./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product43.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_763c589d-a02e-4aa1-bcfb-b732bd0ac617/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_763c589d-a02e-4aa1-bcfb-b732bd0ac617/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_763c589d-a02e-4aa1-bcfb-b732bd0ac617/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_763c589d-a02e-4aa1-bcfb-b732bd0ac617/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product43.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_763c589d-a02e-4aa1-bcfb-b732bd0ac617/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_763c589d-a02e-4aa1-bcfb-b732bd0ac617/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 ae87ed11769153d118b606184b0208d26c3c2750 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:04:29,766 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:04:29,768 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:04:29,834 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:04:29,835 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:04:29,844 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:04:29,848 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:04:29,856 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:04:29,859 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:04:29,861 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:04:29,862 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:04:29,866 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:04:29,866 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:04:29,875 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:04:29,877 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:04:29,879 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:04:29,882 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:04:29,885 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:04:29,889 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:04:29,896 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:04:29,903 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:04:29,905 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:04:29,907 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:04:29,909 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:04:29,916 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:04:29,917 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:04:29,917 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:04:29,919 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:04:29,920 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:04:29,922 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:04:29,922 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:04:29,924 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:04:29,926 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:04:29,927 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:04:29,929 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:04:29,929 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:04:29,930 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:04:29,930 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:04:29,931 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:04:29,932 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:04:29,932 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:04:29,935 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_763c589d-a02e-4aa1-bcfb-b732bd0ac617/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:04:29,988 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:04:29,989 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:04:29,991 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:04:29,992 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:04:29,992 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:04:29,992 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:04:29,993 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:04:29,993 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:04:29,993 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:04:29,993 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:04:29,995 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:04:29,995 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:04:29,995 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:04:29,995 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:04:29,996 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:04:29,996 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:04:29,996 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:04:29,997 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:04:29,997 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:04:29,997 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:04:29,997 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:04:29,998 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:04:29,998 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:04:29,998 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:04:29,998 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:04:29,999 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:04:29,999 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:04:29,999 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:04:29,999 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:04:30,000 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_763c589d-a02e-4aa1-bcfb-b732bd0ac617/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_763c589d-a02e-4aa1-bcfb-b732bd0ac617/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ae87ed11769153d118b606184b0208d26c3c2750 [2020-11-28 03:04:30,355 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:04:30,396 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:04:30,401 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:04:30,403 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:04:30,405 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:04:30,406 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_763c589d-a02e-4aa1-bcfb-b732bd0ac617/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec1_product43.cil.c [2020-11-28 03:04:30,524 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_763c589d-a02e-4aa1-bcfb-b732bd0ac617/bin/uautomizer/data/8aaf82b2a/498413abf9f64effad6c21efe3f720ab/FLAGa065cbd91 [2020-11-28 03:04:31,079 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:04:31,080 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_763c589d-a02e-4aa1-bcfb-b732bd0ac617/sv-benchmarks/c/product-lines/minepump_spec1_product43.cil.c [2020-11-28 03:04:31,102 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_763c589d-a02e-4aa1-bcfb-b732bd0ac617/bin/uautomizer/data/8aaf82b2a/498413abf9f64effad6c21efe3f720ab/FLAGa065cbd91 [2020-11-28 03:04:31,367 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_763c589d-a02e-4aa1-bcfb-b732bd0ac617/bin/uautomizer/data/8aaf82b2a/498413abf9f64effad6c21efe3f720ab [2020-11-28 03:04:31,370 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:04:31,371 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:04:31,376 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:04:31,376 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:04:31,380 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:04:31,381 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:04:31" (1/1) ... [2020-11-28 03:04:31,385 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21ce5b24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:31, skipping insertion in model container [2020-11-28 03:04:31,385 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:04:31" (1/1) ... [2020-11-28 03:04:31,392 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:04:31,448 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:04:31,791 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:04:31,802 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:04:31,881 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:04:31,916 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:04:31,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:31 WrapperNode [2020-11-28 03:04:31,917 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:04:31,918 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:04:31,919 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:04:31,919 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:04:31,927 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:31" (1/1) ... [2020-11-28 03:04:31,946 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:31" (1/1) ... [2020-11-28 03:04:31,997 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:04:32,003 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:04:32,003 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:04:32,004 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:04:32,013 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:31" (1/1) ... [2020-11-28 03:04:32,013 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:31" (1/1) ... [2020-11-28 03:04:32,027 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:31" (1/1) ... [2020-11-28 03:04:32,034 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:31" (1/1) ... [2020-11-28 03:04:32,045 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:31" (1/1) ... [2020-11-28 03:04:32,070 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:31" (1/1) ... [2020-11-28 03:04:32,073 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:31" (1/1) ... [2020-11-28 03:04:32,077 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:04:32,078 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:04:32,078 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:04:32,078 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:04:32,091 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_763c589d-a02e-4aa1-bcfb-b732bd0ac617/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:04:32,155 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:04:32,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:04:32,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:04:32,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:04:33,133 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:04:33,133 INFO L298 CfgBuilder]: Removed 124 assume(true) statements. [2020-11-28 03:04:33,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:04:33 BoogieIcfgContainer [2020-11-28 03:04:33,136 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:04:33,139 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:04:33,140 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:04:33,144 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:04:33,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:04:31" (1/3) ... [2020-11-28 03:04:33,145 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70e6f719 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:04:33, skipping insertion in model container [2020-11-28 03:04:33,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:31" (2/3) ... [2020-11-28 03:04:33,145 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70e6f719 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:04:33, skipping insertion in model container [2020-11-28 03:04:33,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:04:33" (3/3) ... [2020-11-28 03:04:33,147 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product43.cil.c [2020-11-28 03:04:33,159 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:04:33,164 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-28 03:04:33,177 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-28 03:04:33,206 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:04:33,206 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:04:33,206 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:04:33,206 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:04:33,206 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:04:33,207 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:04:33,207 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:04:33,207 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:04:33,222 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states. [2020-11-28 03:04:33,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-28 03:04:33,228 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:04:33,229 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:04:33,229 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:04:33,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:04:33,235 INFO L82 PathProgramCache]: Analyzing trace with hash -1660407341, now seen corresponding path program 1 times [2020-11-28 03:04:33,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:04:33,245 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940689946] [2020-11-28 03:04:33,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:04:33,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:04:33,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:04:33,521 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940689946] [2020-11-28 03:04:33,522 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:04:33,522 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:04:33,524 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086439339] [2020-11-28 03:04:33,529 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 03:04:33,529 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:04:33,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 03:04:33,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:04:33,568 INFO L87 Difference]: Start difference. First operand 92 states. Second operand 2 states. [2020-11-28 03:04:33,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:04:33,618 INFO L93 Difference]: Finished difference Result 175 states and 260 transitions. [2020-11-28 03:04:33,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 03:04:33,620 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-11-28 03:04:33,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:04:33,640 INFO L225 Difference]: With dead ends: 175 [2020-11-28 03:04:33,640 INFO L226 Difference]: Without dead ends: 85 [2020-11-28 03:04:33,651 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:04:33,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-11-28 03:04:33,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2020-11-28 03:04:33,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-11-28 03:04:33,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 120 transitions. [2020-11-28 03:04:33,699 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 120 transitions. Word has length 16 [2020-11-28 03:04:33,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:04:33,700 INFO L481 AbstractCegarLoop]: Abstraction has 85 states and 120 transitions. [2020-11-28 03:04:33,700 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 03:04:33,700 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 120 transitions. [2020-11-28 03:04:33,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-28 03:04:33,702 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:04:33,702 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:04:33,702 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:04:33,703 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:04:33,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:04:33,704 INFO L82 PathProgramCache]: Analyzing trace with hash 1587803058, now seen corresponding path program 1 times [2020-11-28 03:04:33,704 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:04:33,704 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398722450] [2020-11-28 03:04:33,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:04:33,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:04:33,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:04:33,875 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398722450] [2020-11-28 03:04:33,875 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:04:33,875 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:04:33,876 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812088584] [2020-11-28 03:04:33,877 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:04:33,877 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:04:33,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:04:33,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:04:33,879 INFO L87 Difference]: Start difference. First operand 85 states and 120 transitions. Second operand 3 states. [2020-11-28 03:04:33,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:04:33,897 INFO L93 Difference]: Finished difference Result 85 states and 120 transitions. [2020-11-28 03:04:33,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:04:33,901 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-11-28 03:04:33,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:04:33,903 INFO L225 Difference]: With dead ends: 85 [2020-11-28 03:04:33,903 INFO L226 Difference]: Without dead ends: 39 [2020-11-28 03:04:33,905 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 03:04:33,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-11-28 03:04:33,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-11-28 03:04:33,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-11-28 03:04:33,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 55 transitions. [2020-11-28 03:04:33,920 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 55 transitions. Word has length 17 [2020-11-28 03:04:33,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:04:33,920 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 55 transitions. [2020-11-28 03:04:33,921 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:04:33,921 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 55 transitions. [2020-11-28 03:04:33,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-28 03:04:33,922 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:04:33,922 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:04:33,922 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:04:33,922 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:04:33,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:04:33,923 INFO L82 PathProgramCache]: Analyzing trace with hash 337421565, now seen corresponding path program 1 times [2020-11-28 03:04:33,924 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:04:33,924 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094811677] [2020-11-28 03:04:33,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:04:33,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:04:34,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:04:34,043 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094811677] [2020-11-28 03:04:34,043 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:04:34,043 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:04:34,044 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340779345] [2020-11-28 03:04:34,044 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:04:34,044 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:04:34,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:04:34,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:04:34,045 INFO L87 Difference]: Start difference. First operand 39 states and 55 transitions. Second operand 3 states. [2020-11-28 03:04:34,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:04:34,062 INFO L93 Difference]: Finished difference Result 105 states and 153 transitions. [2020-11-28 03:04:34,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:04:34,062 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-11-28 03:04:34,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:04:34,063 INFO L225 Difference]: With dead ends: 105 [2020-11-28 03:04:34,064 INFO L226 Difference]: Without dead ends: 72 [2020-11-28 03:04:34,064 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:04:34,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-11-28 03:04:34,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 68. [2020-11-28 03:04:34,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-11-28 03:04:34,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 99 transitions. [2020-11-28 03:04:34,074 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 99 transitions. Word has length 22 [2020-11-28 03:04:34,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:04:34,074 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 99 transitions. [2020-11-28 03:04:34,074 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:04:34,074 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 99 transitions. [2020-11-28 03:04:34,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-28 03:04:34,075 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:04:34,075 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] [2020-11-28 03:04:34,076 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 03:04:34,076 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:04:34,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:04:34,077 INFO L82 PathProgramCache]: Analyzing trace with hash -1224569535, now seen corresponding path program 1 times [2020-11-28 03:04:34,077 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:04:34,077 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099028474] [2020-11-28 03:04:34,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:04:34,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:04:34,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:04:34,157 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099028474] [2020-11-28 03:04:34,157 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:04:34,158 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:04:34,158 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882274445] [2020-11-28 03:04:34,158 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:04:34,158 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:04:34,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:04:34,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:04:34,160 INFO L87 Difference]: Start difference. First operand 68 states and 99 transitions. Second operand 3 states. [2020-11-28 03:04:34,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:04:34,209 INFO L93 Difference]: Finished difference Result 171 states and 254 transitions. [2020-11-28 03:04:34,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:04:34,210 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-11-28 03:04:34,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:04:34,211 INFO L225 Difference]: With dead ends: 171 [2020-11-28 03:04:34,211 INFO L226 Difference]: Without dead ends: 109 [2020-11-28 03:04:34,212 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:04:34,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-11-28 03:04:34,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 107. [2020-11-28 03:04:34,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-11-28 03:04:34,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 155 transitions. [2020-11-28 03:04:34,232 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 155 transitions. Word has length 23 [2020-11-28 03:04:34,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:04:34,233 INFO L481 AbstractCegarLoop]: Abstraction has 107 states and 155 transitions. [2020-11-28 03:04:34,233 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:04:34,233 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 155 transitions. [2020-11-28 03:04:34,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-28 03:04:34,234 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:04:34,234 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:04:34,235 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 03:04:34,235 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:04:34,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:04:34,236 INFO L82 PathProgramCache]: Analyzing trace with hash -840484654, now seen corresponding path program 1 times [2020-11-28 03:04:34,236 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:04:34,236 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977358979] [2020-11-28 03:04:34,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:04:34,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:04:34,347 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 03:04:34,348 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977358979] [2020-11-28 03:04:34,348 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:04:34,348 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:04:34,348 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845557516] [2020-11-28 03:04:34,349 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:04:34,349 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:04:34,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:04:34,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:04:34,350 INFO L87 Difference]: Start difference. First operand 107 states and 155 transitions. Second operand 5 states. [2020-11-28 03:04:34,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:04:34,486 INFO L93 Difference]: Finished difference Result 535 states and 792 transitions. [2020-11-28 03:04:34,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-28 03:04:34,486 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-11-28 03:04:34,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:04:34,489 INFO L225 Difference]: With dead ends: 535 [2020-11-28 03:04:34,489 INFO L226 Difference]: Without dead ends: 434 [2020-11-28 03:04:34,491 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-28 03:04:34,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2020-11-28 03:04:34,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 198. [2020-11-28 03:04:34,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-11-28 03:04:34,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 283 transitions. [2020-11-28 03:04:34,538 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 283 transitions. Word has length 25 [2020-11-28 03:04:34,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:04:34,539 INFO L481 AbstractCegarLoop]: Abstraction has 198 states and 283 transitions. [2020-11-28 03:04:34,539 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:04:34,539 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 283 transitions. [2020-11-28 03:04:34,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-28 03:04:34,545 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:04:34,545 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:04:34,545 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 03:04:34,546 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:04:34,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:04:34,546 INFO L82 PathProgramCache]: Analyzing trace with hash -1044291748, now seen corresponding path program 1 times [2020-11-28 03:04:34,546 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:04:34,547 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313967398] [2020-11-28 03:04:34,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:04:34,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:04:34,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:04:34,661 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313967398] [2020-11-28 03:04:34,661 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:04:34,661 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:04:34,661 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933192117] [2020-11-28 03:04:34,662 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:04:34,662 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:04:34,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:04:34,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:04:34,663 INFO L87 Difference]: Start difference. First operand 198 states and 283 transitions. Second operand 5 states. [2020-11-28 03:04:34,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:04:34,852 INFO L93 Difference]: Finished difference Result 572 states and 822 transitions. [2020-11-28 03:04:34,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-28 03:04:34,853 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2020-11-28 03:04:34,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:04:34,857 INFO L225 Difference]: With dead ends: 572 [2020-11-28 03:04:34,857 INFO L226 Difference]: Without dead ends: 570 [2020-11-28 03:04:34,858 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-28 03:04:34,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2020-11-28 03:04:34,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 198. [2020-11-28 03:04:34,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-11-28 03:04:34,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 281 transitions. [2020-11-28 03:04:34,896 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 281 transitions. Word has length 26 [2020-11-28 03:04:34,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:04:34,901 INFO L481 AbstractCegarLoop]: Abstraction has 198 states and 281 transitions. [2020-11-28 03:04:34,901 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:04:34,901 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 281 transitions. [2020-11-28 03:04:34,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-11-28 03:04:34,905 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:04:34,906 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:04:34,907 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-28 03:04:34,907 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:04:34,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:04:34,911 INFO L82 PathProgramCache]: Analyzing trace with hash 895513141, now seen corresponding path program 1 times [2020-11-28 03:04:34,911 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:04:34,911 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689579088] [2020-11-28 03:04:34,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:04:34,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:04:34,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:04:34,981 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689579088] [2020-11-28 03:04:34,982 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:04:34,982 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:04:34,982 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586023549] [2020-11-28 03:04:34,982 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:04:34,982 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:04:34,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:04:34,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:04:34,983 INFO L87 Difference]: Start difference. First operand 198 states and 281 transitions. Second operand 5 states. [2020-11-28 03:04:35,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:04:35,050 INFO L93 Difference]: Finished difference Result 550 states and 772 transitions. [2020-11-28 03:04:35,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:04:35,051 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2020-11-28 03:04:35,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:04:35,054 INFO L225 Difference]: With dead ends: 550 [2020-11-28 03:04:35,054 INFO L226 Difference]: Without dead ends: 358 [2020-11-28 03:04:35,055 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:04:35,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2020-11-28 03:04:35,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 210. [2020-11-28 03:04:35,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2020-11-28 03:04:35,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 293 transitions. [2020-11-28 03:04:35,074 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 293 transitions. Word has length 33 [2020-11-28 03:04:35,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:04:35,074 INFO L481 AbstractCegarLoop]: Abstraction has 210 states and 293 transitions. [2020-11-28 03:04:35,074 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:04:35,075 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 293 transitions. [2020-11-28 03:04:35,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-11-28 03:04:35,075 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:04:35,076 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:04:35,076 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-28 03:04:35,076 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:04:35,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:04:35,077 INFO L82 PathProgramCache]: Analyzing trace with hash 308707127, now seen corresponding path program 1 times [2020-11-28 03:04:35,077 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:04:35,078 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45100568] [2020-11-28 03:04:35,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:04:35,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:04:35,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:04:35,173 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45100568] [2020-11-28 03:04:35,174 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:04:35,174 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:04:35,174 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238019152] [2020-11-28 03:04:35,174 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:04:35,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:04:35,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:04:35,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:04:35,176 INFO L87 Difference]: Start difference. First operand 210 states and 293 transitions. Second operand 4 states. [2020-11-28 03:04:35,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:04:35,238 INFO L93 Difference]: Finished difference Result 510 states and 706 transitions. [2020-11-28 03:04:35,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:04:35,239 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2020-11-28 03:04:35,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:04:35,241 INFO L225 Difference]: With dead ends: 510 [2020-11-28 03:04:35,241 INFO L226 Difference]: Without dead ends: 306 [2020-11-28 03:04:35,243 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:04:35,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2020-11-28 03:04:35,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 218. [2020-11-28 03:04:35,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-11-28 03:04:35,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 301 transitions. [2020-11-28 03:04:35,270 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 301 transitions. Word has length 33 [2020-11-28 03:04:35,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:04:35,271 INFO L481 AbstractCegarLoop]: Abstraction has 218 states and 301 transitions. [2020-11-28 03:04:35,271 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:04:35,271 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 301 transitions. [2020-11-28 03:04:35,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-11-28 03:04:35,272 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:04:35,272 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:04:35,272 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-28 03:04:35,274 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:04:35,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:04:35,274 INFO L82 PathProgramCache]: Analyzing trace with hash -971156551, now seen corresponding path program 1 times [2020-11-28 03:04:35,275 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:04:35,275 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163804214] [2020-11-28 03:04:35,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:04:35,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:04:35,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:04:35,344 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163804214] [2020-11-28 03:04:35,344 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:04:35,344 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:04:35,345 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082917733] [2020-11-28 03:04:35,345 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:04:35,345 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:04:35,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:04:35,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:04:35,346 INFO L87 Difference]: Start difference. First operand 218 states and 301 transitions. Second operand 3 states. [2020-11-28 03:04:35,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:04:35,399 INFO L93 Difference]: Finished difference Result 530 states and 726 transitions. [2020-11-28 03:04:35,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:04:35,400 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2020-11-28 03:04:35,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:04:35,403 INFO L225 Difference]: With dead ends: 530 [2020-11-28 03:04:35,403 INFO L226 Difference]: Without dead ends: 318 [2020-11-28 03:04:35,404 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:04:35,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2020-11-28 03:04:35,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 318. [2020-11-28 03:04:35,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2020-11-28 03:04:35,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 423 transitions. [2020-11-28 03:04:35,449 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 423 transitions. Word has length 33 [2020-11-28 03:04:35,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:04:35,451 INFO L481 AbstractCegarLoop]: Abstraction has 318 states and 423 transitions. [2020-11-28 03:04:35,451 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:04:35,451 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 423 transitions. [2020-11-28 03:04:35,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-11-28 03:04:35,454 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:04:35,455 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:04:35,455 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-28 03:04:35,455 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:04:35,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:04:35,456 INFO L82 PathProgramCache]: Analyzing trace with hash 186139387, now seen corresponding path program 1 times [2020-11-28 03:04:35,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:04:35,456 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112003778] [2020-11-28 03:04:35,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:04:35,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:04:35,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:04:35,563 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112003778] [2020-11-28 03:04:35,564 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:04:35,564 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-28 03:04:35,564 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296798554] [2020-11-28 03:04:35,564 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 03:04:35,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:04:35,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 03:04:35,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:04:35,565 INFO L87 Difference]: Start difference. First operand 318 states and 423 transitions. Second operand 6 states. [2020-11-28 03:04:35,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:04:35,846 INFO L93 Difference]: Finished difference Result 992 states and 1318 transitions. [2020-11-28 03:04:35,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-28 03:04:35,849 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2020-11-28 03:04:35,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:04:35,853 INFO L225 Difference]: With dead ends: 992 [2020-11-28 03:04:35,853 INFO L226 Difference]: Without dead ends: 680 [2020-11-28 03:04:35,855 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 03:04:35,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2020-11-28 03:04:35,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 318. [2020-11-28 03:04:35,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2020-11-28 03:04:35,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 415 transitions. [2020-11-28 03:04:35,890 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 415 transitions. Word has length 34 [2020-11-28 03:04:35,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:04:35,892 INFO L481 AbstractCegarLoop]: Abstraction has 318 states and 415 transitions. [2020-11-28 03:04:35,892 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 03:04:35,893 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 415 transitions. [2020-11-28 03:04:35,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-11-28 03:04:35,894 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:04:35,894 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:04:35,894 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-28 03:04:35,894 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:04:35,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:04:35,895 INFO L82 PathProgramCache]: Analyzing trace with hash 649064016, now seen corresponding path program 1 times [2020-11-28 03:04:35,895 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:04:35,895 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155195518] [2020-11-28 03:04:35,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:04:35,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:04:35,978 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:04:36,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:04:36,049 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:04:36,129 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:04:36,130 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:04:36,130 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-28 03:04:36,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:04:36 BoogieIcfgContainer [2020-11-28 03:04:36,328 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:04:36,329 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:04:36,329 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:04:36,329 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:04:36,330 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:04:33" (3/4) ... [2020-11-28 03:04:36,332 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 03:04:36,489 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_763c589d-a02e-4aa1-bcfb-b732bd0ac617/bin/uautomizer/witness.graphml [2020-11-28 03:04:36,489 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:04:36,492 INFO L168 Benchmark]: Toolchain (without parser) took 5119.05 ms. Allocated memory was 81.8 MB in the beginning and 132.1 MB in the end (delta: 50.3 MB). Free memory was 47.1 MB in the beginning and 89.2 MB in the end (delta: -42.1 MB). Peak memory consumption was 65.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:04:36,492 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 81.8 MB. Free memory was 54.9 MB in the beginning and 54.8 MB in the end (delta: 25.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:04:36,493 INFO L168 Benchmark]: CACSL2BoogieTranslator took 541.57 ms. Allocated memory was 81.8 MB in the beginning and 109.1 MB in the end (delta: 27.3 MB). Free memory was 46.9 MB in the beginning and 75.9 MB in the end (delta: -29.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:04:36,496 INFO L168 Benchmark]: Boogie Procedure Inliner took 83.76 ms. Allocated memory is still 109.1 MB. Free memory was 75.9 MB in the beginning and 72.6 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:04:36,496 INFO L168 Benchmark]: Boogie Preprocessor took 74.10 ms. Allocated memory is still 109.1 MB. Free memory was 72.6 MB in the beginning and 70.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:04:36,497 INFO L168 Benchmark]: RCFGBuilder took 1058.85 ms. Allocated memory is still 109.1 MB. Free memory was 70.1 MB in the beginning and 59.8 MB in the end (delta: 10.2 MB). Peak memory consumption was 32.3 MB. Max. memory is 16.1 GB. [2020-11-28 03:04:36,497 INFO L168 Benchmark]: TraceAbstraction took 3189.63 ms. Allocated memory was 109.1 MB in the beginning and 132.1 MB in the end (delta: 23.1 MB). Free memory was 59.0 MB in the beginning and 34.6 MB in the end (delta: 24.4 MB). Peak memory consumption was 47.0 MB. Max. memory is 16.1 GB. [2020-11-28 03:04:36,498 INFO L168 Benchmark]: Witness Printer took 160.32 ms. Allocated memory is still 132.1 MB. Free memory was 34.6 MB in the beginning and 89.2 MB in the end (delta: -54.7 MB). Peak memory consumption was 3.0 MB. Max. memory is 16.1 GB. [2020-11-28 03:04:36,501 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 81.8 MB. Free memory was 54.9 MB in the beginning and 54.8 MB in the end (delta: 25.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 541.57 ms. Allocated memory was 81.8 MB in the beginning and 109.1 MB in the end (delta: 27.3 MB). Free memory was 46.9 MB in the beginning and 75.9 MB in the end (delta: -29.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 83.76 ms. Allocated memory is still 109.1 MB. Free memory was 75.9 MB in the beginning and 72.6 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 74.10 ms. Allocated memory is still 109.1 MB. Free memory was 72.6 MB in the beginning and 70.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1058.85 ms. Allocated memory is still 109.1 MB. Free memory was 70.1 MB in the beginning and 59.8 MB in the end (delta: 10.2 MB). Peak memory consumption was 32.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3189.63 ms. Allocated memory was 109.1 MB in the beginning and 132.1 MB in the end (delta: 23.1 MB). Free memory was 59.0 MB in the beginning and 34.6 MB in the end (delta: 24.4 MB). Peak memory consumption was 47.0 MB. Max. memory is 16.1 GB. * Witness Printer took 160.32 ms. Allocated memory is still 132.1 MB. Free memory was 34.6 MB in the beginning and 89.2 MB in the end (delta: -54.7 MB). Peak memory consumption was 3.0 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: [L49] int waterLevel = 1; [L50] int methaneLevelCritical = 0; [L149] int pumpRunning = 0; [L150] int systemActive = 1; [L438] int cleanupTimeShifts = 4; [L706] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L514] int retValue_acc ; [L515] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L929] int retValue_acc ; [L932] retValue_acc = 1 [L933] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L521] tmp = valid_product() [L523] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L337] int splverifierCounter ; [L338] int tmp ; [L339] int tmp___0 ; [L340] int tmp___1 ; [L341] int tmp___2 ; [L344] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L346] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L348] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L354] tmp = __VERIFIER_nondet_int() [L356] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L67] COND TRUE waterLevel < 2 [L68] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L364] tmp___0 = __VERIFIER_nondet_int() [L366] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L374] tmp___2 = __VERIFIER_nondet_int() [L376] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L157] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L164] COND TRUE \read(systemActive) [L186] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L189] COND TRUE ! pumpRunning [L301] int retValue_acc ; [L302] int tmp ; [L303] int tmp___0 ; [L129] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L132] COND FALSE !(waterLevel < 2) [L136] retValue_acc = 0 [L137] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L307] tmp = isHighWaterSensorDry() [L309] COND FALSE !(\read(tmp)) [L312] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L314] retValue_acc = tmp___0 [L315] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L191] tmp = isHighWaterLevel() [L193] COND TRUE \read(tmp) [L220] int tmp ; [L245] int retValue_acc ; [L88] int retValue_acc ; [L91] retValue_acc = methaneLevelCritical [L92] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L249] retValue_acc = isMethaneLevelCritical() [L251] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L224] tmp = isMethaneAlarm() [L226] COND FALSE !(\read(tmp)) [L214] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L413] int tmp ; [L414] int tmp___0 ; [L88] int retValue_acc ; [L91] retValue_acc = methaneLevelCritical [L92] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L418] tmp = isMethaneLevelCritical() [L420] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L346] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L348] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L354] tmp = __VERIFIER_nondet_int() [L356] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L364] tmp___0 = __VERIFIER_nondet_int() [L366] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L79] COND FALSE !(\read(methaneLevelCritical)) [L82] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L374] tmp___2 = __VERIFIER_nondet_int() [L376] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L157] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L55] COND TRUE waterLevel > 0 [L56] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L164] COND TRUE \read(systemActive) [L186] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L189] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L413] int tmp ; [L414] int tmp___0 ; [L88] int retValue_acc ; [L91] retValue_acc = methaneLevelCritical [L92] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L418] tmp = isMethaneLevelCritical() [L420] COND TRUE \read(tmp) [L256] int retValue_acc ; [L259] retValue_acc = pumpRunning [L260] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L422] tmp___0 = isPumpRunning() [L424] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L3] __assert_fail("0", "minepump_spec1_product43.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 92 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.9s, OverallIterations: 11, TraceHistogramMax: 2, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 823 SDtfs, 1025 SDslu, 1353 SDs, 0 SdLazy, 173 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=318occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 1212 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 311 NumberOfCodeBlocks, 311 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 252 ConstructedInterpolants, 0 QuantifiedInterpolants, 12770 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...