./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product35.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_e066b633-46a4-488e-89bf-d68693ea55ab/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_e066b633-46a4-488e-89bf-d68693ea55ab/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e066b633-46a4-488e-89bf-d68693ea55ab/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e066b633-46a4-488e-89bf-d68693ea55ab/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product35.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e066b633-46a4-488e-89bf-d68693ea55ab/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e066b633-46a4-488e-89bf-d68693ea55ab/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 16128519e0e6ced40821c523f29c760d3ecfedbe .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 [2020-11-29 22:38:25,383 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 22:38:25,385 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 22:38:25,445 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 22:38:25,446 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 22:38:25,447 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 22:38:25,450 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 22:38:25,452 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 22:38:25,455 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 22:38:25,456 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 22:38:25,458 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 22:38:25,459 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 22:38:25,460 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 22:38:25,461 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 22:38:25,463 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 22:38:25,464 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 22:38:25,465 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 22:38:25,467 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 22:38:25,469 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 22:38:25,472 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 22:38:25,474 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 22:38:25,478 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 22:38:25,480 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 22:38:25,482 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 22:38:25,488 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 22:38:25,491 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 22:38:25,491 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 22:38:25,493 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 22:38:25,494 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 22:38:25,496 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 22:38:25,496 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 22:38:25,498 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 22:38:25,500 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 22:38:25,501 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 22:38:25,503 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 22:38:25,503 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 22:38:25,505 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 22:38:25,505 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 22:38:25,505 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 22:38:25,506 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 22:38:25,507 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 22:38:25,510 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e066b633-46a4-488e-89bf-d68693ea55ab/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 22:38:25,558 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 22:38:25,558 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 22:38:25,560 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 22:38:25,561 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 22:38:25,561 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 22:38:25,561 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 22:38:25,562 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 22:38:25,562 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 22:38:25,562 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 22:38:25,562 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 22:38:25,563 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 22:38:25,564 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 22:38:25,564 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 22:38:25,564 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 22:38:25,565 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 22:38:25,565 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 22:38:25,565 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 22:38:25,565 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 22:38:25,566 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 22:38:25,566 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 22:38:25,566 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 22:38:25,566 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 22:38:25,567 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 22:38:25,567 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 22:38:25,567 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 22:38:25,567 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 22:38:25,568 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 22:38:25,568 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 22:38:25,568 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 22:38:25,568 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_e066b633-46a4-488e-89bf-d68693ea55ab/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_e066b633-46a4-488e-89bf-d68693ea55ab/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16128519e0e6ced40821c523f29c760d3ecfedbe [2020-11-29 22:38:25,890 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 22:38:25,931 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 22:38:25,935 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 22:38:25,937 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 22:38:25,938 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 22:38:25,940 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e066b633-46a4-488e-89bf-d68693ea55ab/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec1_product35.cil.c [2020-11-29 22:38:26,024 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e066b633-46a4-488e-89bf-d68693ea55ab/bin/uautomizer/data/249ddbca9/ef97581c57bd46438257582f64527024/FLAG89486e781 [2020-11-29 22:38:26,547 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 22:38:26,548 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e066b633-46a4-488e-89bf-d68693ea55ab/sv-benchmarks/c/product-lines/minepump_spec1_product35.cil.c [2020-11-29 22:38:26,570 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e066b633-46a4-488e-89bf-d68693ea55ab/bin/uautomizer/data/249ddbca9/ef97581c57bd46438257582f64527024/FLAG89486e781 [2020-11-29 22:38:26,877 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e066b633-46a4-488e-89bf-d68693ea55ab/bin/uautomizer/data/249ddbca9/ef97581c57bd46438257582f64527024 [2020-11-29 22:38:26,880 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 22:38:26,881 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 22:38:26,886 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 22:38:26,887 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 22:38:26,890 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 22:38:26,892 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:38:26" (1/1) ... [2020-11-29 22:38:26,894 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@289046ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:38:26, skipping insertion in model container [2020-11-29 22:38:26,896 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:38:26" (1/1) ... [2020-11-29 22:38:26,903 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 22:38:26,968 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 22:38:27,319 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:38:27,333 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 22:38:27,458 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:38:27,492 INFO L208 MainTranslator]: Completed translation [2020-11-29 22:38:27,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:38:27 WrapperNode [2020-11-29 22:38:27,493 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 22:38:27,496 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 22:38:27,496 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 22:38:27,496 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 22:38:27,504 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:38:27" (1/1) ... [2020-11-29 22:38:27,539 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:38:27" (1/1) ... [2020-11-29 22:38:27,583 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 22:38:27,584 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 22:38:27,584 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 22:38:27,585 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 22:38:27,599 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:38:27" (1/1) ... [2020-11-29 22:38:27,599 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:38:27" (1/1) ... [2020-11-29 22:38:27,603 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:38:27" (1/1) ... [2020-11-29 22:38:27,603 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:38:27" (1/1) ... [2020-11-29 22:38:27,614 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:38:27" (1/1) ... [2020-11-29 22:38:27,625 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:38:27" (1/1) ... [2020-11-29 22:38:27,645 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:38:27" (1/1) ... [2020-11-29 22:38:27,649 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 22:38:27,650 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 22:38:27,650 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 22:38:27,651 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 22:38:27,655 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:38:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e066b633-46a4-488e-89bf-d68693ea55ab/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 [2020-11-29 22:38:27,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 22:38:27,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 22:38:27,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 22:38:27,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 22:38:28,660 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 22:38:28,660 INFO L298 CfgBuilder]: Removed 106 assume(true) statements. [2020-11-29 22:38:28,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:38:28 BoogieIcfgContainer [2020-11-29 22:38:28,662 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 22:38:28,664 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 22:38:28,664 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 22:38:28,668 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 22:38:28,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 10:38:26" (1/3) ... [2020-11-29 22:38:28,669 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dcfb764 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 10:38:28, skipping insertion in model container [2020-11-29 22:38:28,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:38:27" (2/3) ... [2020-11-29 22:38:28,669 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dcfb764 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 10:38:28, skipping insertion in model container [2020-11-29 22:38:28,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:38:28" (3/3) ... [2020-11-29 22:38:28,671 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product35.cil.c [2020-11-29 22:38:28,682 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 22:38:28,687 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-29 22:38:28,699 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-29 22:38:28,722 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 22:38:28,722 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 22:38:28,723 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 22:38:28,723 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 22:38:28,723 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 22:38:28,723 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 22:38:28,723 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 22:38:28,723 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 22:38:28,738 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states. [2020-11-29 22:38:28,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-29 22:38:28,744 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:38:28,745 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:38:28,745 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:38:28,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:38:28,754 INFO L82 PathProgramCache]: Analyzing trace with hash 349597533, now seen corresponding path program 1 times [2020-11-29 22:38:28,762 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:38:28,763 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384303074] [2020-11-29 22:38:28,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:38:28,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:38:29,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:38:29,050 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384303074] [2020-11-29 22:38:29,052 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:38:29,052 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 22:38:29,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676045549] [2020-11-29 22:38:29,057 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 22:38:29,058 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:38:29,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 22:38:29,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 22:38:29,077 INFO L87 Difference]: Start difference. First operand 83 states. Second operand 2 states. [2020-11-29 22:38:29,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:38:29,118 INFO L93 Difference]: Finished difference Result 157 states and 236 transitions. [2020-11-29 22:38:29,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 22:38:29,119 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-11-29 22:38:29,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:38:29,136 INFO L225 Difference]: With dead ends: 157 [2020-11-29 22:38:29,136 INFO L226 Difference]: Without dead ends: 76 [2020-11-29 22:38:29,144 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 [2020-11-29 22:38:29,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-11-29 22:38:29,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2020-11-29 22:38:29,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-11-29 22:38:29,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 108 transitions. [2020-11-29 22:38:29,191 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 108 transitions. Word has length 16 [2020-11-29 22:38:29,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:38:29,191 INFO L481 AbstractCegarLoop]: Abstraction has 76 states and 108 transitions. [2020-11-29 22:38:29,192 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 22:38:29,192 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 108 transitions. [2020-11-29 22:38:29,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-29 22:38:29,194 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:38:29,194 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:38:29,194 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 22:38:29,195 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:38:29,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:38:29,197 INFO L82 PathProgramCache]: Analyzing trace with hash -697159364, now seen corresponding path program 1 times [2020-11-29 22:38:29,198 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:38:29,198 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657893199] [2020-11-29 22:38:29,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:38:29,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:38:29,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:38:29,359 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657893199] [2020-11-29 22:38:29,359 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:38:29,359 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:38:29,359 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900591594] [2020-11-29 22:38:29,361 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:38:29,361 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:38:29,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:38:29,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:38:29,362 INFO L87 Difference]: Start difference. First operand 76 states and 108 transitions. Second operand 3 states. [2020-11-29 22:38:29,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:38:29,372 INFO L93 Difference]: Finished difference Result 76 states and 108 transitions. [2020-11-29 22:38:29,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:38:29,373 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-11-29 22:38:29,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:38:29,374 INFO L225 Difference]: With dead ends: 76 [2020-11-29 22:38:29,374 INFO L226 Difference]: Without dead ends: 36 [2020-11-29 22:38:29,375 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 [2020-11-29 22:38:29,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-11-29 22:38:29,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-11-29 22:38:29,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-11-29 22:38:29,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 51 transitions. [2020-11-29 22:38:29,385 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 51 transitions. Word has length 17 [2020-11-29 22:38:29,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:38:29,385 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 51 transitions. [2020-11-29 22:38:29,385 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:38:29,385 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 51 transitions. [2020-11-29 22:38:29,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-29 22:38:29,386 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:38:29,386 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] [2020-11-29 22:38:29,386 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 22:38:29,387 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:38:29,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:38:29,387 INFO L82 PathProgramCache]: Analyzing trace with hash -1160602350, now seen corresponding path program 1 times [2020-11-29 22:38:29,388 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:38:29,388 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134726506] [2020-11-29 22:38:29,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:38:29,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:38:29,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:38:29,514 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134726506] [2020-11-29 22:38:29,514 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:38:29,515 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 22:38:29,515 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700403635] [2020-11-29 22:38:29,515 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:38:29,515 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:38:29,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:38:29,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:38:29,516 INFO L87 Difference]: Start difference. First operand 36 states and 51 transitions. Second operand 3 states. [2020-11-29 22:38:29,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:38:29,541 INFO L93 Difference]: Finished difference Result 96 states and 141 transitions. [2020-11-29 22:38:29,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:38:29,544 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-11-29 22:38:29,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:38:29,546 INFO L225 Difference]: With dead ends: 96 [2020-11-29 22:38:29,546 INFO L226 Difference]: Without dead ends: 66 [2020-11-29 22:38:29,547 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 [2020-11-29 22:38:29,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-11-29 22:38:29,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 62. [2020-11-29 22:38:29,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-11-29 22:38:29,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 91 transitions. [2020-11-29 22:38:29,569 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 91 transitions. Word has length 22 [2020-11-29 22:38:29,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:38:29,569 INFO L481 AbstractCegarLoop]: Abstraction has 62 states and 91 transitions. [2020-11-29 22:38:29,570 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:38:29,570 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 91 transitions. [2020-11-29 22:38:29,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-29 22:38:29,571 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:38:29,571 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] [2020-11-29 22:38:29,571 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 22:38:29,571 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:38:29,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:38:29,572 INFO L82 PathProgramCache]: Analyzing trace with hash 1572373846, now seen corresponding path program 1 times [2020-11-29 22:38:29,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:38:29,572 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894747246] [2020-11-29 22:38:29,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:38:29,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:38:29,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:38:29,666 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894747246] [2020-11-29 22:38:29,667 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:38:29,667 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 22:38:29,667 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647881299] [2020-11-29 22:38:29,667 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:38:29,668 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:38:29,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:38:29,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:38:29,668 INFO L87 Difference]: Start difference. First operand 62 states and 91 transitions. Second operand 3 states. [2020-11-29 22:38:29,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:38:29,727 INFO L93 Difference]: Finished difference Result 159 states and 238 transitions. [2020-11-29 22:38:29,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:38:29,728 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-11-29 22:38:29,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:38:29,729 INFO L225 Difference]: With dead ends: 159 [2020-11-29 22:38:29,729 INFO L226 Difference]: Without dead ends: 103 [2020-11-29 22:38:29,730 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 [2020-11-29 22:38:29,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2020-11-29 22:38:29,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 101. [2020-11-29 22:38:29,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-11-29 22:38:29,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 147 transitions. [2020-11-29 22:38:29,743 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 147 transitions. Word has length 23 [2020-11-29 22:38:29,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:38:29,743 INFO L481 AbstractCegarLoop]: Abstraction has 101 states and 147 transitions. [2020-11-29 22:38:29,743 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:38:29,743 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 147 transitions. [2020-11-29 22:38:29,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-29 22:38:29,749 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:38:29,749 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] [2020-11-29 22:38:29,750 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-29 22:38:29,750 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:38:29,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:38:29,750 INFO L82 PathProgramCache]: Analyzing trace with hash 1956458727, now seen corresponding path program 1 times [2020-11-29 22:38:29,751 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:38:29,751 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580636937] [2020-11-29 22:38:29,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:38:29,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:38:29,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:38:29,840 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580636937] [2020-11-29 22:38:29,841 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:38:29,841 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 22:38:29,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215487252] [2020-11-29 22:38:29,841 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 22:38:29,842 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:38:29,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 22:38:29,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 22:38:29,843 INFO L87 Difference]: Start difference. First operand 101 states and 147 transitions. Second operand 5 states. [2020-11-29 22:38:29,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:38:29,999 INFO L93 Difference]: Finished difference Result 501 states and 748 transitions. [2020-11-29 22:38:29,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-29 22:38:29,999 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-11-29 22:38:30,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:38:30,003 INFO L225 Difference]: With dead ends: 501 [2020-11-29 22:38:30,003 INFO L226 Difference]: Without dead ends: 406 [2020-11-29 22:38:30,005 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-29 22:38:30,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2020-11-29 22:38:30,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 186. [2020-11-29 22:38:30,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2020-11-29 22:38:30,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 267 transitions. [2020-11-29 22:38:30,030 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 267 transitions. Word has length 25 [2020-11-29 22:38:30,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:38:30,030 INFO L481 AbstractCegarLoop]: Abstraction has 186 states and 267 transitions. [2020-11-29 22:38:30,031 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 22:38:30,031 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 267 transitions. [2020-11-29 22:38:30,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-29 22:38:30,032 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:38:30,032 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] [2020-11-29 22:38:30,032 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-29 22:38:30,033 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:38:30,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:38:30,033 INFO L82 PathProgramCache]: Analyzing trace with hash 1752651633, now seen corresponding path program 1 times [2020-11-29 22:38:30,033 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:38:30,034 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063320474] [2020-11-29 22:38:30,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:38:30,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:38:30,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:38:30,102 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063320474] [2020-11-29 22:38:30,102 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:38:30,102 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 22:38:30,102 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864893304] [2020-11-29 22:38:30,103 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 22:38:30,103 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:38:30,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 22:38:30,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 22:38:30,104 INFO L87 Difference]: Start difference. First operand 186 states and 267 transitions. Second operand 5 states. [2020-11-29 22:38:30,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:38:30,274 INFO L93 Difference]: Finished difference Result 524 states and 758 transitions. [2020-11-29 22:38:30,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-29 22:38:30,275 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2020-11-29 22:38:30,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:38:30,278 INFO L225 Difference]: With dead ends: 524 [2020-11-29 22:38:30,278 INFO L226 Difference]: Without dead ends: 522 [2020-11-29 22:38:30,279 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-29 22:38:30,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2020-11-29 22:38:30,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 186. [2020-11-29 22:38:30,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2020-11-29 22:38:30,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 265 transitions. [2020-11-29 22:38:30,316 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 265 transitions. Word has length 26 [2020-11-29 22:38:30,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:38:30,320 INFO L481 AbstractCegarLoop]: Abstraction has 186 states and 265 transitions. [2020-11-29 22:38:30,320 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 22:38:30,320 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 265 transitions. [2020-11-29 22:38:30,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-29 22:38:30,328 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:38:30,328 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:38:30,328 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-29 22:38:30,329 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:38:30,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:38:30,331 INFO L82 PathProgramCache]: Analyzing trace with hash -1960990159, now seen corresponding path program 1 times [2020-11-29 22:38:30,331 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:38:30,331 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405785411] [2020-11-29 22:38:30,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:38:30,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:38:30,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:38:30,420 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405785411] [2020-11-29 22:38:30,420 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:38:30,420 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 22:38:30,421 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573425729] [2020-11-29 22:38:30,421 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 22:38:30,421 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:38:30,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 22:38:30,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 22:38:30,422 INFO L87 Difference]: Start difference. First operand 186 states and 265 transitions. Second operand 5 states. [2020-11-29 22:38:30,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:38:30,528 INFO L93 Difference]: Finished difference Result 510 states and 719 transitions. [2020-11-29 22:38:30,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 22:38:30,528 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-11-29 22:38:30,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:38:30,531 INFO L225 Difference]: With dead ends: 510 [2020-11-29 22:38:30,531 INFO L226 Difference]: Without dead ends: 330 [2020-11-29 22:38:30,537 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 [2020-11-29 22:38:30,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2020-11-29 22:38:30,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 198. [2020-11-29 22:38:30,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-11-29 22:38:30,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 277 transitions. [2020-11-29 22:38:30,559 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 277 transitions. Word has length 30 [2020-11-29 22:38:30,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:38:30,561 INFO L481 AbstractCegarLoop]: Abstraction has 198 states and 277 transitions. [2020-11-29 22:38:30,561 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 22:38:30,561 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 277 transitions. [2020-11-29 22:38:30,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-29 22:38:30,567 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:38:30,567 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:38:30,567 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-29 22:38:30,568 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:38:30,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:38:30,568 INFO L82 PathProgramCache]: Analyzing trace with hash 1940950127, now seen corresponding path program 1 times [2020-11-29 22:38:30,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:38:30,569 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844679401] [2020-11-29 22:38:30,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:38:30,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:38:30,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:38:30,662 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844679401] [2020-11-29 22:38:30,662 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:38:30,662 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 22:38:30,663 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166505253] [2020-11-29 22:38:30,663 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 22:38:30,663 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:38:30,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 22:38:30,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 22:38:30,664 INFO L87 Difference]: Start difference. First operand 198 states and 277 transitions. Second operand 5 states. [2020-11-29 22:38:30,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:38:30,773 INFO L93 Difference]: Finished difference Result 578 states and 793 transitions. [2020-11-29 22:38:30,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-29 22:38:30,775 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-11-29 22:38:30,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:38:30,778 INFO L225 Difference]: With dead ends: 578 [2020-11-29 22:38:30,778 INFO L226 Difference]: Without dead ends: 386 [2020-11-29 22:38:30,779 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-29 22:38:30,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2020-11-29 22:38:30,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 206. [2020-11-29 22:38:30,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2020-11-29 22:38:30,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 285 transitions. [2020-11-29 22:38:30,803 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 285 transitions. Word has length 30 [2020-11-29 22:38:30,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:38:30,804 INFO L481 AbstractCegarLoop]: Abstraction has 206 states and 285 transitions. [2020-11-29 22:38:30,804 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 22:38:30,804 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 285 transitions. [2020-11-29 22:38:30,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-29 22:38:30,805 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:38:30,805 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:38:30,805 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-29 22:38:30,806 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:38:30,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:38:30,806 INFO L82 PathProgramCache]: Analyzing trace with hash -2095851731, now seen corresponding path program 1 times [2020-11-29 22:38:30,807 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:38:30,807 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334642513] [2020-11-29 22:38:30,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:38:30,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:38:30,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:38:30,850 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334642513] [2020-11-29 22:38:30,850 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:38:30,850 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 22:38:30,851 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44656954] [2020-11-29 22:38:30,851 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:38:30,851 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:38:30,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:38:30,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:38:30,852 INFO L87 Difference]: Start difference. First operand 206 states and 285 transitions. Second operand 3 states. [2020-11-29 22:38:30,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:38:30,896 INFO L93 Difference]: Finished difference Result 506 states and 694 transitions. [2020-11-29 22:38:30,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:38:30,896 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2020-11-29 22:38:30,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:38:30,898 INFO L225 Difference]: With dead ends: 506 [2020-11-29 22:38:30,898 INFO L226 Difference]: Without dead ends: 306 [2020-11-29 22:38:30,899 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 [2020-11-29 22:38:30,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2020-11-29 22:38:30,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 306. [2020-11-29 22:38:30,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 306 states. [2020-11-29 22:38:30,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 407 transitions. [2020-11-29 22:38:30,933 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 407 transitions. Word has length 30 [2020-11-29 22:38:30,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:38:30,934 INFO L481 AbstractCegarLoop]: Abstraction has 306 states and 407 transitions. [2020-11-29 22:38:30,934 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:38:30,934 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 407 transitions. [2020-11-29 22:38:30,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-29 22:38:30,935 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:38:30,935 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:38:30,935 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-29 22:38:30,935 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:38:30,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:38:30,936 INFO L82 PathProgramCache]: Analyzing trace with hash 191299371, now seen corresponding path program 1 times [2020-11-29 22:38:30,936 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:38:30,936 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586154946] [2020-11-29 22:38:30,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:38:31,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:38:31,026 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:38:31,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:38:31,091 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:38:31,147 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:38:31,148 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 22:38:31,148 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-29 22:38:31,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 10:38:31 BoogieIcfgContainer [2020-11-29 22:38:31,311 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 22:38:31,311 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 22:38:31,311 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 22:38:31,312 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 22:38:31,312 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:38:28" (3/4) ... [2020-11-29 22:38:31,314 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-29 22:38:31,422 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_e066b633-46a4-488e-89bf-d68693ea55ab/bin/uautomizer/witness.graphml [2020-11-29 22:38:31,425 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 22:38:31,427 INFO L168 Benchmark]: Toolchain (without parser) took 4544.62 ms. Allocated memory was 86.0 MB in the beginning and 125.8 MB in the end (delta: 39.8 MB). Free memory was 51.3 MB in the beginning and 83.4 MB in the end (delta: -32.1 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. [2020-11-29 22:38:31,427 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 86.0 MB. Free memory was 59.3 MB in the beginning and 59.3 MB in the end (delta: 30.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:38:31,428 INFO L168 Benchmark]: CACSL2BoogieTranslator took 606.84 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 51.1 MB in the beginning and 71.9 MB in the end (delta: -20.8 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. [2020-11-29 22:38:31,429 INFO L168 Benchmark]: Boogie Procedure Inliner took 88.06 ms. Allocated memory is still 104.9 MB. Free memory was 71.9 MB in the beginning and 68.9 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:38:31,429 INFO L168 Benchmark]: Boogie Preprocessor took 65.05 ms. Allocated memory is still 104.9 MB. Free memory was 68.9 MB in the beginning and 66.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:38:31,429 INFO L168 Benchmark]: RCFGBuilder took 1012.29 ms. Allocated memory is still 104.9 MB. Free memory was 66.8 MB in the beginning and 72.2 MB in the end (delta: -5.5 MB). Peak memory consumption was 20.2 MB. Max. memory is 16.1 GB. [2020-11-29 22:38:31,430 INFO L168 Benchmark]: TraceAbstraction took 2646.96 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 71.7 MB in the beginning and 96.0 MB in the end (delta: -24.3 MB). Peak memory consumption was 61.2 MB. Max. memory is 16.1 GB. [2020-11-29 22:38:31,430 INFO L168 Benchmark]: Witness Printer took 113.69 ms. Allocated memory is still 125.8 MB. Free memory was 96.0 MB in the beginning and 83.4 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 22:38:31,434 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 86.0 MB. Free memory was 59.3 MB in the beginning and 59.3 MB in the end (delta: 30.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 606.84 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 51.1 MB in the beginning and 71.9 MB in the end (delta: -20.8 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 88.06 ms. Allocated memory is still 104.9 MB. Free memory was 71.9 MB in the beginning and 68.9 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 65.05 ms. Allocated memory is still 104.9 MB. Free memory was 68.9 MB in the beginning and 66.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1012.29 ms. Allocated memory is still 104.9 MB. Free memory was 66.8 MB in the beginning and 72.2 MB in the end (delta: -5.5 MB). Peak memory consumption was 20.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2646.96 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 71.7 MB in the beginning and 96.0 MB in the end (delta: -24.3 MB). Peak memory consumption was 61.2 MB. Max. memory is 16.1 GB. * Witness Printer took 113.69 ms. Allocated memory is still 125.8 MB. Free memory was 96.0 MB in the beginning and 83.4 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L49] int waterLevel = 1; [L50] int methaneLevelCritical = 0; [L252] int pumpRunning = 0; [L253] int systemActive = 1; [L457] int cleanupTimeShifts = 4; [L722] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L530] int retValue_acc ; [L531] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L448] int retValue_acc ; [L451] retValue_acc = 1 [L452] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L537] tmp = valid_product() [L539] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L183] int splverifierCounter ; [L184] int tmp ; [L185] int tmp___0 ; [L186] int tmp___1 ; [L187] int tmp___2 ; [L190] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L192] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L194] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L200] tmp = __VERIFIER_nondet_int() [L202] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L67] COND TRUE waterLevel < 2 [L68] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L210] tmp___0 = __VERIFIER_nondet_int() [L212] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L79] COND FALSE !(\read(methaneLevelCritical)) [L82] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L220] tmp___2 = __VERIFIER_nondet_int() [L222] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L259] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L266] COND TRUE \read(systemActive) [L288] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L291] COND TRUE ! pumpRunning [L385] int retValue_acc ; [L386] int tmp ; [L387] int tmp___0 ; [L129] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L132] COND FALSE !(waterLevel < 2) [L136] retValue_acc = 0 [L137] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L391] tmp = isHighWaterSensorDry() [L393] COND FALSE !(\read(tmp)) [L396] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L398] retValue_acc = tmp___0 [L399] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L293] tmp = isHighWaterLevel() [L295] COND TRUE \read(tmp) [L316] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L154] int tmp ; [L155] int tmp___0 ; [L88] int retValue_acc ; [L91] retValue_acc = methaneLevelCritical [L92] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L159] tmp = isMethaneLevelCritical() [L161] COND TRUE \read(tmp) [L340] int retValue_acc ; [L343] retValue_acc = pumpRunning [L344] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L163] tmp___0 = isPumpRunning() [L165] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L3] __assert_fail("0", "minepump_spec1_product35.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 83 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.4s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 626 SDtfs, 878 SDslu, 958 SDs, 0 SdLazy, 119 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=306occurred in iteration=9, 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, 9 MinimizatonAttempts, 874 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 250 NumberOfCodeBlocks, 250 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 210 ConstructedInterpolants, 0 QuantifiedInterpolants, 11056 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...