./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product44.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_3c2f1527-f9c8-4aca-93ce-34aad16f1d9d/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_3c2f1527-f9c8-4aca-93ce-34aad16f1d9d/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3c2f1527-f9c8-4aca-93ce-34aad16f1d9d/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3c2f1527-f9c8-4aca-93ce-34aad16f1d9d/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product44.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3c2f1527-f9c8-4aca-93ce-34aad16f1d9d/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3c2f1527-f9c8-4aca-93ce-34aad16f1d9d/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 41f42675c60ac44d105cf71847968c4edf76aefd ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 01:10:20,811 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:10:20,813 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:10:20,876 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:10:20,877 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:10:20,884 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:10:20,888 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:10:20,893 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:10:20,897 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:10:20,907 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:10:20,909 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:10:20,912 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:10:20,913 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:10:20,917 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:10:20,919 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:10:20,923 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:10:20,925 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:10:20,931 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:10:20,936 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:10:20,947 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:10:20,951 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:10:20,952 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:10:20,956 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:10:20,957 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:10:20,962 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:10:20,962 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:10:20,963 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:10:20,966 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:10:20,967 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:10:20,969 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:10:20,969 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:10:20,972 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:10:20,974 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:10:20,976 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:10:20,978 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:10:20,979 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:10:20,980 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:10:20,980 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:10:20,981 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:10:20,982 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:10:20,983 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:10:20,986 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3c2f1527-f9c8-4aca-93ce-34aad16f1d9d/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-30 01:10:21,035 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:10:21,038 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:10:21,040 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:10:21,041 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:10:21,041 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:10:21,042 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:10:21,042 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:10:21,043 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:10:21,043 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:10:21,043 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:10:21,045 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:10:21,045 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:10:21,046 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:10:21,046 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:10:21,046 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:10:21,046 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:10:21,047 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:10:21,047 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:10:21,047 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:10:21,048 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:10:21,048 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:10:21,048 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:10:21,049 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:10:21,049 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:10:21,049 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:10:21,050 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 01:10:21,050 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 01:10:21,050 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:10:21,051 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:10:21,051 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_3c2f1527-f9c8-4aca-93ce-34aad16f1d9d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_3c2f1527-f9c8-4aca-93ce-34aad16f1d9d/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 41f42675c60ac44d105cf71847968c4edf76aefd [2020-11-30 01:10:21,469 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:10:21,517 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:10:21,523 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:10:21,525 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:10:21,526 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:10:21,528 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3c2f1527-f9c8-4aca-93ce-34aad16f1d9d/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec2_product44.cil.c [2020-11-30 01:10:21,643 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3c2f1527-f9c8-4aca-93ce-34aad16f1d9d/bin/uautomizer/data/6958b6cd4/c756bf2427d24411aac79c148f829272/FLAG455164dfc [2020-11-30 01:10:22,282 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:10:22,283 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3c2f1527-f9c8-4aca-93ce-34aad16f1d9d/sv-benchmarks/c/product-lines/minepump_spec2_product44.cil.c [2020-11-30 01:10:22,308 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3c2f1527-f9c8-4aca-93ce-34aad16f1d9d/bin/uautomizer/data/6958b6cd4/c756bf2427d24411aac79c148f829272/FLAG455164dfc [2020-11-30 01:10:22,578 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3c2f1527-f9c8-4aca-93ce-34aad16f1d9d/bin/uautomizer/data/6958b6cd4/c756bf2427d24411aac79c148f829272 [2020-11-30 01:10:22,582 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:10:22,584 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:10:22,587 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:10:22,588 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:10:22,592 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:10:22,593 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:10:22" (1/1) ... [2020-11-30 01:10:22,596 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66ade22d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:10:22, skipping insertion in model container [2020-11-30 01:10:22,596 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:10:22" (1/1) ... [2020-11-30 01:10:22,606 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:10:22,692 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:10:23,142 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:10:23,155 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:10:23,264 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:10:23,315 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:10:23,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:10:23 WrapperNode [2020-11-30 01:10:23,317 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:10:23,320 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:10:23,320 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:10:23,320 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:10:23,333 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:10:23" (1/1) ... [2020-11-30 01:10:23,356 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:10:23" (1/1) ... [2020-11-30 01:10:23,419 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:10:23,420 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:10:23,420 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:10:23,421 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:10:23,432 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:10:23" (1/1) ... [2020-11-30 01:10:23,433 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:10:23" (1/1) ... [2020-11-30 01:10:23,439 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:10:23" (1/1) ... [2020-11-30 01:10:23,440 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:10:23" (1/1) ... [2020-11-30 01:10:23,469 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:10:23" (1/1) ... [2020-11-30 01:10:23,500 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:10:23" (1/1) ... [2020-11-30 01:10:23,504 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:10:23" (1/1) ... [2020-11-30 01:10:23,509 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:10:23,511 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:10:23,511 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:10:23,511 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:10:23,512 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:10:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3c2f1527-f9c8-4aca-93ce-34aad16f1d9d/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:10:23,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:10:23,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 01:10:23,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:10:23,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:10:24,817 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:10:24,818 INFO L298 CfgBuilder]: Removed 128 assume(true) statements. [2020-11-30 01:10:24,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:10:24 BoogieIcfgContainer [2020-11-30 01:10:24,821 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:10:24,822 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 01:10:24,823 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 01:10:24,827 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 01:10:24,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 01:10:22" (1/3) ... [2020-11-30 01:10:24,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a2123e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:10:24, skipping insertion in model container [2020-11-30 01:10:24,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:10:23" (2/3) ... [2020-11-30 01:10:24,830 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a2123e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:10:24, skipping insertion in model container [2020-11-30 01:10:24,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:10:24" (3/3) ... [2020-11-30 01:10:24,832 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product44.cil.c [2020-11-30 01:10:24,847 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 01:10:24,853 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-30 01:10:24,869 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-30 01:10:24,900 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 01:10:24,901 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 01:10:24,901 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 01:10:24,901 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:10:24,901 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:10:24,901 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 01:10:24,902 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:10:24,902 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 01:10:24,927 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states. [2020-11-30 01:10:24,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-30 01:10:24,938 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:10:24,939 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:10:24,940 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:10:24,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:10:24,948 INFO L82 PathProgramCache]: Analyzing trace with hash 578880292, now seen corresponding path program 1 times [2020-11-30 01:10:24,960 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:10:24,960 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714700465] [2020-11-30 01:10:24,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:10:25,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:10:25,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:10:25,310 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714700465] [2020-11-30 01:10:25,312 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:10:25,312 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 01:10:25,313 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319251733] [2020-11-30 01:10:25,319 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 01:10:25,320 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:10:25,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 01:10:25,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 01:10:25,337 INFO L87 Difference]: Start difference. First operand 96 states. Second operand 2 states. [2020-11-30 01:10:25,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:10:25,401 INFO L93 Difference]: Finished difference Result 182 states and 273 transitions. [2020-11-30 01:10:25,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 01:10:25,402 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-11-30 01:10:25,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:10:25,419 INFO L225 Difference]: With dead ends: 182 [2020-11-30 01:10:25,419 INFO L226 Difference]: Without dead ends: 89 [2020-11-30 01:10:25,444 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 01:10:25,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-11-30 01:10:25,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2020-11-30 01:10:25,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-11-30 01:10:25,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 127 transitions. [2020-11-30 01:10:25,501 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 127 transitions. Word has length 18 [2020-11-30 01:10:25,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:10:25,501 INFO L481 AbstractCegarLoop]: Abstraction has 89 states and 127 transitions. [2020-11-30 01:10:25,502 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 01:10:25,502 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 127 transitions. [2020-11-30 01:10:25,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-30 01:10:25,503 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:10:25,503 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:10:25,504 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 01:10:25,504 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:10:25,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:10:25,505 INFO L82 PathProgramCache]: Analyzing trace with hash 360044323, now seen corresponding path program 1 times [2020-11-30 01:10:25,506 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:10:25,506 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691652256] [2020-11-30 01:10:25,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:10:25,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:10:25,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:10:25,683 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691652256] [2020-11-30 01:10:25,683 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:10:25,683 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:10:25,683 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428341611] [2020-11-30 01:10:25,685 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:10:25,685 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:10:25,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:10:25,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:10:25,687 INFO L87 Difference]: Start difference. First operand 89 states and 127 transitions. Second operand 3 states. [2020-11-30 01:10:25,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:10:25,722 INFO L93 Difference]: Finished difference Result 89 states and 127 transitions. [2020-11-30 01:10:25,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:10:25,723 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-11-30 01:10:25,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:10:25,726 INFO L225 Difference]: With dead ends: 89 [2020-11-30 01:10:25,726 INFO L226 Difference]: Without dead ends: 41 [2020-11-30 01:10:25,728 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:10:25,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-11-30 01:10:25,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-11-30 01:10:25,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-11-30 01:10:25,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 58 transitions. [2020-11-30 01:10:25,750 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 58 transitions. Word has length 19 [2020-11-30 01:10:25,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:10:25,751 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 58 transitions. [2020-11-30 01:10:25,751 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:10:25,752 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 58 transitions. [2020-11-30 01:10:25,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-30 01:10:25,754 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:10:25,755 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 01:10:25,756 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 01:10:25,756 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:10:25,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:10:25,760 INFO L82 PathProgramCache]: Analyzing trace with hash -2025304256, now seen corresponding path program 1 times [2020-11-30 01:10:25,760 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:10:25,761 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984551974] [2020-11-30 01:10:25,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:10:25,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:10:25,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:10:25,951 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984551974] [2020-11-30 01:10:25,951 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:10:25,951 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 01:10:25,952 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773537649] [2020-11-30 01:10:25,952 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 01:10:25,952 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:10:25,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 01:10:25,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:10:25,954 INFO L87 Difference]: Start difference. First operand 41 states and 58 transitions. Second operand 5 states. [2020-11-30 01:10:26,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:10:26,052 INFO L93 Difference]: Finished difference Result 99 states and 145 transitions. [2020-11-30 01:10:26,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 01:10:26,053 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-11-30 01:10:26,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:10:26,055 INFO L225 Difference]: With dead ends: 99 [2020-11-30 01:10:26,056 INFO L226 Difference]: Without dead ends: 65 [2020-11-30 01:10:26,058 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 01:10:26,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-11-30 01:10:26,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 61. [2020-11-30 01:10:26,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-11-30 01:10:26,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 89 transitions. [2020-11-30 01:10:26,082 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 89 transitions. Word has length 24 [2020-11-30 01:10:26,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:10:26,084 INFO L481 AbstractCegarLoop]: Abstraction has 61 states and 89 transitions. [2020-11-30 01:10:26,084 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 01:10:26,084 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 89 transitions. [2020-11-30 01:10:26,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-30 01:10:26,087 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:10:26,087 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] [2020-11-30 01:10:26,088 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-30 01:10:26,090 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:10:26,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:10:26,092 INFO L82 PathProgramCache]: Analyzing trace with hash 193545241, now seen corresponding path program 1 times [2020-11-30 01:10:26,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:10:26,092 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326257991] [2020-11-30 01:10:26,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:10:26,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:10:26,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:10:26,170 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326257991] [2020-11-30 01:10:26,171 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:10:26,171 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 01:10:26,171 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263041111] [2020-11-30 01:10:26,172 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:10:26,172 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:10:26,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:10:26,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:10:26,173 INFO L87 Difference]: Start difference. First operand 61 states and 89 transitions. Second operand 3 states. [2020-11-30 01:10:26,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:10:26,251 INFO L93 Difference]: Finished difference Result 137 states and 203 transitions. [2020-11-30 01:10:26,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:10:26,252 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-11-30 01:10:26,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:10:26,253 INFO L225 Difference]: With dead ends: 137 [2020-11-30 01:10:26,253 INFO L226 Difference]: Without dead ends: 83 [2020-11-30 01:10:26,254 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:10:26,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2020-11-30 01:10:26,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 81. [2020-11-30 01:10:26,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-11-30 01:10:26,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 116 transitions. [2020-11-30 01:10:26,268 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 116 transitions. Word has length 25 [2020-11-30 01:10:26,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:10:26,273 INFO L481 AbstractCegarLoop]: Abstraction has 81 states and 116 transitions. [2020-11-30 01:10:26,273 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:10:26,273 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 116 transitions. [2020-11-30 01:10:26,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-30 01:10:26,276 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:10:26,276 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] [2020-11-30 01:10:26,276 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-30 01:10:26,277 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:10:26,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:10:26,277 INFO L82 PathProgramCache]: Analyzing trace with hash 433385865, now seen corresponding path program 1 times [2020-11-30 01:10:26,278 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:10:26,279 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578274884] [2020-11-30 01:10:26,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:10:26,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:10:26,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:10:26,442 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578274884] [2020-11-30 01:10:26,442 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:10:26,443 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 01:10:26,443 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095228083] [2020-11-30 01:10:26,443 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 01:10:26,443 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:10:26,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 01:10:26,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:10:26,445 INFO L87 Difference]: Start difference. First operand 81 states and 116 transitions. Second operand 5 states. [2020-11-30 01:10:26,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:10:26,600 INFO L93 Difference]: Finished difference Result 378 states and 552 transitions. [2020-11-30 01:10:26,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-30 01:10:26,601 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-11-30 01:10:26,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:10:26,604 INFO L225 Difference]: With dead ends: 378 [2020-11-30 01:10:26,604 INFO L226 Difference]: Without dead ends: 304 [2020-11-30 01:10:26,605 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 [2020-11-30 01:10:26,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2020-11-30 01:10:26,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 144. [2020-11-30 01:10:26,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-11-30 01:10:26,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 203 transitions. [2020-11-30 01:10:26,655 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 203 transitions. Word has length 27 [2020-11-30 01:10:26,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:10:26,655 INFO L481 AbstractCegarLoop]: Abstraction has 144 states and 203 transitions. [2020-11-30 01:10:26,656 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 01:10:26,656 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 203 transitions. [2020-11-30 01:10:26,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-30 01:10:26,663 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:10:26,663 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] [2020-11-30 01:10:26,663 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-30 01:10:26,664 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:10:26,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:10:26,664 INFO L82 PathProgramCache]: Analyzing trace with hash -1000759295, now seen corresponding path program 1 times [2020-11-30 01:10:26,665 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:10:26,665 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681449193] [2020-11-30 01:10:26,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:10:26,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:10:26,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:10:26,800 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681449193] [2020-11-30 01:10:26,800 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:10:26,800 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 01:10:26,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346823188] [2020-11-30 01:10:26,801 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 01:10:26,801 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:10:26,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 01:10:26,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:10:26,802 INFO L87 Difference]: Start difference. First operand 144 states and 203 transitions. Second operand 5 states. [2020-11-30 01:10:26,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:10:26,997 INFO L93 Difference]: Finished difference Result 529 states and 751 transitions. [2020-11-30 01:10:26,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-30 01:10:26,998 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2020-11-30 01:10:26,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:10:27,001 INFO L225 Difference]: With dead ends: 529 [2020-11-30 01:10:27,001 INFO L226 Difference]: Without dead ends: 392 [2020-11-30 01:10:27,002 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 [2020-11-30 01:10:27,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2020-11-30 01:10:27,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 142. [2020-11-30 01:10:27,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-11-30 01:10:27,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 197 transitions. [2020-11-30 01:10:27,039 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 197 transitions. Word has length 28 [2020-11-30 01:10:27,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:10:27,040 INFO L481 AbstractCegarLoop]: Abstraction has 142 states and 197 transitions. [2020-11-30 01:10:27,040 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 01:10:27,040 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 197 transitions. [2020-11-30 01:10:27,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-11-30 01:10:27,042 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:10:27,042 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, 1, 1, 1] [2020-11-30 01:10:27,042 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-30 01:10:27,043 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:10:27,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:10:27,049 INFO L82 PathProgramCache]: Analyzing trace with hash 341285158, now seen corresponding path program 1 times [2020-11-30 01:10:27,049 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:10:27,050 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219511595] [2020-11-30 01:10:27,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:10:27,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:10:27,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:10:27,144 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219511595] [2020-11-30 01:10:27,144 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:10:27,144 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 01:10:27,145 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910241270] [2020-11-30 01:10:27,145 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 01:10:27,145 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:10:27,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 01:10:27,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:10:27,147 INFO L87 Difference]: Start difference. First operand 142 states and 197 transitions. Second operand 5 states. [2020-11-30 01:10:27,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:10:27,227 INFO L93 Difference]: Finished difference Result 429 states and 593 transitions. [2020-11-30 01:10:27,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 01:10:27,228 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35 [2020-11-30 01:10:27,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:10:27,230 INFO L225 Difference]: With dead ends: 429 [2020-11-30 01:10:27,231 INFO L226 Difference]: Without dead ends: 294 [2020-11-30 01:10:27,232 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-30 01:10:27,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-11-30 01:10:27,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 148. [2020-11-30 01:10:27,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2020-11-30 01:10:27,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 203 transitions. [2020-11-30 01:10:27,256 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 203 transitions. Word has length 35 [2020-11-30 01:10:27,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:10:27,256 INFO L481 AbstractCegarLoop]: Abstraction has 148 states and 203 transitions. [2020-11-30 01:10:27,256 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 01:10:27,256 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 203 transitions. [2020-11-30 01:10:27,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-11-30 01:10:27,259 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:10:27,259 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, 1, 1, 1] [2020-11-30 01:10:27,259 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-30 01:10:27,260 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:10:27,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:10:27,260 INFO L82 PathProgramCache]: Analyzing trace with hash -669832092, now seen corresponding path program 1 times [2020-11-30 01:10:27,261 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:10:27,261 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214802551] [2020-11-30 01:10:27,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:10:27,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:10:27,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:10:27,349 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214802551] [2020-11-30 01:10:27,349 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:10:27,349 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-30 01:10:27,349 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297253936] [2020-11-30 01:10:27,350 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 01:10:27,350 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:10:27,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 01:10:27,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:10:27,351 INFO L87 Difference]: Start difference. First operand 148 states and 203 transitions. Second operand 6 states. [2020-11-30 01:10:27,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:10:27,486 INFO L93 Difference]: Finished difference Result 447 states and 611 transitions. [2020-11-30 01:10:27,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-30 01:10:27,486 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2020-11-30 01:10:27,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:10:27,490 INFO L225 Difference]: With dead ends: 447 [2020-11-30 01:10:27,490 INFO L226 Difference]: Without dead ends: 306 [2020-11-30 01:10:27,492 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-11-30 01:10:27,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2020-11-30 01:10:27,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 152. [2020-11-30 01:10:27,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2020-11-30 01:10:27,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 207 transitions. [2020-11-30 01:10:27,521 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 207 transitions. Word has length 35 [2020-11-30 01:10:27,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:10:27,521 INFO L481 AbstractCegarLoop]: Abstraction has 152 states and 207 transitions. [2020-11-30 01:10:27,521 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 01:10:27,521 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 207 transitions. [2020-11-30 01:10:27,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-11-30 01:10:27,526 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:10:27,527 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, 1, 1, 1] [2020-11-30 01:10:27,527 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-30 01:10:27,528 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:10:27,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:10:27,529 INFO L82 PathProgramCache]: Analyzing trace with hash -1690900446, now seen corresponding path program 1 times [2020-11-30 01:10:27,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:10:27,530 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501251335] [2020-11-30 01:10:27,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:10:27,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:10:27,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:10:27,614 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501251335] [2020-11-30 01:10:27,614 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:10:27,614 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 01:10:27,615 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12016836] [2020-11-30 01:10:27,615 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:10:27,615 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:10:27,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:10:27,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:10:27,616 INFO L87 Difference]: Start difference. First operand 152 states and 207 transitions. Second operand 3 states. [2020-11-30 01:10:27,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:10:27,676 INFO L93 Difference]: Finished difference Result 383 states and 521 transitions. [2020-11-30 01:10:27,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:10:27,677 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 35 [2020-11-30 01:10:27,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:10:27,679 INFO L225 Difference]: With dead ends: 383 [2020-11-30 01:10:27,679 INFO L226 Difference]: Without dead ends: 238 [2020-11-30 01:10:27,680 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:10:27,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-11-30 01:10:27,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2020-11-30 01:10:27,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2020-11-30 01:10:27,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 315 transitions. [2020-11-30 01:10:27,715 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 315 transitions. Word has length 35 [2020-11-30 01:10:27,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:10:27,716 INFO L481 AbstractCegarLoop]: Abstraction has 238 states and 315 transitions. [2020-11-30 01:10:27,717 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:10:27,717 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 315 transitions. [2020-11-30 01:10:27,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-11-30 01:10:27,719 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:10:27,720 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, 1, 1, 1, 1] [2020-11-30 01:10:27,720 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-30 01:10:27,720 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:10:27,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:10:27,721 INFO L82 PathProgramCache]: Analyzing trace with hash -2015558942, now seen corresponding path program 1 times [2020-11-30 01:10:27,722 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:10:27,722 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699985690] [2020-11-30 01:10:27,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:10:27,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:10:27,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:10:27,804 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699985690] [2020-11-30 01:10:27,805 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:10:27,805 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:10:27,805 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325842707] [2020-11-30 01:10:27,805 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:10:27,806 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:10:27,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:10:27,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:10:27,807 INFO L87 Difference]: Start difference. First operand 238 states and 315 transitions. Second operand 3 states. [2020-11-30 01:10:27,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:10:27,892 INFO L93 Difference]: Finished difference Result 327 states and 434 transitions. [2020-11-30 01:10:27,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:10:27,897 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 36 [2020-11-30 01:10:27,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:10:27,900 INFO L225 Difference]: With dead ends: 327 [2020-11-30 01:10:27,900 INFO L226 Difference]: Without dead ends: 325 [2020-11-30 01:10:27,901 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:10:27,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2020-11-30 01:10:27,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 274. [2020-11-30 01:10:27,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2020-11-30 01:10:27,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 368 transitions. [2020-11-30 01:10:27,949 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 368 transitions. Word has length 36 [2020-11-30 01:10:27,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:10:27,949 INFO L481 AbstractCegarLoop]: Abstraction has 274 states and 368 transitions. [2020-11-30 01:10:27,950 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:10:27,950 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 368 transitions. [2020-11-30 01:10:27,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-11-30 01:10:27,951 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:10:27,952 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:10:27,952 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-30 01:10:27,952 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:10:27,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:10:27,953 INFO L82 PathProgramCache]: Analyzing trace with hash -751672759, now seen corresponding path program 1 times [2020-11-30 01:10:27,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:10:27,954 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141385447] [2020-11-30 01:10:27,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:10:28,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:10:28,095 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-30 01:10:28,095 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141385447] [2020-11-30 01:10:28,096 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:10:28,096 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-30 01:10:28,096 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544085971] [2020-11-30 01:10:28,097 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 01:10:28,097 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:10:28,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 01:10:28,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:10:28,100 INFO L87 Difference]: Start difference. First operand 274 states and 368 transitions. Second operand 6 states. [2020-11-30 01:10:28,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:10:28,451 INFO L93 Difference]: Finished difference Result 801 states and 1075 transitions. [2020-11-30 01:10:28,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-30 01:10:28,451 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 54 [2020-11-30 01:10:28,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:10:28,456 INFO L225 Difference]: With dead ends: 801 [2020-11-30 01:10:28,456 INFO L226 Difference]: Without dead ends: 534 [2020-11-30 01:10:28,458 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-11-30 01:10:28,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2020-11-30 01:10:28,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 258. [2020-11-30 01:10:28,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2020-11-30 01:10:28,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 339 transitions. [2020-11-30 01:10:28,501 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 339 transitions. Word has length 54 [2020-11-30 01:10:28,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:10:28,502 INFO L481 AbstractCegarLoop]: Abstraction has 258 states and 339 transitions. [2020-11-30 01:10:28,502 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 01:10:28,503 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 339 transitions. [2020-11-30 01:10:28,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-11-30 01:10:28,505 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:10:28,505 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:10:28,505 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-30 01:10:28,506 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:10:28,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:10:28,506 INFO L82 PathProgramCache]: Analyzing trace with hash 1255096313, now seen corresponding path program 1 times [2020-11-30 01:10:28,507 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:10:28,508 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966802076] [2020-11-30 01:10:28,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:10:28,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:10:28,613 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:10:28,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:10:28,723 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:10:28,834 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:10:28,835 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 01:10:28,835 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-30 01:10:29,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 01:10:29 BoogieIcfgContainer [2020-11-30 01:10:29,066 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 01:10:29,067 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:10:29,067 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:10:29,067 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:10:29,068 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:10:24" (3/4) ... [2020-11-30 01:10:29,070 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-30 01:10:29,316 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_3c2f1527-f9c8-4aca-93ce-34aad16f1d9d/bin/uautomizer/witness.graphml [2020-11-30 01:10:29,316 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:10:29,318 INFO L168 Benchmark]: Toolchain (without parser) took 6733.56 ms. Allocated memory was 86.0 MB in the beginning and 157.3 MB in the end (delta: 71.3 MB). Free memory was 51.1 MB in the beginning and 63.2 MB in the end (delta: -12.1 MB). Peak memory consumption was 59.7 MB. Max. memory is 16.1 GB. [2020-11-30 01:10:29,319 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 86.0 MB. Free memory was 58.8 MB in the beginning and 58.8 MB in the end (delta: 21.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:10:29,320 INFO L168 Benchmark]: CACSL2BoogieTranslator took 729.89 ms. Allocated memory was 86.0 MB in the beginning and 107.0 MB in the end (delta: 21.0 MB). Free memory was 50.8 MB in the beginning and 72.7 MB in the end (delta: -21.8 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. [2020-11-30 01:10:29,321 INFO L168 Benchmark]: Boogie Procedure Inliner took 99.69 ms. Allocated memory is still 107.0 MB. Free memory was 72.7 MB in the beginning and 69.2 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:10:29,321 INFO L168 Benchmark]: Boogie Preprocessor took 89.58 ms. Allocated memory is still 107.0 MB. Free memory was 69.2 MB in the beginning and 67.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:10:29,321 INFO L168 Benchmark]: RCFGBuilder took 1310.07 ms. Allocated memory is still 107.0 MB. Free memory was 67.1 MB in the beginning and 69.4 MB in the end (delta: -2.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:10:29,322 INFO L168 Benchmark]: TraceAbstraction took 4243.85 ms. Allocated memory was 107.0 MB in the beginning and 157.3 MB in the end (delta: 50.3 MB). Free memory was 68.8 MB in the beginning and 91.5 MB in the end (delta: -22.7 MB). Peak memory consumption was 80.0 MB. Max. memory is 16.1 GB. [2020-11-30 01:10:29,322 INFO L168 Benchmark]: Witness Printer took 249.08 ms. Allocated memory is still 157.3 MB. Free memory was 91.5 MB in the beginning and 63.2 MB in the end (delta: 28.3 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. [2020-11-30 01:10:29,325 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 86.0 MB. Free memory was 58.8 MB in the beginning and 58.8 MB in the end (delta: 21.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 729.89 ms. Allocated memory was 86.0 MB in the beginning and 107.0 MB in the end (delta: 21.0 MB). Free memory was 50.8 MB in the beginning and 72.7 MB in the end (delta: -21.8 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 99.69 ms. Allocated memory is still 107.0 MB. Free memory was 72.7 MB in the beginning and 69.2 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 89.58 ms. Allocated memory is still 107.0 MB. Free memory was 69.2 MB in the beginning and 67.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1310.07 ms. Allocated memory is still 107.0 MB. Free memory was 67.1 MB in the beginning and 69.4 MB in the end (delta: -2.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4243.85 ms. Allocated memory was 107.0 MB in the beginning and 157.3 MB in the end (delta: 50.3 MB). Free memory was 68.8 MB in the beginning and 91.5 MB in the end (delta: -22.7 MB). Peak memory consumption was 80.0 MB. Max. memory is 16.1 GB. * Witness Printer took 249.08 ms. Allocated memory is still 157.3 MB. Free memory was 91.5 MB in the beginning and 63.2 MB in the end (delta: 28.3 MB). Peak memory consumption was 29.4 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: [L134] int pumpRunning = 0; [L135] int systemActive = 1; [L366] int cleanupTimeShifts = 4; [L464] int methAndRunningLastTime ; [L504] int waterLevel = 1; [L505] int methaneLevelCritical = 0; [L767] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L441] int retValue_acc ; [L442] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L357] int retValue_acc ; [L360] retValue_acc = 1 [L361] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L448] tmp = valid_product() [L450] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L469] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L58] int splverifierCounter ; [L59] int tmp ; [L60] int tmp___0 ; [L61] int tmp___1 ; [L62] int tmp___2 ; [L65] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L67] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L69] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L75] tmp = __VERIFIER_nondet_int() [L77] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L522] COND TRUE waterLevel < 2 [L523] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L85] tmp___0 = __VERIFIER_nondet_int() [L87] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L95] tmp___2 = __VERIFIER_nondet_int() [L97] COND TRUE \read(tmp___2) [L323] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L142] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L149] COND TRUE \read(systemActive) [L171] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L174] COND TRUE ! pumpRunning [L286] int retValue_acc ; [L287] int tmp ; [L288] int tmp___0 ; [L584] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L587] COND FALSE !(waterLevel < 2) [L591] retValue_acc = 0 [L592] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L292] tmp = isHighWaterSensorDry() [L294] COND FALSE !(\read(tmp)) [L297] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L299] retValue_acc = tmp___0 [L300] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L176] tmp = isHighWaterLevel() [L178] COND TRUE \read(tmp) [L205] int tmp ; [L230] int retValue_acc ; [L543] int retValue_acc ; [L546] retValue_acc = methaneLevelCritical [L547] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L234] retValue_acc = isMethaneLevelCritical() [L236] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L209] tmp = isMethaneAlarm() [L211] COND FALSE !(\read(tmp)) [L199] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L474] int tmp ; [L475] int tmp___0 ; [L543] int retValue_acc ; [L546] retValue_acc = methaneLevelCritical [L547] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L479] tmp = isMethaneLevelCritical() [L481] COND FALSE !(\read(tmp)) [L497] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L67] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L69] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L75] tmp = __VERIFIER_nondet_int() [L77] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L85] tmp___0 = __VERIFIER_nondet_int() [L87] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L534] COND FALSE !(\read(methaneLevelCritical)) [L537] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L95] tmp___2 = __VERIFIER_nondet_int() [L97] COND TRUE \read(tmp___2) [L323] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L142] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L510] COND TRUE waterLevel > 0 [L511] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L149] COND TRUE \read(systemActive) [L171] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L174] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L474] int tmp ; [L475] int tmp___0 ; [L543] int retValue_acc ; [L546] retValue_acc = methaneLevelCritical [L547] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L479] tmp = isMethaneLevelCritical() [L481] COND TRUE \read(tmp) [L241] int retValue_acc ; [L244] retValue_acc = pumpRunning [L245] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L483] tmp___0 = isPumpRunning() [L485] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L486] COND FALSE !(\read(methAndRunningLastTime)) [L491] methAndRunningLastTime = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L67] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L69] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L75] tmp = __VERIFIER_nondet_int() [L77] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L85] tmp___0 = __VERIFIER_nondet_int() [L87] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L95] tmp___2 = __VERIFIER_nondet_int() [L97] COND TRUE \read(tmp___2) [L323] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L142] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L510] COND TRUE waterLevel > 0 [L511] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L149] COND TRUE \read(systemActive) [L171] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L174] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L474] int tmp ; [L475] int tmp___0 ; [L543] int retValue_acc ; [L546] retValue_acc = methaneLevelCritical [L547] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L479] tmp = isMethaneLevelCritical() [L481] COND TRUE \read(tmp) [L241] int retValue_acc ; [L244] retValue_acc = pumpRunning [L245] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L483] tmp___0 = isPumpRunning() [L485] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L486] COND TRUE \read(methAndRunningLastTime) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L3] __assert_fail("0", "minepump_spec2_product44.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 96 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.9s, OverallIterations: 12, TraceHistogramMax: 3, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 910 SDtfs, 1379 SDslu, 1482 SDs, 0 SdLazy, 188 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 77 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=274occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 11 MinimizatonAttempts, 1043 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 405 NumberOfCodeBlocks, 405 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 325 ConstructedInterpolants, 0 QuantifiedInterpolants, 19587 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 17/17 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...