./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product34.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_77e456dc-ba46-46d4-ab58-04017267fb90/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_77e456dc-ba46-46d4-ab58-04017267fb90/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_77e456dc-ba46-46d4-ab58-04017267fb90/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_77e456dc-ba46-46d4-ab58-04017267fb90/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product34.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_77e456dc-ba46-46d4-ab58-04017267fb90/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_77e456dc-ba46-46d4-ab58-04017267fb90/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 5755897c1254f90f3058dc77caf92ead54b02784 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 [2020-11-30 01:25:00,145 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:25:00,149 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:25:00,217 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:25:00,218 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:25:00,224 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:25:00,246 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:25:00,248 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:25:00,250 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:25:00,251 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:25:00,253 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:25:00,254 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:25:00,254 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:25:00,267 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:25:00,269 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:25:00,271 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:25:00,272 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:25:00,274 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:25:00,283 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:25:00,285 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:25:00,292 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:25:00,293 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:25:00,295 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:25:00,297 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:25:00,301 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:25:00,303 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:25:00,304 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:25:00,305 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:25:00,307 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:25:00,309 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:25:00,309 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:25:00,311 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:25:00,313 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:25:00,315 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:25:00,316 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:25:00,316 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:25:00,318 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:25:00,318 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:25:00,318 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:25:00,320 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:25:00,320 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:25:00,324 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_77e456dc-ba46-46d4-ab58-04017267fb90/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-30 01:25:00,373 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:25:00,374 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:25:00,376 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:25:00,377 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:25:00,377 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:25:00,377 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:25:00,377 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:25:00,378 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:25:00,378 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:25:00,378 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:25:00,380 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:25:00,380 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:25:00,380 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:25:00,380 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:25:00,381 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:25:00,381 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:25:00,381 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:25:00,381 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:25:00,382 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:25:00,382 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:25:00,382 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:25:00,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:25:00,383 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:25:00,383 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:25:00,383 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:25:00,383 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 01:25:00,384 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 01:25:00,384 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:25:00,384 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:25:00,384 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_77e456dc-ba46-46d4-ab58-04017267fb90/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_77e456dc-ba46-46d4-ab58-04017267fb90/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5755897c1254f90f3058dc77caf92ead54b02784 [2020-11-30 01:25:00,656 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:25:00,684 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:25:00,687 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:25:00,689 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:25:00,691 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:25:00,692 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_77e456dc-ba46-46d4-ab58-04017267fb90/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product34.cil.c [2020-11-30 01:25:00,778 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_77e456dc-ba46-46d4-ab58-04017267fb90/bin/uautomizer/data/8276e505c/96faa7411bb04736ba596b9da142a423/FLAGeb54d0acf [2020-11-30 01:25:01,445 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:25:01,455 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_77e456dc-ba46-46d4-ab58-04017267fb90/sv-benchmarks/c/product-lines/minepump_spec4_product34.cil.c [2020-11-30 01:25:01,468 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_77e456dc-ba46-46d4-ab58-04017267fb90/bin/uautomizer/data/8276e505c/96faa7411bb04736ba596b9da142a423/FLAGeb54d0acf [2020-11-30 01:25:01,701 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_77e456dc-ba46-46d4-ab58-04017267fb90/bin/uautomizer/data/8276e505c/96faa7411bb04736ba596b9da142a423 [2020-11-30 01:25:01,704 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:25:01,711 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:25:01,713 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:25:01,714 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:25:01,718 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:25:01,720 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:25:01" (1/1) ... [2020-11-30 01:25:01,724 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40e64365 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:25:01, skipping insertion in model container [2020-11-30 01:25:01,725 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:25:01" (1/1) ... [2020-11-30 01:25:01,735 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:25:01,810 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:25:02,203 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:25:02,219 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:25:02,329 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:25:02,369 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:25:02,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:25:02 WrapperNode [2020-11-30 01:25:02,370 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:25:02,371 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:25:02,372 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:25:02,372 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:25:02,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:25:02" (1/1) ... [2020-11-30 01:25:02,402 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:25:02" (1/1) ... [2020-11-30 01:25:02,452 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:25:02,453 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:25:02,454 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:25:02,454 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:25:02,480 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:25:02" (1/1) ... [2020-11-30 01:25:02,480 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:25:02" (1/1) ... [2020-11-30 01:25:02,485 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:25:02" (1/1) ... [2020-11-30 01:25:02,485 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:25:02" (1/1) ... [2020-11-30 01:25:02,497 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:25:02" (1/1) ... [2020-11-30 01:25:02,504 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:25:02" (1/1) ... [2020-11-30 01:25:02,508 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:25:02" (1/1) ... [2020-11-30 01:25:02,513 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:25:02,514 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:25:02,514 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:25:02,514 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:25:02,518 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:25:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_77e456dc-ba46-46d4-ab58-04017267fb90/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 [2020-11-30 01:25:02,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:25:02,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 01:25:02,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:25:02,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:25:03,610 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:25:03,615 INFO L298 CfgBuilder]: Removed 104 assume(true) statements. [2020-11-30 01:25:03,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:25:03 BoogieIcfgContainer [2020-11-30 01:25:03,618 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:25:03,620 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 01:25:03,622 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 01:25:03,626 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 01:25:03,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 01:25:01" (1/3) ... [2020-11-30 01:25:03,628 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9836beb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:25:03, skipping insertion in model container [2020-11-30 01:25:03,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:25:02" (2/3) ... [2020-11-30 01:25:03,629 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9836beb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:25:03, skipping insertion in model container [2020-11-30 01:25:03,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:25:03" (3/3) ... [2020-11-30 01:25:03,631 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product34.cil.c [2020-11-30 01:25:03,644 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 01:25:03,649 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-30 01:25:03,663 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-30 01:25:03,710 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 01:25:03,710 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 01:25:03,710 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 01:25:03,710 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:25:03,711 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:25:03,711 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 01:25:03,711 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:25:03,711 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 01:25:03,728 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states. [2020-11-30 01:25:03,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-30 01:25:03,735 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:25:03,735 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:25:03,736 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:25:03,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:25:03,743 INFO L82 PathProgramCache]: Analyzing trace with hash -1558904107, now seen corresponding path program 1 times [2020-11-30 01:25:03,753 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:25:03,753 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216751127] [2020-11-30 01:25:03,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:25:03,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:25:04,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:25:04,015 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216751127] [2020-11-30 01:25:04,016 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:25:04,017 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 01:25:04,018 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231841646] [2020-11-30 01:25:04,023 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 01:25:04,024 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:25:04,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 01:25:04,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 01:25:04,046 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 2 states. [2020-11-30 01:25:04,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:25:04,096 INFO L93 Difference]: Finished difference Result 153 states and 230 transitions. [2020-11-30 01:25:04,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 01:25:04,098 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-11-30 01:25:04,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:25:04,116 INFO L225 Difference]: With dead ends: 153 [2020-11-30 01:25:04,117 INFO L226 Difference]: Without dead ends: 74 [2020-11-30 01:25:04,130 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 [2020-11-30 01:25:04,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-11-30 01:25:04,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-11-30 01:25:04,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-11-30 01:25:04,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 105 transitions. [2020-11-30 01:25:04,201 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 105 transitions. Word has length 16 [2020-11-30 01:25:04,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:25:04,202 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 105 transitions. [2020-11-30 01:25:04,202 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 01:25:04,203 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 105 transitions. [2020-11-30 01:25:04,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-30 01:25:04,205 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:25:04,205 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:25:04,206 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 01:25:04,206 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:25:04,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:25:04,210 INFO L82 PathProgramCache]: Analyzing trace with hash 1073231156, now seen corresponding path program 1 times [2020-11-30 01:25:04,211 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:25:04,211 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983959612] [2020-11-30 01:25:04,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:25:04,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:25:04,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:25:04,423 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983959612] [2020-11-30 01:25:04,424 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:25:04,424 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:25:04,424 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935384898] [2020-11-30 01:25:04,425 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:25:04,426 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:25:04,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:25:04,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:25:04,431 INFO L87 Difference]: Start difference. First operand 74 states and 105 transitions. Second operand 3 states. [2020-11-30 01:25:04,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:25:04,451 INFO L93 Difference]: Finished difference Result 74 states and 105 transitions. [2020-11-30 01:25:04,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:25:04,452 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-11-30 01:25:04,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:25:04,455 INFO L225 Difference]: With dead ends: 74 [2020-11-30 01:25:04,456 INFO L226 Difference]: Without dead ends: 34 [2020-11-30 01:25:04,457 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 [2020-11-30 01:25:04,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-11-30 01:25:04,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-11-30 01:25:04,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-11-30 01:25:04,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 48 transitions. [2020-11-30 01:25:04,468 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 48 transitions. Word has length 17 [2020-11-30 01:25:04,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:25:04,468 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 48 transitions. [2020-11-30 01:25:04,469 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:25:04,469 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 48 transitions. [2020-11-30 01:25:04,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-30 01:25:04,472 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:25:04,472 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:25:04,473 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 01:25:04,473 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:25:04,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:25:04,474 INFO L82 PathProgramCache]: Analyzing trace with hash -964945646, now seen corresponding path program 1 times [2020-11-30 01:25:04,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:25:04,476 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111068509] [2020-11-30 01:25:04,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:25:04,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:25:04,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:25:04,626 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111068509] [2020-11-30 01:25:04,626 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:25:04,627 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 01:25:04,627 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318708315] [2020-11-30 01:25:04,627 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 01:25:04,628 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:25:04,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 01:25:04,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:25:04,629 INFO L87 Difference]: Start difference. First operand 34 states and 48 transitions. Second operand 5 states. [2020-11-30 01:25:04,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:25:04,725 INFO L93 Difference]: Finished difference Result 62 states and 90 transitions. [2020-11-30 01:25:04,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 01:25:04,726 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-11-30 01:25:04,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:25:04,727 INFO L225 Difference]: With dead ends: 62 [2020-11-30 01:25:04,728 INFO L226 Difference]: Without dead ends: 34 [2020-11-30 01:25:04,728 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-30 01:25:04,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-11-30 01:25:04,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-11-30 01:25:04,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-11-30 01:25:04,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 47 transitions. [2020-11-30 01:25:04,743 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 47 transitions. Word has length 22 [2020-11-30 01:25:04,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:25:04,743 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 47 transitions. [2020-11-30 01:25:04,743 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 01:25:04,744 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 47 transitions. [2020-11-30 01:25:04,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-30 01:25:04,747 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:25:04,747 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:25:04,748 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-30 01:25:04,749 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:25:04,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:25:04,750 INFO L82 PathProgramCache]: Analyzing trace with hash -952202930, now seen corresponding path program 1 times [2020-11-30 01:25:04,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:25:04,750 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558884259] [2020-11-30 01:25:04,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:25:04,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:25:04,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:25:04,850 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558884259] [2020-11-30 01:25:04,851 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:25:04,851 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 01:25:04,851 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037523656] [2020-11-30 01:25:04,851 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:25:04,852 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:25:04,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:25:04,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:25:04,853 INFO L87 Difference]: Start difference. First operand 34 states and 47 transitions. Second operand 3 states. [2020-11-30 01:25:04,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:25:04,896 INFO L93 Difference]: Finished difference Result 83 states and 118 transitions. [2020-11-30 01:25:04,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:25:04,897 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-11-30 01:25:04,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:25:04,898 INFO L225 Difference]: With dead ends: 83 [2020-11-30 01:25:04,898 INFO L226 Difference]: Without dead ends: 55 [2020-11-30 01:25:04,899 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 [2020-11-30 01:25:04,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-11-30 01:25:04,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 53. [2020-11-30 01:25:04,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-11-30 01:25:04,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 74 transitions. [2020-11-30 01:25:04,916 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 74 transitions. Word has length 23 [2020-11-30 01:25:04,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:25:04,917 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 74 transitions. [2020-11-30 01:25:04,917 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:25:04,917 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 74 transitions. [2020-11-30 01:25:04,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-11-30 01:25:04,919 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:25:04,919 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:25:04,920 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-30 01:25:04,920 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:25:04,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:25:04,921 INFO L82 PathProgramCache]: Analyzing trace with hash -2049720417, now seen corresponding path program 1 times [2020-11-30 01:25:04,922 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:25:04,922 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823377425] [2020-11-30 01:25:04,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:25:04,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:25:05,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:25:05,041 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823377425] [2020-11-30 01:25:05,041 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:25:05,041 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 01:25:05,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752868990] [2020-11-30 01:25:05,042 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 01:25:05,042 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:25:05,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 01:25:05,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:25:05,043 INFO L87 Difference]: Start difference. First operand 53 states and 74 transitions. Second operand 5 states. [2020-11-30 01:25:05,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:25:05,125 INFO L93 Difference]: Finished difference Result 139 states and 194 transitions. [2020-11-30 01:25:05,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 01:25:05,128 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2020-11-30 01:25:05,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:25:05,129 INFO L225 Difference]: With dead ends: 139 [2020-11-30 01:25:05,129 INFO L226 Difference]: Without dead ends: 92 [2020-11-30 01:25:05,130 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-30 01:25:05,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-11-30 01:25:05,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 56. [2020-11-30 01:25:05,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-11-30 01:25:05,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 77 transitions. [2020-11-30 01:25:05,147 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 77 transitions. Word has length 29 [2020-11-30 01:25:05,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:25:05,148 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 77 transitions. [2020-11-30 01:25:05,148 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 01:25:05,149 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 77 transitions. [2020-11-30 01:25:05,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-11-30 01:25:05,150 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:25:05,150 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:25:05,150 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-30 01:25:05,151 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:25:05,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:25:05,152 INFO L82 PathProgramCache]: Analyzing trace with hash 612790626, now seen corresponding path program 1 times [2020-11-30 01:25:05,152 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:25:05,152 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144537695] [2020-11-30 01:25:05,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:25:05,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:25:05,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:25:05,286 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144537695] [2020-11-30 01:25:05,287 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:25:05,287 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-30 01:25:05,287 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223493981] [2020-11-30 01:25:05,288 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-30 01:25:05,288 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:25:05,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-30 01:25:05,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-11-30 01:25:05,289 INFO L87 Difference]: Start difference. First operand 56 states and 77 transitions. Second operand 8 states. [2020-11-30 01:25:05,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:25:05,817 INFO L93 Difference]: Finished difference Result 347 states and 497 transitions. [2020-11-30 01:25:05,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-30 01:25:05,819 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 29 [2020-11-30 01:25:05,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:25:05,823 INFO L225 Difference]: With dead ends: 347 [2020-11-30 01:25:05,824 INFO L226 Difference]: Without dead ends: 297 [2020-11-30 01:25:05,827 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-11-30 01:25:05,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2020-11-30 01:25:05,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 140. [2020-11-30 01:25:05,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-11-30 01:25:05,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 190 transitions. [2020-11-30 01:25:05,865 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 190 transitions. Word has length 29 [2020-11-30 01:25:05,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:25:05,866 INFO L481 AbstractCegarLoop]: Abstraction has 140 states and 190 transitions. [2020-11-30 01:25:05,866 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-30 01:25:05,866 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 190 transitions. [2020-11-30 01:25:05,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-11-30 01:25:05,869 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:25:05,869 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:25:05,869 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-30 01:25:05,870 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:25:05,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:25:05,870 INFO L82 PathProgramCache]: Analyzing trace with hash -1919887718, now seen corresponding path program 1 times [2020-11-30 01:25:05,871 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:25:05,871 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731666003] [2020-11-30 01:25:05,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:25:05,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:25:05,947 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-30 01:25:05,947 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731666003] [2020-11-30 01:25:05,947 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:25:05,948 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-30 01:25:05,948 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196719049] [2020-11-30 01:25:05,948 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 01:25:05,949 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:25:05,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 01:25:05,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:25:05,950 INFO L87 Difference]: Start difference. First operand 140 states and 190 transitions. Second operand 6 states. [2020-11-30 01:25:06,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:25:06,049 INFO L93 Difference]: Finished difference Result 325 states and 442 transitions. [2020-11-30 01:25:06,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-30 01:25:06,050 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 44 [2020-11-30 01:25:06,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:25:06,052 INFO L225 Difference]: With dead ends: 325 [2020-11-30 01:25:06,053 INFO L226 Difference]: Without dead ends: 191 [2020-11-30 01:25:06,056 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-11-30 01:25:06,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2020-11-30 01:25:06,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 120. [2020-11-30 01:25:06,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-11-30 01:25:06,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 160 transitions. [2020-11-30 01:25:06,090 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 160 transitions. Word has length 44 [2020-11-30 01:25:06,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:25:06,093 INFO L481 AbstractCegarLoop]: Abstraction has 120 states and 160 transitions. [2020-11-30 01:25:06,093 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 01:25:06,094 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 160 transitions. [2020-11-30 01:25:06,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-11-30 01:25:06,103 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:25:06,104 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:25:06,104 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-30 01:25:06,104 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:25:06,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:25:06,105 INFO L82 PathProgramCache]: Analyzing trace with hash -1876341862, now seen corresponding path program 1 times [2020-11-30 01:25:06,106 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:25:06,106 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674232082] [2020-11-30 01:25:06,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:25:06,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:25:06,245 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:25:06,246 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674232082] [2020-11-30 01:25:06,246 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [385179303] [2020-11-30 01:25:06,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_77e456dc-ba46-46d4-ab58-04017267fb90/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:25:06,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:25:06,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-30 01:25:06,486 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:25:06,677 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:25:06,678 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-30 01:25:06,678 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2020-11-30 01:25:06,679 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686373837] [2020-11-30 01:25:06,679 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-30 01:25:06,680 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:25:06,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-30 01:25:06,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-30 01:25:06,681 INFO L87 Difference]: Start difference. First operand 120 states and 160 transitions. Second operand 8 states. [2020-11-30 01:25:07,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:25:07,035 INFO L93 Difference]: Finished difference Result 412 states and 570 transitions. [2020-11-30 01:25:07,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-30 01:25:07,036 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 45 [2020-11-30 01:25:07,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:25:07,040 INFO L225 Difference]: With dead ends: 412 [2020-11-30 01:25:07,040 INFO L226 Difference]: Without dead ends: 321 [2020-11-30 01:25:07,042 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2020-11-30 01:25:07,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-11-30 01:25:07,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 159. [2020-11-30 01:25:07,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2020-11-30 01:25:07,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 211 transitions. [2020-11-30 01:25:07,092 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 211 transitions. Word has length 45 [2020-11-30 01:25:07,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:25:07,093 INFO L481 AbstractCegarLoop]: Abstraction has 159 states and 211 transitions. [2020-11-30 01:25:07,093 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-30 01:25:07,093 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 211 transitions. [2020-11-30 01:25:07,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-11-30 01:25:07,097 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:25:07,098 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:25:07,323 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2020-11-30 01:25:07,324 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:25:07,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:25:07,324 INFO L82 PathProgramCache]: Analyzing trace with hash 1136122685, now seen corresponding path program 2 times [2020-11-30 01:25:07,325 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:25:07,325 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784055476] [2020-11-30 01:25:07,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:25:07,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:25:07,423 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:25:07,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:25:07,512 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:25:07,574 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:25:07,574 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 01:25:07,575 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-30 01:25:07,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 01:25:07 BoogieIcfgContainer [2020-11-30 01:25:07,823 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 01:25:07,824 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:25:07,824 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:25:07,824 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:25:07,825 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:25:03" (3/4) ... [2020-11-30 01:25:07,827 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-30 01:25:08,023 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_77e456dc-ba46-46d4-ab58-04017267fb90/bin/uautomizer/witness.graphml [2020-11-30 01:25:08,023 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:25:08,026 INFO L168 Benchmark]: Toolchain (without parser) took 6313.73 ms. Allocated memory was 121.6 MB in the beginning and 153.1 MB in the end (delta: 31.5 MB). Free memory was 88.8 MB in the beginning and 89.4 MB in the end (delta: -672.7 kB). Peak memory consumption was 30.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:25:08,027 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 77.6 MB. Free memory was 35.8 MB in the beginning and 35.7 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:25:08,028 INFO L168 Benchmark]: CACSL2BoogieTranslator took 657.06 ms. Allocated memory is still 121.6 MB. Free memory was 88.4 MB in the beginning and 87.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 01:25:08,028 INFO L168 Benchmark]: Boogie Procedure Inliner took 81.30 ms. Allocated memory is still 121.6 MB. Free memory was 87.0 MB in the beginning and 84.1 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:25:08,031 INFO L168 Benchmark]: Boogie Preprocessor took 59.77 ms. Allocated memory is still 121.6 MB. Free memory was 84.1 MB in the beginning and 82.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:25:08,032 INFO L168 Benchmark]: RCFGBuilder took 1103.99 ms. Allocated memory is still 121.6 MB. Free memory was 82.0 MB in the beginning and 92.2 MB in the end (delta: -10.2 MB). Peak memory consumption was 53.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:25:08,032 INFO L168 Benchmark]: TraceAbstraction took 4203.54 ms. Allocated memory was 121.6 MB in the beginning and 153.1 MB in the end (delta: 31.5 MB). Free memory was 92.2 MB in the beginning and 111.5 MB in the end (delta: -19.3 MB). Peak memory consumption was 81.0 MB. Max. memory is 16.1 GB. [2020-11-30 01:25:08,033 INFO L168 Benchmark]: Witness Printer took 199.77 ms. Allocated memory is still 153.1 MB. Free memory was 111.5 MB in the beginning and 89.4 MB in the end (delta: 22.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:25:08,035 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 77.6 MB. Free memory was 35.8 MB in the beginning and 35.7 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 657.06 ms. Allocated memory is still 121.6 MB. Free memory was 88.4 MB in the beginning and 87.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 81.30 ms. Allocated memory is still 121.6 MB. Free memory was 87.0 MB in the beginning and 84.1 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 59.77 ms. Allocated memory is still 121.6 MB. Free memory was 84.1 MB in the beginning and 82.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1103.99 ms. Allocated memory is still 121.6 MB. Free memory was 82.0 MB in the beginning and 92.2 MB in the end (delta: -10.2 MB). Peak memory consumption was 53.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4203.54 ms. Allocated memory was 121.6 MB in the beginning and 153.1 MB in the end (delta: 31.5 MB). Free memory was 92.2 MB in the beginning and 111.5 MB in the end (delta: -19.3 MB). Peak memory consumption was 81.0 MB. Max. memory is 16.1 GB. * Witness Printer took 199.77 ms. Allocated memory is still 153.1 MB. Free memory was 111.5 MB in the beginning and 89.4 MB in the end (delta: 22.0 MB). Peak memory consumption was 23.1 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: [L71] int cleanupTimeShifts = 4; [L284] int pumpRunning = 0; [L285] int systemActive = 1; [L444] int waterLevel = 1; [L445] int methaneLevelCritical = 0; [L716] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L152] int retValue_acc ; [L153] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L201] int retValue_acc ; [L204] retValue_acc = 1 [L205] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L159] tmp = valid_product() [L161] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L212] int splverifierCounter ; [L213] int tmp ; [L214] int tmp___0 ; [L215] int tmp___1 ; [L216] int tmp___2 ; [L219] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L221] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L223] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L229] tmp = __VERIFIER_nondet_int() [L231] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L462] COND TRUE waterLevel < 2 [L463] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L239] tmp___0 = __VERIFIER_nondet_int() [L241] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L249] tmp___2 = __VERIFIER_nondet_int() [L251] COND TRUE \read(tmp___2) [L439] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L291] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L298] COND TRUE \read(systemActive) [L320] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L323] COND TRUE ! pumpRunning [L417] int retValue_acc ; [L418] int tmp ; [L419] int tmp___0 ; [L524] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L527] COND FALSE !(waterLevel < 2) [L531] retValue_acc = 0 [L532] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L423] tmp = isHighWaterSensorDry() [L425] COND FALSE !(\read(tmp)) [L428] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L430] retValue_acc = tmp___0 [L431] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L325] tmp = isHighWaterLevel() [L327] COND TRUE \read(tmp) [L348] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L46] int tmp ; [L47] int tmp___0 ; [L515] int retValue_acc ; [L518] retValue_acc = waterLevel [L519] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L51] tmp = getWaterLevel() [L53] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L221] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L223] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L229] tmp = __VERIFIER_nondet_int() [L231] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L239] tmp___0 = __VERIFIER_nondet_int() [L241] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L249] tmp___2 = __VERIFIER_nondet_int() [L251] COND TRUE \read(tmp___2) [L439] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L291] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L450] COND TRUE waterLevel > 0 [L451] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L298] COND TRUE \read(systemActive) [L320] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L323] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L46] int tmp ; [L47] int tmp___0 ; [L515] int retValue_acc ; [L518] retValue_acc = waterLevel [L519] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L51] tmp = getWaterLevel() [L53] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L221] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L223] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L229] tmp = __VERIFIER_nondet_int() [L231] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L239] tmp___0 = __VERIFIER_nondet_int() [L241] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L249] tmp___2 = __VERIFIER_nondet_int() [L251] COND TRUE \read(tmp___2) [L439] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L291] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L450] COND TRUE waterLevel > 0 [L451] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L298] COND TRUE \read(systemActive) [L320] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L323] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L46] int tmp ; [L47] int tmp___0 ; [L515] int retValue_acc ; [L518] retValue_acc = waterLevel [L519] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L51] tmp = getWaterLevel() [L53] COND TRUE tmp == 0 [L372] int retValue_acc ; [L375] retValue_acc = pumpRunning [L376] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L55] tmp___0 = isPumpRunning() [L57] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L3] __assert_fail("0", "minepump_spec4_product34.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 81 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.8s, OverallIterations: 9, TraceHistogramMax: 3, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 552 SDtfs, 1064 SDslu, 1013 SDs, 0 SdLazy, 197 SolverSat, 49 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 116 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=159occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 428 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 330 NumberOfCodeBlocks, 330 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 261 ConstructedInterpolants, 0 QuantifiedInterpolants, 16395 SizeOfPredicates, 4 NumberOfNonLiveVariables, 401 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 9 InterpolantComputations, 7 PerfectInterpolantSequences, 36/42 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...