./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product34.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_3d89b0f6-d9c8-4092-b09c-54a5a77c2c7c/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_3d89b0f6-d9c8-4092-b09c-54a5a77c2c7c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3d89b0f6-d9c8-4092-b09c-54a5a77c2c7c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3d89b0f6-d9c8-4092-b09c-54a5a77c2c7c/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product34.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3d89b0f6-d9c8-4092-b09c-54a5a77c2c7c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3d89b0f6-d9c8-4092-b09c-54a5a77c2c7c/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 2eef58443d1776324fbe6fef82cb6eff424772d8 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 03:20:52,839 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:20:52,861 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:20:52,913 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:20:52,913 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:20:52,915 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:20:52,917 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:20:52,919 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:20:52,922 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:20:52,923 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:20:52,924 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:20:52,926 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:20:52,926 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:20:52,928 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:20:52,929 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:20:52,931 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:20:52,932 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:20:52,933 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:20:52,935 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:20:52,938 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:20:52,940 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:20:52,942 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:20:52,944 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:20:52,945 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:20:52,949 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:20:52,949 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:20:52,949 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:20:52,951 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:20:52,951 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:20:52,953 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:20:52,953 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:20:52,954 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:20:52,955 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:20:52,956 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:20:52,957 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:20:52,958 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:20:52,959 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:20:52,959 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:20:52,959 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:20:52,961 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:20:52,961 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:20:52,962 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3d89b0f6-d9c8-4092-b09c-54a5a77c2c7c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:20:52,988 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:20:52,988 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:20:52,990 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:20:52,990 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:20:52,990 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:20:52,990 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:20:52,991 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:20:52,991 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:20:52,991 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:20:52,991 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:20:52,991 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:20:52,992 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:20:52,992 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:20:52,992 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:20:52,992 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:20:52,992 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:20:52,993 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:20:52,993 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:20:52,993 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:20:52,993 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:20:52,993 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:20:52,994 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:20:52,994 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:20:52,994 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:20:52,994 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:20:52,994 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:20:52,995 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:20:52,995 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:20:52,995 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:20:52,995 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_3d89b0f6-d9c8-4092-b09c-54a5a77c2c7c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_3d89b0f6-d9c8-4092-b09c-54a5a77c2c7c/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2eef58443d1776324fbe6fef82cb6eff424772d8 [2020-11-28 03:20:53,276 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:20:53,306 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:20:53,309 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:20:53,310 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:20:53,312 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:20:53,313 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3d89b0f6-d9c8-4092-b09c-54a5a77c2c7c/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec2_product34.cil.c [2020-11-28 03:20:53,411 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3d89b0f6-d9c8-4092-b09c-54a5a77c2c7c/bin/uautomizer/data/270e308f6/db90079f83784defab304a079258a442/FLAGe73eac79e [2020-11-28 03:20:53,907 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:20:53,907 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3d89b0f6-d9c8-4092-b09c-54a5a77c2c7c/sv-benchmarks/c/product-lines/minepump_spec2_product34.cil.c [2020-11-28 03:20:53,920 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3d89b0f6-d9c8-4092-b09c-54a5a77c2c7c/bin/uautomizer/data/270e308f6/db90079f83784defab304a079258a442/FLAGe73eac79e [2020-11-28 03:20:54,246 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3d89b0f6-d9c8-4092-b09c-54a5a77c2c7c/bin/uautomizer/data/270e308f6/db90079f83784defab304a079258a442 [2020-11-28 03:20:54,249 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:20:54,251 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:20:54,254 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:20:54,254 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:20:54,257 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:20:54,258 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:20:54" (1/1) ... [2020-11-28 03:20:54,260 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62bcf1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:54, skipping insertion in model container [2020-11-28 03:20:54,260 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:20:54" (1/1) ... [2020-11-28 03:20:54,267 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:20:54,307 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:20:54,694 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:20:54,704 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:20:54,812 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:20:54,847 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:20:54,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:54 WrapperNode [2020-11-28 03:20:54,848 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:20:54,849 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:20:54,850 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:20:54,850 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:20:54,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:54" (1/1) ... [2020-11-28 03:20:54,875 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:54" (1/1) ... [2020-11-28 03:20:54,919 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:20:54,920 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:20:54,922 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:20:54,922 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:20:54,932 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:54" (1/1) ... [2020-11-28 03:20:54,932 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:54" (1/1) ... [2020-11-28 03:20:54,945 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:54" (1/1) ... [2020-11-28 03:20:54,952 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:54" (1/1) ... [2020-11-28 03:20:54,968 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:54" (1/1) ... [2020-11-28 03:20:54,977 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:54" (1/1) ... [2020-11-28 03:20:54,980 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:54" (1/1) ... [2020-11-28 03:20:54,984 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:20:54,985 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:20:54,986 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:20:54,986 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:20:54,987 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3d89b0f6-d9c8-4092-b09c-54a5a77c2c7c/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 03:20:55,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:20:55,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:20:55,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:20:55,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:20:56,019 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:20:56,020 INFO L298 CfgBuilder]: Removed 106 assume(true) statements. [2020-11-28 03:20:56,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:20:56 BoogieIcfgContainer [2020-11-28 03:20:56,022 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:20:56,023 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:20:56,023 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:20:56,027 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:20:56,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:20:54" (1/3) ... [2020-11-28 03:20:56,028 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d9c8ff1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:20:56, skipping insertion in model container [2020-11-28 03:20:56,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:54" (2/3) ... [2020-11-28 03:20:56,029 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d9c8ff1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:20:56, skipping insertion in model container [2020-11-28 03:20:56,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:20:56" (3/3) ... [2020-11-28 03:20:56,031 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product34.cil.c [2020-11-28 03:20:56,041 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:20:56,046 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-28 03:20:56,058 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-28 03:20:56,083 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:20:56,083 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:20:56,083 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:20:56,083 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:20:56,084 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:20:56,084 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:20:56,084 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:20:56,084 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:20:56,099 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states. [2020-11-28 03:20:56,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-28 03:20:56,105 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:20:56,106 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 03:20:56,107 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:20:56,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:56,112 INFO L82 PathProgramCache]: Analyzing trace with hash 1151090980, now seen corresponding path program 1 times [2020-11-28 03:20:56,121 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:56,122 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237466907] [2020-11-28 03:20:56,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:56,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:56,378 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 03:20:56,379 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237466907] [2020-11-28 03:20:56,380 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:20:56,380 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:20:56,381 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061608441] [2020-11-28 03:20:56,385 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 03:20:56,385 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:20:56,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 03:20:56,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:20:56,401 INFO L87 Difference]: Start difference. First operand 85 states. Second operand 2 states. [2020-11-28 03:20:56,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:20:56,428 INFO L93 Difference]: Finished difference Result 160 states and 243 transitions. [2020-11-28 03:20:56,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 03:20:56,429 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-11-28 03:20:56,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:20:56,440 INFO L225 Difference]: With dead ends: 160 [2020-11-28 03:20:56,440 INFO L226 Difference]: Without dead ends: 78 [2020-11-28 03:20:56,443 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 03:20:56,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-11-28 03:20:56,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2020-11-28 03:20:56,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-11-28 03:20:56,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 112 transitions. [2020-11-28 03:20:56,484 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 112 transitions. Word has length 18 [2020-11-28 03:20:56,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:20:56,484 INFO L481 AbstractCegarLoop]: Abstraction has 78 states and 112 transitions. [2020-11-28 03:20:56,485 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 03:20:56,485 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 112 transitions. [2020-11-28 03:20:56,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-28 03:20:56,486 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:20:56,486 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 03:20:56,487 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:20:56,487 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:20:56,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:56,488 INFO L82 PathProgramCache]: Analyzing trace with hash 932255011, now seen corresponding path program 1 times [2020-11-28 03:20:56,488 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:56,489 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823590536] [2020-11-28 03:20:56,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:56,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:56,596 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 03:20:56,596 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823590536] [2020-11-28 03:20:56,596 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:20:56,596 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:20:56,597 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080131085] [2020-11-28 03:20:56,598 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:20:56,598 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:20:56,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:20:56,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:20:56,600 INFO L87 Difference]: Start difference. First operand 78 states and 112 transitions. Second operand 3 states. [2020-11-28 03:20:56,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:20:56,612 INFO L93 Difference]: Finished difference Result 78 states and 112 transitions. [2020-11-28 03:20:56,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:20:56,612 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-11-28 03:20:56,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:20:56,613 INFO L225 Difference]: With dead ends: 78 [2020-11-28 03:20:56,614 INFO L226 Difference]: Without dead ends: 36 [2020-11-28 03:20:56,615 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 03:20:56,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-11-28 03:20:56,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-11-28 03:20:56,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-11-28 03:20:56,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 51 transitions. [2020-11-28 03:20:56,621 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 51 transitions. Word has length 19 [2020-11-28 03:20:56,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:20:56,621 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 51 transitions. [2020-11-28 03:20:56,621 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:20:56,622 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 51 transitions. [2020-11-28 03:20:56,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-28 03:20:56,623 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:20:56,623 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 03:20:56,623 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:20:56,623 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:20:56,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:56,624 INFO L82 PathProgramCache]: Analyzing trace with hash -301457865, now seen corresponding path program 1 times [2020-11-28 03:20:56,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:56,625 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320622475] [2020-11-28 03:20:56,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:56,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:56,761 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 03:20:56,761 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320622475] [2020-11-28 03:20:56,761 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:20:56,761 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:20:56,762 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640081363] [2020-11-28 03:20:56,762 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:20:56,762 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:20:56,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:20:56,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:20:56,763 INFO L87 Difference]: Start difference. First operand 36 states and 51 transitions. Second operand 3 states. [2020-11-28 03:20:56,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:20:56,795 INFO L93 Difference]: Finished difference Result 65 states and 95 transitions. [2020-11-28 03:20:56,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:20:56,798 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-11-28 03:20:56,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:20:56,799 INFO L225 Difference]: With dead ends: 65 [2020-11-28 03:20:56,799 INFO L226 Difference]: Without dead ends: 36 [2020-11-28 03:20:56,800 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 03:20:56,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-11-28 03:20:56,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-11-28 03:20:56,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-11-28 03:20:56,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 50 transitions. [2020-11-28 03:20:56,810 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 50 transitions. Word has length 24 [2020-11-28 03:20:56,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:20:56,810 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 50 transitions. [2020-11-28 03:20:56,810 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:20:56,811 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 50 transitions. [2020-11-28 03:20:56,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-28 03:20:56,813 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:20:56,813 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 03:20:56,813 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 03:20:56,814 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:20:56,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:56,816 INFO L82 PathProgramCache]: Analyzing trace with hash -608954119, now seen corresponding path program 1 times [2020-11-28 03:20:56,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:56,816 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176705147] [2020-11-28 03:20:56,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:56,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:56,913 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 03:20:56,913 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176705147] [2020-11-28 03:20:56,914 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:20:56,914 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:20:56,914 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759114603] [2020-11-28 03:20:56,914 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:20:56,914 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:20:56,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:20:56,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:20:56,915 INFO L87 Difference]: Start difference. First operand 36 states and 50 transitions. Second operand 3 states. [2020-11-28 03:20:56,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:20:56,951 INFO L93 Difference]: Finished difference Result 87 states and 125 transitions. [2020-11-28 03:20:56,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:20:56,951 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-11-28 03:20:56,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:20:56,952 INFO L225 Difference]: With dead ends: 87 [2020-11-28 03:20:56,952 INFO L226 Difference]: Without dead ends: 58 [2020-11-28 03:20:56,953 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 03:20:56,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-11-28 03:20:56,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 56. [2020-11-28 03:20:56,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-11-28 03:20:56,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 79 transitions. [2020-11-28 03:20:56,961 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 79 transitions. Word has length 25 [2020-11-28 03:20:56,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:20:56,961 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 79 transitions. [2020-11-28 03:20:56,961 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:20:56,961 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 79 transitions. [2020-11-28 03:20:56,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-28 03:20:56,962 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:20:56,963 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:20:56,963 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 03:20:56,963 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:20:56,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:56,964 INFO L82 PathProgramCache]: Analyzing trace with hash -584147931, now seen corresponding path program 1 times [2020-11-28 03:20:56,964 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:56,964 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486148504] [2020-11-28 03:20:56,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:56,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:57,061 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 03:20:57,061 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486148504] [2020-11-28 03:20:57,061 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:20:57,061 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:20:57,062 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127151685] [2020-11-28 03:20:57,062 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:20:57,062 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:20:57,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:20:57,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:20:57,063 INFO L87 Difference]: Start difference. First operand 56 states and 79 transitions. Second operand 5 states. [2020-11-28 03:20:57,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:20:57,163 INFO L93 Difference]: Finished difference Result 254 states and 372 transitions. [2020-11-28 03:20:57,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-28 03:20:57,163 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2020-11-28 03:20:57,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:20:57,165 INFO L225 Difference]: With dead ends: 254 [2020-11-28 03:20:57,165 INFO L226 Difference]: Without dead ends: 205 [2020-11-28 03:20:57,166 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 03:20:57,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-11-28 03:20:57,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 97. [2020-11-28 03:20:57,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-11-28 03:20:57,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 136 transitions. [2020-11-28 03:20:57,184 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 136 transitions. Word has length 31 [2020-11-28 03:20:57,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:20:57,184 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 136 transitions. [2020-11-28 03:20:57,185 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:20:57,185 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 136 transitions. [2020-11-28 03:20:57,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-28 03:20:57,186 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:20:57,186 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:20:57,186 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 03:20:57,186 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:20:57,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:57,187 INFO L82 PathProgramCache]: Analyzing trace with hash 1078415005, now seen corresponding path program 1 times [2020-11-28 03:20:57,187 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:57,187 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68167661] [2020-11-28 03:20:57,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:57,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:57,275 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 03:20:57,275 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68167661] [2020-11-28 03:20:57,275 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:20:57,276 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:20:57,276 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841256562] [2020-11-28 03:20:57,276 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:20:57,276 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:20:57,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:20:57,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:20:57,277 INFO L87 Difference]: Start difference. First operand 97 states and 136 transitions. Second operand 5 states. [2020-11-28 03:20:57,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:20:57,439 INFO L93 Difference]: Finished difference Result 346 states and 493 transitions. [2020-11-28 03:20:57,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-28 03:20:57,440 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2020-11-28 03:20:57,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:20:57,443 INFO L225 Difference]: With dead ends: 346 [2020-11-28 03:20:57,443 INFO L226 Difference]: Without dead ends: 256 [2020-11-28 03:20:57,444 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 03:20:57,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2020-11-28 03:20:57,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 96. [2020-11-28 03:20:57,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-11-28 03:20:57,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 133 transitions. [2020-11-28 03:20:57,478 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 133 transitions. Word has length 32 [2020-11-28 03:20:57,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:20:57,481 INFO L481 AbstractCegarLoop]: Abstraction has 96 states and 133 transitions. [2020-11-28 03:20:57,481 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:20:57,481 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 133 transitions. [2020-11-28 03:20:57,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-28 03:20:57,483 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:20:57,483 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:20:57,484 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-28 03:20:57,484 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:20:57,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:57,486 INFO L82 PathProgramCache]: Analyzing trace with hash 144951296, now seen corresponding path program 1 times [2020-11-28 03:20:57,486 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:57,486 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949477551] [2020-11-28 03:20:57,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:57,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:57,569 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 03:20:57,569 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949477551] [2020-11-28 03:20:57,569 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:20:57,569 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:20:57,570 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654733420] [2020-11-28 03:20:57,570 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:20:57,570 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:20:57,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:20:57,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:20:57,571 INFO L87 Difference]: Start difference. First operand 96 states and 133 transitions. Second operand 5 states. [2020-11-28 03:20:57,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:20:57,621 INFO L93 Difference]: Finished difference Result 245 states and 340 transitions. [2020-11-28 03:20:57,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:20:57,621 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2020-11-28 03:20:57,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:20:57,623 INFO L225 Difference]: With dead ends: 245 [2020-11-28 03:20:57,623 INFO L226 Difference]: Without dead ends: 156 [2020-11-28 03:20:57,624 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 03:20:57,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2020-11-28 03:20:57,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 102. [2020-11-28 03:20:57,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-11-28 03:20:57,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 139 transitions. [2020-11-28 03:20:57,635 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 139 transitions. Word has length 32 [2020-11-28 03:20:57,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:20:57,636 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 139 transitions. [2020-11-28 03:20:57,636 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:20:57,636 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 139 transitions. [2020-11-28 03:20:57,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-28 03:20:57,637 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:20:57,637 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:20:57,638 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-28 03:20:57,638 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:20:57,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:57,639 INFO L82 PathProgramCache]: Analyzing trace with hash 846015874, now seen corresponding path program 1 times [2020-11-28 03:20:57,639 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:57,639 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989278725] [2020-11-28 03:20:57,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:57,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:57,693 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 03:20:57,693 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989278725] [2020-11-28 03:20:57,693 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:20:57,694 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:20:57,694 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979378487] [2020-11-28 03:20:57,694 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:20:57,694 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:20:57,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:20:57,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:20:57,695 INFO L87 Difference]: Start difference. First operand 102 states and 139 transitions. Second operand 5 states. [2020-11-28 03:20:57,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:20:57,768 INFO L93 Difference]: Finished difference Result 279 states and 379 transitions. [2020-11-28 03:20:57,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:20:57,769 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2020-11-28 03:20:57,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:20:57,770 INFO L225 Difference]: With dead ends: 279 [2020-11-28 03:20:57,770 INFO L226 Difference]: Without dead ends: 184 [2020-11-28 03:20:57,771 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:20:57,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2020-11-28 03:20:57,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 106. [2020-11-28 03:20:57,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-11-28 03:20:57,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 143 transitions. [2020-11-28 03:20:57,788 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 143 transitions. Word has length 32 [2020-11-28 03:20:57,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:20:57,788 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 143 transitions. [2020-11-28 03:20:57,788 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:20:57,789 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 143 transitions. [2020-11-28 03:20:57,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-28 03:20:57,796 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:20:57,796 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:20:57,796 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-28 03:20:57,797 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:20:57,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:57,798 INFO L82 PathProgramCache]: Analyzing trace with hash 259209860, now seen corresponding path program 1 times [2020-11-28 03:20:57,798 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:57,799 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108017074] [2020-11-28 03:20:57,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:57,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:57,869 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 03:20:57,869 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108017074] [2020-11-28 03:20:57,870 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:20:57,870 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:20:57,870 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519808649] [2020-11-28 03:20:57,870 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:20:57,870 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:20:57,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:20:57,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:20:57,871 INFO L87 Difference]: Start difference. First operand 106 states and 143 transitions. Second operand 3 states. [2020-11-28 03:20:57,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:20:57,900 INFO L93 Difference]: Finished difference Result 253 states and 341 transitions. [2020-11-28 03:20:57,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:20:57,900 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2020-11-28 03:20:57,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:20:57,902 INFO L225 Difference]: With dead ends: 253 [2020-11-28 03:20:57,902 INFO L226 Difference]: Without dead ends: 154 [2020-11-28 03:20:57,902 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 03:20:57,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-11-28 03:20:57,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2020-11-28 03:20:57,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-11-28 03:20:57,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 201 transitions. [2020-11-28 03:20:57,919 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 201 transitions. Word has length 32 [2020-11-28 03:20:57,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:20:57,919 INFO L481 AbstractCegarLoop]: Abstraction has 154 states and 201 transitions. [2020-11-28 03:20:57,919 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:20:57,919 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 201 transitions. [2020-11-28 03:20:57,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-11-28 03:20:57,920 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:20:57,920 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 03:20:57,921 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-28 03:20:57,921 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:20:57,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:57,922 INFO L82 PathProgramCache]: Analyzing trace with hash -1203693628, now seen corresponding path program 1 times [2020-11-28 03:20:57,922 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:57,922 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501617363] [2020-11-28 03:20:57,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:57,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:57,984 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 03:20:57,985 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501617363] [2020-11-28 03:20:57,985 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:20:57,986 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:20:57,986 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525902212] [2020-11-28 03:20:57,986 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:20:57,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:20:57,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:20:57,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:20:57,987 INFO L87 Difference]: Start difference. First operand 154 states and 201 transitions. Second operand 3 states. [2020-11-28 03:20:58,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:20:58,035 INFO L93 Difference]: Finished difference Result 221 states and 291 transitions. [2020-11-28 03:20:58,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:20:58,039 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2020-11-28 03:20:58,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:20:58,040 INFO L225 Difference]: With dead ends: 221 [2020-11-28 03:20:58,041 INFO L226 Difference]: Without dead ends: 219 [2020-11-28 03:20:58,041 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 03:20:58,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2020-11-28 03:20:58,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 183. [2020-11-28 03:20:58,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2020-11-28 03:20:58,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 244 transitions. [2020-11-28 03:20:58,068 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 244 transitions. Word has length 33 [2020-11-28 03:20:58,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:20:58,069 INFO L481 AbstractCegarLoop]: Abstraction has 183 states and 244 transitions. [2020-11-28 03:20:58,069 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:20:58,069 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 244 transitions. [2020-11-28 03:20:58,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-28 03:20:58,070 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:20:58,070 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:20:58,070 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-28 03:20:58,070 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:20:58,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:58,071 INFO L82 PathProgramCache]: Analyzing trace with hash -1206652458, now seen corresponding path program 1 times [2020-11-28 03:20:58,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:58,071 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010207989] [2020-11-28 03:20:58,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:58,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:20:58,149 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:20:58,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:20:58,217 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:20:58,294 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:20:58,294 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:20:58,294 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-28 03:20:58,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:20:58 BoogieIcfgContainer [2020-11-28 03:20:58,441 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:20:58,441 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:20:58,441 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:20:58,441 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:20:58,442 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:20:56" (3/4) ... [2020-11-28 03:20:58,444 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 03:20:58,627 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_3d89b0f6-d9c8-4092-b09c-54a5a77c2c7c/bin/uautomizer/witness.graphml [2020-11-28 03:20:58,627 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:20:58,629 INFO L168 Benchmark]: Toolchain (without parser) took 4377.72 ms. Allocated memory was 81.8 MB in the beginning and 157.3 MB in the end (delta: 75.5 MB). Free memory was 51.8 MB in the beginning and 120.4 MB in the end (delta: -68.7 MB). Peak memory consumption was 68.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:20:58,630 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 81.8 MB. Free memory was 53.5 MB in the beginning and 53.5 MB in the end (delta: 21.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:20:58,631 INFO L168 Benchmark]: CACSL2BoogieTranslator took 594.98 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 51.5 MB in the beginning and 67.3 MB in the end (delta: -15.8 MB). Peak memory consumption was 10.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:20:58,633 INFO L168 Benchmark]: Boogie Procedure Inliner took 70.07 ms. Allocated memory is still 98.6 MB. Free memory was 67.3 MB in the beginning and 64.4 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:20:58,634 INFO L168 Benchmark]: Boogie Preprocessor took 64.55 ms. Allocated memory is still 98.6 MB. Free memory was 64.4 MB in the beginning and 62.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:20:58,634 INFO L168 Benchmark]: RCFGBuilder took 1036.46 ms. Allocated memory is still 98.6 MB. Free memory was 61.9 MB in the beginning and 61.6 MB in the end (delta: 375.8 kB). Peak memory consumption was 20.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:20:58,635 INFO L168 Benchmark]: TraceAbstraction took 2417.58 ms. Allocated memory was 98.6 MB in the beginning and 130.0 MB in the end (delta: 31.5 MB). Free memory was 61.6 MB in the beginning and 44.8 MB in the end (delta: 16.8 MB). Peak memory consumption was 48.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:20:58,635 INFO L168 Benchmark]: Witness Printer took 186.26 ms. Allocated memory was 130.0 MB in the beginning and 157.3 MB in the end (delta: 27.3 MB). Free memory was 44.8 MB in the beginning and 120.4 MB in the end (delta: -75.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:20:58,637 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 81.8 MB. Free memory was 53.5 MB in the beginning and 53.5 MB in the end (delta: 21.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 594.98 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 51.5 MB in the beginning and 67.3 MB in the end (delta: -15.8 MB). Peak memory consumption was 10.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 70.07 ms. Allocated memory is still 98.6 MB. Free memory was 67.3 MB in the beginning and 64.4 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 64.55 ms. Allocated memory is still 98.6 MB. Free memory was 64.4 MB in the beginning and 62.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1036.46 ms. Allocated memory is still 98.6 MB. Free memory was 61.9 MB in the beginning and 61.6 MB in the end (delta: 375.8 kB). Peak memory consumption was 20.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2417.58 ms. Allocated memory was 98.6 MB in the beginning and 130.0 MB in the end (delta: 31.5 MB). Free memory was 61.6 MB in the beginning and 44.8 MB in the end (delta: 16.8 MB). Peak memory consumption was 48.2 MB. Max. memory is 16.1 GB. * Witness Printer took 186.26 ms. Allocated memory was 130.0 MB in the beginning and 157.3 MB in the end (delta: 27.3 MB). Free memory was 44.8 MB in the beginning and 120.4 MB in the end (delta: -75.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L42] int cleanupTimeShifts = 4; [L153] int waterLevel = 1; [L154] int methaneLevelCritical = 0; [L257] int methAndRunningLastTime ; [L500] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L767] int pumpRunning = 0; [L768] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L125] int retValue_acc ; [L126] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L322] int retValue_acc ; [L325] retValue_acc = 1 [L326] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L132] tmp = valid_product() [L134] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L262] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L699] int splverifierCounter ; [L700] int tmp ; [L701] int tmp___0 ; [L702] int tmp___1 ; [L703] int tmp___2 ; [L706] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L708] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L710] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L716] tmp = __VERIFIER_nondet_int() [L718] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L171] COND TRUE waterLevel < 2 [L172] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L726] tmp___0 = __VERIFIER_nondet_int() [L728] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L183] COND FALSE !(\read(methaneLevelCritical)) [L186] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L736] tmp___2 = __VERIFIER_nondet_int() [L738] COND TRUE \read(tmp___2) [L922] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L774] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L781] COND TRUE \read(systemActive) [L803] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L806] COND TRUE ! pumpRunning [L900] int retValue_acc ; [L901] int tmp ; [L902] int tmp___0 ; [L233] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L236] COND FALSE !(waterLevel < 2) [L240] retValue_acc = 0 [L241] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L906] tmp = isHighWaterSensorDry() [L908] COND FALSE !(\read(tmp)) [L911] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L913] retValue_acc = tmp___0 [L914] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L808] tmp = isHighWaterLevel() [L810] COND TRUE \read(tmp) [L831] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L267] int tmp ; [L268] int tmp___0 ; [L192] int retValue_acc ; [L195] retValue_acc = methaneLevelCritical [L196] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L272] tmp = isMethaneLevelCritical() [L274] COND TRUE \read(tmp) [L855] int retValue_acc ; [L858] retValue_acc = pumpRunning [L859] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L276] tmp___0 = isPumpRunning() [L278] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L279] COND FALSE !(\read(methAndRunningLastTime)) [L284] methAndRunningLastTime = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L708] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L710] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L716] tmp = __VERIFIER_nondet_int() [L718] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L726] tmp___0 = __VERIFIER_nondet_int() [L728] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L736] tmp___2 = __VERIFIER_nondet_int() [L738] COND TRUE \read(tmp___2) [L922] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L774] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L159] COND TRUE waterLevel > 0 [L160] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L781] COND TRUE \read(systemActive) [L803] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L806] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L267] int tmp ; [L268] int tmp___0 ; [L192] int retValue_acc ; [L195] retValue_acc = methaneLevelCritical [L196] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L272] tmp = isMethaneLevelCritical() [L274] COND TRUE \read(tmp) [L855] int retValue_acc ; [L858] retValue_acc = pumpRunning [L859] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L276] tmp___0 = isPumpRunning() [L278] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L279] COND TRUE \read(methAndRunningLastTime) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L3] __assert_fail("0", "minepump_spec2_product34.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 85 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.2s, OverallIterations: 11, TraceHistogramMax: 2, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 648 SDtfs, 728 SDslu, 845 SDs, 0 SdLazy, 107 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=183occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 438 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 329 NumberOfCodeBlocks, 329 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 268 ConstructedInterpolants, 0 QuantifiedInterpolants, 15162 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...