./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product44.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_05b1d8ab-20e6-41de-a741-489e75593361/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_05b1d8ab-20e6-41de-a741-489e75593361/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_05b1d8ab-20e6-41de-a741-489e75593361/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_05b1d8ab-20e6-41de-a741-489e75593361/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product44.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_05b1d8ab-20e6-41de-a741-489e75593361/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_05b1d8ab-20e6-41de-a741-489e75593361/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 41f42675c60ac44d105cf71847968c4edf76aefd ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 02:58:00,849 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 02:58:00,852 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 02:58:00,922 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 02:58:00,923 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 02:58:00,929 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 02:58:00,932 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 02:58:00,944 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 02:58:00,946 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 02:58:00,954 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 02:58:00,956 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 02:58:00,957 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 02:58:00,958 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 02:58:00,959 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 02:58:00,960 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 02:58:00,962 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 02:58:00,963 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 02:58:00,970 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 02:58:00,973 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 02:58:00,982 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 02:58:00,985 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 02:58:00,987 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 02:58:00,990 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 02:58:00,991 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 02:58:00,995 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 02:58:00,996 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 02:58:00,996 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 02:58:00,998 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 02:58:00,999 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 02:58:01,000 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 02:58:01,001 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 02:58:01,002 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 02:58:01,004 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 02:58:01,005 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 02:58:01,007 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 02:58:01,007 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 02:58:01,008 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 02:58:01,008 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 02:58:01,008 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 02:58:01,009 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 02:58:01,010 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 02:58:01,013 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_05b1d8ab-20e6-41de-a741-489e75593361/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 02:58:01,056 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 02:58:01,057 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 02:58:01,059 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 02:58:01,059 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 02:58:01,060 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 02:58:01,060 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 02:58:01,060 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 02:58:01,060 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 02:58:01,061 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 02:58:01,061 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 02:58:01,062 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 02:58:01,062 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 02:58:01,062 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 02:58:01,063 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 02:58:01,063 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 02:58:01,063 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 02:58:01,063 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 02:58:01,063 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 02:58:01,064 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 02:58:01,064 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 02:58:01,064 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 02:58:01,064 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 02:58:01,064 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 02:58:01,065 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 02:58:01,065 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 02:58:01,065 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 02:58:01,065 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 02:58:01,065 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 02:58:01,066 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 02:58:01,066 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_05b1d8ab-20e6-41de-a741-489e75593361/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_05b1d8ab-20e6-41de-a741-489e75593361/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 41f42675c60ac44d105cf71847968c4edf76aefd [2020-11-28 02:58:01,409 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 02:58:01,452 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 02:58:01,455 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 02:58:01,456 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 02:58:01,457 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 02:58:01,459 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_05b1d8ab-20e6-41de-a741-489e75593361/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec2_product44.cil.c [2020-11-28 02:58:01,529 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_05b1d8ab-20e6-41de-a741-489e75593361/bin/uautomizer/data/862ce1209/078c9a6d5d9a4c15b236f6c850c87607/FLAGc55a3e64d [2020-11-28 02:58:02,126 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 02:58:02,127 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_05b1d8ab-20e6-41de-a741-489e75593361/sv-benchmarks/c/product-lines/minepump_spec2_product44.cil.c [2020-11-28 02:58:02,143 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_05b1d8ab-20e6-41de-a741-489e75593361/bin/uautomizer/data/862ce1209/078c9a6d5d9a4c15b236f6c850c87607/FLAGc55a3e64d [2020-11-28 02:58:02,436 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_05b1d8ab-20e6-41de-a741-489e75593361/bin/uautomizer/data/862ce1209/078c9a6d5d9a4c15b236f6c850c87607 [2020-11-28 02:58:02,438 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 02:58:02,439 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 02:58:02,453 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 02:58:02,453 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 02:58:02,457 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 02:58:02,459 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:58:02" (1/1) ... [2020-11-28 02:58:02,466 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c79a66e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:58:02, skipping insertion in model container [2020-11-28 02:58:02,466 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:58:02" (1/1) ... [2020-11-28 02:58:02,473 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 02:58:02,531 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 02:58:02,883 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:58:02,893 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 02:58:03,009 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:58:03,058 INFO L208 MainTranslator]: Completed translation [2020-11-28 02:58:03,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:58:03 WrapperNode [2020-11-28 02:58:03,059 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 02:58:03,061 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 02:58:03,061 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 02:58:03,061 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 02:58:03,069 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:58:03" (1/1) ... [2020-11-28 02:58:03,103 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:58:03" (1/1) ... [2020-11-28 02:58:03,149 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 02:58:03,150 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 02:58:03,151 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 02:58:03,151 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 02:58:03,157 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:58:03" (1/1) ... [2020-11-28 02:58:03,157 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:58:03" (1/1) ... [2020-11-28 02:58:03,162 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:58:03" (1/1) ... [2020-11-28 02:58:03,162 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:58:03" (1/1) ... [2020-11-28 02:58:03,174 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:58:03" (1/1) ... [2020-11-28 02:58:03,180 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:58:03" (1/1) ... [2020-11-28 02:58:03,184 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:58:03" (1/1) ... [2020-11-28 02:58:03,198 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 02:58:03,199 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 02:58:03,199 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 02:58:03,200 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 02:58:03,200 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:58:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05b1d8ab-20e6-41de-a741-489e75593361/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 02:58:03,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 02:58:03,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 02:58:03,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 02:58:03,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 02:58:04,143 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 02:58:04,143 INFO L298 CfgBuilder]: Removed 128 assume(true) statements. [2020-11-28 02:58:04,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:58:04 BoogieIcfgContainer [2020-11-28 02:58:04,145 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 02:58:04,147 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 02:58:04,147 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 02:58:04,150 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 02:58:04,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:58:02" (1/3) ... [2020-11-28 02:58:04,151 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45761d67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:58:04, skipping insertion in model container [2020-11-28 02:58:04,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:58:03" (2/3) ... [2020-11-28 02:58:04,152 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45761d67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:58:04, skipping insertion in model container [2020-11-28 02:58:04,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:58:04" (3/3) ... [2020-11-28 02:58:04,153 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product44.cil.c [2020-11-28 02:58:04,176 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 02:58:04,180 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-28 02:58:04,190 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-28 02:58:04,210 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 02:58:04,211 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 02:58:04,211 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 02:58:04,211 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 02:58:04,211 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 02:58:04,211 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 02:58:04,211 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 02:58:04,211 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 02:58:04,226 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states. [2020-11-28 02:58:04,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-28 02:58:04,232 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:58:04,233 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:58:04,233 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:58:04,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:58:04,239 INFO L82 PathProgramCache]: Analyzing trace with hash 578880292, now seen corresponding path program 1 times [2020-11-28 02:58:04,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:58:04,248 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726107186] [2020-11-28 02:58:04,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:58:04,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:58:04,540 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 02:58:04,541 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726107186] [2020-11-28 02:58:04,542 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:58:04,542 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 02:58:04,543 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605531625] [2020-11-28 02:58:04,548 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 02:58:04,548 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:58:04,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 02:58:04,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 02:58:04,568 INFO L87 Difference]: Start difference. First operand 96 states. Second operand 2 states. [2020-11-28 02:58:04,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:58:04,618 INFO L93 Difference]: Finished difference Result 182 states and 273 transitions. [2020-11-28 02:58:04,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 02:58:04,620 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-11-28 02:58:04,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:58:04,633 INFO L225 Difference]: With dead ends: 182 [2020-11-28 02:58:04,633 INFO L226 Difference]: Without dead ends: 89 [2020-11-28 02:58:04,647 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 02:58:04,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-11-28 02:58:04,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2020-11-28 02:58:04,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-11-28 02:58:04,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 127 transitions. [2020-11-28 02:58:04,706 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 127 transitions. Word has length 18 [2020-11-28 02:58:04,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:58:04,706 INFO L481 AbstractCegarLoop]: Abstraction has 89 states and 127 transitions. [2020-11-28 02:58:04,706 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 02:58:04,707 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 127 transitions. [2020-11-28 02:58:04,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-28 02:58:04,709 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:58:04,709 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:58:04,710 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 02:58:04,710 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:58:04,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:58:04,713 INFO L82 PathProgramCache]: Analyzing trace with hash 360044323, now seen corresponding path program 1 times [2020-11-28 02:58:04,713 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:58:04,713 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60211524] [2020-11-28 02:58:04,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:58:04,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:58:04,885 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 02:58:04,885 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60211524] [2020-11-28 02:58:04,886 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:58:04,886 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 02:58:04,886 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036651571] [2020-11-28 02:58:04,887 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 02:58:04,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:58:04,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 02:58:04,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:58:04,888 INFO L87 Difference]: Start difference. First operand 89 states and 127 transitions. Second operand 3 states. [2020-11-28 02:58:04,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:58:04,900 INFO L93 Difference]: Finished difference Result 89 states and 127 transitions. [2020-11-28 02:58:04,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 02:58:04,903 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-11-28 02:58:04,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:58:04,904 INFO L225 Difference]: With dead ends: 89 [2020-11-28 02:58:04,904 INFO L226 Difference]: Without dead ends: 41 [2020-11-28 02:58:04,905 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 02:58:04,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-11-28 02:58:04,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-11-28 02:58:04,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-11-28 02:58:04,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 58 transitions. [2020-11-28 02:58:04,916 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 58 transitions. Word has length 19 [2020-11-28 02:58:04,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:58:04,917 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 58 transitions. [2020-11-28 02:58:04,917 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 02:58:04,917 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 58 transitions. [2020-11-28 02:58:04,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-28 02:58:04,919 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:58:04,919 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:58:04,920 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 02:58:04,920 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:58:04,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:58:04,921 INFO L82 PathProgramCache]: Analyzing trace with hash -2025304256, now seen corresponding path program 1 times [2020-11-28 02:58:04,921 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:58:04,922 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208063175] [2020-11-28 02:58:04,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:58:04,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:58:05,063 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 02:58:05,063 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208063175] [2020-11-28 02:58:05,064 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:58:05,064 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 02:58:05,064 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569618580] [2020-11-28 02:58:05,064 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 02:58:05,076 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:58:05,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 02:58:05,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 02:58:05,077 INFO L87 Difference]: Start difference. First operand 41 states and 58 transitions. Second operand 5 states. [2020-11-28 02:58:05,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:58:05,156 INFO L93 Difference]: Finished difference Result 99 states and 145 transitions. [2020-11-28 02:58:05,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 02:58:05,157 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-11-28 02:58:05,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:58:05,158 INFO L225 Difference]: With dead ends: 99 [2020-11-28 02:58:05,159 INFO L226 Difference]: Without dead ends: 65 [2020-11-28 02:58:05,160 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-28 02:58:05,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-11-28 02:58:05,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 61. [2020-11-28 02:58:05,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-11-28 02:58:05,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 89 transitions. [2020-11-28 02:58:05,178 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 89 transitions. Word has length 24 [2020-11-28 02:58:05,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:58:05,179 INFO L481 AbstractCegarLoop]: Abstraction has 61 states and 89 transitions. [2020-11-28 02:58:05,179 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 02:58:05,179 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 89 transitions. [2020-11-28 02:58:05,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-28 02:58:05,181 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:58:05,181 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:58:05,182 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 02:58:05,182 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:58:05,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:58:05,182 INFO L82 PathProgramCache]: Analyzing trace with hash 193545241, now seen corresponding path program 1 times [2020-11-28 02:58:05,183 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:58:05,183 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55998031] [2020-11-28 02:58:05,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:58:05,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:58:05,276 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 02:58:05,276 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55998031] [2020-11-28 02:58:05,277 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:58:05,277 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 02:58:05,277 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109908646] [2020-11-28 02:58:05,277 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 02:58:05,277 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:58:05,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 02:58:05,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:58:05,278 INFO L87 Difference]: Start difference. First operand 61 states and 89 transitions. Second operand 3 states. [2020-11-28 02:58:05,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:58:05,322 INFO L93 Difference]: Finished difference Result 137 states and 203 transitions. [2020-11-28 02:58:05,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 02:58:05,323 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-11-28 02:58:05,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:58:05,324 INFO L225 Difference]: With dead ends: 137 [2020-11-28 02:58:05,324 INFO L226 Difference]: Without dead ends: 83 [2020-11-28 02:58:05,324 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 02:58:05,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2020-11-28 02:58:05,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 81. [2020-11-28 02:58:05,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-11-28 02:58:05,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 116 transitions. [2020-11-28 02:58:05,343 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 116 transitions. Word has length 25 [2020-11-28 02:58:05,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:58:05,344 INFO L481 AbstractCegarLoop]: Abstraction has 81 states and 116 transitions. [2020-11-28 02:58:05,344 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 02:58:05,345 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 116 transitions. [2020-11-28 02:58:05,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-28 02:58:05,346 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:58:05,347 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] [2020-11-28 02:58:05,347 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 02:58:05,347 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:58:05,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:58:05,348 INFO L82 PathProgramCache]: Analyzing trace with hash 433385865, now seen corresponding path program 1 times [2020-11-28 02:58:05,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:58:05,349 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270521120] [2020-11-28 02:58:05,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:58:05,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:58:05,428 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 02:58:05,429 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270521120] [2020-11-28 02:58:05,429 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:58:05,429 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 02:58:05,429 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961951400] [2020-11-28 02:58:05,430 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 02:58:05,430 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:58:05,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 02:58:05,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 02:58:05,431 INFO L87 Difference]: Start difference. First operand 81 states and 116 transitions. Second operand 5 states. [2020-11-28 02:58:05,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:58:05,567 INFO L93 Difference]: Finished difference Result 378 states and 552 transitions. [2020-11-28 02:58:05,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-28 02:58:05,568 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-11-28 02:58:05,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:58:05,570 INFO L225 Difference]: With dead ends: 378 [2020-11-28 02:58:05,570 INFO L226 Difference]: Without dead ends: 304 [2020-11-28 02:58:05,571 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-28 02:58:05,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2020-11-28 02:58:05,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 144. [2020-11-28 02:58:05,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-11-28 02:58:05,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 203 transitions. [2020-11-28 02:58:05,604 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 203 transitions. Word has length 27 [2020-11-28 02:58:05,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:58:05,604 INFO L481 AbstractCegarLoop]: Abstraction has 144 states and 203 transitions. [2020-11-28 02:58:05,604 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 02:58:05,604 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 203 transitions. [2020-11-28 02:58:05,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-28 02:58:05,606 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:58:05,606 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] [2020-11-28 02:58:05,606 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 02:58:05,606 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:58:05,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:58:05,607 INFO L82 PathProgramCache]: Analyzing trace with hash -1000759295, now seen corresponding path program 1 times [2020-11-28 02:58:05,607 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:58:05,607 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65058860] [2020-11-28 02:58:05,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:58:05,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:58:05,694 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 02:58:05,695 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65058860] [2020-11-28 02:58:05,695 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:58:05,695 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 02:58:05,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028139155] [2020-11-28 02:58:05,696 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 02:58:05,696 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:58:05,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 02:58:05,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 02:58:05,697 INFO L87 Difference]: Start difference. First operand 144 states and 203 transitions. Second operand 5 states. [2020-11-28 02:58:05,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:58:05,846 INFO L93 Difference]: Finished difference Result 529 states and 751 transitions. [2020-11-28 02:58:05,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-28 02:58:05,847 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2020-11-28 02:58:05,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:58:05,850 INFO L225 Difference]: With dead ends: 529 [2020-11-28 02:58:05,850 INFO L226 Difference]: Without dead ends: 392 [2020-11-28 02:58:05,852 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-28 02:58:05,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2020-11-28 02:58:05,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 142. [2020-11-28 02:58:05,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-11-28 02:58:05,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 197 transitions. [2020-11-28 02:58:05,878 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 197 transitions. Word has length 28 [2020-11-28 02:58:05,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:58:05,882 INFO L481 AbstractCegarLoop]: Abstraction has 142 states and 197 transitions. [2020-11-28 02:58:05,882 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 02:58:05,883 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 197 transitions. [2020-11-28 02:58:05,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-11-28 02:58:05,891 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:58:05,891 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:58:05,892 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-28 02:58:05,892 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:58:05,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:58:05,893 INFO L82 PathProgramCache]: Analyzing trace with hash 341285158, now seen corresponding path program 1 times [2020-11-28 02:58:05,893 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:58:05,895 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662298436] [2020-11-28 02:58:05,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:58:05,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:58:05,968 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 02:58:05,968 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662298436] [2020-11-28 02:58:05,968 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:58:05,969 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 02:58:05,969 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232692281] [2020-11-28 02:58:05,969 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 02:58:05,969 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:58:05,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 02:58:05,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 02:58:05,970 INFO L87 Difference]: Start difference. First operand 142 states and 197 transitions. Second operand 5 states. [2020-11-28 02:58:06,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:58:06,046 INFO L93 Difference]: Finished difference Result 429 states and 593 transitions. [2020-11-28 02:58:06,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 02:58:06,047 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35 [2020-11-28 02:58:06,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:58:06,049 INFO L225 Difference]: With dead ends: 429 [2020-11-28 02:58:06,049 INFO L226 Difference]: Without dead ends: 294 [2020-11-28 02:58:06,050 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 02:58:06,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-11-28 02:58:06,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 148. [2020-11-28 02:58:06,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2020-11-28 02:58:06,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 203 transitions. [2020-11-28 02:58:06,068 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 203 transitions. Word has length 35 [2020-11-28 02:58:06,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:58:06,068 INFO L481 AbstractCegarLoop]: Abstraction has 148 states and 203 transitions. [2020-11-28 02:58:06,068 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 02:58:06,068 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 203 transitions. [2020-11-28 02:58:06,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-11-28 02:58:06,069 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:58:06,069 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:58:06,069 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-28 02:58:06,069 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:58:06,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:58:06,070 INFO L82 PathProgramCache]: Analyzing trace with hash -669832092, now seen corresponding path program 1 times [2020-11-28 02:58:06,070 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:58:06,070 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488333419] [2020-11-28 02:58:06,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:58:06,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:58:06,133 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 02:58:06,133 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488333419] [2020-11-28 02:58:06,133 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:58:06,134 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-28 02:58:06,134 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700499741] [2020-11-28 02:58:06,134 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 02:58:06,134 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:58:06,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 02:58:06,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-28 02:58:06,135 INFO L87 Difference]: Start difference. First operand 148 states and 203 transitions. Second operand 6 states. [2020-11-28 02:58:06,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:58:06,251 INFO L93 Difference]: Finished difference Result 447 states and 611 transitions. [2020-11-28 02:58:06,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 02:58:06,252 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2020-11-28 02:58:06,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:58:06,254 INFO L225 Difference]: With dead ends: 447 [2020-11-28 02:58:06,255 INFO L226 Difference]: Without dead ends: 306 [2020-11-28 02:58:06,256 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-11-28 02:58:06,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2020-11-28 02:58:06,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 152. [2020-11-28 02:58:06,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2020-11-28 02:58:06,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 207 transitions. [2020-11-28 02:58:06,280 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 207 transitions. Word has length 35 [2020-11-28 02:58:06,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:58:06,280 INFO L481 AbstractCegarLoop]: Abstraction has 152 states and 207 transitions. [2020-11-28 02:58:06,280 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 02:58:06,280 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 207 transitions. [2020-11-28 02:58:06,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-11-28 02:58:06,281 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:58:06,281 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:58:06,281 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-28 02:58:06,282 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:58:06,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:58:06,283 INFO L82 PathProgramCache]: Analyzing trace with hash -1690900446, now seen corresponding path program 1 times [2020-11-28 02:58:06,283 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:58:06,284 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063276602] [2020-11-28 02:58:06,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:58:06,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:58:06,347 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 02:58:06,347 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063276602] [2020-11-28 02:58:06,347 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:58:06,348 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 02:58:06,348 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942980425] [2020-11-28 02:58:06,348 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 02:58:06,348 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:58:06,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 02:58:06,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:58:06,349 INFO L87 Difference]: Start difference. First operand 152 states and 207 transitions. Second operand 3 states. [2020-11-28 02:58:06,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:58:06,404 INFO L93 Difference]: Finished difference Result 383 states and 521 transitions. [2020-11-28 02:58:06,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 02:58:06,405 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 35 [2020-11-28 02:58:06,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:58:06,406 INFO L225 Difference]: With dead ends: 383 [2020-11-28 02:58:06,407 INFO L226 Difference]: Without dead ends: 238 [2020-11-28 02:58:06,407 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 02:58:06,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-11-28 02:58:06,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2020-11-28 02:58:06,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2020-11-28 02:58:06,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 315 transitions. [2020-11-28 02:58:06,436 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 315 transitions. Word has length 35 [2020-11-28 02:58:06,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:58:06,436 INFO L481 AbstractCegarLoop]: Abstraction has 238 states and 315 transitions. [2020-11-28 02:58:06,437 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 02:58:06,437 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 315 transitions. [2020-11-28 02:58:06,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-11-28 02:58:06,438 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:58:06,439 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:58:06,439 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-28 02:58:06,439 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:58:06,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:58:06,439 INFO L82 PathProgramCache]: Analyzing trace with hash -2015558942, now seen corresponding path program 1 times [2020-11-28 02:58:06,440 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:58:06,440 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675587880] [2020-11-28 02:58:06,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:58:06,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:58:06,501 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 02:58:06,502 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675587880] [2020-11-28 02:58:06,502 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:58:06,502 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 02:58:06,502 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067044706] [2020-11-28 02:58:06,503 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 02:58:06,503 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:58:06,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 02:58:06,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:58:06,504 INFO L87 Difference]: Start difference. First operand 238 states and 315 transitions. Second operand 3 states. [2020-11-28 02:58:06,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:58:06,571 INFO L93 Difference]: Finished difference Result 327 states and 434 transitions. [2020-11-28 02:58:06,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 02:58:06,572 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 36 [2020-11-28 02:58:06,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:58:06,575 INFO L225 Difference]: With dead ends: 327 [2020-11-28 02:58:06,575 INFO L226 Difference]: Without dead ends: 325 [2020-11-28 02:58:06,575 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 02:58:06,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2020-11-28 02:58:06,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 274. [2020-11-28 02:58:06,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2020-11-28 02:58:06,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 368 transitions. [2020-11-28 02:58:06,610 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 368 transitions. Word has length 36 [2020-11-28 02:58:06,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:58:06,610 INFO L481 AbstractCegarLoop]: Abstraction has 274 states and 368 transitions. [2020-11-28 02:58:06,610 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 02:58:06,610 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 368 transitions. [2020-11-28 02:58:06,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-11-28 02:58:06,612 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:58:06,612 INFO L422 BasicCegarLoop]: trace histogram [2, 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, 1] [2020-11-28 02:58:06,612 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-28 02:58:06,612 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:58:06,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:58:06,613 INFO L82 PathProgramCache]: Analyzing trace with hash -751672759, now seen corresponding path program 1 times [2020-11-28 02:58:06,613 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:58:06,613 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629784165] [2020-11-28 02:58:06,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:58:06,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:58:06,721 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-28 02:58:06,721 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629784165] [2020-11-28 02:58:06,721 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:58:06,721 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-28 02:58:06,721 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681448711] [2020-11-28 02:58:06,722 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 02:58:06,722 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:58:06,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 02:58:06,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-28 02:58:06,724 INFO L87 Difference]: Start difference. First operand 274 states and 368 transitions. Second operand 6 states. [2020-11-28 02:58:07,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:58:07,012 INFO L93 Difference]: Finished difference Result 801 states and 1075 transitions. [2020-11-28 02:58:07,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-28 02:58:07,012 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 54 [2020-11-28 02:58:07,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:58:07,016 INFO L225 Difference]: With dead ends: 801 [2020-11-28 02:58:07,016 INFO L226 Difference]: Without dead ends: 534 [2020-11-28 02:58:07,017 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-11-28 02:58:07,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2020-11-28 02:58:07,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 258. [2020-11-28 02:58:07,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2020-11-28 02:58:07,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 339 transitions. [2020-11-28 02:58:07,073 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 339 transitions. Word has length 54 [2020-11-28 02:58:07,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:58:07,073 INFO L481 AbstractCegarLoop]: Abstraction has 258 states and 339 transitions. [2020-11-28 02:58:07,074 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 02:58:07,074 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 339 transitions. [2020-11-28 02:58:07,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-11-28 02:58:07,075 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:58:07,075 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-11-28 02:58:07,075 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-28 02:58:07,075 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:58:07,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:58:07,076 INFO L82 PathProgramCache]: Analyzing trace with hash 1255096313, now seen corresponding path program 1 times [2020-11-28 02:58:07,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:58:07,076 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478547806] [2020-11-28 02:58:07,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:58:07,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:58:07,160 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:58:07,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:58:07,253 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:58:07,337 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:58:07,337 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 02:58:07,337 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-28 02:58:07,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:58:07 BoogieIcfgContainer [2020-11-28 02:58:07,564 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 02:58:07,565 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 02:58:07,565 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 02:58:07,565 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 02:58:07,565 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:58:04" (3/4) ... [2020-11-28 02:58:07,567 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 02:58:07,774 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_05b1d8ab-20e6-41de-a741-489e75593361/bin/uautomizer/witness.graphml [2020-11-28 02:58:07,775 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 02:58:07,776 INFO L168 Benchmark]: Toolchain (without parser) took 5336.27 ms. Allocated memory was 90.2 MB in the beginning and 132.1 MB in the end (delta: 41.9 MB). Free memory was 53.6 MB in the beginning and 89.9 MB in the end (delta: -36.4 MB). Peak memory consumption was 65.4 MB. Max. memory is 16.1 GB. [2020-11-28 02:58:07,777 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 90.2 MB. Free memory is still 70.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:58:07,778 INFO L168 Benchmark]: CACSL2BoogieTranslator took 606.62 ms. Allocated memory is still 90.2 MB. Free memory was 53.3 MB in the beginning and 57.0 MB in the end (delta: -3.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-28 02:58:07,778 INFO L168 Benchmark]: Boogie Procedure Inliner took 88.49 ms. Allocated memory is still 90.2 MB. Free memory was 57.0 MB in the beginning and 53.6 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 02:58:07,778 INFO L168 Benchmark]: Boogie Preprocessor took 48.15 ms. Allocated memory is still 90.2 MB. Free memory was 53.4 MB in the beginning and 51.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 02:58:07,779 INFO L168 Benchmark]: RCFGBuilder took 946.19 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 51.0 MB in the beginning and 47.3 MB in the end (delta: 3.7 MB). Peak memory consumption was 24.1 MB. Max. memory is 16.1 GB. [2020-11-28 02:58:07,779 INFO L168 Benchmark]: TraceAbstraction took 3417.29 ms. Allocated memory was 109.1 MB in the beginning and 132.1 MB in the end (delta: 23.1 MB). Free memory was 46.8 MB in the beginning and 47.1 MB in the end (delta: -275.8 kB). Peak memory consumption was 22.6 MB. Max. memory is 16.1 GB. [2020-11-28 02:58:07,779 INFO L168 Benchmark]: Witness Printer took 210.07 ms. Allocated memory is still 132.1 MB. Free memory was 47.1 MB in the beginning and 89.9 MB in the end (delta: -42.8 MB). Peak memory consumption was 19.1 MB. Max. memory is 16.1 GB. [2020-11-28 02:58:07,781 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 90.2 MB. Free memory is still 70.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 606.62 ms. Allocated memory is still 90.2 MB. Free memory was 53.3 MB in the beginning and 57.0 MB in the end (delta: -3.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 88.49 ms. Allocated memory is still 90.2 MB. Free memory was 57.0 MB in the beginning and 53.6 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 48.15 ms. Allocated memory is still 90.2 MB. Free memory was 53.4 MB in the beginning and 51.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 946.19 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 51.0 MB in the beginning and 47.3 MB in the end (delta: 3.7 MB). Peak memory consumption was 24.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3417.29 ms. Allocated memory was 109.1 MB in the beginning and 132.1 MB in the end (delta: 23.1 MB). Free memory was 46.8 MB in the beginning and 47.1 MB in the end (delta: -275.8 kB). Peak memory consumption was 22.6 MB. Max. memory is 16.1 GB. * Witness Printer took 210.07 ms. Allocated memory is still 132.1 MB. Free memory was 47.1 MB in the beginning and 89.9 MB in the end (delta: -42.8 MB). Peak memory consumption was 19.1 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: [L134] int pumpRunning = 0; [L135] int systemActive = 1; [L366] int cleanupTimeShifts = 4; [L464] int methAndRunningLastTime ; [L504] int waterLevel = 1; [L505] int methaneLevelCritical = 0; [L767] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L441] int retValue_acc ; [L442] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L357] int retValue_acc ; [L360] retValue_acc = 1 [L361] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L448] tmp = valid_product() [L450] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L469] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L58] int splverifierCounter ; [L59] int tmp ; [L60] int tmp___0 ; [L61] int tmp___1 ; [L62] int tmp___2 ; [L65] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L67] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L69] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L75] tmp = __VERIFIER_nondet_int() [L77] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L522] COND TRUE waterLevel < 2 [L523] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L85] tmp___0 = __VERIFIER_nondet_int() [L87] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L95] tmp___2 = __VERIFIER_nondet_int() [L97] COND TRUE \read(tmp___2) [L323] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L142] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L149] COND TRUE \read(systemActive) [L171] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L174] COND TRUE ! pumpRunning [L286] int retValue_acc ; [L287] int tmp ; [L288] int tmp___0 ; [L584] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L587] COND FALSE !(waterLevel < 2) [L591] retValue_acc = 0 [L592] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L292] tmp = isHighWaterSensorDry() [L294] COND FALSE !(\read(tmp)) [L297] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L299] retValue_acc = tmp___0 [L300] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L176] tmp = isHighWaterLevel() [L178] COND TRUE \read(tmp) [L205] int tmp ; [L230] int retValue_acc ; [L543] int retValue_acc ; [L546] retValue_acc = methaneLevelCritical [L547] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L234] retValue_acc = isMethaneLevelCritical() [L236] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L209] tmp = isMethaneAlarm() [L211] COND FALSE !(\read(tmp)) [L199] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L474] int tmp ; [L475] int tmp___0 ; [L543] int retValue_acc ; [L546] retValue_acc = methaneLevelCritical [L547] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L479] tmp = isMethaneLevelCritical() [L481] COND FALSE !(\read(tmp)) [L497] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L67] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L69] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L75] tmp = __VERIFIER_nondet_int() [L77] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L85] tmp___0 = __VERIFIER_nondet_int() [L87] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L534] COND FALSE !(\read(methaneLevelCritical)) [L537] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L95] tmp___2 = __VERIFIER_nondet_int() [L97] COND TRUE \read(tmp___2) [L323] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L142] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L510] COND TRUE waterLevel > 0 [L511] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L149] COND TRUE \read(systemActive) [L171] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L174] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L474] int tmp ; [L475] int tmp___0 ; [L543] int retValue_acc ; [L546] retValue_acc = methaneLevelCritical [L547] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L479] tmp = isMethaneLevelCritical() [L481] COND TRUE \read(tmp) [L241] int retValue_acc ; [L244] retValue_acc = pumpRunning [L245] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L483] tmp___0 = isPumpRunning() [L485] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L486] COND FALSE !(\read(methAndRunningLastTime)) [L491] methAndRunningLastTime = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L67] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L69] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L75] tmp = __VERIFIER_nondet_int() [L77] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L85] tmp___0 = __VERIFIER_nondet_int() [L87] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L95] tmp___2 = __VERIFIER_nondet_int() [L97] COND TRUE \read(tmp___2) [L323] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L142] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L510] COND TRUE waterLevel > 0 [L511] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L149] COND TRUE \read(systemActive) [L171] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L174] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L474] int tmp ; [L475] int tmp___0 ; [L543] int retValue_acc ; [L546] retValue_acc = methaneLevelCritical [L547] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L479] tmp = isMethaneLevelCritical() [L481] COND TRUE \read(tmp) [L241] int retValue_acc ; [L244] retValue_acc = pumpRunning [L245] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L483] tmp___0 = isPumpRunning() [L485] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L486] COND TRUE \read(methAndRunningLastTime) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L3] __assert_fail("0", "minepump_spec2_product44.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 96 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.1s, OverallIterations: 12, TraceHistogramMax: 3, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 910 SDtfs, 1379 SDslu, 1482 SDs, 0 SdLazy, 188 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 77 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=274occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 11 MinimizatonAttempts, 1043 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 405 NumberOfCodeBlocks, 405 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 325 ConstructedInterpolants, 0 QuantifiedInterpolants, 19587 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 17/17 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...