./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product45.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_b3444e01-d840-420d-875d-648d6aa2e5f2/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b3444e01-d840-420d-875d-648d6aa2e5f2/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b3444e01-d840-420d-875d-648d6aa2e5f2/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b3444e01-d840-420d-875d-648d6aa2e5f2/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product45.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b3444e01-d840-420d-875d-648d6aa2e5f2/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b3444e01-d840-420d-875d-648d6aa2e5f2/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 9380fcd5e8279275d54611c820c997d6cd3c87ac ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 02:56:59,999 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 02:57:00,005 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 02:57:00,062 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 02:57:00,063 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 02:57:00,064 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 02:57:00,066 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 02:57:00,069 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 02:57:00,071 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 02:57:00,073 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 02:57:00,074 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 02:57:00,075 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 02:57:00,076 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 02:57:00,078 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 02:57:00,079 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 02:57:00,081 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 02:57:00,082 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 02:57:00,083 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 02:57:00,086 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 02:57:00,090 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 02:57:00,092 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 02:57:00,098 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 02:57:00,100 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 02:57:00,101 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 02:57:00,105 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 02:57:00,105 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 02:57:00,106 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 02:57:00,107 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 02:57:00,108 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 02:57:00,109 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 02:57:00,109 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 02:57:00,111 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 02:57:00,112 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 02:57:00,113 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 02:57:00,114 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 02:57:00,115 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 02:57:00,116 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 02:57:00,116 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 02:57:00,116 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 02:57:00,118 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 02:57:00,119 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 02:57:00,119 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b3444e01-d840-420d-875d-648d6aa2e5f2/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 02:57:00,155 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 02:57:00,155 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 02:57:00,157 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 02:57:00,157 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 02:57:00,158 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 02:57:00,158 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 02:57:00,158 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 02:57:00,158 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 02:57:00,158 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 02:57:00,159 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 02:57:00,160 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 02:57:00,160 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 02:57:00,160 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 02:57:00,160 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 02:57:00,161 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 02:57:00,161 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 02:57:00,161 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 02:57:00,161 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 02:57:00,161 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 02:57:00,162 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 02:57:00,162 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 02:57:00,162 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 02:57:00,162 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 02:57:00,163 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 02:57:00,163 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 02:57:00,163 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 02:57:00,163 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 02:57:00,163 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 02:57:00,164 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 02:57:00,164 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_b3444e01-d840-420d-875d-648d6aa2e5f2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b3444e01-d840-420d-875d-648d6aa2e5f2/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9380fcd5e8279275d54611c820c997d6cd3c87ac [2020-11-28 02:57:00,420 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 02:57:00,442 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 02:57:00,445 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 02:57:00,446 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 02:57:00,449 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 02:57:00,450 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b3444e01-d840-420d-875d-648d6aa2e5f2/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product45.cil.c [2020-11-28 02:57:00,547 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b3444e01-d840-420d-875d-648d6aa2e5f2/bin/uautomizer/data/e6363e719/168da387628a4144a73f0035e2c5a382/FLAG5dba9824f [2020-11-28 02:57:01,063 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 02:57:01,063 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b3444e01-d840-420d-875d-648d6aa2e5f2/sv-benchmarks/c/product-lines/minepump_spec4_product45.cil.c [2020-11-28 02:57:01,082 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b3444e01-d840-420d-875d-648d6aa2e5f2/bin/uautomizer/data/e6363e719/168da387628a4144a73f0035e2c5a382/FLAG5dba9824f [2020-11-28 02:57:01,380 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b3444e01-d840-420d-875d-648d6aa2e5f2/bin/uautomizer/data/e6363e719/168da387628a4144a73f0035e2c5a382 [2020-11-28 02:57:01,382 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 02:57:01,385 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 02:57:01,386 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 02:57:01,386 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 02:57:01,390 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 02:57:01,391 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:57:01" (1/1) ... [2020-11-28 02:57:01,393 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4147c21a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:01, skipping insertion in model container [2020-11-28 02:57:01,393 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:57:01" (1/1) ... [2020-11-28 02:57:01,401 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 02:57:01,444 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 02:57:01,813 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:57:01,834 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 02:57:01,918 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:57:01,958 INFO L208 MainTranslator]: Completed translation [2020-11-28 02:57:01,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:01 WrapperNode [2020-11-28 02:57:01,960 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 02:57:01,962 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 02:57:01,962 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 02:57:01,962 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 02:57:01,971 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:01" (1/1) ... [2020-11-28 02:57:02,007 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:01" (1/1) ... [2020-11-28 02:57:02,071 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 02:57:02,072 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 02:57:02,072 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 02:57:02,072 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 02:57:02,085 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:01" (1/1) ... [2020-11-28 02:57:02,086 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:01" (1/1) ... [2020-11-28 02:57:02,093 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:01" (1/1) ... [2020-11-28 02:57:02,093 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:01" (1/1) ... [2020-11-28 02:57:02,130 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:01" (1/1) ... [2020-11-28 02:57:02,137 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:01" (1/1) ... [2020-11-28 02:57:02,140 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:01" (1/1) ... [2020-11-28 02:57:02,157 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 02:57:02,158 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 02:57:02,158 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 02:57:02,158 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 02:57:02,160 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b3444e01-d840-420d-875d-648d6aa2e5f2/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 02:57:02,223 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 02:57:02,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 02:57:02,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 02:57:02,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 02:57:03,384 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 02:57:03,384 INFO L298 CfgBuilder]: Removed 198 assume(true) statements. [2020-11-28 02:57:03,386 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:57:03 BoogieIcfgContainer [2020-11-28 02:57:03,387 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 02:57:03,388 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 02:57:03,389 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 02:57:03,392 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 02:57:03,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:57:01" (1/3) ... [2020-11-28 02:57:03,393 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13aa9e03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:57:03, skipping insertion in model container [2020-11-28 02:57:03,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:01" (2/3) ... [2020-11-28 02:57:03,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13aa9e03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:57:03, skipping insertion in model container [2020-11-28 02:57:03,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:57:03" (3/3) ... [2020-11-28 02:57:03,396 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product45.cil.c [2020-11-28 02:57:03,407 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 02:57:03,412 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-28 02:57:03,425 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-28 02:57:03,463 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 02:57:03,463 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 02:57:03,463 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 02:57:03,463 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 02:57:03,463 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 02:57:03,463 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 02:57:03,464 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 02:57:03,464 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 02:57:03,481 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states. [2020-11-28 02:57:03,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-28 02:57:03,487 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:57:03,488 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:57:03,488 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:57:03,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:03,494 INFO L82 PathProgramCache]: Analyzing trace with hash -175303324, now seen corresponding path program 1 times [2020-11-28 02:57:03,504 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:03,504 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032864611] [2020-11-28 02:57:03,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:03,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:03,785 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 02:57:03,786 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032864611] [2020-11-28 02:57:03,787 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:03,787 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 02:57:03,788 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002353310] [2020-11-28 02:57:03,792 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 02:57:03,792 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:57:03,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 02:57:03,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 02:57:03,808 INFO L87 Difference]: Start difference. First operand 132 states. Second operand 2 states. [2020-11-28 02:57:03,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:03,841 INFO L93 Difference]: Finished difference Result 255 states and 380 transitions. [2020-11-28 02:57:03,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 02:57:03,843 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-11-28 02:57:03,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:57:03,866 INFO L225 Difference]: With dead ends: 255 [2020-11-28 02:57:03,867 INFO L226 Difference]: Without dead ends: 125 [2020-11-28 02:57:03,880 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 02:57:03,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-11-28 02:57:03,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2020-11-28 02:57:03,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-11-28 02:57:03,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 180 transitions. [2020-11-28 02:57:03,948 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 180 transitions. Word has length 16 [2020-11-28 02:57:03,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:57:03,950 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 180 transitions. [2020-11-28 02:57:03,950 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 02:57:03,951 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 180 transitions. [2020-11-28 02:57:03,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-28 02:57:03,953 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:57:03,953 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 02:57:03,954 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 02:57:03,954 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:57:03,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:03,957 INFO L82 PathProgramCache]: Analyzing trace with hash -1222060221, now seen corresponding path program 1 times [2020-11-28 02:57:03,957 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:03,958 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36023423] [2020-11-28 02:57:03,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:04,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:04,119 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 02:57:04,119 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36023423] [2020-11-28 02:57:04,120 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:04,120 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 02:57:04,120 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213967630] [2020-11-28 02:57:04,121 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 02:57:04,121 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:57:04,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 02:57:04,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:57:04,122 INFO L87 Difference]: Start difference. First operand 125 states and 180 transitions. Second operand 3 states. [2020-11-28 02:57:04,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:04,149 INFO L93 Difference]: Finished difference Result 125 states and 180 transitions. [2020-11-28 02:57:04,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 02:57:04,150 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-11-28 02:57:04,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:57:04,152 INFO L225 Difference]: With dead ends: 125 [2020-11-28 02:57:04,153 INFO L226 Difference]: Without dead ends: 51 [2020-11-28 02:57:04,155 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 02:57:04,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-11-28 02:57:04,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2020-11-28 02:57:04,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-11-28 02:57:04,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 73 transitions. [2020-11-28 02:57:04,167 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 73 transitions. Word has length 17 [2020-11-28 02:57:04,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:57:04,167 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 73 transitions. [2020-11-28 02:57:04,167 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 02:57:04,168 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 73 transitions. [2020-11-28 02:57:04,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-28 02:57:04,170 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:57:04,171 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 02:57:04,172 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 02:57:04,172 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:57:04,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:04,175 INFO L82 PathProgramCache]: Analyzing trace with hash -2019078694, now seen corresponding path program 1 times [2020-11-28 02:57:04,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:04,176 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377462347] [2020-11-28 02:57:04,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:04,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:04,311 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 02:57:04,311 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377462347] [2020-11-28 02:57:04,312 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:04,312 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 02:57:04,312 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132338938] [2020-11-28 02:57:04,312 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 02:57:04,313 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:57:04,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 02:57:04,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:57:04,313 INFO L87 Difference]: Start difference. First operand 51 states and 73 transitions. Second operand 3 states. [2020-11-28 02:57:04,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:04,327 INFO L93 Difference]: Finished difference Result 96 states and 140 transitions. [2020-11-28 02:57:04,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 02:57:04,331 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-11-28 02:57:04,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:57:04,332 INFO L225 Difference]: With dead ends: 96 [2020-11-28 02:57:04,332 INFO L226 Difference]: Without dead ends: 51 [2020-11-28 02:57:04,332 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 02:57:04,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-11-28 02:57:04,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2020-11-28 02:57:04,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-11-28 02:57:04,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 72 transitions. [2020-11-28 02:57:04,338 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 72 transitions. Word has length 22 [2020-11-28 02:57:04,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:57:04,338 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 72 transitions. [2020-11-28 02:57:04,338 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 02:57:04,338 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 72 transitions. [2020-11-28 02:57:04,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-28 02:57:04,349 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:57:04,349 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 02:57:04,350 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 02:57:04,350 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:57:04,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:04,351 INFO L82 PathProgramCache]: Analyzing trace with hash -1511639432, now seen corresponding path program 1 times [2020-11-28 02:57:04,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:04,352 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812796022] [2020-11-28 02:57:04,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:04,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:04,453 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 02:57:04,453 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812796022] [2020-11-28 02:57:04,454 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:04,454 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 02:57:04,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099534070] [2020-11-28 02:57:04,454 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 02:57:04,455 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:57:04,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 02:57:04,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:57:04,458 INFO L87 Difference]: Start difference. First operand 51 states and 72 transitions. Second operand 3 states. [2020-11-28 02:57:04,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:04,523 INFO L93 Difference]: Finished difference Result 117 states and 168 transitions. [2020-11-28 02:57:04,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 02:57:04,524 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-11-28 02:57:04,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:57:04,525 INFO L225 Difference]: With dead ends: 117 [2020-11-28 02:57:04,525 INFO L226 Difference]: Without dead ends: 72 [2020-11-28 02:57:04,526 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 02:57:04,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-11-28 02:57:04,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 70. [2020-11-28 02:57:04,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-11-28 02:57:04,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 98 transitions. [2020-11-28 02:57:04,537 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 98 transitions. Word has length 24 [2020-11-28 02:57:04,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:57:04,538 INFO L481 AbstractCegarLoop]: Abstraction has 70 states and 98 transitions. [2020-11-28 02:57:04,538 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 02:57:04,538 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 98 transitions. [2020-11-28 02:57:04,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-28 02:57:04,539 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:57:04,540 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 02:57:04,540 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 02:57:04,540 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:57:04,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:04,541 INFO L82 PathProgramCache]: Analyzing trace with hash 406595852, now seen corresponding path program 1 times [2020-11-28 02:57:04,542 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:04,542 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578470285] [2020-11-28 02:57:04,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:04,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:04,645 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 02:57:04,645 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578470285] [2020-11-28 02:57:04,645 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:04,645 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 02:57:04,646 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030982046] [2020-11-28 02:57:04,646 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 02:57:04,646 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:57:04,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 02:57:04,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 02:57:04,647 INFO L87 Difference]: Start difference. First operand 70 states and 98 transitions. Second operand 5 states. [2020-11-28 02:57:04,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:04,772 INFO L93 Difference]: Finished difference Result 247 states and 354 transitions. [2020-11-28 02:57:04,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 02:57:04,773 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-11-28 02:57:04,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:57:04,775 INFO L225 Difference]: With dead ends: 247 [2020-11-28 02:57:04,775 INFO L226 Difference]: Without dead ends: 183 [2020-11-28 02:57:04,776 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-28 02:57:04,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2020-11-28 02:57:04,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 113. [2020-11-28 02:57:04,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-11-28 02:57:04,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 155 transitions. [2020-11-28 02:57:04,803 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 155 transitions. Word has length 30 [2020-11-28 02:57:04,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:57:04,803 INFO L481 AbstractCegarLoop]: Abstraction has 113 states and 155 transitions. [2020-11-28 02:57:04,803 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 02:57:04,803 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 155 transitions. [2020-11-28 02:57:04,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-28 02:57:04,804 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:57:04,805 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 02:57:04,805 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 02:57:04,805 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:57:04,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:04,806 INFO L82 PathProgramCache]: Analyzing trace with hash -1601220342, now seen corresponding path program 1 times [2020-11-28 02:57:04,806 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:04,806 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56733476] [2020-11-28 02:57:04,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:04,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:04,856 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 02:57:04,856 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56733476] [2020-11-28 02:57:04,857 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:04,857 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 02:57:04,857 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817656677] [2020-11-28 02:57:04,857 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 02:57:04,858 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:57:04,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 02:57:04,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 02:57:04,864 INFO L87 Difference]: Start difference. First operand 113 states and 155 transitions. Second operand 4 states. [2020-11-28 02:57:04,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:04,989 INFO L93 Difference]: Finished difference Result 234 states and 328 transitions. [2020-11-28 02:57:04,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 02:57:04,989 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2020-11-28 02:57:04,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:57:04,991 INFO L225 Difference]: With dead ends: 234 [2020-11-28 02:57:04,991 INFO L226 Difference]: Without dead ends: 170 [2020-11-28 02:57:04,992 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 02:57:04,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2020-11-28 02:57:05,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 167. [2020-11-28 02:57:05,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-11-28 02:57:05,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 230 transitions. [2020-11-28 02:57:05,019 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 230 transitions. Word has length 31 [2020-11-28 02:57:05,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:57:05,022 INFO L481 AbstractCegarLoop]: Abstraction has 167 states and 230 transitions. [2020-11-28 02:57:05,022 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 02:57:05,022 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 230 transitions. [2020-11-28 02:57:05,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-28 02:57:05,026 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:57:05,026 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 02:57:05,026 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-28 02:57:05,027 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:57:05,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:05,027 INFO L82 PathProgramCache]: Analyzing trace with hash -1343054904, now seen corresponding path program 1 times [2020-11-28 02:57:05,027 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:05,028 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060880391] [2020-11-28 02:57:05,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:05,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:05,084 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 02:57:05,084 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060880391] [2020-11-28 02:57:05,085 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:05,085 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 02:57:05,085 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828355353] [2020-11-28 02:57:05,085 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 02:57:05,085 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:57:05,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 02:57:05,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 02:57:05,086 INFO L87 Difference]: Start difference. First operand 167 states and 230 transitions. Second operand 4 states. [2020-11-28 02:57:05,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:05,141 INFO L93 Difference]: Finished difference Result 465 states and 652 transitions. [2020-11-28 02:57:05,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 02:57:05,141 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2020-11-28 02:57:05,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:57:05,144 INFO L225 Difference]: With dead ends: 465 [2020-11-28 02:57:05,144 INFO L226 Difference]: Without dead ends: 346 [2020-11-28 02:57:05,145 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-28 02:57:05,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-11-28 02:57:05,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 167. [2020-11-28 02:57:05,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-11-28 02:57:05,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 228 transitions. [2020-11-28 02:57:05,160 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 228 transitions. Word has length 31 [2020-11-28 02:57:05,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:57:05,161 INFO L481 AbstractCegarLoop]: Abstraction has 167 states and 228 transitions. [2020-11-28 02:57:05,161 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 02:57:05,161 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 228 transitions. [2020-11-28 02:57:05,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-28 02:57:05,162 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:57:05,162 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:57:05,162 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-28 02:57:05,162 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:57:05,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:05,163 INFO L82 PathProgramCache]: Analyzing trace with hash -1736081914, now seen corresponding path program 1 times [2020-11-28 02:57:05,163 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:05,163 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825138084] [2020-11-28 02:57:05,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:05,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:05,245 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 02:57:05,245 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825138084] [2020-11-28 02:57:05,245 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:05,245 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-28 02:57:05,246 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052467784] [2020-11-28 02:57:05,246 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 02:57:05,246 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:57:05,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 02:57:05,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-28 02:57:05,247 INFO L87 Difference]: Start difference. First operand 167 states and 228 transitions. Second operand 6 states. [2020-11-28 02:57:05,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:05,395 INFO L93 Difference]: Finished difference Result 582 states and 811 transitions. [2020-11-28 02:57:05,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 02:57:05,395 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2020-11-28 02:57:05,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:57:05,402 INFO L225 Difference]: With dead ends: 582 [2020-11-28 02:57:05,402 INFO L226 Difference]: Without dead ends: 421 [2020-11-28 02:57:05,403 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-11-28 02:57:05,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2020-11-28 02:57:05,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 176. [2020-11-28 02:57:05,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2020-11-28 02:57:05,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 235 transitions. [2020-11-28 02:57:05,436 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 235 transitions. Word has length 31 [2020-11-28 02:57:05,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:57:05,437 INFO L481 AbstractCegarLoop]: Abstraction has 176 states and 235 transitions. [2020-11-28 02:57:05,437 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 02:57:05,437 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 235 transitions. [2020-11-28 02:57:05,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-11-28 02:57:05,438 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:57:05,438 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:57:05,438 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-28 02:57:05,438 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:57:05,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:05,439 INFO L82 PathProgramCache]: Analyzing trace with hash -468355170, now seen corresponding path program 1 times [2020-11-28 02:57:05,439 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:05,439 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812847266] [2020-11-28 02:57:05,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:05,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:05,516 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 02:57:05,516 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812847266] [2020-11-28 02:57:05,516 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:05,516 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 02:57:05,517 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090739132] [2020-11-28 02:57:05,517 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 02:57:05,517 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:57:05,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 02:57:05,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-28 02:57:05,518 INFO L87 Difference]: Start difference. First operand 176 states and 235 transitions. Second operand 6 states. [2020-11-28 02:57:05,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:05,722 INFO L93 Difference]: Finished difference Result 834 states and 1114 transitions. [2020-11-28 02:57:05,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-28 02:57:05,723 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2020-11-28 02:57:05,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:57:05,727 INFO L225 Difference]: With dead ends: 834 [2020-11-28 02:57:05,727 INFO L226 Difference]: Without dead ends: 664 [2020-11-28 02:57:05,728 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-11-28 02:57:05,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2020-11-28 02:57:05,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 334. [2020-11-28 02:57:05,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 334 states. [2020-11-28 02:57:05,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 439 transitions. [2020-11-28 02:57:05,765 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 439 transitions. Word has length 34 [2020-11-28 02:57:05,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:57:05,766 INFO L481 AbstractCegarLoop]: Abstraction has 334 states and 439 transitions. [2020-11-28 02:57:05,766 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 02:57:05,767 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 439 transitions. [2020-11-28 02:57:05,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-11-28 02:57:05,770 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:57:05,771 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:57:05,772 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-28 02:57:05,773 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:57:05,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:05,773 INFO L82 PathProgramCache]: Analyzing trace with hash 1306652192, now seen corresponding path program 1 times [2020-11-28 02:57:05,774 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:05,774 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273367385] [2020-11-28 02:57:05,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:05,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:05,866 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 02:57:05,866 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273367385] [2020-11-28 02:57:05,867 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:05,867 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 02:57:05,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547634499] [2020-11-28 02:57:05,867 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 02:57:05,867 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:57:05,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 02:57:05,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 02:57:05,868 INFO L87 Difference]: Start difference. First operand 334 states and 439 transitions. Second operand 5 states. [2020-11-28 02:57:06,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:06,053 INFO L93 Difference]: Finished difference Result 740 states and 975 transitions. [2020-11-28 02:57:06,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 02:57:06,058 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 34 [2020-11-28 02:57:06,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:57:06,061 INFO L225 Difference]: With dead ends: 740 [2020-11-28 02:57:06,061 INFO L226 Difference]: Without dead ends: 502 [2020-11-28 02:57:06,061 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-28 02:57:06,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2020-11-28 02:57:06,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 328. [2020-11-28 02:57:06,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 328 states. [2020-11-28 02:57:06,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 427 transitions. [2020-11-28 02:57:06,116 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 427 transitions. Word has length 34 [2020-11-28 02:57:06,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:57:06,116 INFO L481 AbstractCegarLoop]: Abstraction has 328 states and 427 transitions. [2020-11-28 02:57:06,117 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 02:57:06,117 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 427 transitions. [2020-11-28 02:57:06,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-28 02:57:06,118 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:57:06,118 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:57:06,118 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-28 02:57:06,119 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:57:06,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:06,119 INFO L82 PathProgramCache]: Analyzing trace with hash -334162626, now seen corresponding path program 1 times [2020-11-28 02:57:06,119 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:06,119 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568526089] [2020-11-28 02:57:06,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:06,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:06,189 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-28 02:57:06,189 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568526089] [2020-11-28 02:57:06,190 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:06,190 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 02:57:06,190 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058925430] [2020-11-28 02:57:06,190 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 02:57:06,190 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:57:06,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 02:57:06,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 02:57:06,191 INFO L87 Difference]: Start difference. First operand 328 states and 427 transitions. Second operand 5 states. [2020-11-28 02:57:06,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:06,291 INFO L93 Difference]: Finished difference Result 745 states and 973 transitions. [2020-11-28 02:57:06,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 02:57:06,291 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 51 [2020-11-28 02:57:06,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:57:06,294 INFO L225 Difference]: With dead ends: 745 [2020-11-28 02:57:06,295 INFO L226 Difference]: Without dead ends: 423 [2020-11-28 02:57:06,296 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 02:57:06,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2020-11-28 02:57:06,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 328. [2020-11-28 02:57:06,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 328 states. [2020-11-28 02:57:06,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 421 transitions. [2020-11-28 02:57:06,329 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 421 transitions. Word has length 51 [2020-11-28 02:57:06,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:57:06,330 INFO L481 AbstractCegarLoop]: Abstraction has 328 states and 421 transitions. [2020-11-28 02:57:06,330 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 02:57:06,330 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 421 transitions. [2020-11-28 02:57:06,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-28 02:57:06,331 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:57:06,331 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:57:06,331 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-28 02:57:06,332 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:57:06,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:06,337 INFO L82 PathProgramCache]: Analyzing trace with hash 367437248, now seen corresponding path program 1 times [2020-11-28 02:57:06,337 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:06,338 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913935746] [2020-11-28 02:57:06,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:06,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:06,403 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-28 02:57:06,404 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913935746] [2020-11-28 02:57:06,404 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:06,404 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 02:57:06,404 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357390186] [2020-11-28 02:57:06,405 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 02:57:06,405 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:57:06,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 02:57:06,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 02:57:06,405 INFO L87 Difference]: Start difference. First operand 328 states and 421 transitions. Second operand 4 states. [2020-11-28 02:57:06,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:06,489 INFO L93 Difference]: Finished difference Result 668 states and 867 transitions. [2020-11-28 02:57:06,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 02:57:06,490 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2020-11-28 02:57:06,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:57:06,493 INFO L225 Difference]: With dead ends: 668 [2020-11-28 02:57:06,493 INFO L226 Difference]: Without dead ends: 346 [2020-11-28 02:57:06,494 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-28 02:57:06,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-11-28 02:57:06,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 262. [2020-11-28 02:57:06,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-11-28 02:57:06,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 335 transitions. [2020-11-28 02:57:06,524 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 335 transitions. Word has length 51 [2020-11-28 02:57:06,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:57:06,524 INFO L481 AbstractCegarLoop]: Abstraction has 262 states and 335 transitions. [2020-11-28 02:57:06,524 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 02:57:06,524 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 335 transitions. [2020-11-28 02:57:06,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-11-28 02:57:06,525 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:57:06,526 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:57:06,526 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-28 02:57:06,526 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:57:06,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:06,527 INFO L82 PathProgramCache]: Analyzing trace with hash -482312060, now seen corresponding path program 1 times [2020-11-28 02:57:06,527 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:06,527 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752277388] [2020-11-28 02:57:06,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:06,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:06,574 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-11-28 02:57:06,574 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752277388] [2020-11-28 02:57:06,574 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:06,575 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 02:57:06,575 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963230398] [2020-11-28 02:57:06,575 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 02:57:06,575 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:57:06,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 02:57:06,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 02:57:06,576 INFO L87 Difference]: Start difference. First operand 262 states and 335 transitions. Second operand 5 states. [2020-11-28 02:57:06,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:06,759 INFO L93 Difference]: Finished difference Result 678 states and 868 transitions. [2020-11-28 02:57:06,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-28 02:57:06,759 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 52 [2020-11-28 02:57:06,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:57:06,763 INFO L225 Difference]: With dead ends: 678 [2020-11-28 02:57:06,763 INFO L226 Difference]: Without dead ends: 676 [2020-11-28 02:57:06,764 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 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 02:57:06,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 676 states. [2020-11-28 02:57:06,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 262. [2020-11-28 02:57:06,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-11-28 02:57:06,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 333 transitions. [2020-11-28 02:57:06,796 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 333 transitions. Word has length 52 [2020-11-28 02:57:06,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:57:06,797 INFO L481 AbstractCegarLoop]: Abstraction has 262 states and 333 transitions. [2020-11-28 02:57:06,797 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 02:57:06,799 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 333 transitions. [2020-11-28 02:57:06,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-11-28 02:57:06,799 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:57:06,800 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:57:06,800 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-28 02:57:06,801 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:57:06,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:06,802 INFO L82 PathProgramCache]: Analyzing trace with hash 1533505646, now seen corresponding path program 1 times [2020-11-28 02:57:06,802 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:06,806 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797253580] [2020-11-28 02:57:06,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:06,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:06,892 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:57:06,892 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797253580] [2020-11-28 02:57:06,893 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [569782907] [2020-11-28 02:57:06,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b3444e01-d840-420d-875d-648d6aa2e5f2/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 02:57:07,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:07,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-28 02:57:07,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:57:07,117 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:57:07,117 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-28 02:57:07,117 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2020-11-28 02:57:07,118 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790690971] [2020-11-28 02:57:07,118 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 02:57:07,118 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:57:07,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 02:57:07,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-28 02:57:07,119 INFO L87 Difference]: Start difference. First operand 262 states and 333 transitions. Second operand 6 states. [2020-11-28 02:57:07,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:07,489 INFO L93 Difference]: Finished difference Result 805 states and 1042 transitions. [2020-11-28 02:57:07,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-28 02:57:07,489 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 53 [2020-11-28 02:57:07,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:57:07,492 INFO L225 Difference]: With dead ends: 805 [2020-11-28 02:57:07,493 INFO L226 Difference]: Without dead ends: 597 [2020-11-28 02:57:07,493 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2020-11-28 02:57:07,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2020-11-28 02:57:07,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 366. [2020-11-28 02:57:07,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 366 states. [2020-11-28 02:57:07,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 471 transitions. [2020-11-28 02:57:07,545 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 471 transitions. Word has length 53 [2020-11-28 02:57:07,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:57:07,545 INFO L481 AbstractCegarLoop]: Abstraction has 366 states and 471 transitions. [2020-11-28 02:57:07,545 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 02:57:07,545 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 471 transitions. [2020-11-28 02:57:07,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-11-28 02:57:07,546 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:57:07,547 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:57:07,761 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2020-11-28 02:57:07,761 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:57:07,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:07,762 INFO L82 PathProgramCache]: Analyzing trace with hash 1340997472, now seen corresponding path program 2 times [2020-11-28 02:57:07,762 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:07,762 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650558481] [2020-11-28 02:57:07,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:07,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:07,844 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:07,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:07,922 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:08,003 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:08,005 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 02:57:08,006 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-11-28 02:57:08,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:57:08 BoogieIcfgContainer [2020-11-28 02:57:08,226 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 02:57:08,226 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 02:57:08,226 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 02:57:08,226 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 02:57:08,227 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:57:03" (3/4) ... [2020-11-28 02:57:08,229 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 02:57:08,390 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b3444e01-d840-420d-875d-648d6aa2e5f2/bin/uautomizer/witness.graphml [2020-11-28 02:57:08,390 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 02:57:08,392 INFO L168 Benchmark]: Toolchain (without parser) took 7006.26 ms. Allocated memory was 100.7 MB in the beginning and 146.8 MB in the end (delta: 46.1 MB). Free memory was 70.9 MB in the beginning and 80.7 MB in the end (delta: -9.8 MB). Peak memory consumption was 36.9 MB. Max. memory is 16.1 GB. [2020-11-28 02:57:08,393 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 83.9 MB. Free memory was 41.6 MB in the beginning and 41.5 MB in the end (delta: 75.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:57:08,393 INFO L168 Benchmark]: CACSL2BoogieTranslator took 574.76 ms. Allocated memory is still 100.7 MB. Free memory was 70.4 MB in the beginning and 67.4 MB in the end (delta: 3.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 02:57:08,393 INFO L168 Benchmark]: Boogie Procedure Inliner took 109.74 ms. Allocated memory is still 100.7 MB. Free memory was 67.4 MB in the beginning and 63.3 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 02:57:08,394 INFO L168 Benchmark]: Boogie Preprocessor took 84.82 ms. Allocated memory is still 100.7 MB. Free memory was 63.3 MB in the beginning and 60.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 02:57:08,394 INFO L168 Benchmark]: RCFGBuilder took 1229.19 ms. Allocated memory is still 100.7 MB. Free memory was 60.7 MB in the beginning and 40.0 MB in the end (delta: 20.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. [2020-11-28 02:57:08,395 INFO L168 Benchmark]: TraceAbstraction took 4837.37 ms. Allocated memory was 100.7 MB in the beginning and 146.8 MB in the end (delta: 46.1 MB). Free memory was 39.7 MB in the beginning and 109.0 MB in the end (delta: -69.3 MB). Peak memory consumption was 58.1 MB. Max. memory is 16.1 GB. [2020-11-28 02:57:08,395 INFO L168 Benchmark]: Witness Printer took 164.12 ms. Allocated memory is still 146.8 MB. Free memory was 109.0 MB in the beginning and 80.7 MB in the end (delta: 28.3 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. [2020-11-28 02:57:08,397 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 83.9 MB. Free memory was 41.6 MB in the beginning and 41.5 MB in the end (delta: 75.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 574.76 ms. Allocated memory is still 100.7 MB. Free memory was 70.4 MB in the beginning and 67.4 MB in the end (delta: 3.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 109.74 ms. Allocated memory is still 100.7 MB. Free memory was 67.4 MB in the beginning and 63.3 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 84.82 ms. Allocated memory is still 100.7 MB. Free memory was 63.3 MB in the beginning and 60.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1229.19 ms. Allocated memory is still 100.7 MB. Free memory was 60.7 MB in the beginning and 40.0 MB in the end (delta: 20.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4837.37 ms. Allocated memory was 100.7 MB in the beginning and 146.8 MB in the end (delta: 46.1 MB). Free memory was 39.7 MB in the beginning and 109.0 MB in the end (delta: -69.3 MB). Peak memory consumption was 58.1 MB. Max. memory is 16.1 GB. * Witness Printer took 164.12 ms. Allocated memory is still 146.8 MB. Free memory was 109.0 MB in the beginning and 80.7 MB in the end (delta: 28.3 MB). Peak memory consumption was 29.4 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: [L119] int pumpRunning = 0; [L120] int systemActive = 1; [L493] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L717] int cleanupTimeShifts = 4; [L816] int waterLevel = 1; [L817] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L793] int retValue_acc ; [L794] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L936] int retValue_acc ; [L939] retValue_acc = 1 [L940] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L800] tmp = valid_product() [L802] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L47] int splverifierCounter ; [L48] int tmp ; [L49] int tmp___0 ; [L50] int tmp___1 ; [L51] int tmp___2 ; [L54] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L56] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L58] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L64] tmp = __VERIFIER_nondet_int() [L66] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L834] COND TRUE waterLevel < 2 [L835] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L74] tmp___0 = __VERIFIER_nondet_int() [L76] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L84] tmp___2 = __VERIFIER_nondet_int() [L86] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L127] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L134] COND TRUE \read(systemActive) [L182] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L185] COND FALSE !(\read(pumpRunning)) [L156] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L159] COND TRUE ! pumpRunning [L296] int retValue_acc ; [L297] int tmp ; [L298] int tmp___0 ; [L896] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L899] COND FALSE !(waterLevel < 2) [L903] retValue_acc = 0 [L904] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L302] tmp = isHighWaterSensorDry() [L304] COND FALSE !(\read(tmp)) [L307] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L309] retValue_acc = tmp___0 [L310] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L161] tmp = isHighWaterLevel() [L163] COND TRUE \read(tmp) [L215] int tmp ; [L240] int retValue_acc ; [L855] int retValue_acc ; [L858] retValue_acc = methaneLevelCritical [L859] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L244] retValue_acc = isMethaneLevelCritical() [L246] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L219] tmp = isMethaneAlarm() [L221] COND FALSE !(\read(tmp)) [L210] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L692] int tmp ; [L693] int tmp___0 ; [L887] int retValue_acc ; [L890] retValue_acc = waterLevel [L891] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L697] tmp = getWaterLevel() [L699] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L56] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L58] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L64] tmp = __VERIFIER_nondet_int() [L66] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L74] tmp___0 = __VERIFIER_nondet_int() [L76] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L84] tmp___2 = __VERIFIER_nondet_int() [L86] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L127] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L822] COND TRUE waterLevel > 0 [L823] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L134] COND TRUE \read(systemActive) [L182] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L185] COND TRUE \read(pumpRunning) [L240] int retValue_acc ; [L855] int retValue_acc ; [L858] retValue_acc = methaneLevelCritical [L859] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L244] retValue_acc = isMethaneLevelCritical() [L246] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L187] tmp = isMethaneAlarm() [L189] COND FALSE !(\read(tmp)) [L156] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L159] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L692] int tmp ; [L693] int tmp___0 ; [L887] int retValue_acc ; [L890] retValue_acc = waterLevel [L891] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L697] tmp = getWaterLevel() [L699] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L56] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L58] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L64] tmp = __VERIFIER_nondet_int() [L66] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L74] tmp___0 = __VERIFIER_nondet_int() [L76] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L84] tmp___2 = __VERIFIER_nondet_int() [L86] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L127] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L822] COND TRUE waterLevel > 0 [L823] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L134] COND TRUE \read(systemActive) [L182] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L185] COND TRUE \read(pumpRunning) [L240] int retValue_acc ; [L855] int retValue_acc ; [L858] retValue_acc = methaneLevelCritical [L859] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L244] retValue_acc = isMethaneLevelCritical() [L246] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L187] tmp = isMethaneAlarm() [L189] COND FALSE !(\read(tmp)) [L156] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L159] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L692] int tmp ; [L693] int tmp___0 ; [L887] int retValue_acc ; [L890] retValue_acc = waterLevel [L891] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L697] tmp = getWaterLevel() [L699] COND TRUE tmp == 0 [L251] int retValue_acc ; [L254] retValue_acc = pumpRunning [L255] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L701] tmp___0 = isPumpRunning() [L703] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L3] __assert_fail("0", "minepump_spec4_product45.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 132 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.5s, OverallIterations: 15, TraceHistogramMax: 3, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1590 SDtfs, 2103 SDslu, 2472 SDs, 0 SdLazy, 372 SolverSat, 79 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 152 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=366occurred in iteration=14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 14 MinimizatonAttempts, 1827 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 602 NumberOfCodeBlocks, 602 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 515 ConstructedInterpolants, 0 QuantifiedInterpolants, 35411 SizeOfPredicates, 4 NumberOfNonLiveVariables, 432 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 15 InterpolantComputations, 13 PerfectInterpolantSequences, 64/70 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...