./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product17.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_c15a3942-7ba8-4762-9ad3-7d9bf7357e6c/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_c15a3942-7ba8-4762-9ad3-7d9bf7357e6c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c15a3942-7ba8-4762-9ad3-7d9bf7357e6c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c15a3942-7ba8-4762-9ad3-7d9bf7357e6c/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product17.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c15a3942-7ba8-4762-9ad3-7d9bf7357e6c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c15a3942-7ba8-4762-9ad3-7d9bf7357e6c/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 93fd59a78b989bd327b1ea5bb76e8d96f458ffc8 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 03:01:52,941 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:01:52,948 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:01:53,006 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:01:53,007 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:01:53,009 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:01:53,010 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:01:53,013 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:01:53,015 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:01:53,017 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:01:53,018 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:01:53,020 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:01:53,020 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:01:53,022 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:01:53,023 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:01:53,024 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:01:53,026 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:01:53,027 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:01:53,030 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:01:53,032 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:01:53,035 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:01:53,044 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:01:53,045 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:01:53,052 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:01:53,056 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:01:53,056 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:01:53,062 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:01:53,063 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:01:53,064 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:01:53,065 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:01:53,065 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:01:53,066 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:01:53,069 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:01:53,070 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:01:53,072 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:01:53,072 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:01:53,074 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:01:53,075 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:01:53,075 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:01:53,076 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:01:53,077 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:01:53,078 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c15a3942-7ba8-4762-9ad3-7d9bf7357e6c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:01:53,123 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:01:53,127 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:01:53,129 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:01:53,129 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:01:53,129 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:01:53,130 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:01:53,130 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:01:53,130 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:01:53,130 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:01:53,131 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:01:53,132 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:01:53,132 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:01:53,132 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:01:53,132 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:01:53,133 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:01:53,133 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:01:53,133 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:01:53,133 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:01:53,133 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:01:53,134 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:01:53,134 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:01:53,134 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:01:53,134 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:01:53,135 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:01:53,135 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:01:53,135 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:01:53,135 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:01:53,136 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:01:53,136 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:01:53,136 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_c15a3942-7ba8-4762-9ad3-7d9bf7357e6c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_c15a3942-7ba8-4762-9ad3-7d9bf7357e6c/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 93fd59a78b989bd327b1ea5bb76e8d96f458ffc8 [2020-11-28 03:01:53,425 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:01:53,459 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:01:53,463 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:01:53,465 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:01:53,466 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:01:53,467 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c15a3942-7ba8-4762-9ad3-7d9bf7357e6c/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product17.cil.c [2020-11-28 03:01:53,542 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c15a3942-7ba8-4762-9ad3-7d9bf7357e6c/bin/uautomizer/data/72c980874/161b29a716d94a02a1b1b99f9478bdf9/FLAG02a080df4 [2020-11-28 03:01:54,048 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:01:54,049 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c15a3942-7ba8-4762-9ad3-7d9bf7357e6c/sv-benchmarks/c/product-lines/minepump_spec3_product17.cil.c [2020-11-28 03:01:54,066 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c15a3942-7ba8-4762-9ad3-7d9bf7357e6c/bin/uautomizer/data/72c980874/161b29a716d94a02a1b1b99f9478bdf9/FLAG02a080df4 [2020-11-28 03:01:54,384 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c15a3942-7ba8-4762-9ad3-7d9bf7357e6c/bin/uautomizer/data/72c980874/161b29a716d94a02a1b1b99f9478bdf9 [2020-11-28 03:01:54,386 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:01:54,387 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:01:54,390 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:01:54,390 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:01:54,393 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:01:54,396 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:01:54" (1/1) ... [2020-11-28 03:01:54,398 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e876372 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:54, skipping insertion in model container [2020-11-28 03:01:54,405 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:01:54" (1/1) ... [2020-11-28 03:01:54,412 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:01:54,466 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:01:54,790 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:01:54,800 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:01:54,904 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:01:54,948 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:01:54,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:54 WrapperNode [2020-11-28 03:01:54,950 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:01:54,952 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:01:54,952 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:01:54,953 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:01:54,960 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:54" (1/1) ... [2020-11-28 03:01:54,992 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:54" (1/1) ... [2020-11-28 03:01:55,043 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:01:55,046 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:01:55,046 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:01:55,047 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:01:55,055 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:54" (1/1) ... [2020-11-28 03:01:55,055 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:54" (1/1) ... [2020-11-28 03:01:55,071 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:54" (1/1) ... [2020-11-28 03:01:55,076 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:54" (1/1) ... [2020-11-28 03:01:55,085 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:54" (1/1) ... [2020-11-28 03:01:55,105 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:54" (1/1) ... [2020-11-28 03:01:55,107 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:54" (1/1) ... [2020-11-28 03:01:55,118 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:01:55,119 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:01:55,119 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:01:55,120 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:01:55,122 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c15a3942-7ba8-4762-9ad3-7d9bf7357e6c/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 03:01:55,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:01:55,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:01:55,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:01:55,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:01:56,020 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:01:56,021 INFO L298 CfgBuilder]: Removed 108 assume(true) statements. [2020-11-28 03:01:56,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:01:56 BoogieIcfgContainer [2020-11-28 03:01:56,023 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:01:56,038 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:01:56,040 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:01:56,043 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:01:56,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:01:54" (1/3) ... [2020-11-28 03:01:56,044 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5099f4df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:01:56, skipping insertion in model container [2020-11-28 03:01:56,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:54" (2/3) ... [2020-11-28 03:01:56,045 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5099f4df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:01:56, skipping insertion in model container [2020-11-28 03:01:56,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:01:56" (3/3) ... [2020-11-28 03:01:56,046 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product17.cil.c [2020-11-28 03:01:56,060 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:01:56,064 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-28 03:01:56,076 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-28 03:01:56,108 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:01:56,108 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:01:56,108 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:01:56,108 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:01:56,108 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:01:56,109 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:01:56,109 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:01:56,109 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:01:56,129 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states. [2020-11-28 03:01:56,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-28 03:01:56,136 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:01:56,137 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 03:01:56,137 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:01:56,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:01:56,145 INFO L82 PathProgramCache]: Analyzing trace with hash 444924915, now seen corresponding path program 1 times [2020-11-28 03:01:56,154 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:01:56,154 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862602083] [2020-11-28 03:01:56,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:01:56,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:01:56,375 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 03:01:56,375 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862602083] [2020-11-28 03:01:56,376 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:01:56,376 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:01:56,377 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870435717] [2020-11-28 03:01:56,381 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 03:01:56,382 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:01:56,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 03:01:56,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:01:56,397 INFO L87 Difference]: Start difference. First operand 84 states. Second operand 2 states. [2020-11-28 03:01:56,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:01:56,423 INFO L93 Difference]: Finished difference Result 159 states and 236 transitions. [2020-11-28 03:01:56,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 03:01:56,424 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-11-28 03:01:56,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:01:56,434 INFO L225 Difference]: With dead ends: 159 [2020-11-28 03:01:56,434 INFO L226 Difference]: Without dead ends: 77 [2020-11-28 03:01:56,438 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 03:01:56,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-11-28 03:01:56,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2020-11-28 03:01:56,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-11-28 03:01:56,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 108 transitions. [2020-11-28 03:01:56,477 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 108 transitions. Word has length 18 [2020-11-28 03:01:56,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:01:56,478 INFO L481 AbstractCegarLoop]: Abstraction has 77 states and 108 transitions. [2020-11-28 03:01:56,478 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 03:01:56,478 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 108 transitions. [2020-11-28 03:01:56,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-28 03:01:56,479 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:01:56,480 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 03:01:56,480 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:01:56,480 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:01:56,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:01:56,481 INFO L82 PathProgramCache]: Analyzing trace with hash -466105838, now seen corresponding path program 1 times [2020-11-28 03:01:56,482 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:01:56,482 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570296465] [2020-11-28 03:01:56,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:01:56,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:01:56,607 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 03:01:56,607 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570296465] [2020-11-28 03:01:56,608 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:01:56,608 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:01:56,608 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575647537] [2020-11-28 03:01:56,609 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:01:56,610 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:01:56,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:01:56,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:01:56,611 INFO L87 Difference]: Start difference. First operand 77 states and 108 transitions. Second operand 3 states. [2020-11-28 03:01:56,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:01:56,630 INFO L93 Difference]: Finished difference Result 77 states and 108 transitions. [2020-11-28 03:01:56,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:01:56,631 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-11-28 03:01:56,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:01:56,633 INFO L225 Difference]: With dead ends: 77 [2020-11-28 03:01:56,634 INFO L226 Difference]: Without dead ends: 35 [2020-11-28 03:01:56,635 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 03:01:56,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-11-28 03:01:56,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-11-28 03:01:56,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-11-28 03:01:56,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 49 transitions. [2020-11-28 03:01:56,647 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 49 transitions. Word has length 19 [2020-11-28 03:01:56,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:01:56,647 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 49 transitions. [2020-11-28 03:01:56,647 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:01:56,648 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 49 transitions. [2020-11-28 03:01:56,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-28 03:01:56,651 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:01:56,652 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:01:56,653 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:01:56,653 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:01:56,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:01:56,654 INFO L82 PathProgramCache]: Analyzing trace with hash -163835793, now seen corresponding path program 1 times [2020-11-28 03:01:56,655 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:01:56,656 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819633301] [2020-11-28 03:01:56,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:01:56,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:01:56,846 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 03:01:56,847 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819633301] [2020-11-28 03:01:56,847 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:01:56,847 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:01:56,847 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992778903] [2020-11-28 03:01:56,848 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 03:01:56,848 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:01:56,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 03:01:56,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:01:56,849 INFO L87 Difference]: Start difference. First operand 35 states and 49 transitions. Second operand 6 states. [2020-11-28 03:01:57,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:01:57,012 INFO L93 Difference]: Finished difference Result 64 states and 92 transitions. [2020-11-28 03:01:57,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:01:57,013 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2020-11-28 03:01:57,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:01:57,014 INFO L225 Difference]: With dead ends: 64 [2020-11-28 03:01:57,014 INFO L226 Difference]: Without dead ends: 35 [2020-11-28 03:01:57,015 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:01:57,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-11-28 03:01:57,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-11-28 03:01:57,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-11-28 03:01:57,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 48 transitions. [2020-11-28 03:01:57,023 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 48 transitions. Word has length 24 [2020-11-28 03:01:57,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:01:57,024 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 48 transitions. [2020-11-28 03:01:57,024 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 03:01:57,025 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 48 transitions. [2020-11-28 03:01:57,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-28 03:01:57,027 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:01:57,027 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 03:01:57,027 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 03:01:57,028 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:01:57,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:01:57,028 INFO L82 PathProgramCache]: Analyzing trace with hash 993963754, now seen corresponding path program 1 times [2020-11-28 03:01:57,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:01:57,029 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733016554] [2020-11-28 03:01:57,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:01:57,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:01:57,162 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 03:01:57,162 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733016554] [2020-11-28 03:01:57,162 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:01:57,162 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:01:57,163 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773770305] [2020-11-28 03:01:57,163 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:01:57,163 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:01:57,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:01:57,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:01:57,165 INFO L87 Difference]: Start difference. First operand 35 states and 48 transitions. Second operand 5 states. [2020-11-28 03:01:57,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:01:57,368 INFO L93 Difference]: Finished difference Result 172 states and 255 transitions. [2020-11-28 03:01:57,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 03:01:57,370 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-11-28 03:01:57,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:01:57,372 INFO L225 Difference]: With dead ends: 172 [2020-11-28 03:01:57,372 INFO L226 Difference]: Without dead ends: 143 [2020-11-28 03:01:57,373 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:01:57,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2020-11-28 03:01:57,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 60. [2020-11-28 03:01:57,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-11-28 03:01:57,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 83 transitions. [2020-11-28 03:01:57,395 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 83 transitions. Word has length 25 [2020-11-28 03:01:57,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:01:57,395 INFO L481 AbstractCegarLoop]: Abstraction has 60 states and 83 transitions. [2020-11-28 03:01:57,396 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:01:57,396 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 83 transitions. [2020-11-28 03:01:57,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-28 03:01:57,397 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:01:57,397 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 03:01:57,398 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 03:01:57,398 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:01:57,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:01:57,399 INFO L82 PathProgramCache]: Analyzing trace with hash -965345236, now seen corresponding path program 1 times [2020-11-28 03:01:57,400 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:01:57,400 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343083820] [2020-11-28 03:01:57,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:01:57,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:01:57,501 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:01:57,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:01:57,596 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:01:57,651 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:01:57,652 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:01:57,652 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 03:01:57,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:01:57 BoogieIcfgContainer [2020-11-28 03:01:57,748 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:01:57,748 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:01:57,749 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:01:57,749 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:01:57,749 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:01:56" (3/4) ... [2020-11-28 03:01:57,751 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 03:01:57,826 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c15a3942-7ba8-4762-9ad3-7d9bf7357e6c/bin/uautomizer/witness.graphml [2020-11-28 03:01:57,826 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:01:57,828 INFO L168 Benchmark]: Toolchain (without parser) took 3440.64 ms. Allocated memory was 81.8 MB in the beginning and 119.5 MB in the end (delta: 37.7 MB). Free memory was 42.8 MB in the beginning and 68.4 MB in the end (delta: -25.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:01:57,831 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 81.8 MB. Free memory was 59.8 MB in the beginning and 59.8 MB in the end (delta: 45.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:01:57,831 INFO L168 Benchmark]: CACSL2BoogieTranslator took 560.81 ms. Allocated memory is still 81.8 MB. Free memory was 42.6 MB in the beginning and 48.4 MB in the end (delta: -5.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:01:57,833 INFO L168 Benchmark]: Boogie Procedure Inliner took 93.19 ms. Allocated memory is still 81.8 MB. Free memory was 48.3 MB in the beginning and 45.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:01:57,834 INFO L168 Benchmark]: Boogie Preprocessor took 72.49 ms. Allocated memory is still 81.8 MB. Free memory was 45.2 MB in the beginning and 42.9 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:01:57,834 INFO L168 Benchmark]: RCFGBuilder took 904.13 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 42.9 MB in the beginning and 36.1 MB in the end (delta: 6.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 16.1 GB. [2020-11-28 03:01:57,835 INFO L168 Benchmark]: TraceAbstraction took 1709.39 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 74.9 MB in the beginning and 79.1 MB in the end (delta: -4.3 MB). Peak memory consumption was 47.3 MB. Max. memory is 16.1 GB. [2020-11-28 03:01:57,835 INFO L168 Benchmark]: Witness Printer took 78.20 ms. Allocated memory is still 119.5 MB. Free memory was 79.1 MB in the beginning and 68.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:01:57,838 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 81.8 MB. Free memory was 59.8 MB in the beginning and 59.8 MB in the end (delta: 45.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 560.81 ms. Allocated memory is still 81.8 MB. Free memory was 42.6 MB in the beginning and 48.4 MB in the end (delta: -5.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 93.19 ms. Allocated memory is still 81.8 MB. Free memory was 48.3 MB in the beginning and 45.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 72.49 ms. Allocated memory is still 81.8 MB. Free memory was 45.2 MB in the beginning and 42.9 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 904.13 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 42.9 MB in the beginning and 36.1 MB in the end (delta: 6.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1709.39 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 74.9 MB in the beginning and 79.1 MB in the end (delta: -4.3 MB). Peak memory consumption was 47.3 MB. Max. memory is 16.1 GB. * Witness Printer took 78.20 ms. Allocated memory is still 119.5 MB. Free memory was 79.1 MB in the beginning and 68.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L415] int waterLevel = 1; [L416] int methaneLevelCritical = 0; [L584] int pumpRunning = 0; [L585] int systemActive = 1; [L737] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L813] int retValue_acc ; [L814] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L862] int retValue_acc ; [L865] retValue_acc = 1 [L866] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L820] tmp = valid_product() [L822] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L516] int splverifierCounter ; [L517] int tmp ; [L518] int tmp___0 ; [L519] int tmp___1 ; [L520] int tmp___2 ; [L523] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L525] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L527] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L533] tmp = __VERIFIER_nondet_int() [L535] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L433] COND TRUE waterLevel < 2 [L434] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L543] tmp___0 = __VERIFIER_nondet_int() [L545] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L553] tmp___2 = __VERIFIER_nondet_int() [L555] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L592] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L599] COND TRUE \read(systemActive) [L621] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L624] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L872] int tmp ; [L873] int tmp___0 ; [L874] int tmp___1 ; [L454] int retValue_acc ; [L457] retValue_acc = methaneLevelCritical [L458] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L878] tmp = isMethaneLevelCritical() [L880] COND FALSE !(\read(tmp)) [L486] int retValue_acc ; [L489] retValue_acc = waterLevel [L490] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L884] tmp___0 = getWaterLevel() [L886] COND TRUE tmp___0 == 2 [L673] int retValue_acc ; [L676] retValue_acc = pumpRunning [L677] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L888] tmp___1 = isPumpRunning() [L890] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L3] __assert_fail("0", "minepump_spec3_product17.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 84 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 279 SDtfs, 369 SDslu, 185 SDs, 0 SdLazy, 48 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=84occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 83 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 3741 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...