./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product38.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_fdf575a6-81b2-4f0c-9a34-b0c880a635d3/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_fdf575a6-81b2-4f0c-9a34-b0c880a635d3/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_fdf575a6-81b2-4f0c-9a34-b0c880a635d3/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_fdf575a6-81b2-4f0c-9a34-b0c880a635d3/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product38.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_fdf575a6-81b2-4f0c-9a34-b0c880a635d3/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_fdf575a6-81b2-4f0c-9a34-b0c880a635d3/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 1793ccd9e2f375623df96533ad239f61347f357b .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:12:57,539 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:12:57,542 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:12:57,601 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:12:57,602 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:12:57,604 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:12:57,606 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:12:57,608 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:12:57,613 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:12:57,619 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:12:57,621 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:12:57,623 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:12:57,625 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:12:57,627 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:12:57,629 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:12:57,632 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:12:57,633 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:12:57,635 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:12:57,639 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:12:57,648 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:12:57,650 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:12:57,652 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:12:57,654 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:12:57,655 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:12:57,666 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:12:57,666 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:12:57,667 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:12:57,669 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:12:57,670 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:12:57,671 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:12:57,672 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:12:57,673 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:12:57,675 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:12:57,677 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:12:57,678 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:12:57,678 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:12:57,679 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:12:57,680 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:12:57,680 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:12:57,681 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:12:57,682 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:12:57,686 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_fdf575a6-81b2-4f0c-9a34-b0c880a635d3/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-30 00:12:57,726 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:12:57,726 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:12:57,729 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:12:57,729 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:12:57,729 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:12:57,729 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:12:57,730 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:12:57,730 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:12:57,730 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:12:57,730 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:12:57,732 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 00:12:57,732 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:12:57,732 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 00:12:57,732 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:12:57,733 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:12:57,733 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:12:57,733 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 00:12:57,733 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:12:57,734 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:12:57,734 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:12:57,734 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 00:12:57,734 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:12:57,735 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:12:57,735 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:12:57,735 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 00:12:57,735 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:12:57,736 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 00:12:57,736 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 00:12:57,736 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:12:57,736 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_fdf575a6-81b2-4f0c-9a34-b0c880a635d3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_fdf575a6-81b2-4f0c-9a34-b0c880a635d3/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1793ccd9e2f375623df96533ad239f61347f357b [2020-11-30 00:12:58,067 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:12:58,094 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:12:58,098 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:12:58,099 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:12:58,100 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:12:58,101 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_fdf575a6-81b2-4f0c-9a34-b0c880a635d3/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec1_product38.cil.c [2020-11-30 00:12:58,182 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fdf575a6-81b2-4f0c-9a34-b0c880a635d3/bin/uautomizer/data/69988bd73/02f8b603c02543c7bd01f1dd52288980/FLAG4c896d33e [2020-11-30 00:12:58,781 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:12:58,791 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_fdf575a6-81b2-4f0c-9a34-b0c880a635d3/sv-benchmarks/c/product-lines/minepump_spec1_product38.cil.c [2020-11-30 00:12:58,814 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fdf575a6-81b2-4f0c-9a34-b0c880a635d3/bin/uautomizer/data/69988bd73/02f8b603c02543c7bd01f1dd52288980/FLAG4c896d33e [2020-11-30 00:12:59,069 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_fdf575a6-81b2-4f0c-9a34-b0c880a635d3/bin/uautomizer/data/69988bd73/02f8b603c02543c7bd01f1dd52288980 [2020-11-30 00:12:59,072 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:12:59,075 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:12:59,079 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:12:59,079 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:12:59,083 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:12:59,085 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:12:59" (1/1) ... [2020-11-30 00:12:59,092 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a1ebd2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:12:59, skipping insertion in model container [2020-11-30 00:12:59,092 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:12:59" (1/1) ... [2020-11-30 00:12:59,100 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:12:59,178 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:12:59,627 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:12:59,639 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:12:59,770 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:12:59,819 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:12:59,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:12:59 WrapperNode [2020-11-30 00:12:59,822 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:12:59,823 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:12:59,824 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:12:59,824 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:12:59,833 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:12:59" (1/1) ... [2020-11-30 00:12:59,873 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:12:59" (1/1) ... [2020-11-30 00:12:59,938 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:12:59,939 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:12:59,939 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:12:59,940 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:12:59,950 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:12:59" (1/1) ... [2020-11-30 00:12:59,950 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:12:59" (1/1) ... [2020-11-30 00:12:59,956 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:12:59" (1/1) ... [2020-11-30 00:12:59,971 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:12:59" (1/1) ... [2020-11-30 00:12:59,985 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:12:59" (1/1) ... [2020-11-30 00:12:59,993 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:12:59" (1/1) ... [2020-11-30 00:12:59,996 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:12:59" (1/1) ... [2020-11-30 00:13:00,001 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:13:00,002 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:13:00,003 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:13:00,003 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:13:00,004 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:12:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fdf575a6-81b2-4f0c-9a34-b0c880a635d3/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:13:00,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:13:00,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:13:00,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:13:00,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:13:01,388 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:13:01,389 INFO L298 CfgBuilder]: Removed 164 assume(true) statements. [2020-11-30 00:13:01,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:13:01 BoogieIcfgContainer [2020-11-30 00:13:01,392 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:13:01,395 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 00:13:01,396 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 00:13:01,400 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 00:13:01,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 12:12:59" (1/3) ... [2020-11-30 00:13:01,402 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c65d192 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:13:01, skipping insertion in model container [2020-11-30 00:13:01,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:12:59" (2/3) ... [2020-11-30 00:13:01,402 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c65d192 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:13:01, skipping insertion in model container [2020-11-30 00:13:01,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:13:01" (3/3) ... [2020-11-30 00:13:01,404 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product38.cil.c [2020-11-30 00:13:01,417 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 00:13:01,422 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-30 00:13:01,435 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-30 00:13:01,480 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 00:13:01,480 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 00:13:01,480 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 00:13:01,481 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:13:01,481 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:13:01,481 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 00:13:01,481 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:13:01,482 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 00:13:01,510 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states. [2020-11-30 00:13:01,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-30 00:13:01,519 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:13:01,520 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:13:01,520 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:13:01,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:13:01,527 INFO L82 PathProgramCache]: Analyzing trace with hash 402182137, now seen corresponding path program 1 times [2020-11-30 00:13:01,537 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:13:01,537 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681924819] [2020-11-30 00:13:01,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:13:01,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:13:01,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:13:01,899 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681924819] [2020-11-30 00:13:01,900 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:13:01,901 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 00:13:01,902 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995306226] [2020-11-30 00:13:01,907 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 00:13:01,908 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:13:01,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 00:13:01,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 00:13:01,924 INFO L87 Difference]: Start difference. First operand 114 states. Second operand 2 states. [2020-11-30 00:13:01,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:13:01,977 INFO L93 Difference]: Finished difference Result 219 states and 332 transitions. [2020-11-30 00:13:01,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 00:13:01,979 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-11-30 00:13:01,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:13:01,989 INFO L225 Difference]: With dead ends: 219 [2020-11-30 00:13:01,990 INFO L226 Difference]: Without dead ends: 107 [2020-11-30 00:13:01,993 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 00:13:02,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-11-30 00:13:02,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2020-11-30 00:13:02,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-11-30 00:13:02,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 156 transitions. [2020-11-30 00:13:02,068 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 156 transitions. Word has length 16 [2020-11-30 00:13:02,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:13:02,069 INFO L481 AbstractCegarLoop]: Abstraction has 107 states and 156 transitions. [2020-11-30 00:13:02,069 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 00:13:02,070 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 156 transitions. [2020-11-30 00:13:02,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-30 00:13:02,074 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:13:02,074 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:13:02,076 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 00:13:02,077 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:13:02,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:13:02,078 INFO L82 PathProgramCache]: Analyzing trace with hash -644574760, now seen corresponding path program 1 times [2020-11-30 00:13:02,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:13:02,079 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441518948] [2020-11-30 00:13:02,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:13:02,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:13:02,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:13:02,253 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441518948] [2020-11-30 00:13:02,253 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:13:02,253 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:13:02,254 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44150757] [2020-11-30 00:13:02,255 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:13:02,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:13:02,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:13:02,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:13:02,257 INFO L87 Difference]: Start difference. First operand 107 states and 156 transitions. Second operand 3 states. [2020-11-30 00:13:02,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:13:02,273 INFO L93 Difference]: Finished difference Result 107 states and 156 transitions. [2020-11-30 00:13:02,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:13:02,278 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-11-30 00:13:02,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:13:02,282 INFO L225 Difference]: With dead ends: 107 [2020-11-30 00:13:02,282 INFO L226 Difference]: Without dead ends: 45 [2020-11-30 00:13:02,283 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:13:02,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-11-30 00:13:02,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-11-30 00:13:02,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-11-30 00:13:02,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 65 transitions. [2020-11-30 00:13:02,290 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 65 transitions. Word has length 17 [2020-11-30 00:13:02,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:13:02,291 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 65 transitions. [2020-11-30 00:13:02,291 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:13:02,291 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 65 transitions. [2020-11-30 00:13:02,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-30 00:13:02,296 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:13:02,296 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:13:02,297 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 00:13:02,298 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:13:02,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:13:02,299 INFO L82 PathProgramCache]: Analyzing trace with hash 1939738244, now seen corresponding path program 1 times [2020-11-30 00:13:02,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:13:02,300 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496856148] [2020-11-30 00:13:02,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:13:02,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:13:02,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:13:02,447 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496856148] [2020-11-30 00:13:02,447 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:13:02,447 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:13:02,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490804974] [2020-11-30 00:13:02,448 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:13:02,448 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:13:02,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:13:02,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:13:02,450 INFO L87 Difference]: Start difference. First operand 45 states and 65 transitions. Second operand 3 states. [2020-11-30 00:13:02,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:13:02,485 INFO L93 Difference]: Finished difference Result 84 states and 124 transitions. [2020-11-30 00:13:02,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:13:02,486 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-11-30 00:13:02,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:13:02,487 INFO L225 Difference]: With dead ends: 84 [2020-11-30 00:13:02,487 INFO L226 Difference]: Without dead ends: 45 [2020-11-30 00:13:02,488 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:13:02,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-11-30 00:13:02,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-11-30 00:13:02,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-11-30 00:13:02,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 64 transitions. [2020-11-30 00:13:02,494 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 64 transitions. Word has length 22 [2020-11-30 00:13:02,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:13:02,495 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 64 transitions. [2020-11-30 00:13:02,495 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:13:02,495 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 64 transitions. [2020-11-30 00:13:02,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-30 00:13:02,496 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:13:02,497 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] [2020-11-30 00:13:02,497 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-30 00:13:02,497 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:13:02,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:13:02,498 INFO L82 PathProgramCache]: Analyzing trace with hash -1547834963, now seen corresponding path program 1 times [2020-11-30 00:13:02,498 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:13:02,498 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494196663] [2020-11-30 00:13:02,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:13:02,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:13:02,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:13:02,619 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494196663] [2020-11-30 00:13:02,619 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:13:02,619 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 00:13:02,619 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738533037] [2020-11-30 00:13:02,620 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:13:02,620 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:13:02,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:13:02,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:13:02,621 INFO L87 Difference]: Start difference. First operand 45 states and 64 transitions. Second operand 3 states. [2020-11-30 00:13:02,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:13:02,700 INFO L93 Difference]: Finished difference Result 105 states and 152 transitions. [2020-11-30 00:13:02,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:13:02,701 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-11-30 00:13:02,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:13:02,702 INFO L225 Difference]: With dead ends: 105 [2020-11-30 00:13:02,702 INFO L226 Difference]: Without dead ends: 66 [2020-11-30 00:13:02,703 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:13:02,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-11-30 00:13:02,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 64. [2020-11-30 00:13:02,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-11-30 00:13:02,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 90 transitions. [2020-11-30 00:13:02,714 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 90 transitions. Word has length 24 [2020-11-30 00:13:02,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:13:02,714 INFO L481 AbstractCegarLoop]: Abstraction has 64 states and 90 transitions. [2020-11-30 00:13:02,714 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:13:02,715 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 90 transitions. [2020-11-30 00:13:02,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-30 00:13:02,716 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:13:02,716 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] [2020-11-30 00:13:02,716 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-30 00:13:02,716 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:13:02,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:13:02,717 INFO L82 PathProgramCache]: Analyzing trace with hash -1827782978, now seen corresponding path program 1 times [2020-11-30 00:13:02,717 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:13:02,718 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513622841] [2020-11-30 00:13:02,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:13:02,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:13:02,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:13:02,835 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513622841] [2020-11-30 00:13:02,836 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:13:02,836 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 00:13:02,836 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073071477] [2020-11-30 00:13:02,837 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 00:13:02,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:13:02,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 00:13:02,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:13:02,838 INFO L87 Difference]: Start difference. First operand 64 states and 90 transitions. Second operand 5 states. [2020-11-30 00:13:03,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:13:03,000 INFO L93 Difference]: Finished difference Result 171 states and 239 transitions. [2020-11-30 00:13:03,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 00:13:03,002 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-11-30 00:13:03,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:13:03,003 INFO L225 Difference]: With dead ends: 171 [2020-11-30 00:13:03,004 INFO L226 Difference]: Without dead ends: 113 [2020-11-30 00:13:03,005 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-30 00:13:03,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-11-30 00:13:03,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 70. [2020-11-30 00:13:03,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-11-30 00:13:03,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 96 transitions. [2020-11-30 00:13:03,033 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 96 transitions. Word has length 30 [2020-11-30 00:13:03,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:13:03,033 INFO L481 AbstractCegarLoop]: Abstraction has 70 states and 96 transitions. [2020-11-30 00:13:03,033 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 00:13:03,033 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 96 transitions. [2020-11-30 00:13:03,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-30 00:13:03,034 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:13:03,035 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] [2020-11-30 00:13:03,035 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-30 00:13:03,035 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:13:03,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:13:03,036 INFO L82 PathProgramCache]: Analyzing trace with hash 834728065, now seen corresponding path program 1 times [2020-11-30 00:13:03,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:13:03,036 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342236385] [2020-11-30 00:13:03,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:13:03,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:13:03,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:13:03,252 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342236385] [2020-11-30 00:13:03,252 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:13:03,252 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:13:03,253 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053986287] [2020-11-30 00:13:03,253 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 00:13:03,253 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:13:03,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 00:13:03,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:13:03,254 INFO L87 Difference]: Start difference. First operand 70 states and 96 transitions. Second operand 5 states. [2020-11-30 00:13:03,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:13:03,474 INFO L93 Difference]: Finished difference Result 344 states and 483 transitions. [2020-11-30 00:13:03,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-30 00:13:03,475 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-11-30 00:13:03,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:13:03,478 INFO L225 Difference]: With dead ends: 344 [2020-11-30 00:13:03,479 INFO L226 Difference]: Without dead ends: 280 [2020-11-30 00:13:03,480 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-30 00:13:03,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2020-11-30 00:13:03,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 128. [2020-11-30 00:13:03,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-11-30 00:13:03,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 175 transitions. [2020-11-30 00:13:03,505 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 175 transitions. Word has length 30 [2020-11-30 00:13:03,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:13:03,505 INFO L481 AbstractCegarLoop]: Abstraction has 128 states and 175 transitions. [2020-11-30 00:13:03,505 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 00:13:03,506 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 175 transitions. [2020-11-30 00:13:03,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-30 00:13:03,507 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:13:03,508 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] [2020-11-30 00:13:03,508 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-30 00:13:03,508 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:13:03,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:13:03,509 INFO L82 PathProgramCache]: Analyzing trace with hash 1506496567, now seen corresponding path program 1 times [2020-11-30 00:13:03,509 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:13:03,510 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139671226] [2020-11-30 00:13:03,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:13:03,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:13:03,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:13:03,659 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139671226] [2020-11-30 00:13:03,660 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:13:03,660 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:13:03,660 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240020466] [2020-11-30 00:13:03,660 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 00:13:03,661 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:13:03,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 00:13:03,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:13:03,662 INFO L87 Difference]: Start difference. First operand 128 states and 175 transitions. Second operand 5 states. [2020-11-30 00:13:03,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:13:03,914 INFO L93 Difference]: Finished difference Result 366 states and 502 transitions. [2020-11-30 00:13:03,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-30 00:13:03,915 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2020-11-30 00:13:03,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:13:03,918 INFO L225 Difference]: With dead ends: 366 [2020-11-30 00:13:03,919 INFO L226 Difference]: Without dead ends: 364 [2020-11-30 00:13:03,920 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-30 00:13:03,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2020-11-30 00:13:03,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 128. [2020-11-30 00:13:03,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-11-30 00:13:03,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 174 transitions. [2020-11-30 00:13:03,964 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 174 transitions. Word has length 31 [2020-11-30 00:13:03,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:13:03,965 INFO L481 AbstractCegarLoop]: Abstraction has 128 states and 174 transitions. [2020-11-30 00:13:03,965 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 00:13:03,965 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 174 transitions. [2020-11-30 00:13:03,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-30 00:13:03,974 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:13:03,975 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] [2020-11-30 00:13:03,975 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-30 00:13:03,975 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:13:03,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:13:03,976 INFO L82 PathProgramCache]: Analyzing trace with hash -1549041486, now seen corresponding path program 1 times [2020-11-30 00:13:03,976 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:13:03,977 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349043680] [2020-11-30 00:13:03,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:13:04,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:13:04,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:13:04,088 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349043680] [2020-11-30 00:13:04,088 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:13:04,088 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 00:13:04,088 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409110105] [2020-11-30 00:13:04,089 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 00:13:04,089 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:13:04,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 00:13:04,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:13:04,090 INFO L87 Difference]: Start difference. First operand 128 states and 174 transitions. Second operand 5 states. [2020-11-30 00:13:04,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:13:04,253 INFO L93 Difference]: Finished difference Result 346 states and 466 transitions. [2020-11-30 00:13:04,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 00:13:04,254 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2020-11-30 00:13:04,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:13:04,257 INFO L225 Difference]: With dead ends: 346 [2020-11-30 00:13:04,257 INFO L226 Difference]: Without dead ends: 224 [2020-11-30 00:13:04,260 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-30 00:13:04,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2020-11-30 00:13:04,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 136. [2020-11-30 00:13:04,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-11-30 00:13:04,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 182 transitions. [2020-11-30 00:13:04,307 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 182 transitions. Word has length 31 [2020-11-30 00:13:04,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:13:04,308 INFO L481 AbstractCegarLoop]: Abstraction has 136 states and 182 transitions. [2020-11-30 00:13:04,308 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 00:13:04,308 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 182 transitions. [2020-11-30 00:13:04,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-30 00:13:04,311 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:13:04,312 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] [2020-11-30 00:13:04,312 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-30 00:13:04,313 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:13:04,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:13:04,314 INFO L82 PathProgramCache]: Analyzing trace with hash -1290876048, now seen corresponding path program 1 times [2020-11-30 00:13:04,314 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:13:04,315 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67442601] [2020-11-30 00:13:04,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:13:04,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:13:04,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:13:04,382 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67442601] [2020-11-30 00:13:04,382 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:13:04,382 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 00:13:04,383 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253590526] [2020-11-30 00:13:04,383 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:13:04,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:13:04,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:13:04,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:13:04,384 INFO L87 Difference]: Start difference. First operand 136 states and 182 transitions. Second operand 3 states. [2020-11-30 00:13:04,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:13:04,431 INFO L93 Difference]: Finished difference Result 316 states and 422 transitions. [2020-11-30 00:13:04,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:13:04,432 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2020-11-30 00:13:04,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:13:04,433 INFO L225 Difference]: With dead ends: 316 [2020-11-30 00:13:04,433 INFO L226 Difference]: Without dead ends: 186 [2020-11-30 00:13:04,434 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:13:04,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2020-11-30 00:13:04,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 186. [2020-11-30 00:13:04,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2020-11-30 00:13:04,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 242 transitions. [2020-11-30 00:13:04,456 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 242 transitions. Word has length 31 [2020-11-30 00:13:04,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:13:04,457 INFO L481 AbstractCegarLoop]: Abstraction has 186 states and 242 transitions. [2020-11-30 00:13:04,457 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:13:04,457 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 242 transitions. [2020-11-30 00:13:04,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-30 00:13:04,458 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:13:04,459 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, 1] [2020-11-30 00:13:04,459 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-30 00:13:04,459 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:13:04,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:13:04,460 INFO L82 PathProgramCache]: Analyzing trace with hash 891331378, now seen corresponding path program 1 times [2020-11-30 00:13:04,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:13:04,460 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254795559] [2020-11-30 00:13:04,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:13:04,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:13:04,554 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:13:04,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:13:04,645 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:13:04,711 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:13:04,712 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 00:13:04,712 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-30 00:13:04,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 12:13:04 BoogieIcfgContainer [2020-11-30 00:13:04,862 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 00:13:04,863 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:13:04,863 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:13:04,864 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:13:04,864 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:13:01" (3/4) ... [2020-11-30 00:13:04,870 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-30 00:13:04,995 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_fdf575a6-81b2-4f0c-9a34-b0c880a635d3/bin/uautomizer/witness.graphml [2020-11-30 00:13:04,995 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:13:04,998 INFO L168 Benchmark]: Toolchain (without parser) took 5921.67 ms. Allocated memory was 146.8 MB in the beginning and 178.3 MB in the end (delta: 31.5 MB). Free memory was 119.0 MB in the beginning and 117.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 33.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:13:04,998 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 92.3 MB. Free memory is still 50.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:13:04,999 INFO L168 Benchmark]: CACSL2BoogieTranslator took 743.55 ms. Allocated memory is still 146.8 MB. Free memory was 119.0 MB in the beginning and 113.1 MB in the end (delta: 5.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:13:04,999 INFO L168 Benchmark]: Boogie Procedure Inliner took 115.07 ms. Allocated memory is still 146.8 MB. Free memory was 113.1 MB in the beginning and 109.4 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:13:05,000 INFO L168 Benchmark]: Boogie Preprocessor took 62.26 ms. Allocated memory is still 146.8 MB. Free memory was 109.4 MB in the beginning and 106.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:13:05,001 INFO L168 Benchmark]: RCFGBuilder took 1390.38 ms. Allocated memory is still 146.8 MB. Free memory was 106.9 MB in the beginning and 105.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 50.3 MB. Max. memory is 16.1 GB. [2020-11-30 00:13:05,001 INFO L168 Benchmark]: TraceAbstraction took 3467.18 ms. Allocated memory was 146.8 MB in the beginning and 178.3 MB in the end (delta: 31.5 MB). Free memory was 105.6 MB in the beginning and 130.8 MB in the end (delta: -25.2 MB). Peak memory consumption was 75.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:13:05,002 INFO L168 Benchmark]: Witness Printer took 132.17 ms. Allocated memory is still 178.3 MB. Free memory was 130.8 MB in the beginning and 117.2 MB in the end (delta: 13.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-30 00:13:05,004 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 92.3 MB. Free memory is still 50.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 743.55 ms. Allocated memory is still 146.8 MB. Free memory was 119.0 MB in the beginning and 113.1 MB in the end (delta: 5.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 115.07 ms. Allocated memory is still 146.8 MB. Free memory was 113.1 MB in the beginning and 109.4 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 62.26 ms. Allocated memory is still 146.8 MB. Free memory was 109.4 MB in the beginning and 106.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1390.38 ms. Allocated memory is still 146.8 MB. Free memory was 106.9 MB in the beginning and 105.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 50.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3467.18 ms. Allocated memory was 146.8 MB in the beginning and 178.3 MB in the end (delta: 31.5 MB). Free memory was 105.6 MB in the beginning and 130.8 MB in the end (delta: -25.2 MB). Peak memory consumption was 75.1 MB. Max. memory is 16.1 GB. * Witness Printer took 132.17 ms. Allocated memory is still 178.3 MB. Free memory was 130.8 MB in the beginning and 117.2 MB in the end (delta: 13.6 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: [L42] int cleanupTimeShifts = 4; [L379] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L582] int pumpRunning = 0; [L583] int systemActive = 1; [L845] int waterLevel = 1; [L846] int methaneLevelCritical = 0; 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] [L172] int retValue_acc ; [L175] retValue_acc = 1 [L176] 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] [L769] int splverifierCounter ; [L770] int tmp ; [L771] int tmp___0 ; [L772] int tmp___1 ; [L773] int tmp___2 ; [L776] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L778] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L780] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L786] tmp = __VERIFIER_nondet_int() [L788] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L863] COND TRUE waterLevel < 2 [L864] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L796] tmp___0 = __VERIFIER_nondet_int() [L798] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L875] COND FALSE !(\read(methaneLevelCritical)) [L878] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L806] tmp___2 = __VERIFIER_nondet_int() [L808] COND TRUE \read(tmp___2) [L763] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L589] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L596] COND TRUE \read(systemActive) [L644] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L647] COND FALSE !(\read(pumpRunning)) [L618] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L621] COND TRUE ! pumpRunning [L741] int retValue_acc ; [L742] int tmp ; [L743] int tmp___0 ; [L925] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L928] COND FALSE !(waterLevel < 2) [L932] retValue_acc = 0 [L933] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L747] tmp = isHighWaterSensorDry() [L749] COND FALSE !(\read(tmp)) [L752] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L754] retValue_acc = tmp___0 [L755] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L623] tmp = isHighWaterLevel() [L625] COND TRUE \read(tmp) [L672] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L185] int tmp ; [L186] int tmp___0 ; [L884] int retValue_acc ; [L887] retValue_acc = methaneLevelCritical [L888] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L190] tmp = isMethaneLevelCritical() [L192] COND TRUE \read(tmp) [L696] int retValue_acc ; [L699] retValue_acc = pumpRunning [L700] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L194] tmp___0 = isPumpRunning() [L196] 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_product38.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, 114 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.2s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 785 SDtfs, 950 SDslu, 979 SDs, 0 SdLazy, 149 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=186occurred 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, 521 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 264 NumberOfCodeBlocks, 264 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 223 ConstructedInterpolants, 0 QuantifiedInterpolants, 11625 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...