./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product36.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_0b0ad89a-33e0-4cba-b31a-6697609ecd63/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_0b0ad89a-33e0-4cba-b31a-6697609ecd63/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0b0ad89a-33e0-4cba-b31a-6697609ecd63/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0b0ad89a-33e0-4cba-b31a-6697609ecd63/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product36.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_0b0ad89a-33e0-4cba-b31a-6697609ecd63/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0b0ad89a-33e0-4cba-b31a-6697609ecd63/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8094c843e4d897e4501a7b90ca3369f741555e9e ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.24-678e011 [2019-11-20 01:47:52,996 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 01:47:52,997 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 01:47:53,009 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 01:47:53,009 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 01:47:53,011 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 01:47:53,012 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 01:47:53,021 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 01:47:53,026 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 01:47:53,030 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 01:47:53,031 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 01:47:53,032 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 01:47:53,032 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 01:47:53,034 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 01:47:53,035 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 01:47:53,036 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 01:47:53,037 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 01:47:53,038 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 01:47:53,040 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 01:47:53,044 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 01:47:53,047 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 01:47:53,049 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 01:47:53,052 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 01:47:53,052 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 01:47:53,055 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 01:47:53,055 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 01:47:53,055 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 01:47:53,057 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 01:47:53,057 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 01:47:53,058 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 01:47:53,058 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 01:47:53,059 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 01:47:53,059 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 01:47:53,060 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 01:47:53,061 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 01:47:53,061 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 01:47:53,062 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 01:47:53,062 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 01:47:53,062 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 01:47:53,063 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 01:47:53,064 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 01:47:53,065 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0b0ad89a-33e0-4cba-b31a-6697609ecd63/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 01:47:53,090 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 01:47:53,100 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 01:47:53,101 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 01:47:53,101 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 01:47:53,102 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 01:47:53,102 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 01:47:53,102 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 01:47:53,102 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 01:47:53,103 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 01:47:53,103 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 01:47:53,103 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 01:47:53,103 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 01:47:53,103 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 01:47:53,104 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 01:47:53,104 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 01:47:53,104 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 01:47:53,104 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 01:47:53,104 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 01:47:53,105 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 01:47:53,105 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 01:47:53,105 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 01:47:53,106 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 01:47:53,107 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 01:47:53,107 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 01:47:53,107 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 01:47:53,107 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 01:47:53,107 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 01:47:53,108 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 01:47:53,108 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_0b0ad89a-33e0-4cba-b31a-6697609ecd63/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(__VERIFIER_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 -> 8094c843e4d897e4501a7b90ca3369f741555e9e [2019-11-20 01:47:53,286 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 01:47:53,303 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 01:47:53,305 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 01:47:53,307 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 01:47:53,307 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 01:47:53,308 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0b0ad89a-33e0-4cba-b31a-6697609ecd63/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product36.cil.c [2019-11-20 01:47:53,368 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0b0ad89a-33e0-4cba-b31a-6697609ecd63/bin/uautomizer/data/853e59d45/36c105ef86c84656901bcf216227ba82/FLAGe63817560 [2019-11-20 01:47:53,840 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 01:47:53,857 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0b0ad89a-33e0-4cba-b31a-6697609ecd63/sv-benchmarks/c/product-lines/minepump_spec4_product36.cil.c [2019-11-20 01:47:53,867 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0b0ad89a-33e0-4cba-b31a-6697609ecd63/bin/uautomizer/data/853e59d45/36c105ef86c84656901bcf216227ba82/FLAGe63817560 [2019-11-20 01:47:54,182 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0b0ad89a-33e0-4cba-b31a-6697609ecd63/bin/uautomizer/data/853e59d45/36c105ef86c84656901bcf216227ba82 [2019-11-20 01:47:54,184 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 01:47:54,185 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 01:47:54,186 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 01:47:54,186 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 01:47:54,189 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 01:47:54,190 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:47:54" (1/1) ... [2019-11-20 01:47:54,192 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@778eab49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:47:54, skipping insertion in model container [2019-11-20 01:47:54,193 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:47:54" (1/1) ... [2019-11-20 01:47:54,199 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 01:47:54,244 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 01:47:54,619 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 01:47:54,630 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 01:47:54,714 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 01:47:54,757 INFO L192 MainTranslator]: Completed translation [2019-11-20 01:47:54,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:47:54 WrapperNode [2019-11-20 01:47:54,758 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 01:47:54,759 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 01:47:54,759 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 01:47:54,759 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 01:47:54,768 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:47:54" (1/1) ... [2019-11-20 01:47:54,803 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:47:54" (1/1) ... [2019-11-20 01:47:54,865 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 01:47:54,869 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 01:47:54,869 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 01:47:54,870 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 01:47:54,880 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:47:54" (1/1) ... [2019-11-20 01:47:54,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:47:54" (1/1) ... [2019-11-20 01:47:54,895 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:47:54" (1/1) ... [2019-11-20 01:47:54,901 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:47:54" (1/1) ... [2019-11-20 01:47:54,911 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:47:54" (1/1) ... [2019-11-20 01:47:54,931 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:47:54" (1/1) ... [2019-11-20 01:47:54,940 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:47:54" (1/1) ... [2019-11-20 01:47:54,944 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 01:47:54,945 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 01:47:54,945 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 01:47:54,945 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 01:47:54,947 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:47:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0b0ad89a-33e0-4cba-b31a-6697609ecd63/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 [2019-11-20 01:47:55,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 01:47:55,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-20 01:47:55,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 01:47:55,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 01:47:55,660 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 01:47:55,661 INFO L285 CfgBuilder]: Removed 102 assume(true) statements. [2019-11-20 01:47:55,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:47:55 BoogieIcfgContainer [2019-11-20 01:47:55,662 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 01:47:55,663 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 01:47:55,663 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 01:47:55,666 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 01:47:55,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 01:47:54" (1/3) ... [2019-11-20 01:47:55,669 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b8aa8ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:47:55, skipping insertion in model container [2019-11-20 01:47:55,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:47:54" (2/3) ... [2019-11-20 01:47:55,670 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b8aa8ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:47:55, skipping insertion in model container [2019-11-20 01:47:55,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:47:55" (3/3) ... [2019-11-20 01:47:55,678 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product36.cil.c [2019-11-20 01:47:55,687 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 01:47:55,694 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-20 01:47:55,704 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-20 01:47:55,731 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 01:47:55,731 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 01:47:55,731 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 01:47:55,732 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 01:47:55,733 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 01:47:55,733 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 01:47:55,734 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 01:47:55,734 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 01:47:55,753 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states. [2019-11-20 01:47:55,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-20 01:47:55,761 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 01:47:55,761 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 01:47:55,762 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 01:47:55,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:47:55,770 INFO L82 PathProgramCache]: Analyzing trace with hash -502845476, now seen corresponding path program 1 times [2019-11-20 01:47:55,779 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:47:55,779 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526914911] [2019-11-20 01:47:55,780 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:47:55,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:47:56,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:47:56,026 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526914911] [2019-11-20 01:47:56,027 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 01:47:56,027 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 01:47:56,028 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528480645] [2019-11-20 01:47:56,032 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 01:47:56,032 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 01:47:56,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 01:47:56,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 01:47:56,051 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 2 states. [2019-11-20 01:47:56,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 01:47:56,092 INFO L93 Difference]: Finished difference Result 154 states and 233 transitions. [2019-11-20 01:47:56,093 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 01:47:56,094 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-11-20 01:47:56,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 01:47:56,111 INFO L225 Difference]: With dead ends: 154 [2019-11-20 01:47:56,111 INFO L226 Difference]: Without dead ends: 76 [2019-11-20 01:47:56,115 INFO L630 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 [2019-11-20 01:47:56,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2019-11-20 01:47:56,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2019-11-20 01:47:56,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2019-11-20 01:47:56,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 108 transitions. [2019-11-20 01:47:56,155 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 108 transitions. Word has length 16 [2019-11-20 01:47:56,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 01:47:56,155 INFO L462 AbstractCegarLoop]: Abstraction has 76 states and 108 transitions. [2019-11-20 01:47:56,155 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 01:47:56,156 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 108 transitions. [2019-11-20 01:47:56,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-20 01:47:56,157 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 01:47:56,157 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 01:47:56,157 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 01:47:56,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:47:56,158 INFO L82 PathProgramCache]: Analyzing trace with hash -1549602373, now seen corresponding path program 1 times [2019-11-20 01:47:56,158 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:47:56,158 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155022938] [2019-11-20 01:47:56,158 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:47:56,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:47:56,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:47:56,268 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155022938] [2019-11-20 01:47:56,268 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 01:47:56,268 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 01:47:56,269 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779117124] [2019-11-20 01:47:56,270 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 01:47:56,270 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 01:47:56,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 01:47:56,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 01:47:56,271 INFO L87 Difference]: Start difference. First operand 76 states and 108 transitions. Second operand 3 states. [2019-11-20 01:47:56,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 01:47:56,292 INFO L93 Difference]: Finished difference Result 76 states and 108 transitions. [2019-11-20 01:47:56,292 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 01:47:56,293 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-11-20 01:47:56,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 01:47:56,294 INFO L225 Difference]: With dead ends: 76 [2019-11-20 01:47:56,294 INFO L226 Difference]: Without dead ends: 36 [2019-11-20 01:47:56,295 INFO L630 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 [2019-11-20 01:47:56,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-11-20 01:47:56,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-11-20 01:47:56,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-11-20 01:47:56,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 51 transitions. [2019-11-20 01:47:56,301 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 51 transitions. Word has length 17 [2019-11-20 01:47:56,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 01:47:56,301 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 51 transitions. [2019-11-20 01:47:56,301 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 01:47:56,302 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 51 transitions. [2019-11-20 01:47:56,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-20 01:47:56,303 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 01:47:56,303 INFO L410 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] [2019-11-20 01:47:56,303 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 01:47:56,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:47:56,304 INFO L82 PathProgramCache]: Analyzing trace with hash 1499295122, now seen corresponding path program 1 times [2019-11-20 01:47:56,304 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:47:56,304 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119163541] [2019-11-20 01:47:56,304 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:47:56,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:47:56,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:47:56,371 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119163541] [2019-11-20 01:47:56,371 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 01:47:56,371 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 01:47:56,372 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012477288] [2019-11-20 01:47:56,372 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 01:47:56,372 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 01:47:56,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 01:47:56,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 01:47:56,373 INFO L87 Difference]: Start difference. First operand 36 states and 51 transitions. Second operand 3 states. [2019-11-20 01:47:56,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 01:47:56,412 INFO L93 Difference]: Finished difference Result 96 states and 141 transitions. [2019-11-20 01:47:56,413 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 01:47:56,415 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2019-11-20 01:47:56,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 01:47:56,419 INFO L225 Difference]: With dead ends: 96 [2019-11-20 01:47:56,421 INFO L226 Difference]: Without dead ends: 66 [2019-11-20 01:47:56,421 INFO L630 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 [2019-11-20 01:47:56,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2019-11-20 01:47:56,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 62. [2019-11-20 01:47:56,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2019-11-20 01:47:56,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 91 transitions. [2019-11-20 01:47:56,433 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 91 transitions. Word has length 22 [2019-11-20 01:47:56,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 01:47:56,434 INFO L462 AbstractCegarLoop]: Abstraction has 62 states and 91 transitions. [2019-11-20 01:47:56,437 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 01:47:56,437 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 91 transitions. [2019-11-20 01:47:56,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-20 01:47:56,438 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 01:47:56,438 INFO L410 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] [2019-11-20 01:47:56,439 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 01:47:56,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:47:56,439 INFO L82 PathProgramCache]: Analyzing trace with hash -1870150441, now seen corresponding path program 1 times [2019-11-20 01:47:56,439 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:47:56,439 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465219528] [2019-11-20 01:47:56,440 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:47:56,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:47:56,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:47:56,508 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465219528] [2019-11-20 01:47:56,508 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 01:47:56,509 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 01:47:56,509 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021097903] [2019-11-20 01:47:56,509 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 01:47:56,509 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 01:47:56,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 01:47:56,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 01:47:56,510 INFO L87 Difference]: Start difference. First operand 62 states and 91 transitions. Second operand 3 states. [2019-11-20 01:47:56,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 01:47:56,553 INFO L93 Difference]: Finished difference Result 159 states and 238 transitions. [2019-11-20 01:47:56,554 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 01:47:56,554 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2019-11-20 01:47:56,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 01:47:56,555 INFO L225 Difference]: With dead ends: 159 [2019-11-20 01:47:56,556 INFO L226 Difference]: Without dead ends: 103 [2019-11-20 01:47:56,556 INFO L630 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 [2019-11-20 01:47:56,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2019-11-20 01:47:56,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 101. [2019-11-20 01:47:56,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2019-11-20 01:47:56,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 147 transitions. [2019-11-20 01:47:56,568 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 147 transitions. Word has length 23 [2019-11-20 01:47:56,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 01:47:56,568 INFO L462 AbstractCegarLoop]: Abstraction has 101 states and 147 transitions. [2019-11-20 01:47:56,568 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 01:47:56,568 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 147 transitions. [2019-11-20 01:47:56,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-20 01:47:56,569 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 01:47:56,569 INFO L410 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] [2019-11-20 01:47:56,570 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 01:47:56,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:47:56,570 INFO L82 PathProgramCache]: Analyzing trace with hash 944519591, now seen corresponding path program 1 times [2019-11-20 01:47:56,570 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:47:56,570 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699790024] [2019-11-20 01:47:56,570 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:47:56,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:47:56,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:47:56,692 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699790024] [2019-11-20 01:47:56,692 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 01:47:56,692 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 01:47:56,693 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313234275] [2019-11-20 01:47:56,693 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 01:47:56,693 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 01:47:56,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 01:47:56,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 01:47:56,694 INFO L87 Difference]: Start difference. First operand 101 states and 147 transitions. Second operand 5 states. [2019-11-20 01:47:56,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 01:47:56,803 INFO L93 Difference]: Finished difference Result 369 states and 545 transitions. [2019-11-20 01:47:56,804 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 01:47:56,804 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-11-20 01:47:56,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 01:47:56,807 INFO L225 Difference]: With dead ends: 369 [2019-11-20 01:47:56,807 INFO L226 Difference]: Without dead ends: 274 [2019-11-20 01:47:56,808 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-11-20 01:47:56,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2019-11-20 01:47:56,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 182. [2019-11-20 01:47:56,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2019-11-20 01:47:56,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 256 transitions. [2019-11-20 01:47:56,830 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 256 transitions. Word has length 25 [2019-11-20 01:47:56,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 01:47:56,831 INFO L462 AbstractCegarLoop]: Abstraction has 182 states and 256 transitions. [2019-11-20 01:47:56,831 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 01:47:56,831 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 256 transitions. [2019-11-20 01:47:56,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-20 01:47:56,832 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 01:47:56,833 INFO L410 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] [2019-11-20 01:47:56,837 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 01:47:56,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:47:56,837 INFO L82 PathProgramCache]: Analyzing trace with hash -1014789399, now seen corresponding path program 1 times [2019-11-20 01:47:56,837 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:47:56,838 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516260883] [2019-11-20 01:47:56,838 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:47:56,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:47:56,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:47:56,934 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516260883] [2019-11-20 01:47:56,935 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 01:47:56,935 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 01:47:56,935 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407950344] [2019-11-20 01:47:56,936 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 01:47:56,936 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 01:47:56,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 01:47:56,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 01:47:56,937 INFO L87 Difference]: Start difference. First operand 182 states and 256 transitions. Second operand 5 states. [2019-11-20 01:47:57,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 01:47:57,083 INFO L93 Difference]: Finished difference Result 368 states and 530 transitions. [2019-11-20 01:47:57,083 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-20 01:47:57,084 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2019-11-20 01:47:57,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 01:47:57,086 INFO L225 Difference]: With dead ends: 368 [2019-11-20 01:47:57,086 INFO L226 Difference]: Without dead ends: 366 [2019-11-20 01:47:57,087 INFO L630 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 [2019-11-20 01:47:57,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2019-11-20 01:47:57,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 182. [2019-11-20 01:47:57,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2019-11-20 01:47:57,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 254 transitions. [2019-11-20 01:47:57,113 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 254 transitions. Word has length 26 [2019-11-20 01:47:57,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 01:47:57,113 INFO L462 AbstractCegarLoop]: Abstraction has 182 states and 254 transitions. [2019-11-20 01:47:57,114 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 01:47:57,114 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 254 transitions. [2019-11-20 01:47:57,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-20 01:47:57,117 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 01:47:57,117 INFO L410 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] [2019-11-20 01:47:57,120 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 01:47:57,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:47:57,121 INFO L82 PathProgramCache]: Analyzing trace with hash 1944189962, now seen corresponding path program 1 times [2019-11-20 01:47:57,121 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:47:57,121 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152535646] [2019-11-20 01:47:57,122 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:47:57,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:47:57,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:47:57,194 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152535646] [2019-11-20 01:47:57,194 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 01:47:57,194 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-20 01:47:57,195 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782540327] [2019-11-20 01:47:57,195 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 01:47:57,195 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 01:47:57,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 01:47:57,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 01:47:57,196 INFO L87 Difference]: Start difference. First operand 182 states and 254 transitions. Second operand 5 states. [2019-11-20 01:47:57,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 01:47:57,256 INFO L93 Difference]: Finished difference Result 505 states and 702 transitions. [2019-11-20 01:47:57,256 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 01:47:57,256 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2019-11-20 01:47:57,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 01:47:57,259 INFO L225 Difference]: With dead ends: 505 [2019-11-20 01:47:57,259 INFO L226 Difference]: Without dead ends: 329 [2019-11-20 01:47:57,260 INFO L630 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 [2019-11-20 01:47:57,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2019-11-20 01:47:57,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 194. [2019-11-20 01:47:57,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2019-11-20 01:47:57,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 266 transitions. [2019-11-20 01:47:57,277 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 266 transitions. Word has length 30 [2019-11-20 01:47:57,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 01:47:57,277 INFO L462 AbstractCegarLoop]: Abstraction has 194 states and 266 transitions. [2019-11-20 01:47:57,277 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 01:47:57,277 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 266 transitions. [2019-11-20 01:47:57,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-20 01:47:57,279 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 01:47:57,279 INFO L410 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] [2019-11-20 01:47:57,280 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 01:47:57,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:47:57,280 INFO L82 PathProgramCache]: Analyzing trace with hash 1551162952, now seen corresponding path program 1 times [2019-11-20 01:47:57,280 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:47:57,280 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145983589] [2019-11-20 01:47:57,281 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:47:57,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:47:57,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:47:57,337 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145983589] [2019-11-20 01:47:57,337 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 01:47:57,337 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-20 01:47:57,338 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272590407] [2019-11-20 01:47:57,338 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 01:47:57,338 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 01:47:57,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 01:47:57,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 01:47:57,339 INFO L87 Difference]: Start difference. First operand 194 states and 266 transitions. Second operand 5 states. [2019-11-20 01:47:57,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 01:47:57,460 INFO L93 Difference]: Finished difference Result 479 states and 651 transitions. [2019-11-20 01:47:57,461 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-20 01:47:57,461 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2019-11-20 01:47:57,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 01:47:57,463 INFO L225 Difference]: With dead ends: 479 [2019-11-20 01:47:57,463 INFO L226 Difference]: Without dead ends: 291 [2019-11-20 01:47:57,464 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-11-20 01:47:57,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2019-11-20 01:47:57,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 159. [2019-11-20 01:47:57,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2019-11-20 01:47:57,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 214 transitions. [2019-11-20 01:47:57,479 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 214 transitions. Word has length 30 [2019-11-20 01:47:57,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 01:47:57,480 INFO L462 AbstractCegarLoop]: Abstraction has 159 states and 214 transitions. [2019-11-20 01:47:57,480 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 01:47:57,480 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 214 transitions. [2019-11-20 01:47:57,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-20 01:47:57,484 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 01:47:57,484 INFO L410 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] [2019-11-20 01:47:57,485 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 01:47:57,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:47:57,485 INFO L82 PathProgramCache]: Analyzing trace with hash 1809328390, now seen corresponding path program 1 times [2019-11-20 01:47:57,487 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:47:57,487 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373762832] [2019-11-20 01:47:57,487 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:47:57,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:47:57,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:47:57,538 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373762832] [2019-11-20 01:47:57,538 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 01:47:57,538 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-20 01:47:57,538 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894577038] [2019-11-20 01:47:57,538 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 01:47:57,539 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 01:47:57,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 01:47:57,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 01:47:57,539 INFO L87 Difference]: Start difference. First operand 159 states and 214 transitions. Second operand 5 states. [2019-11-20 01:47:57,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 01:47:57,669 INFO L93 Difference]: Finished difference Result 420 states and 588 transitions. [2019-11-20 01:47:57,669 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 01:47:57,670 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2019-11-20 01:47:57,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 01:47:57,672 INFO L225 Difference]: With dead ends: 420 [2019-11-20 01:47:57,672 INFO L226 Difference]: Without dead ends: 315 [2019-11-20 01:47:57,673 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-11-20 01:47:57,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2019-11-20 01:47:57,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 236. [2019-11-20 01:47:57,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2019-11-20 01:47:57,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 315 transitions. [2019-11-20 01:47:57,698 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 315 transitions. Word has length 30 [2019-11-20 01:47:57,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 01:47:57,698 INFO L462 AbstractCegarLoop]: Abstraction has 236 states and 315 transitions. [2019-11-20 01:47:57,698 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 01:47:57,698 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 315 transitions. [2019-11-20 01:47:57,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-11-20 01:47:57,702 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 01:47:57,703 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 01:47:57,703 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 01:47:57,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:47:57,704 INFO L82 PathProgramCache]: Analyzing trace with hash 61594744, now seen corresponding path program 1 times [2019-11-20 01:47:57,704 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:47:57,705 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835801718] [2019-11-20 01:47:57,706 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:47:57,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:47:57,808 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:47:57,809 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835801718] [2019-11-20 01:47:57,810 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [482143122] [2019-11-20 01:47:57,810 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0b0ad89a-33e0-4cba-b31a-6697609ecd63/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 01:47:57,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:47:57,959 INFO L255 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 01:47:57,967 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 01:47:58,002 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:47:58,003 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 01:47:58,003 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2019-11-20 01:47:58,004 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44931718] [2019-11-20 01:47:58,005 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 01:47:58,006 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 01:47:58,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 01:47:58,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-20 01:47:58,006 INFO L87 Difference]: Start difference. First operand 236 states and 315 transitions. Second operand 6 states. [2019-11-20 01:47:58,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 01:47:58,236 INFO L93 Difference]: Finished difference Result 699 states and 959 transitions. [2019-11-20 01:47:58,236 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-20 01:47:58,236 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 45 [2019-11-20 01:47:58,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 01:47:58,240 INFO L225 Difference]: With dead ends: 699 [2019-11-20 01:47:58,240 INFO L226 Difference]: Without dead ends: 517 [2019-11-20 01:47:58,241 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2019-11-20 01:47:58,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2019-11-20 01:47:58,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 321. [2019-11-20 01:47:58,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 321 states. [2019-11-20 01:47:58,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 433 transitions. [2019-11-20 01:47:58,269 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 433 transitions. Word has length 45 [2019-11-20 01:47:58,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 01:47:58,270 INFO L462 AbstractCegarLoop]: Abstraction has 321 states and 433 transitions. [2019-11-20 01:47:58,270 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 01:47:58,270 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 433 transitions. [2019-11-20 01:47:58,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-11-20 01:47:58,271 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 01:47:58,271 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 01:47:58,486 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 01:47:58,486 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 01:47:58,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:47:58,487 INFO L82 PathProgramCache]: Analyzing trace with hash -594503994, now seen corresponding path program 2 times [2019-11-20 01:47:58,487 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:47:58,487 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489206008] [2019-11-20 01:47:58,487 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:47:58,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:47:58,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:47:58,694 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 01:47:58,694 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 01:47:58,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 01:47:58 BoogieIcfgContainer [2019-11-20 01:47:58,848 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 01:47:58,848 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 01:47:58,848 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 01:47:58,848 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 01:47:58,849 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:47:55" (3/4) ... [2019-11-20 01:47:58,851 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-20 01:47:58,957 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_0b0ad89a-33e0-4cba-b31a-6697609ecd63/bin/uautomizer/witness.graphml [2019-11-20 01:47:58,957 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 01:47:58,959 INFO L168 Benchmark]: Toolchain (without parser) took 4773.32 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 254.8 MB). Free memory was 952.8 MB in the beginning and 1.1 GB in the end (delta: -193.8 MB). Peak memory consumption was 61.0 MB. Max. memory is 11.5 GB. [2019-11-20 01:47:58,959 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 01:47:58,959 INFO L168 Benchmark]: CACSL2BoogieTranslator took 572.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 947.5 MB in the beginning and 1.1 GB in the end (delta: -186.3 MB). Peak memory consumption was 19.1 MB. Max. memory is 11.5 GB. [2019-11-20 01:47:58,960 INFO L168 Benchmark]: Boogie Procedure Inliner took 110.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 11.5 GB. [2019-11-20 01:47:58,960 INFO L168 Benchmark]: Boogie Preprocessor took 75.64 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 01:47:58,960 INFO L168 Benchmark]: RCFGBuilder took 717.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 61.9 MB). Peak memory consumption was 61.9 MB. Max. memory is 11.5 GB. [2019-11-20 01:47:58,961 INFO L168 Benchmark]: TraceAbstraction took 3184.68 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 102.8 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -105.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 01:47:58,961 INFO L168 Benchmark]: Witness Printer took 109.03 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 21.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 11.5 GB. [2019-11-20 01:47:58,963 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 572.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 947.5 MB in the beginning and 1.1 GB in the end (delta: -186.3 MB). Peak memory consumption was 19.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 110.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 75.64 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 717.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 61.9 MB). Peak memory consumption was 61.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3184.68 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 102.8 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -105.5 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 109.03 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 21.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 437]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L123] int pumpRunning = 0; [L124] int systemActive = 1; [L299] int cleanupTimeShifts = 4; [L611] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L809] int waterLevel = 1; [L810] int methaneLevelCritical = 0; [L375] int retValue_acc ; [L376] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L424] int retValue_acc ; [L427] retValue_acc = 1 [L428] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L382] tmp = valid_product() [L384] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L47] int splverifierCounter ; [L48] int tmp ; [L49] int tmp___0 ; [L50] int tmp___1 ; [L51] int tmp___2 ; [L54] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L56] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L58] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L64] tmp = __VERIFIER_nondet_int() [L66] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L827] COND TRUE waterLevel < 2 [L828] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L74] tmp___0 = __VERIFIER_nondet_int() [L76] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L84] tmp___2 = __VERIFIER_nondet_int() [L86] COND TRUE \read(tmp___2) [L294] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L131] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L138] COND TRUE \read(systemActive) [L160] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L163] COND TRUE ! pumpRunning [L257] int retValue_acc ; [L258] int tmp ; [L259] int tmp___0 ; [L889] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L892] COND FALSE !(waterLevel < 2) [L896] retValue_acc = 0 [L897] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L263] tmp = isHighWaterSensorDry() [L265] COND FALSE !(\read(tmp)) [L268] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L270] retValue_acc = tmp___0 [L271] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L165] tmp = isHighWaterLevel() [L167] COND TRUE \read(tmp) [L188] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L904] int tmp ; [L905] int tmp___0 ; [L880] int retValue_acc ; [L883] retValue_acc = waterLevel [L884] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L909] tmp = getWaterLevel() [L911] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L56] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L58] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L64] tmp = __VERIFIER_nondet_int() [L66] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L74] tmp___0 = __VERIFIER_nondet_int() [L76] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L84] tmp___2 = __VERIFIER_nondet_int() [L86] COND TRUE \read(tmp___2) [L294] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L131] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L815] COND TRUE waterLevel > 0 [L816] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L138] COND TRUE \read(systemActive) [L160] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L163] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L904] int tmp ; [L905] int tmp___0 ; [L880] int retValue_acc ; [L883] retValue_acc = waterLevel [L884] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L909] tmp = getWaterLevel() [L911] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L56] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L58] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L64] tmp = __VERIFIER_nondet_int() [L66] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L74] tmp___0 = __VERIFIER_nondet_int() [L76] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L84] tmp___2 = __VERIFIER_nondet_int() [L86] COND TRUE \read(tmp___2) [L294] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L131] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L815] COND TRUE waterLevel > 0 [L816] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L138] COND TRUE \read(systemActive) [L160] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L163] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L904] int tmp ; [L905] int tmp___0 ; [L880] int retValue_acc ; [L883] retValue_acc = waterLevel [L884] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L909] tmp = getWaterLevel() [L911] COND TRUE tmp == 0 [L212] int retValue_acc ; [L215] retValue_acc = pumpRunning [L216] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L913] tmp___0 = isPumpRunning() [L915] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L437] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 80 locations, 3 error locations. Result: UNSAFE, OverallTime: 3.1s, OverallIterations: 11, TraceHistogramMax: 3, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 794 SDtfs, 1113 SDslu, 1284 SDs, 0 SdLazy, 203 SolverSat, 45 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 115 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=321occurred 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: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 824 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 369 NumberOfCodeBlocks, 369 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 298 ConstructedInterpolants, 0 QuantifiedInterpolants, 17038 SizeOfPredicates, 4 NumberOfNonLiveVariables, 379 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 11 InterpolantComputations, 9 PerfectInterpolantSequences, 22/28 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...