./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product36.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_3ee16518-c369-41ac-927b-7b041790d75b/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_3ee16518-c369-41ac-927b-7b041790d75b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3ee16518-c369-41ac-927b-7b041790d75b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3ee16518-c369-41ac-927b-7b041790d75b/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product36.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3ee16518-c369-41ac-927b-7b041790d75b/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3ee16518-c369-41ac-927b-7b041790d75b/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 99c00eceebadc8c15e4601def9bb17816540a0dc ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 03:19:01,760 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:19:01,768 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:19:01,845 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:19:01,846 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:19:01,853 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:19:01,858 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:19:01,867 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:19:01,871 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:19:01,874 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:19:01,876 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:19:01,880 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:19:01,881 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:19:01,891 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:19:01,893 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:19:01,896 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:19:01,899 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:19:01,902 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:19:01,907 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:19:01,914 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:19:01,922 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:19:01,925 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:19:01,926 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:19:01,929 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:19:01,934 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:19:01,935 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:19:01,935 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:19:01,937 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:19:01,938 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:19:01,939 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:19:01,939 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:19:01,940 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:19:01,941 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:19:01,942 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:19:01,943 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:19:01,944 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:19:01,944 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:19:01,944 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:19:01,945 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:19:01,946 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:19:01,947 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:19:01,948 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3ee16518-c369-41ac-927b-7b041790d75b/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:19:01,977 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:19:01,977 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:19:01,978 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:19:01,979 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:19:01,979 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:19:01,979 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:19:01,980 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:19:01,980 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:19:01,980 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:19:01,980 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:19:01,981 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:19:01,981 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:19:01,981 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:19:01,981 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:19:01,982 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:19:01,982 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:19:01,982 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:19:01,982 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:19:01,983 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:19:01,983 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:19:01,983 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:19:01,983 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:19:01,984 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:19:01,984 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:19:01,984 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:19:01,984 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:19:01,985 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:19:01,985 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:19:01,985 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:19:01,985 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_3ee16518-c369-41ac-927b-7b041790d75b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_3ee16518-c369-41ac-927b-7b041790d75b/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 99c00eceebadc8c15e4601def9bb17816540a0dc [2020-11-28 03:19:02,294 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:19:02,320 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:19:02,324 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:19:02,325 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:19:02,332 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:19:02,333 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3ee16518-c369-41ac-927b-7b041790d75b/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product36.cil.c [2020-11-28 03:19:02,424 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3ee16518-c369-41ac-927b-7b041790d75b/bin/uautomizer/data/d9d49fdec/5e7b3b4618db4216aee5402d8b246d86/FLAGec58915db [2020-11-28 03:19:03,078 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:19:03,079 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3ee16518-c369-41ac-927b-7b041790d75b/sv-benchmarks/c/product-lines/minepump_spec3_product36.cil.c [2020-11-28 03:19:03,096 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3ee16518-c369-41ac-927b-7b041790d75b/bin/uautomizer/data/d9d49fdec/5e7b3b4618db4216aee5402d8b246d86/FLAGec58915db [2020-11-28 03:19:03,380 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3ee16518-c369-41ac-927b-7b041790d75b/bin/uautomizer/data/d9d49fdec/5e7b3b4618db4216aee5402d8b246d86 [2020-11-28 03:19:03,386 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:19:03,388 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:19:03,390 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:19:03,391 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:19:03,394 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:19:03,395 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:19:03" (1/1) ... [2020-11-28 03:19:03,398 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a469dd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:03, skipping insertion in model container [2020-11-28 03:19:03,398 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:19:03" (1/1) ... [2020-11-28 03:19:03,408 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:19:03,462 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:19:03,893 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:19:03,919 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:19:04,063 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:19:04,105 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:19:04,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:04 WrapperNode [2020-11-28 03:19:04,106 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:19:04,107 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:19:04,107 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:19:04,107 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:19:04,119 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:04" (1/1) ... [2020-11-28 03:19:04,141 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:04" (1/1) ... [2020-11-28 03:19:04,196 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:19:04,197 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:19:04,198 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:19:04,198 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:19:04,207 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:04" (1/1) ... [2020-11-28 03:19:04,208 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:04" (1/1) ... [2020-11-28 03:19:04,214 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:04" (1/1) ... [2020-11-28 03:19:04,214 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:04" (1/1) ... [2020-11-28 03:19:04,231 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:04" (1/1) ... [2020-11-28 03:19:04,241 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:04" (1/1) ... [2020-11-28 03:19:04,245 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:04" (1/1) ... [2020-11-28 03:19:04,267 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:19:04,268 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:19:04,268 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:19:04,268 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:19:04,269 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3ee16518-c369-41ac-927b-7b041790d75b/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 03:19:04,400 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:19:04,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:19:04,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:19:04,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:19:05,612 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:19:05,612 INFO L298 CfgBuilder]: Removed 114 assume(true) statements. [2020-11-28 03:19:05,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:19:05 BoogieIcfgContainer [2020-11-28 03:19:05,617 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:19:05,621 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:19:05,622 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:19:05,626 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:19:05,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:19:03" (1/3) ... [2020-11-28 03:19:05,627 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4db3d9d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:19:05, skipping insertion in model container [2020-11-28 03:19:05,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:04" (2/3) ... [2020-11-28 03:19:05,628 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4db3d9d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:19:05, skipping insertion in model container [2020-11-28 03:19:05,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:19:05" (3/3) ... [2020-11-28 03:19:05,630 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product36.cil.c [2020-11-28 03:19:05,647 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:19:05,652 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-28 03:19:05,666 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-28 03:19:05,695 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:19:05,695 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:19:05,695 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:19:05,695 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:19:05,695 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:19:05,696 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:19:05,696 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:19:05,696 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:19:05,712 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states. [2020-11-28 03:19:05,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-28 03:19:05,719 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:19:05,720 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 03:19:05,720 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:19:05,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:05,727 INFO L82 PathProgramCache]: Analyzing trace with hash 1884756375, now seen corresponding path program 1 times [2020-11-28 03:19:05,737 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:05,738 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607630064] [2020-11-28 03:19:05,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:05,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:06,110 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 03:19:06,111 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607630064] [2020-11-28 03:19:06,112 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:19:06,112 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:19:06,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143947384] [2020-11-28 03:19:06,118 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 03:19:06,119 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:19:06,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 03:19:06,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:19:06,137 INFO L87 Difference]: Start difference. First operand 89 states. Second operand 2 states. [2020-11-28 03:19:06,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:19:06,171 INFO L93 Difference]: Finished difference Result 169 states and 254 transitions. [2020-11-28 03:19:06,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 03:19:06,173 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-11-28 03:19:06,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:19:06,185 INFO L225 Difference]: With dead ends: 169 [2020-11-28 03:19:06,188 INFO L226 Difference]: Without dead ends: 82 [2020-11-28 03:19:06,203 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 03:19:06,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-11-28 03:19:06,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2020-11-28 03:19:06,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-11-28 03:19:06,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 117 transitions. [2020-11-28 03:19:06,271 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 117 transitions. Word has length 18 [2020-11-28 03:19:06,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:19:06,271 INFO L481 AbstractCegarLoop]: Abstraction has 82 states and 117 transitions. [2020-11-28 03:19:06,272 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 03:19:06,273 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 117 transitions. [2020-11-28 03:19:06,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-28 03:19:06,274 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:19:06,274 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 03:19:06,275 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:19:06,276 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:19:06,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:06,279 INFO L82 PathProgramCache]: Analyzing trace with hash -434316730, now seen corresponding path program 1 times [2020-11-28 03:19:06,280 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:06,280 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495473262] [2020-11-28 03:19:06,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:06,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:06,477 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 03:19:06,477 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495473262] [2020-11-28 03:19:06,478 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:19:06,478 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:19:06,478 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305699726] [2020-11-28 03:19:06,479 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:19:06,480 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:19:06,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:19:06,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:19:06,481 INFO L87 Difference]: Start difference. First operand 82 states and 117 transitions. Second operand 3 states. [2020-11-28 03:19:06,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:19:06,508 INFO L93 Difference]: Finished difference Result 82 states and 117 transitions. [2020-11-28 03:19:06,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:19:06,509 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-11-28 03:19:06,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:19:06,513 INFO L225 Difference]: With dead ends: 82 [2020-11-28 03:19:06,515 INFO L226 Difference]: Without dead ends: 38 [2020-11-28 03:19:06,516 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 03:19:06,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-11-28 03:19:06,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-11-28 03:19:06,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-11-28 03:19:06,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 54 transitions. [2020-11-28 03:19:06,527 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 54 transitions. Word has length 19 [2020-11-28 03:19:06,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:19:06,529 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 54 transitions. [2020-11-28 03:19:06,529 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:19:06,530 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 54 transitions. [2020-11-28 03:19:06,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-28 03:19:06,533 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:19:06,533 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 03:19:06,534 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:19:06,534 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:19:06,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:06,535 INFO L82 PathProgramCache]: Analyzing trace with hash 2067739700, now seen corresponding path program 1 times [2020-11-28 03:19:06,536 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:06,537 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48060356] [2020-11-28 03:19:06,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:06,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:06,675 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 03:19:06,676 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48060356] [2020-11-28 03:19:06,676 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:19:06,676 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:19:06,676 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306611874] [2020-11-28 03:19:06,677 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:19:06,677 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:19:06,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:19:06,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:19:06,678 INFO L87 Difference]: Start difference. First operand 38 states and 54 transitions. Second operand 5 states. [2020-11-28 03:19:06,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:19:06,772 INFO L93 Difference]: Finished difference Result 95 states and 139 transitions. [2020-11-28 03:19:06,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:19:06,773 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-11-28 03:19:06,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:19:06,775 INFO L225 Difference]: With dead ends: 95 [2020-11-28 03:19:06,775 INFO L226 Difference]: Without dead ends: 63 [2020-11-28 03:19:06,776 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 03:19:06,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-11-28 03:19:06,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 59. [2020-11-28 03:19:06,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-11-28 03:19:06,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 86 transitions. [2020-11-28 03:19:06,791 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 86 transitions. Word has length 24 [2020-11-28 03:19:06,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:19:06,792 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 86 transitions. [2020-11-28 03:19:06,792 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:19:06,792 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 86 transitions. [2020-11-28 03:19:06,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-28 03:19:06,793 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:19:06,794 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 03:19:06,794 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 03:19:06,794 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:19:06,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:06,795 INFO L82 PathProgramCache]: Analyzing trace with hash -1859072455, now seen corresponding path program 1 times [2020-11-28 03:19:06,795 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:06,795 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868721933] [2020-11-28 03:19:06,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:06,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:06,915 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 03:19:06,915 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868721933] [2020-11-28 03:19:06,915 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:19:06,915 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:19:06,916 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120643396] [2020-11-28 03:19:06,916 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:19:06,916 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:19:06,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:19:06,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:19:06,918 INFO L87 Difference]: Start difference. First operand 59 states and 86 transitions. Second operand 3 states. [2020-11-28 03:19:06,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:19:06,978 INFO L93 Difference]: Finished difference Result 135 states and 199 transitions. [2020-11-28 03:19:06,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:19:06,979 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-11-28 03:19:06,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:19:06,980 INFO L225 Difference]: With dead ends: 135 [2020-11-28 03:19:06,980 INFO L226 Difference]: Without dead ends: 82 [2020-11-28 03:19:06,981 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 03:19:06,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-11-28 03:19:07,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 80. [2020-11-28 03:19:07,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-11-28 03:19:07,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 114 transitions. [2020-11-28 03:19:07,005 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 114 transitions. Word has length 25 [2020-11-28 03:19:07,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:19:07,006 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 114 transitions. [2020-11-28 03:19:07,006 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:19:07,006 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 114 transitions. [2020-11-28 03:19:07,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-28 03:19:07,011 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:19:07,011 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:19:07,012 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 03:19:07,012 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:19:07,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:07,013 INFO L82 PathProgramCache]: Analyzing trace with hash 1504399113, now seen corresponding path program 1 times [2020-11-28 03:19:07,013 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:07,014 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060841216] [2020-11-28 03:19:07,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:07,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:07,137 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 03:19:07,137 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060841216] [2020-11-28 03:19:07,138 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:19:07,138 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:19:07,138 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273158881] [2020-11-28 03:19:07,139 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:19:07,139 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:19:07,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:19:07,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:19:07,140 INFO L87 Difference]: Start difference. First operand 80 states and 114 transitions. Second operand 5 states. [2020-11-28 03:19:07,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:19:07,508 INFO L93 Difference]: Finished difference Result 427 states and 628 transitions. [2020-11-28 03:19:07,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 03:19:07,509 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-11-28 03:19:07,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:19:07,514 INFO L225 Difference]: With dead ends: 427 [2020-11-28 03:19:07,514 INFO L226 Difference]: Without dead ends: 353 [2020-11-28 03:19:07,516 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 03:19:07,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2020-11-28 03:19:07,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 144. [2020-11-28 03:19:07,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-11-28 03:19:07,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 201 transitions. [2020-11-28 03:19:07,576 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 201 transitions. Word has length 27 [2020-11-28 03:19:07,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:19:07,577 INFO L481 AbstractCegarLoop]: Abstraction has 144 states and 201 transitions. [2020-11-28 03:19:07,577 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:19:07,577 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 201 transitions. [2020-11-28 03:19:07,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-28 03:19:07,584 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:19:07,584 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:19:07,585 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 03:19:07,585 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:19:07,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:07,586 INFO L82 PathProgramCache]: Analyzing trace with hash -195864629, now seen corresponding path program 1 times [2020-11-28 03:19:07,586 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:07,587 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425208254] [2020-11-28 03:19:07,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:07,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:19:07,711 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:19:07,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:19:07,794 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:19:07,872 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:19:07,873 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:19:07,873 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-28 03:19:08,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:19:08 BoogieIcfgContainer [2020-11-28 03:19:08,041 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:19:08,041 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:19:08,042 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:19:08,042 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:19:08,042 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:19:05" (3/4) ... [2020-11-28 03:19:08,045 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 03:19:08,195 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_3ee16518-c369-41ac-927b-7b041790d75b/bin/uautomizer/witness.graphml [2020-11-28 03:19:08,195 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:19:08,200 INFO L168 Benchmark]: Toolchain (without parser) took 4808.05 ms. Allocated memory was 107.0 MB in the beginning and 157.3 MB in the end (delta: 50.3 MB). Free memory was 79.0 MB in the beginning and 128.8 MB in the end (delta: -49.8 MB). Peak memory consumption was 65.9 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:08,201 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 107.0 MB. Free memory is still 66.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:19:08,202 INFO L168 Benchmark]: CACSL2BoogieTranslator took 715.62 ms. Allocated memory is still 107.0 MB. Free memory was 78.8 MB in the beginning and 72.5 MB in the end (delta: 6.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:08,203 INFO L168 Benchmark]: Boogie Procedure Inliner took 89.72 ms. Allocated memory is still 107.0 MB. Free memory was 72.5 MB in the beginning and 69.4 MB in the end (delta: 3.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:19:08,204 INFO L168 Benchmark]: Boogie Preprocessor took 69.35 ms. Allocated memory is still 107.0 MB. Free memory was 69.4 MB in the beginning and 67.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:08,204 INFO L168 Benchmark]: RCFGBuilder took 1349.65 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 67.0 MB in the beginning and 69.2 MB in the end (delta: -2.2 MB). Peak memory consumption was 26.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:08,205 INFO L168 Benchmark]: TraceAbstraction took 2420.01 ms. Allocated memory is still 130.0 MB. Free memory was 69.2 MB in the beginning and 47.9 MB in the end (delta: 21.3 MB). Peak memory consumption was 19.9 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:08,206 INFO L168 Benchmark]: Witness Printer took 153.59 ms. Allocated memory was 130.0 MB in the beginning and 157.3 MB in the end (delta: 27.3 MB). Free memory was 47.9 MB in the beginning and 128.8 MB in the end (delta: -80.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:08,212 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 107.0 MB. Free memory is still 66.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 715.62 ms. Allocated memory is still 107.0 MB. Free memory was 78.8 MB in the beginning and 72.5 MB in the end (delta: 6.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 89.72 ms. Allocated memory is still 107.0 MB. Free memory was 72.5 MB in the beginning and 69.4 MB in the end (delta: 3.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 69.35 ms. Allocated memory is still 107.0 MB. Free memory was 69.4 MB in the beginning and 67.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1349.65 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 67.0 MB in the beginning and 69.2 MB in the end (delta: -2.2 MB). Peak memory consumption was 26.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2420.01 ms. Allocated memory is still 130.0 MB. Free memory was 69.2 MB in the beginning and 47.9 MB in the end (delta: 21.3 MB). Peak memory consumption was 19.9 MB. Max. memory is 16.1 GB. * Witness Printer took 153.59 ms. Allocated memory was 130.0 MB in the beginning and 157.3 MB in the end (delta: 27.3 MB). Free memory was 47.9 MB in the beginning and 128.8 MB in the end (delta: -80.9 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: [L220] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L428] int pumpRunning = 0; [L429] int systemActive = 1; [L677] int waterLevel = 1; [L678] int methaneLevelCritical = 0; [L771] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L847] int retValue_acc ; [L848] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L896] int retValue_acc ; [L899] retValue_acc = 1 [L900] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L854] tmp = valid_product() [L856] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L608] int splverifierCounter ; [L609] int tmp ; [L610] int tmp___0 ; [L611] int tmp___1 ; [L612] int tmp___2 ; [L615] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L617] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L619] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L625] tmp = __VERIFIER_nondet_int() [L627] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L695] COND TRUE waterLevel < 2 [L696] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L635] tmp___0 = __VERIFIER_nondet_int() [L637] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L645] tmp___2 = __VERIFIER_nondet_int() [L647] COND FALSE !(\read(tmp___2)) [L653] tmp___1 = __VERIFIER_nondet_int() [L655] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L584] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L591] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L436] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L443] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L906] int tmp ; [L907] int tmp___0 ; [L908] int tmp___1 ; [L716] int retValue_acc ; [L719] retValue_acc = methaneLevelCritical [L720] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L912] tmp = isMethaneLevelCritical() [L914] COND FALSE !(\read(tmp)) [L748] int retValue_acc ; [L751] retValue_acc = waterLevel [L752] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L918] tmp___0 = getWaterLevel() [L920] COND TRUE tmp___0 == 2 [L517] int retValue_acc ; [L520] retValue_acc = pumpRunning [L521] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L922] tmp___1 = isPumpRunning() [L924] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L3] __assert_fail("0", "minepump_spec3_product36.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 89 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.1s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 361 SDtfs, 522 SDslu, 281 SDs, 0 SdLazy, 58 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=144occurred in iteration=5, 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, 5 MinimizatonAttempts, 215 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 141 NumberOfCodeBlocks, 141 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 108 ConstructedInterpolants, 0 QuantifiedInterpolants, 4660 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...