./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product47.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_a1941766-98d4-4468-8cbf-a549b5c116f6/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_a1941766-98d4-4468-8cbf-a549b5c116f6/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a1941766-98d4-4468-8cbf-a549b5c116f6/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a1941766-98d4-4468-8cbf-a549b5c116f6/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product47.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a1941766-98d4-4468-8cbf-a549b5c116f6/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a1941766-98d4-4468-8cbf-a549b5c116f6/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8425c566d51ac72c4c499354b129f4f120e9c3b0 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 0.1.25-f470102 [2019-12-07 15:55:39,238 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 15:55:39,240 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 15:55:39,247 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 15:55:39,247 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 15:55:39,248 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 15:55:39,249 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 15:55:39,250 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 15:55:39,252 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 15:55:39,252 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 15:55:39,253 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 15:55:39,254 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 15:55:39,254 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 15:55:39,254 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 15:55:39,255 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 15:55:39,256 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 15:55:39,256 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 15:55:39,257 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 15:55:39,258 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 15:55:39,260 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 15:55:39,261 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 15:55:39,261 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 15:55:39,262 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 15:55:39,263 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 15:55:39,264 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 15:55:39,264 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 15:55:39,265 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 15:55:39,265 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 15:55:39,265 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 15:55:39,266 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 15:55:39,266 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 15:55:39,266 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 15:55:39,267 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 15:55:39,267 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 15:55:39,268 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 15:55:39,268 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 15:55:39,268 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 15:55:39,269 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 15:55:39,269 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 15:55:39,269 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 15:55:39,270 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 15:55:39,270 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a1941766-98d4-4468-8cbf-a549b5c116f6/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 15:55:39,279 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 15:55:39,280 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 15:55:39,280 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 15:55:39,280 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 15:55:39,281 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 15:55:39,281 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 15:55:39,281 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 15:55:39,281 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 15:55:39,281 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 15:55:39,281 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 15:55:39,282 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 15:55:39,282 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 15:55:39,282 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 15:55:39,282 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 15:55:39,282 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 15:55:39,282 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 15:55:39,282 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 15:55:39,283 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 15:55:39,283 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 15:55:39,283 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 15:55:39,283 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 15:55:39,283 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 15:55:39,283 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 15:55:39,283 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 15:55:39,284 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 15:55:39,284 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 15:55:39,284 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 15:55:39,284 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 15:55:39,284 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 15:55:39,284 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_a1941766-98d4-4468-8cbf-a549b5c116f6/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(__VERIFIER_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 -> 8425c566d51ac72c4c499354b129f4f120e9c3b0 [2019-12-07 15:55:39,381 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 15:55:39,389 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 15:55:39,391 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 15:55:39,392 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 15:55:39,392 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 15:55:39,392 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a1941766-98d4-4468-8cbf-a549b5c116f6/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product47.cil.c [2019-12-07 15:55:39,430 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a1941766-98d4-4468-8cbf-a549b5c116f6/bin/uautomizer/data/110042261/020cae092abc4623a61d2320b5ec595d/FLAG679f8ef9a [2019-12-07 15:55:39,887 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 15:55:39,887 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a1941766-98d4-4468-8cbf-a549b5c116f6/sv-benchmarks/c/product-lines/minepump_spec3_product47.cil.c [2019-12-07 15:55:39,896 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a1941766-98d4-4468-8cbf-a549b5c116f6/bin/uautomizer/data/110042261/020cae092abc4623a61d2320b5ec595d/FLAG679f8ef9a [2019-12-07 15:55:39,906 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a1941766-98d4-4468-8cbf-a549b5c116f6/bin/uautomizer/data/110042261/020cae092abc4623a61d2320b5ec595d [2019-12-07 15:55:39,908 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 15:55:39,909 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 15:55:39,910 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 15:55:39,910 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 15:55:39,913 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 15:55:39,914 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:55:39" (1/1) ... [2019-12-07 15:55:39,916 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b211215 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:55:39, skipping insertion in model container [2019-12-07 15:55:39,916 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:55:39" (1/1) ... [2019-12-07 15:55:39,921 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 15:55:39,956 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 15:55:40,184 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:55:40,192 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 15:55:40,241 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:55:40,265 INFO L208 MainTranslator]: Completed translation [2019-12-07 15:55:40,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:55:40 WrapperNode [2019-12-07 15:55:40,266 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 15:55:40,266 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 15:55:40,266 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 15:55:40,266 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 15:55:40,271 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:55:40" (1/1) ... [2019-12-07 15:55:40,284 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:55:40" (1/1) ... [2019-12-07 15:55:40,313 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 15:55:40,314 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 15:55:40,314 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 15:55:40,314 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 15:55:40,320 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:55:40" (1/1) ... [2019-12-07 15:55:40,321 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:55:40" (1/1) ... [2019-12-07 15:55:40,325 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:55:40" (1/1) ... [2019-12-07 15:55:40,325 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:55:40" (1/1) ... [2019-12-07 15:55:40,335 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:55:40" (1/1) ... [2019-12-07 15:55:40,341 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:55:40" (1/1) ... [2019-12-07 15:55:40,343 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:55:40" (1/1) ... [2019-12-07 15:55:40,347 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 15:55:40,347 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 15:55:40,348 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 15:55:40,348 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 15:55:40,348 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:55:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a1941766-98d4-4468-8cbf-a549b5c116f6/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 [2019-12-07 15:55:40,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 15:55:40,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-07 15:55:40,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 15:55:40,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 15:55:40,871 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 15:55:40,871 INFO L287 CfgBuilder]: Removed 202 assume(true) statements. [2019-12-07 15:55:40,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:55:40 BoogieIcfgContainer [2019-12-07 15:55:40,872 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 15:55:40,873 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 15:55:40,873 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 15:55:40,875 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 15:55:40,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 03:55:39" (1/3) ... [2019-12-07 15:55:40,876 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b1cc43d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:55:40, skipping insertion in model container [2019-12-07 15:55:40,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:55:40" (2/3) ... [2019-12-07 15:55:40,876 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b1cc43d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:55:40, skipping insertion in model container [2019-12-07 15:55:40,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:55:40" (3/3) ... [2019-12-07 15:55:40,877 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product47.cil.c [2019-12-07 15:55:40,884 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 15:55:40,889 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 15:55:40,896 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 15:55:40,913 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 15:55:40,913 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 15:55:40,913 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 15:55:40,914 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 15:55:40,914 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 15:55:40,914 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 15:55:40,914 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 15:55:40,914 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 15:55:40,927 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states. [2019-12-07 15:55:40,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-07 15:55:40,931 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:55:40,932 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:55:40,932 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:55:40,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:55:40,936 INFO L82 PathProgramCache]: Analyzing trace with hash 301971860, now seen corresponding path program 1 times [2019-12-07 15:55:40,942 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:55:40,942 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158784230] [2019-12-07 15:55:40,942 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:55:41,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:55:41,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:55:41,092 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158784230] [2019-12-07 15:55:41,092 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:55:41,093 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 15:55:41,093 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888272866] [2019-12-07 15:55:41,096 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 15:55:41,096 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 15:55:41,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 15:55:41,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 15:55:41,106 INFO L87 Difference]: Start difference. First operand 137 states. Second operand 2 states. [2019-12-07 15:55:41,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:55:41,129 INFO L93 Difference]: Finished difference Result 268 states and 401 transitions. [2019-12-07 15:55:41,129 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 15:55:41,129 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-12-07 15:55:41,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:55:41,137 INFO L225 Difference]: With dead ends: 268 [2019-12-07 15:55:41,137 INFO L226 Difference]: Without dead ends: 133 [2019-12-07 15:55:41,140 INFO L630 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 [2019-12-07 15:55:41,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2019-12-07 15:55:41,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2019-12-07 15:55:41,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2019-12-07 15:55:41,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 192 transitions. [2019-12-07 15:55:41,171 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 192 transitions. Word has length 18 [2019-12-07 15:55:41,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:55:41,171 INFO L462 AbstractCegarLoop]: Abstraction has 133 states and 192 transitions. [2019-12-07 15:55:41,171 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 15:55:41,171 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 192 transitions. [2019-12-07 15:55:41,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 15:55:41,172 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:55:41,172 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:55:41,172 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:55:41,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:55:41,173 INFO L82 PathProgramCache]: Analyzing trace with hash -609058893, now seen corresponding path program 1 times [2019-12-07 15:55:41,173 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:55:41,173 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180101899] [2019-12-07 15:55:41,173 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:55:41,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:55:41,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:55:41,233 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180101899] [2019-12-07 15:55:41,234 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:55:41,234 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 15:55:41,234 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015069727] [2019-12-07 15:55:41,235 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 15:55:41,235 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 15:55:41,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 15:55:41,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 15:55:41,235 INFO L87 Difference]: Start difference. First operand 133 states and 192 transitions. Second operand 3 states. [2019-12-07 15:55:41,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:55:41,245 INFO L93 Difference]: Finished difference Result 133 states and 192 transitions. [2019-12-07 15:55:41,245 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 15:55:41,245 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-12-07 15:55:41,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:55:41,246 INFO L225 Difference]: With dead ends: 133 [2019-12-07 15:55:41,246 INFO L226 Difference]: Without dead ends: 55 [2019-12-07 15:55:41,247 INFO L630 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 [2019-12-07 15:55:41,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2019-12-07 15:55:41,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2019-12-07 15:55:41,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2019-12-07 15:55:41,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 79 transitions. [2019-12-07 15:55:41,252 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 79 transitions. Word has length 19 [2019-12-07 15:55:41,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:55:41,252 INFO L462 AbstractCegarLoop]: Abstraction has 55 states and 79 transitions. [2019-12-07 15:55:41,252 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 15:55:41,252 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 79 transitions. [2019-12-07 15:55:41,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 15:55:41,253 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:55:41,253 INFO L410 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] [2019-12-07 15:55:41,253 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:55:41,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:55:41,253 INFO L82 PathProgramCache]: Analyzing trace with hash -1636802596, now seen corresponding path program 1 times [2019-12-07 15:55:41,253 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:55:41,253 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156558533] [2019-12-07 15:55:41,253 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:55:41,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:55:41,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:55:41,325 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156558533] [2019-12-07 15:55:41,325 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:55:41,325 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 15:55:41,326 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454429091] [2019-12-07 15:55:41,326 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 15:55:41,326 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 15:55:41,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 15:55:41,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-12-07 15:55:41,327 INFO L87 Difference]: Start difference. First operand 55 states and 79 transitions. Second operand 6 states. [2019-12-07 15:55:41,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:55:41,417 INFO L93 Difference]: Finished difference Result 178 states and 262 transitions. [2019-12-07 15:55:41,418 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 15:55:41,418 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2019-12-07 15:55:41,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:55:41,419 INFO L225 Difference]: With dead ends: 178 [2019-12-07 15:55:41,419 INFO L226 Difference]: Without dead ends: 129 [2019-12-07 15:55:41,420 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-12-07 15:55:41,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2019-12-07 15:55:41,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 76. [2019-12-07 15:55:41,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2019-12-07 15:55:41,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 111 transitions. [2019-12-07 15:55:41,429 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 111 transitions. Word has length 24 [2019-12-07 15:55:41,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:55:41,429 INFO L462 AbstractCegarLoop]: Abstraction has 76 states and 111 transitions. [2019-12-07 15:55:41,429 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 15:55:41,429 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 111 transitions. [2019-12-07 15:55:41,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-12-07 15:55:41,430 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:55:41,430 INFO L410 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] [2019-12-07 15:55:41,430 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:55:41,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:55:41,431 INFO L82 PathProgramCache]: Analyzing trace with hash -1444892134, now seen corresponding path program 1 times [2019-12-07 15:55:41,431 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:55:41,431 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700216772] [2019-12-07 15:55:41,431 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:55:41,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:55:41,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:55:41,463 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700216772] [2019-12-07 15:55:41,463 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:55:41,463 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 15:55:41,463 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747526134] [2019-12-07 15:55:41,463 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 15:55:41,464 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 15:55:41,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 15:55:41,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 15:55:41,464 INFO L87 Difference]: Start difference. First operand 76 states and 111 transitions. Second operand 3 states. [2019-12-07 15:55:41,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:55:41,492 INFO L93 Difference]: Finished difference Result 169 states and 249 transitions. [2019-12-07 15:55:41,492 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 15:55:41,492 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2019-12-07 15:55:41,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:55:41,493 INFO L225 Difference]: With dead ends: 169 [2019-12-07 15:55:41,493 INFO L226 Difference]: Without dead ends: 99 [2019-12-07 15:55:41,494 INFO L630 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 [2019-12-07 15:55:41,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2019-12-07 15:55:41,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 97. [2019-12-07 15:55:41,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2019-12-07 15:55:41,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 138 transitions. [2019-12-07 15:55:41,505 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 138 transitions. Word has length 26 [2019-12-07 15:55:41,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:55:41,506 INFO L462 AbstractCegarLoop]: Abstraction has 97 states and 138 transitions. [2019-12-07 15:55:41,506 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 15:55:41,506 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 138 transitions. [2019-12-07 15:55:41,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-12-07 15:55:41,507 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:55:41,507 INFO L410 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] [2019-12-07 15:55:41,507 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:55:41,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:55:41,508 INFO L82 PathProgramCache]: Analyzing trace with hash 266687089, now seen corresponding path program 1 times [2019-12-07 15:55:41,508 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:55:41,508 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737363855] [2019-12-07 15:55:41,508 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:55:41,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:55:41,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:55:41,556 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737363855] [2019-12-07 15:55:41,556 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:55:41,556 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 15:55:41,556 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833101600] [2019-12-07 15:55:41,557 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 15:55:41,557 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 15:55:41,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 15:55:41,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 15:55:41,557 INFO L87 Difference]: Start difference. First operand 97 states and 138 transitions. Second operand 5 states. [2019-12-07 15:55:41,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:55:41,646 INFO L93 Difference]: Finished difference Result 507 states and 739 transitions. [2019-12-07 15:55:41,646 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 15:55:41,646 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2019-12-07 15:55:41,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:55:41,649 INFO L225 Difference]: With dead ends: 507 [2019-12-07 15:55:41,649 INFO L226 Difference]: Without dead ends: 416 [2019-12-07 15:55:41,650 INFO L630 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 [2019-12-07 15:55:41,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2019-12-07 15:55:41,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 165. [2019-12-07 15:55:41,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2019-12-07 15:55:41,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 230 transitions. [2019-12-07 15:55:41,667 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 230 transitions. Word has length 27 [2019-12-07 15:55:41,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:55:41,668 INFO L462 AbstractCegarLoop]: Abstraction has 165 states and 230 transitions. [2019-12-07 15:55:41,668 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 15:55:41,668 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 230 transitions. [2019-12-07 15:55:41,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-12-07 15:55:41,669 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:55:41,670 INFO L410 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] [2019-12-07 15:55:41,670 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:55:41,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:55:41,670 INFO L82 PathProgramCache]: Analyzing trace with hash -1433576653, now seen corresponding path program 1 times [2019-12-07 15:55:41,671 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:55:41,671 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497341664] [2019-12-07 15:55:41,671 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:55:41,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:55:41,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:55:41,785 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:55:41,785 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 15:55:41,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 03:55:41 BoogieIcfgContainer [2019-12-07 15:55:41,863 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 15:55:41,863 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 15:55:41,863 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 15:55:41,863 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 15:55:41,864 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:55:40" (3/4) ... [2019-12-07 15:55:41,865 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 15:55:41,932 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a1941766-98d4-4468-8cbf-a549b5c116f6/bin/uautomizer/witness.graphml [2019-12-07 15:55:41,932 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 15:55:41,934 INFO L168 Benchmark]: Toolchain (without parser) took 2024.45 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.9 MB). Free memory was 943.5 MB in the beginning and 851.1 MB in the end (delta: 92.4 MB). Peak memory consumption was 188.4 MB. Max. memory is 11.5 GB. [2019-12-07 15:55:41,935 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:55:41,935 INFO L168 Benchmark]: CACSL2BoogieTranslator took 355.66 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.9 MB). Free memory was 938.1 MB in the beginning and 1.1 GB in the end (delta: -141.8 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-12-07 15:55:41,936 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.49 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 15:55:41,936 INFO L168 Benchmark]: Boogie Preprocessor took 33.57 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 15:55:41,936 INFO L168 Benchmark]: RCFGBuilder took 524.81 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 67.0 MB). Peak memory consumption was 67.0 MB. Max. memory is 11.5 GB. [2019-12-07 15:55:41,937 INFO L168 Benchmark]: TraceAbstraction took 989.99 ms. Allocated memory is still 1.1 GB. Free memory was 996.9 MB in the beginning and 867.2 MB in the end (delta: 129.7 MB). Peak memory consumption was 129.7 MB. Max. memory is 11.5 GB. [2019-12-07 15:55:41,937 INFO L168 Benchmark]: Witness Printer took 69.38 ms. Allocated memory is still 1.1 GB. Free memory was 867.2 MB in the beginning and 851.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2019-12-07 15:55:41,939 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 355.66 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.9 MB). Free memory was 938.1 MB in the beginning and 1.1 GB in the end (delta: -141.8 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 47.49 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 33.57 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 524.81 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 67.0 MB). Peak memory consumption was 67.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 989.99 ms. Allocated memory is still 1.1 GB. Free memory was 996.9 MB in the beginning and 867.2 MB in the end (delta: 129.7 MB). Peak memory consumption was 129.7 MB. Max. memory is 11.5 GB. * Witness Printer took 69.38 ms. Allocated memory is still 1.1 GB. Free memory was 867.2 MB in the beginning and 851.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L49] int cleanupTimeShifts = 4; [L357] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L629] int pumpRunning = 0; [L630] int systemActive = 1; [L841] int waterLevel = 1; [L842] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L130] int retValue_acc ; [L131] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L179] int retValue_acc ; [L182] retValue_acc = 1 [L183] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L137] tmp = valid_product() [L139] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L556] int splverifierCounter ; [L557] int tmp ; [L558] int tmp___0 ; [L559] int tmp___1 ; [L560] int tmp___2 ; [L563] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L565] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L567] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L573] tmp = __VERIFIER_nondet_int() [L575] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L859] COND TRUE waterLevel < 2 [L860] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L583] tmp___0 = __VERIFIER_nondet_int() [L585] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L593] tmp___2 = __VERIFIER_nondet_int() [L595] COND FALSE !(\read(tmp___2)) [L599] tmp___1 = __VERIFIER_nondet_int() [L601] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L828] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L835] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L637] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L644] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L936] int tmp ; [L937] int tmp___0 ; [L938] int tmp___1 ; [L880] int retValue_acc ; [L883] retValue_acc = methaneLevelCritical [L884] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L942] tmp = isMethaneLevelCritical() [L944] COND FALSE !(\read(tmp)) [L912] int retValue_acc ; [L915] retValue_acc = waterLevel [L916] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L948] tmp___0 = getWaterLevel() [L950] COND TRUE tmp___0 == 2 [L761] int retValue_acc ; [L764] retValue_acc = pumpRunning [L765] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L952] tmp___1 = isPumpRunning() [L954] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L44] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 137 locations, 3 error locations. Result: UNSAFE, OverallTime: 0.8s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 557 SDtfs, 719 SDslu, 708 SDs, 0 SdLazy, 79 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=165occurred 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: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 306 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 109 ConstructedInterpolants, 0 QuantifiedInterpolants, 5504 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...