Difference]: With dead ends: 485 [2020-11-29 22:10:03,456 INFO L226 Difference]: Without dead ends: 392 [2020-11-29 22:10:03,457 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 [2020-11-29 22:10:03,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2020-11-29 22:10:03,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 184. [2020-11-29 22:10:03,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2020-11-29 22:10:03,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 260 transitions. [2020-11-29 22:10:03,478 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 260 transitions. Word has length 25 [2020-11-29 22:10:03,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:10:03,478 INFO L481 AbstractCegarLoop]: Abstraction has 184 states and 260 transitions. [2020-11-29 22:10:03,478 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 22:10:03,478 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 260 transitions. [2020-11-29 22:10:03,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-29 22:10:03,479 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:10:03,479 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] [2020-11-29 22:10:03,480 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-29 22:10:03,480 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:10:03,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:10:03,480 INFO L82 PathProgramCache]: Analyzing trace with hash 819147605, now seen corresponding path program 1 times [2020-11-29 22:10:03,480 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:10:03,481 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858029178] [2020-11-29 22:10:03,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:10:03,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:10:03,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:10:03,550 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858029178] [2020-11-29 22:10:03,550 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:10:03,550 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 22:10:03,551 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72887453] [2020-11-29 22:10:03,551 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 22:10:03,551 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:10:03,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 22:10:03,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 22:10:03,552 INFO L87 Difference]: Start difference. First operand 184 states and 260 transitions. Second operand 5 states. [2020-11-29 22:10:03,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:10:03,787 INFO L93 Difference]: Finished difference Result 522 states and 741 transitions. [2020-11-29 22:10:03,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-29 22:10:03,788 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2020-11-29 22:10:03,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:10:03,791 INFO L225 Difference]: With dead ends: 522 [2020-11-29 22:10:03,791 INFO L226 Difference]: Without dead ends: 520 [2020-11-29 22:10:03,792 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 [2020-11-29 22:10:03,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2020-11-29 22:10:03,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 184. [2020-11-29 22:10:03,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2020-11-29 22:10:03,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 258 transitions. [2020-11-29 22:10:03,824 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 258 transitions. Word has length 26 [2020-11-29 22:10:03,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:10:03,825 INFO L481 AbstractCegarLoop]: Abstraction has 184 states and 258 transitions. [2020-11-29 22:10:03,825 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 22:10:03,825 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 258 transitions. [2020-11-29 22:10:03,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-29 22:10:03,829 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:10:03,829 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] [2020-11-29 22:10:03,829 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-29 22:10:03,829 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:10:03,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:10:03,830 INFO L82 PathProgramCache]: Analyzing trace with hash -1010263109, now seen corresponding path program 1 times [2020-11-29 22:10:03,830 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:10:03,832 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230080024] [2020-11-29 22:10:03,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:10:03,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:10:03,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:10:03,899 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230080024] [2020-11-29 22:10:03,899 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:10:03,899 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 22:10:03,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559908913] [2020-11-29 22:10:03,900 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 22:10:03,900 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:10:03,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 22:10:03,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 22:10:03,901 INFO L87 Difference]: Start difference. First operand 184 states and 258 transitions. Second operand 5 states. [2020-11-29 22:10:04,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:10:04,021 INFO L93 Difference]: Finished difference Result 534 states and 740 transitions. [2020-11-29 22:10:04,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 22:10:04,021 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2020-11-29 22:10:04,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:10:04,023 INFO L225 Difference]: With dead ends: 534 [2020-11-29 22:10:04,024 INFO L226 Difference]: Without dead ends: 356 [2020-11-29 22:10:04,024 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 [2020-11-29 22:10:04,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2020-11-29 22:10:04,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 202. [2020-11-29 22:10:04,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-11-29 22:10:04,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 276 transitions. [2020-11-29 22:10:04,045 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 276 transitions. Word has length 32 [2020-11-29 22:10:04,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:10:04,046 INFO L481 AbstractCegarLoop]: Abstraction has 202 states and 276 transitions. [2020-11-29 22:10:04,047 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 22:10:04,047 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 276 transitions. [2020-11-29 22:10:04,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-29 22:10:04,053 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:10:04,053 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] [2020-11-29 22:10:04,053 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-29 22:10:04,053 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:10:04,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:10:04,054 INFO L82 PathProgramCache]: Analyzing trace with hash -1403290119, now seen corresponding path program 1 times [2020-11-29 22:10:04,054 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:10:04,055 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186448684] [2020-11-29 22:10:04,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:10:04,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:10:04,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:10:04,160 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186448684] [2020-11-29 22:10:04,160 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:10:04,160 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-29 22:10:04,160 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786604394] [2020-11-29 22:10:04,161 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 22:10:04,161 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:10:04,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 22:10:04,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-29 22:10:04,162 INFO L87 Difference]: Start difference. First operand 202 states and 276 transitions. Second operand 6 states. [2020-11-29 22:10:04,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:10:04,322 INFO L93 Difference]: Finished difference Result 584 states and 790 transitions. [2020-11-29 22:10:04,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-29 22:10:04,322 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2020-11-29 22:10:04,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:10:04,325 INFO L225 Difference]: With dead ends: 584 [2020-11-29 22:10:04,325 INFO L226 Difference]: Without dead ends: 388 [2020-11-29 22:10:04,326 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 [2020-11-29 22:10:04,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2020-11-29 22:10:04,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 214. [2020-11-29 22:10:04,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-11-29 22:10:04,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 288 transitions. [2020-11-29 22:10:04,363 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 288 transitions. Word has length 32 [2020-11-29 22:10:04,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:10:04,364 INFO L481 AbstractCegarLoop]: Abstraction has 214 states and 288 transitions. [2020-11-29 22:10:04,364 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 22:10:04,364 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 288 transitions. [2020-11-29 22:10:04,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-29 22:10:04,365 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:10:04,365 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] [2020-11-29 22:10:04,365 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-29 22:10:04,366 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:10:04,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:10:04,367 INFO L82 PathProgramCache]: Analyzing trace with hash -1145124681, now seen corresponding path program 1 times [2020-11-29 22:10:04,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:10:04,367 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581431481] [2020-11-29 22:10:04,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:10:04,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:10:04,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:10:04,418 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581431481] [2020-11-29 22:10:04,418 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:10:04,418 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 22:10:04,418 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515256335] [2020-11-29 22:10:04,419 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:10:04,419 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:10:04,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:10:04,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:10:04,420 INFO L87 Difference]: Start difference. First operand 214 states and 288 transitions. Second operand 3 states. [2020-11-29 22:10:04,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:10:04,485 INFO L93 Difference]: Finished difference Result 512 states and 688 transitions. [2020-11-29 22:10:04,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:10:04,485 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2020-11-29 22:10:04,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:10:04,487 INFO L225 Difference]: With dead ends: 512 [2020-11-29 22:10:04,488 INFO L226 Difference]: Without dead ends: 304 [2020-11-29 22:10:04,488 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 [2020-11-29 22:10:04,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2020-11-29 22:10:04,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 304. [2020-11-29 22:10:04,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 304 states. [2020-11-29 22:10:04,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 400 transitions. [2020-11-29 22:10:04,520 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 400 transitions. Word has length 32 [2020-11-29 22:10:04,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:10:04,521 INFO L481 AbstractCegarLoop]: Abstraction has 304 states and 400 transitions. [2020-11-29 22:10:04,521 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:10:04,521 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 400 transitions. [2020-11-29 22:10:04,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-11-29 22:10:04,522 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:10:04,523 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] [2020-11-29 22:10:04,523 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-29 22:10:04,523 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:10:04,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:10:04,524 INFO L82 PathProgramCache]: Analyzing trace with hash 2078796085, now seen corresponding path program 1 times [2020-11-29 22:10:04,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:10:04,524 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217808651] [2020-11-29 22:10:04,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:10:04,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:10:04,620 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:10:04,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:10:04,690 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:10:04,752 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:10:04,752 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 22:10:04,752 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-29 22:10:04,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 10:10:04 BoogieIcfgContainer [2020-11-29 22:10:04,886 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 22:10:04,886 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 22:10:04,887 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 22:10:04,887 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 22:10:04,887 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:10:01" (3/4) ... [2020-11-29 22:10:04,889 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-29 22:10:05,013 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_722c2485-2d7b-4018-b1f6-6f6c76c9a851/bin/uautomizer/witness.graphml [2020-11-29 22:10:05,013 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 22:10:05,015 INFO L168 Benchmark]: Toolchain (without parser) took 5599.11 ms. Allocated memory was 111.1 MB in the beginning and 207.6 MB in the end (delta: 96.5 MB). Free memory was 83.1 MB in the beginning and 70.2 MB in the end (delta: 12.9 MB). Peak memory consumption was 107.7 MB. Max. memory is 16.1 GB. [2020-11-29 22:10:05,015 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 111.1 MB. Free memory is still 70.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:10:05,016 INFO L168 Benchmark]: CACSL2BoogieTranslator took 712.56 ms. Allocated memory was 111.1 MB in the beginning and 153.1 MB in the end (delta: 41.9 MB). Free memory was 82.7 MB in the beginning and 118.3 MB in the end (delta: -35.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 22:10:05,016 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.75 ms. Allocated memory is still 153.1 MB. Free memory was 118.3 MB in the beginning and 113.4 MB in the end (delta: 4.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-29 22:10:05,017 INFO L168 Benchmark]: Boogie Preprocessor took 67.24 ms. Allocated memory is still 153.1 MB. Free memory was 113.4 MB in the beginning and 109.8 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 22:10:05,017 INFO L168 Benchmark]: RCFGBuilder took 1615.58 ms. Allocated memory is still 153.1 MB. Free memory was 109.2 MB in the beginning and 98.0 MB in the end (delta: 11.2 MB). Peak memory consumption was 58.7 MB. Max. memory is 16.1 GB. [2020-11-29 22:10:05,019 INFO L168 Benchmark]: TraceAbstraction took 2991.35 ms. Allocated memory was 153.1 MB in the beginning and 207.6 MB in the end (delta: 54.5 MB). Free memory was 97.1 MB in the beginning and 83.9 MB in the end (delta: 13.2 MB). Peak memory consumption was 70.6 MB. Max. memory is 16.1 GB. [2020-11-29 22:10:05,020 INFO L168 Benchmark]: Witness Printer took 126.39 ms. Allocated memory is still 207.6 MB. Free memory was 83.9 MB in the beginning and 70.2 MB in the end (delta: 13.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 22:10:05,022 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 111.1 MB. Free memory is still 70.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 712.56 ms. Allocated memory was 111.1 MB in the beginning and 153.1 MB in the end (delta: 41.9 MB). Free memory was 82.7 MB in the beginning and 118.3 MB in the end (delta: -35.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 77.75 ms. Allocated memory is still 153.1 MB. Free memory was 118.3 MB in the beginning and 113.4 MB in the end (delta: 4.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 67.24 ms. Allocated memory is still 153.1 MB. Free memory was 113.4 MB in the beginning and 109.8 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1615.58 ms. Allocated memory is still 153.1 MB. Free memory was 109.2 MB in the beginning and 98.0 MB in the end (delta: 11.2 MB). Peak memory consumption was 58.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2991.35 ms. Allocated memory was 153.1 MB in the beginning and 207.6 MB in the end (delta: 54.5 MB). Free memory was 97.1 MB in the beginning and 83.9 MB in the end (delta: 13.2 MB). Peak memory consumption was 70.6 MB. Max. memory is 16.1 GB. * Witness Printer took 126.39 ms. Allocated memory is still 207.6 MB. Free memory was 83.9 MB in the beginning and 70.2 MB in the end (delta: 13.6 MB). Peak memory consumption was 12.6 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: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L492] int pumpRunning = 0; [L493] int systemActive = 1; [L813] int cleanupTimeShifts = 4; [L910] int waterLevel = 1; [L911] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L886] int retValue_acc ; [L887] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L768] int retValue_acc ; [L771] retValue_acc = 1 [L772] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L893] tmp = valid_product() [L895] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L415] int splverifierCounter ; [L416] int tmp ; [L417] int tmp___0 ; [L418] int tmp___1 ; [L419] int tmp___2 ; [L422] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L424] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L426] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L432] tmp = __VERIFIER_nondet_int() [L434] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L928] COND TRUE waterLevel < 2 [L929] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L442] tmp___0 = __VERIFIER_nondet_int() [L444] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L940] COND FALSE !(\read(methaneLevelCritical)) [L943] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L452] tmp___2 = __VERIFIER_nondet_int() [L454] COND TRUE \read(tmp___2) [L734] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L500] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L507] COND TRUE \read(systemActive) [L581] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L584] COND FALSE !(\read(pumpRunning)) [L555] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L558] COND FALSE !(\read(pumpRunning)) [L529] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L532] COND TRUE ! pumpRunning [L678] int retValue_acc ; [L679] int tmp ; [L680] int tmp___0 ; [L990] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L993] COND FALSE !(waterLevel < 2) [L997] retValue_acc = 0 [L998] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L684] tmp = isHighWaterSensorDry() [L686] COND FALSE !(\read(tmp)) [L689] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L691] retValue_acc = tmp___0 [L692] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L534] tmp = isHighWaterLevel() [L536] COND TRUE \read(tmp) [L609] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L779] int tmp ; [L780] int tmp___0 ; [L949] int retValue_acc ; [L952] retValue_acc = methaneLevelCritical [L953] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L784] tmp = isMethaneLevelCritical() [L786] COND TRUE \read(tmp) [L633] int retValue_acc ; [L636] retValue_acc = pumpRunning [L637] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L788] tmp___0 = isPumpRunning() [L790] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L3] __assert_fail("0", "minepump_spec1_product56.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, 194 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.7s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1182 SDtfs, 1711 SDslu, 1365 SDs, 0 SdLazy, 207 SolverSat, 56 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 59 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=304occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 878 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 260 NumberOfCodeBlocks, 260 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 218 ConstructedInterpolants, 0 QuantifiedInterpolants, 10664 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...