./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product18.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_e115c84f-8ef2-48e3-9a02-3de85f9a4b6c/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_e115c84f-8ef2-48e3-9a02-3de85f9a4b6c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e115c84f-8ef2-48e3-9a02-3de85f9a4b6c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e115c84f-8ef2-48e3-9a02-3de85f9a4b6c/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product18.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e115c84f-8ef2-48e3-9a02-3de85f9a4b6c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e115c84f-8ef2-48e3-9a02-3de85f9a4b6c/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 e775674397a9c2f1915fc4aeec4057e4316f59fc .............................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:14:49,524 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:14:49,528 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:14:49,569 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:14:49,570 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:14:49,572 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:14:49,575 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:14:49,578 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:14:49,582 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:14:49,583 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:14:49,585 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:14:49,587 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:14:49,588 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:14:49,590 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:14:49,592 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:14:49,594 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:14:49,596 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:14:49,597 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:14:49,601 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:14:49,604 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:14:49,607 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:14:49,610 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:14:49,612 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:14:49,613 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:14:49,618 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:14:49,619 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:14:49,620 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:14:49,621 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:14:49,622 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:14:49,624 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:14:49,624 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:14:49,625 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:14:49,627 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:14:49,628 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:14:49,630 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:14:49,630 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:14:49,631 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:14:49,632 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:14:49,633 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:14:49,634 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:14:49,636 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:14:49,637 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e115c84f-8ef2-48e3-9a02-3de85f9a4b6c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:14:49,670 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:14:49,670 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:14:49,672 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:14:49,672 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:14:49,673 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:14:49,673 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:14:49,674 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:14:49,674 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:14:49,674 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:14:49,674 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:14:49,675 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:14:49,675 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:14:49,675 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:14:49,676 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:14:49,676 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:14:49,676 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:14:49,677 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:14:49,677 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:14:49,677 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:14:49,678 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:14:49,678 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:14:49,678 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:14:49,679 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:14:49,679 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:14:49,679 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:14:49,680 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:14:49,680 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:14:49,680 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:14:49,680 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:14:49,681 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_e115c84f-8ef2-48e3-9a02-3de85f9a4b6c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_e115c84f-8ef2-48e3-9a02-3de85f9a4b6c/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e775674397a9c2f1915fc4aeec4057e4316f59fc [2020-11-28 03:14:50,068 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:14:50,107 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:14:50,111 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:14:50,116 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:14:50,118 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:14:50,120 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e115c84f-8ef2-48e3-9a02-3de85f9a4b6c/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product18.cil.c [2020-11-28 03:14:50,198 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e115c84f-8ef2-48e3-9a02-3de85f9a4b6c/bin/uautomizer/data/03f7272b7/4c6d455471284f438831eb3959edb093/FLAG1a4ecb9c5 [2020-11-28 03:14:50,872 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:14:50,873 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e115c84f-8ef2-48e3-9a02-3de85f9a4b6c/sv-benchmarks/c/product-lines/minepump_spec3_product18.cil.c [2020-11-28 03:14:50,889 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e115c84f-8ef2-48e3-9a02-3de85f9a4b6c/bin/uautomizer/data/03f7272b7/4c6d455471284f438831eb3959edb093/FLAG1a4ecb9c5 [2020-11-28 03:14:51,089 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e115c84f-8ef2-48e3-9a02-3de85f9a4b6c/bin/uautomizer/data/03f7272b7/4c6d455471284f438831eb3959edb093 [2020-11-28 03:14:51,092 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:14:51,094 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:14:51,096 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:14:51,096 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:14:51,100 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:14:51,102 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:14:51" (1/1) ... [2020-11-28 03:14:51,104 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@879f308 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:51, skipping insertion in model container [2020-11-28 03:14:51,105 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:14:51" (1/1) ... [2020-11-28 03:14:51,114 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:14:51,195 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:14:51,585 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:14:51,598 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:14:51,758 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:14:51,800 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:14:51,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:51 WrapperNode [2020-11-28 03:14:51,801 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:14:51,803 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:14:51,803 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:14:51,803 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:14:51,813 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:51" (1/1) ... [2020-11-28 03:14:51,839 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:51" (1/1) ... [2020-11-28 03:14:51,919 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:14:51,920 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:14:51,921 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:14:51,921 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:14:51,931 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:51" (1/1) ... [2020-11-28 03:14:51,931 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:51" (1/1) ... [2020-11-28 03:14:51,937 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:51" (1/1) ... [2020-11-28 03:14:51,938 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:51" (1/1) ... [2020-11-28 03:14:51,950 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:51" (1/1) ... [2020-11-28 03:14:51,970 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:51" (1/1) ... [2020-11-28 03:14:51,975 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:51" (1/1) ... [2020-11-28 03:14:51,989 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:14:51,991 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:14:51,991 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:14:51,991 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:14:51,993 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e115c84f-8ef2-48e3-9a02-3de85f9a4b6c/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:14:52,081 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:14:52,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:14:52,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:14:52,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:14:53,448 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:14:53,449 INFO L298 CfgBuilder]: Removed 110 assume(true) statements. [2020-11-28 03:14:53,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:14:53 BoogieIcfgContainer [2020-11-28 03:14:53,451 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:14:53,452 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:14:53,453 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:14:53,461 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:14:53,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:14:51" (1/3) ... [2020-11-28 03:14:53,462 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ef31982 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:14:53, skipping insertion in model container [2020-11-28 03:14:53,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:51" (2/3) ... [2020-11-28 03:14:53,463 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ef31982 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:14:53, skipping insertion in model container [2020-11-28 03:14:53,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:14:53" (3/3) ... [2020-11-28 03:14:53,465 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product18.cil.c [2020-11-28 03:14:53,485 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:14:53,491 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-28 03:14:53,508 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-28 03:14:53,554 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:14:53,557 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:14:53,557 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:14:53,557 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:14:53,558 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:14:53,558 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:14:53,559 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:14:53,559 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:14:53,590 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states. [2020-11-28 03:14:53,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-28 03:14:53,597 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:14:53,598 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:14:53,598 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:14:53,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:14:53,606 INFO L82 PathProgramCache]: Analyzing trace with hash -696096940, now seen corresponding path program 1 times [2020-11-28 03:14:53,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:14:53,616 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491462672] [2020-11-28 03:14:53,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:14:53,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:53,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:14:53,916 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491462672] [2020-11-28 03:14:53,917 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:14:53,917 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:14:53,918 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030002955] [2020-11-28 03:14:53,924 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 03:14:53,925 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:14:53,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 03:14:53,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:14:53,949 INFO L87 Difference]: Start difference. First operand 84 states. Second operand 2 states. [2020-11-28 03:14:54,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:14:54,011 INFO L93 Difference]: Finished difference Result 159 states and 236 transitions. [2020-11-28 03:14:54,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 03:14:54,012 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-11-28 03:14:54,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:14:54,023 INFO L225 Difference]: With dead ends: 159 [2020-11-28 03:14:54,024 INFO L226 Difference]: Without dead ends: 77 [2020-11-28 03:14:54,028 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:14:54,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-11-28 03:14:54,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2020-11-28 03:14:54,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-11-28 03:14:54,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 108 transitions. [2020-11-28 03:14:54,106 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 108 transitions. Word has length 18 [2020-11-28 03:14:54,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:14:54,106 INFO L481 AbstractCegarLoop]: Abstraction has 77 states and 108 transitions. [2020-11-28 03:14:54,107 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 03:14:54,107 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 108 transitions. [2020-11-28 03:14:54,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-28 03:14:54,109 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:14:54,109 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:14:54,109 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:14:54,110 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:14:54,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:14:54,111 INFO L82 PathProgramCache]: Analyzing trace with hash -1607127693, now seen corresponding path program 1 times [2020-11-28 03:14:54,111 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:14:54,112 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134414400] [2020-11-28 03:14:54,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:14:54,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:54,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:14:54,307 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134414400] [2020-11-28 03:14:54,308 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:14:54,308 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:14:54,308 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292626717] [2020-11-28 03:14:54,310 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:14:54,310 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:14:54,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:14:54,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:14:54,312 INFO L87 Difference]: Start difference. First operand 77 states and 108 transitions. Second operand 3 states. [2020-11-28 03:14:54,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:14:54,334 INFO L93 Difference]: Finished difference Result 77 states and 108 transitions. [2020-11-28 03:14:54,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:14:54,336 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-11-28 03:14:54,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:14:54,341 INFO L225 Difference]: With dead ends: 77 [2020-11-28 03:14:54,341 INFO L226 Difference]: Without dead ends: 35 [2020-11-28 03:14:54,343 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:14:54,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-11-28 03:14:54,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-11-28 03:14:54,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-11-28 03:14:54,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 49 transitions. [2020-11-28 03:14:54,357 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 49 transitions. Word has length 19 [2020-11-28 03:14:54,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:14:54,358 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 49 transitions. [2020-11-28 03:14:54,358 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:14:54,359 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 49 transitions. [2020-11-28 03:14:54,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-28 03:14:54,365 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:14:54,365 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:14:54,367 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:14:54,367 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:14:54,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:14:54,370 INFO L82 PathProgramCache]: Analyzing trace with hash 492093711, now seen corresponding path program 1 times [2020-11-28 03:14:54,370 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:14:54,370 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850306610] [2020-11-28 03:14:54,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:14:54,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:54,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:14:54,573 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850306610] [2020-11-28 03:14:54,573 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:14:54,573 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:14:54,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519605355] [2020-11-28 03:14:54,574 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:14:54,574 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:14:54,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:14:54,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:14:54,576 INFO L87 Difference]: Start difference. First operand 35 states and 49 transitions. Second operand 3 states. [2020-11-28 03:14:54,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:14:54,610 INFO L93 Difference]: Finished difference Result 64 states and 92 transitions. [2020-11-28 03:14:54,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:14:54,611 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-11-28 03:14:54,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:14:54,612 INFO L225 Difference]: With dead ends: 64 [2020-11-28 03:14:54,612 INFO L226 Difference]: Without dead ends: 35 [2020-11-28 03:14:54,613 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:14:54,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-11-28 03:14:54,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-11-28 03:14:54,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-11-28 03:14:54,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 48 transitions. [2020-11-28 03:14:54,632 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 48 transitions. Word has length 24 [2020-11-28 03:14:54,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:14:54,633 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 48 transitions. [2020-11-28 03:14:54,633 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:14:54,634 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 48 transitions. [2020-11-28 03:14:54,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-28 03:14:54,636 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:14:54,636 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:14:54,636 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 03:14:54,637 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:14:54,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:14:54,638 INFO L82 PathProgramCache]: Analyzing trace with hash -147058101, now seen corresponding path program 1 times [2020-11-28 03:14:54,638 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:14:54,639 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262657669] [2020-11-28 03:14:54,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:14:54,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:54,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:14:54,825 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262657669] [2020-11-28 03:14:54,825 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:14:54,825 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:14:54,826 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8559928] [2020-11-28 03:14:54,826 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:14:54,826 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:14:54,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:14:54,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:14:54,828 INFO L87 Difference]: Start difference. First operand 35 states and 48 transitions. Second operand 5 states. [2020-11-28 03:14:55,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:14:55,030 INFO L93 Difference]: Finished difference Result 172 states and 255 transitions. [2020-11-28 03:14:55,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 03:14:55,031 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-11-28 03:14:55,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:14:55,033 INFO L225 Difference]: With dead ends: 172 [2020-11-28 03:14:55,034 INFO L226 Difference]: Without dead ends: 143 [2020-11-28 03:14:55,034 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:14:55,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2020-11-28 03:14:55,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 60. [2020-11-28 03:14:55,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-11-28 03:14:55,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 83 transitions. [2020-11-28 03:14:55,049 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 83 transitions. Word has length 25 [2020-11-28 03:14:55,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:14:55,049 INFO L481 AbstractCegarLoop]: Abstraction has 60 states and 83 transitions. [2020-11-28 03:14:55,049 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:14:55,050 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 83 transitions. [2020-11-28 03:14:55,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-28 03:14:55,051 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:14:55,051 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:14:55,052 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 03:14:55,052 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:14:55,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:14:55,053 INFO L82 PathProgramCache]: Analyzing trace with hash -2106367091, now seen corresponding path program 1 times [2020-11-28 03:14:55,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:14:55,053 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941934863] [2020-11-28 03:14:55,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:14:55,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:14:55,209 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:14:55,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:14:55,330 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:14:55,403 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:14:55,403 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:14:55,403 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 03:14:55,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:14:55 BoogieIcfgContainer [2020-11-28 03:14:55,550 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:14:55,551 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:14:55,551 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:14:55,551 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:14:55,552 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:14:53" (3/4) ... [2020-11-28 03:14:55,554 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 03:14:55,697 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_e115c84f-8ef2-48e3-9a02-3de85f9a4b6c/bin/uautomizer/witness.graphml [2020-11-28 03:14:55,697 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:14:55,699 INFO L168 Benchmark]: Toolchain (without parser) took 4603.92 ms. Allocated memory was 94.4 MB in the beginning and 127.9 MB in the end (delta: 33.6 MB). Free memory was 72.3 MB in the beginning and 69.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 36.8 MB. Max. memory is 16.1 GB. [2020-11-28 03:14:55,700 INFO L168 Benchmark]: CDTParser took 0.52 ms. Allocated memory is still 71.3 MB. Free memory was 51.7 MB in the beginning and 51.6 MB in the end (delta: 39.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:14:55,700 INFO L168 Benchmark]: CACSL2BoogieTranslator took 705.63 ms. Allocated memory is still 94.4 MB. Free memory was 72.3 MB in the beginning and 59.7 MB in the end (delta: 12.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-28 03:14:55,701 INFO L168 Benchmark]: Boogie Procedure Inliner took 116.31 ms. Allocated memory is still 94.4 MB. Free memory was 59.7 MB in the beginning and 56.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:14:55,705 INFO L168 Benchmark]: Boogie Preprocessor took 69.67 ms. Allocated memory is still 94.4 MB. Free memory was 56.6 MB in the beginning and 54.4 MB in the end (delta: 2.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:14:55,706 INFO L168 Benchmark]: RCFGBuilder took 1460.18 ms. Allocated memory is still 94.4 MB. Free memory was 54.3 MB in the beginning and 62.8 MB in the end (delta: -8.5 MB). Peak memory consumption was 26.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:14:55,707 INFO L168 Benchmark]: TraceAbstraction took 2097.74 ms. Allocated memory was 94.4 MB in the beginning and 127.9 MB in the end (delta: 33.6 MB). Free memory was 62.3 MB in the beginning and 80.1 MB in the end (delta: -17.9 MB). Peak memory consumption was 15.8 MB. Max. memory is 16.1 GB. [2020-11-28 03:14:55,708 INFO L168 Benchmark]: Witness Printer took 146.23 ms. Allocated memory is still 127.9 MB. Free memory was 80.1 MB in the beginning and 69.7 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:14:55,714 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52 ms. Allocated memory is still 71.3 MB. Free memory was 51.7 MB in the beginning and 51.6 MB in the end (delta: 39.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 705.63 ms. Allocated memory is still 94.4 MB. Free memory was 72.3 MB in the beginning and 59.7 MB in the end (delta: 12.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 116.31 ms. Allocated memory is still 94.4 MB. Free memory was 59.7 MB in the beginning and 56.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 69.67 ms. Allocated memory is still 94.4 MB. Free memory was 56.6 MB in the beginning and 54.4 MB in the end (delta: 2.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 1460.18 ms. Allocated memory is still 94.4 MB. Free memory was 54.3 MB in the beginning and 62.8 MB in the end (delta: -8.5 MB). Peak memory consumption was 26.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2097.74 ms. Allocated memory was 94.4 MB in the beginning and 127.9 MB in the end (delta: 33.6 MB). Free memory was 62.3 MB in the beginning and 80.1 MB in the end (delta: -17.9 MB). Peak memory consumption was 15.8 MB. Max. memory is 16.1 GB. * Witness Printer took 146.23 ms. Allocated memory is still 127.9 MB. Free memory was 80.1 MB in the beginning and 69.7 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L42] int cleanupTimeShifts = 4; [L151] int waterLevel = 1; [L152] int methaneLevelCritical = 0; [L409] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L610] int pumpRunning = 0; [L611] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L123] int retValue_acc ; [L124] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L864] int retValue_acc ; [L867] retValue_acc = 1 [L868] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L772] int splverifierCounter ; [L773] int tmp ; [L774] int tmp___0 ; [L775] int tmp___1 ; [L776] int tmp___2 ; [L779] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L781] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L783] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L789] tmp = __VERIFIER_nondet_int() [L791] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L169] COND TRUE waterLevel < 2 [L170] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L799] tmp___0 = __VERIFIER_nondet_int() [L801] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L809] tmp___2 = __VERIFIER_nondet_int() [L811] COND TRUE \read(tmp___2) [L766] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L618] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L625] COND TRUE \read(systemActive) [L647] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L650] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L875] int tmp ; [L876] int tmp___0 ; [L877] int tmp___1 ; [L190] int retValue_acc ; [L193] retValue_acc = methaneLevelCritical [L194] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L881] tmp = isMethaneLevelCritical() [L883] COND FALSE !(\read(tmp)) [L222] int retValue_acc ; [L225] retValue_acc = waterLevel [L226] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L887] tmp___0 = getWaterLevel() [L889] COND TRUE tmp___0 == 2 [L699] int retValue_acc ; [L702] retValue_acc = pumpRunning [L703] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L891] tmp___1 = isPumpRunning() [L893] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L3] __assert_fail("0", "minepump_spec3_product18.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 84 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.8s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 281 SDtfs, 278 SDslu, 183 SDs, 0 SdLazy, 43 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=84occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 83 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 2890 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...