./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product51.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_7c8f32a6-6757-4f19-8a4f-50409409c293/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_7c8f32a6-6757-4f19-8a4f-50409409c293/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7c8f32a6-6757-4f19-8a4f-50409409c293/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7c8f32a6-6757-4f19-8a4f-50409409c293/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product51.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7c8f32a6-6757-4f19-8a4f-50409409c293/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7c8f32a6-6757-4f19-8a4f-50409409c293/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 9033da3093a23b8640383fad25d5fd5dfea2cc28 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 06:12:16,859 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 06:12:16,861 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 06:12:16,871 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 06:12:16,871 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 06:12:16,872 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 06:12:16,874 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 06:12:16,876 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 06:12:16,877 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 06:12:16,878 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 06:12:16,879 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 06:12:16,880 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 06:12:16,881 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 06:12:16,882 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 06:12:16,883 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 06:12:16,884 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 06:12:16,884 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 06:12:16,885 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 06:12:16,891 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 06:12:16,893 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 06:12:16,895 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 06:12:16,896 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 06:12:16,897 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 06:12:16,898 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 06:12:16,900 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 06:12:16,900 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 06:12:16,901 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 06:12:16,902 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 06:12:16,902 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 06:12:16,903 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 06:12:16,903 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 06:12:16,907 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 06:12:16,908 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 06:12:16,909 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 06:12:16,912 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 06:12:16,912 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 06:12:16,913 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 06:12:16,913 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 06:12:16,913 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 06:12:16,917 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 06:12:16,919 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 06:12:16,920 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7c8f32a6-6757-4f19-8a4f-50409409c293/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 06:12:16,940 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 06:12:16,940 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 06:12:16,941 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 06:12:16,941 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 06:12:16,941 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 06:12:16,942 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 06:12:16,942 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 06:12:16,942 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 06:12:16,942 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 06:12:16,942 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 06:12:16,943 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 06:12:16,944 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 06:12:16,944 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 06:12:16,944 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 06:12:16,944 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 06:12:16,944 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 06:12:16,944 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 06:12:16,945 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 06:12:16,945 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 06:12:16,945 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 06:12:16,945 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 06:12:16,945 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 06:12:16,946 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 06:12:16,946 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 06:12:16,946 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 06:12:16,946 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 06:12:16,946 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 06:12:16,947 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 06:12:16,947 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_7c8f32a6-6757-4f19-8a4f-50409409c293/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 -> 9033da3093a23b8640383fad25d5fd5dfea2cc28 [2019-11-20 06:12:17,115 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 06:12:17,126 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 06:12:17,129 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 06:12:17,130 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 06:12:17,130 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 06:12:17,131 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7c8f32a6-6757-4f19-8a4f-50409409c293/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product51.cil.c [2019-11-20 06:12:17,181 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7c8f32a6-6757-4f19-8a4f-50409409c293/bin/uautomizer/data/c4003a3f1/82fde627cabf473a8f5df7a6e69e9d0c/FLAG5c3bde2d6 [2019-11-20 06:12:17,680 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 06:12:17,681 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7c8f32a6-6757-4f19-8a4f-50409409c293/sv-benchmarks/c/product-lines/minepump_spec3_product51.cil.c [2019-11-20 06:12:17,698 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7c8f32a6-6757-4f19-8a4f-50409409c293/bin/uautomizer/data/c4003a3f1/82fde627cabf473a8f5df7a6e69e9d0c/FLAG5c3bde2d6 [2019-11-20 06:12:18,151 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7c8f32a6-6757-4f19-8a4f-50409409c293/bin/uautomizer/data/c4003a3f1/82fde627cabf473a8f5df7a6e69e9d0c [2019-11-20 06:12:18,153 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 06:12:18,155 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 06:12:18,155 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 06:12:18,156 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 06:12:18,159 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 06:12:18,160 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:12:18" (1/1) ... [2019-11-20 06:12:18,162 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70041b58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:12:18, skipping insertion in model container [2019-11-20 06:12:18,163 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:12:18" (1/1) ... [2019-11-20 06:12:18,170 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 06:12:18,228 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 06:12:18,537 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 06:12:18,549 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 06:12:18,619 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 06:12:18,652 INFO L192 MainTranslator]: Completed translation [2019-11-20 06:12:18,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:12:18 WrapperNode [2019-11-20 06:12:18,653 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 06:12:18,653 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 06:12:18,654 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 06:12:18,654 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 06:12:18,662 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:12:18" (1/1) ... [2019-11-20 06:12:18,678 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:12:18" (1/1) ... [2019-11-20 06:12:18,737 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 06:12:18,739 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 06:12:18,739 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 06:12:18,739 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 06:12:18,748 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:12:18" (1/1) ... [2019-11-20 06:12:18,748 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:12:18" (1/1) ... [2019-11-20 06:12:18,765 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:12:18" (1/1) ... [2019-11-20 06:12:18,765 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:12:18" (1/1) ... [2019-11-20 06:12:18,797 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:12:18" (1/1) ... [2019-11-20 06:12:18,804 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:12:18" (1/1) ... [2019-11-20 06:12:18,807 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:12:18" (1/1) ... [2019-11-20 06:12:18,827 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 06:12:18,828 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 06:12:18,828 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 06:12:18,828 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 06:12:18,829 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:12:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7c8f32a6-6757-4f19-8a4f-50409409c293/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 06:12:18,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 06:12:18,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-20 06:12:18,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 06:12:18,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 06:12:19,846 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 06:12:19,846 INFO L285 CfgBuilder]: Removed 166 assume(true) statements. [2019-11-20 06:12:19,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:12:19 BoogieIcfgContainer [2019-11-20 06:12:19,848 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 06:12:19,848 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 06:12:19,849 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 06:12:19,853 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 06:12:19,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 06:12:18" (1/3) ... [2019-11-20 06:12:19,854 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@562242a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:12:19, skipping insertion in model container [2019-11-20 06:12:19,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:12:18" (2/3) ... [2019-11-20 06:12:19,855 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@562242a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:12:19, skipping insertion in model container [2019-11-20 06:12:19,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:12:19" (3/3) ... [2019-11-20 06:12:19,866 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product51.cil.c [2019-11-20 06:12:19,875 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 06:12:19,882 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-20 06:12:19,892 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-20 06:12:19,923 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 06:12:19,923 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 06:12:19,923 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 06:12:19,923 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 06:12:19,924 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 06:12:19,924 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 06:12:19,924 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 06:12:19,924 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 06:12:19,942 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states. [2019-11-20 06:12:19,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-20 06:12:19,948 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 06:12:19,949 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 06:12:19,950 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 06:12:19,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:12:19,956 INFO L82 PathProgramCache]: Analyzing trace with hash 335687254, now seen corresponding path program 1 times [2019-11-20 06:12:19,964 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 06:12:19,965 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24192366] [2019-11-20 06:12:19,965 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 06:12:20,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:12:20,167 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 06:12:20,168 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24192366] [2019-11-20 06:12:20,169 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 06:12:20,169 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 06:12:20,170 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993600787] [2019-11-20 06:12:20,174 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 06:12:20,175 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 06:12:20,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 06:12:20,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 06:12:20,190 INFO L87 Difference]: Start difference. First operand 125 states. Second operand 2 states. [2019-11-20 06:12:20,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 06:12:20,222 INFO L93 Difference]: Finished difference Result 244 states and 371 transitions. [2019-11-20 06:12:20,222 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 06:12:20,223 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-11-20 06:12:20,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 06:12:20,242 INFO L225 Difference]: With dead ends: 244 [2019-11-20 06:12:20,242 INFO L226 Difference]: Without dead ends: 121 [2019-11-20 06:12:20,247 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 06:12:20,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2019-11-20 06:12:20,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2019-11-20 06:12:20,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2019-11-20 06:12:20,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 177 transitions. [2019-11-20 06:12:20,292 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 177 transitions. Word has length 18 [2019-11-20 06:12:20,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 06:12:20,293 INFO L462 AbstractCegarLoop]: Abstraction has 121 states and 177 transitions. [2019-11-20 06:12:20,293 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 06:12:20,293 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 177 transitions. [2019-11-20 06:12:20,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-20 06:12:20,294 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 06:12:20,294 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 06:12:20,295 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 06:12:20,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:12:20,295 INFO L82 PathProgramCache]: Analyzing trace with hash -575343499, now seen corresponding path program 1 times [2019-11-20 06:12:20,295 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 06:12:20,296 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091230713] [2019-11-20 06:12:20,296 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 06:12:20,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:12:20,425 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 06:12:20,425 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091230713] [2019-11-20 06:12:20,425 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 06:12:20,426 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 06:12:20,426 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217790318] [2019-11-20 06:12:20,427 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 06:12:20,427 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 06:12:20,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 06:12:20,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 06:12:20,428 INFO L87 Difference]: Start difference. First operand 121 states and 177 transitions. Second operand 3 states. [2019-11-20 06:12:20,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 06:12:20,441 INFO L93 Difference]: Finished difference Result 121 states and 177 transitions. [2019-11-20 06:12:20,441 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 06:12:20,441 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-11-20 06:12:20,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 06:12:20,442 INFO L225 Difference]: With dead ends: 121 [2019-11-20 06:12:20,443 INFO L226 Difference]: Without dead ends: 51 [2019-11-20 06:12:20,444 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 06:12:20,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2019-11-20 06:12:20,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2019-11-20 06:12:20,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2019-11-20 06:12:20,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 74 transitions. [2019-11-20 06:12:20,451 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 74 transitions. Word has length 19 [2019-11-20 06:12:20,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 06:12:20,451 INFO L462 AbstractCegarLoop]: Abstraction has 51 states and 74 transitions. [2019-11-20 06:12:20,451 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 06:12:20,452 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 74 transitions. [2019-11-20 06:12:20,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-20 06:12:20,452 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 06:12:20,453 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] [2019-11-20 06:12:20,453 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 06:12:20,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:12:20,453 INFO L82 PathProgramCache]: Analyzing trace with hash -1538545843, now seen corresponding path program 1 times [2019-11-20 06:12:20,453 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 06:12:20,454 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551490120] [2019-11-20 06:12:20,454 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 06:12:20,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:12:20,564 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 06:12:20,564 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551490120] [2019-11-20 06:12:20,565 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 06:12:20,565 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-20 06:12:20,565 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204253378] [2019-11-20 06:12:20,565 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 06:12:20,565 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 06:12:20,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 06:12:20,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-20 06:12:20,566 INFO L87 Difference]: Start difference. First operand 51 states and 74 transitions. Second operand 6 states. [2019-11-20 06:12:20,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 06:12:20,703 INFO L93 Difference]: Finished difference Result 166 states and 247 transitions. [2019-11-20 06:12:20,703 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 06:12:20,703 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2019-11-20 06:12:20,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 06:12:20,705 INFO L225 Difference]: With dead ends: 166 [2019-11-20 06:12:20,705 INFO L226 Difference]: Without dead ends: 121 [2019-11-20 06:12:20,706 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-11-20 06:12:20,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2019-11-20 06:12:20,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 72. [2019-11-20 06:12:20,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2019-11-20 06:12:20,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 106 transitions. [2019-11-20 06:12:20,726 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 106 transitions. Word has length 24 [2019-11-20 06:12:20,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 06:12:20,727 INFO L462 AbstractCegarLoop]: Abstraction has 72 states and 106 transitions. [2019-11-20 06:12:20,727 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 06:12:20,727 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 106 transitions. [2019-11-20 06:12:20,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-20 06:12:20,728 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 06:12:20,728 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 06:12:20,729 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 06:12:20,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:12:20,729 INFO L82 PathProgramCache]: Analyzing trace with hash -560581361, now seen corresponding path program 1 times [2019-11-20 06:12:20,729 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 06:12:20,729 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822246129] [2019-11-20 06:12:20,730 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 06:12:20,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:12:20,798 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 06:12:20,798 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822246129] [2019-11-20 06:12:20,798 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 06:12:20,799 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 06:12:20,799 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928068749] [2019-11-20 06:12:20,799 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 06:12:20,799 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 06:12:20,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 06:12:20,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 06:12:20,800 INFO L87 Difference]: Start difference. First operand 72 states and 106 transitions. Second operand 3 states. [2019-11-20 06:12:20,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 06:12:20,857 INFO L93 Difference]: Finished difference Result 161 states and 239 transitions. [2019-11-20 06:12:20,858 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 06:12:20,858 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2019-11-20 06:12:20,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 06:12:20,859 INFO L225 Difference]: With dead ends: 161 [2019-11-20 06:12:20,860 INFO L226 Difference]: Without dead ends: 95 [2019-11-20 06:12:20,860 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 06:12:20,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2019-11-20 06:12:20,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 93. [2019-11-20 06:12:20,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2019-11-20 06:12:20,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 133 transitions. [2019-11-20 06:12:20,877 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 133 transitions. Word has length 26 [2019-11-20 06:12:20,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 06:12:20,877 INFO L462 AbstractCegarLoop]: Abstraction has 93 states and 133 transitions. [2019-11-20 06:12:20,878 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 06:12:20,878 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 133 transitions. [2019-11-20 06:12:20,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-20 06:12:20,879 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 06:12:20,879 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] [2019-11-20 06:12:20,879 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 06:12:20,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:12:20,880 INFO L82 PathProgramCache]: Analyzing trace with hash 364943842, now seen corresponding path program 1 times [2019-11-20 06:12:20,880 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 06:12:20,880 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533777289] [2019-11-20 06:12:20,881 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 06:12:20,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:12:21,027 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 06:12:21,028 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533777289] [2019-11-20 06:12:21,028 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 06:12:21,028 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 06:12:21,028 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680158271] [2019-11-20 06:12:21,029 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 06:12:21,029 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 06:12:21,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 06:12:21,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 06:12:21,030 INFO L87 Difference]: Start difference. First operand 93 states and 133 transitions. Second operand 5 states. [2019-11-20 06:12:21,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 06:12:21,206 INFO L93 Difference]: Finished difference Result 482 states and 707 transitions. [2019-11-20 06:12:21,206 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 06:12:21,206 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2019-11-20 06:12:21,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 06:12:21,211 INFO L225 Difference]: With dead ends: 482 [2019-11-20 06:12:21,212 INFO L226 Difference]: Without dead ends: 395 [2019-11-20 06:12:21,214 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 06:12:21,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2019-11-20 06:12:21,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 158. [2019-11-20 06:12:21,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2019-11-20 06:12:21,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 221 transitions. [2019-11-20 06:12:21,262 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 221 transitions. Word has length 27 [2019-11-20 06:12:21,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 06:12:21,263 INFO L462 AbstractCegarLoop]: Abstraction has 158 states and 221 transitions. [2019-11-20 06:12:21,263 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 06:12:21,263 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 221 transitions. [2019-11-20 06:12:21,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-20 06:12:21,269 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 06:12:21,269 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] [2019-11-20 06:12:21,269 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 06:12:21,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:12:21,270 INFO L82 PathProgramCache]: Analyzing trace with hash -1335319900, now seen corresponding path program 1 times [2019-11-20 06:12:21,270 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 06:12:21,270 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807177201] [2019-11-20 06:12:21,271 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 06:12:21,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 06:12:21,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 06:12:21,505 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 06:12:21,505 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 06:12:21,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 06:12:21 BoogieIcfgContainer [2019-11-20 06:12:21,585 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 06:12:21,586 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 06:12:21,586 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 06:12:21,586 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 06:12:21,587 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:12:19" (3/4) ... [2019-11-20 06:12:21,589 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-20 06:12:21,666 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_7c8f32a6-6757-4f19-8a4f-50409409c293/bin/uautomizer/witness.graphml [2019-11-20 06:12:21,668 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 06:12:21,670 INFO L168 Benchmark]: Toolchain (without parser) took 3515.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 950.1 MB in the beginning and 878.9 MB in the end (delta: 71.2 MB). Peak memory consumption was 198.6 MB. Max. memory is 11.5 GB. [2019-11-20 06:12:21,675 INFO L168 Benchmark]: CDTParser took 0.17 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 06:12:21,676 INFO L168 Benchmark]: CACSL2BoogieTranslator took 497.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -158.6 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2019-11-20 06:12:21,676 INFO L168 Benchmark]: Boogie Procedure Inliner took 85.09 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 06:12:21,677 INFO L168 Benchmark]: Boogie Preprocessor took 88.86 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-20 06:12:21,678 INFO L168 Benchmark]: RCFGBuilder took 1019.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 68.8 MB). Peak memory consumption was 68.8 MB. Max. memory is 11.5 GB. [2019-11-20 06:12:21,679 INFO L168 Benchmark]: TraceAbstraction took 1736.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 892.5 MB in the end (delta: 135.3 MB). Peak memory consumption was 135.3 MB. Max. memory is 11.5 GB. [2019-11-20 06:12:21,679 INFO L168 Benchmark]: Witness Printer took 82.74 ms. Allocated memory is still 1.2 GB. Free memory was 892.5 MB in the beginning and 878.9 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. [2019-11-20 06:12:21,681 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 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 497.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -158.6 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 85.09 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. * Boogie Preprocessor took 88.86 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1019.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 68.8 MB). Peak memory consumption was 68.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1736.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 892.5 MB in the end (delta: 135.3 MB). Peak memory consumption was 135.3 MB. Max. memory is 11.5 GB. * Witness Printer took 82.74 ms. Allocated memory is still 1.2 GB. Free memory was 892.5 MB in the beginning and 878.9 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 977]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L48] int waterLevel = 1; [L49] int methaneLevelCritical = 0; [L225] int pumpRunning = 0; [L226] int systemActive = 1; [L473] int cleanupTimeShifts = 4; [L776] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L549] int retValue_acc ; [L550] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L598] int retValue_acc ; [L601] retValue_acc = 1 [L602] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L556] tmp = valid_product() [L558] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L155] int splverifierCounter ; [L156] int tmp ; [L157] int tmp___0 ; [L158] int tmp___1 ; [L159] int tmp___2 ; [L162] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L164] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L166] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L172] tmp = __VERIFIER_nondet_int() [L174] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L66] COND TRUE waterLevel < 2 [L67] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L182] tmp___0 = __VERIFIER_nondet_int() [L184] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L192] tmp___2 = __VERIFIER_nondet_int() [L194] COND FALSE !(\read(tmp___2)) [L198] tmp___1 = __VERIFIER_nondet_int() [L200] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L426] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L433] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L233] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L240] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L440] int tmp ; [L441] int tmp___0 ; [L442] int tmp___1 ; [L87] int retValue_acc ; [L90] retValue_acc = methaneLevelCritical [L91] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L446] tmp = isMethaneLevelCritical() [L448] COND FALSE !(\read(tmp)) [L119] int retValue_acc ; [L122] retValue_acc = waterLevel [L123] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L452] tmp___0 = getWaterLevel() [L454] COND TRUE tmp___0 == 2 [L340] int retValue_acc ; [L343] retValue_acc = pumpRunning [L344] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L456] tmp___1 = isPumpRunning() [L458] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L977] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 125 locations, 3 error locations. Result: UNSAFE, OverallTime: 1.6s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 517 SDtfs, 655 SDslu, 669 SDs, 0 SdLazy, 81 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=158occurred in iteration=5, 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, 5 MinimizatonAttempts, 288 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 109 ConstructedInterpolants, 0 QuantifiedInterpolants, 5504 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 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...