./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product35.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_2be08f55-d2a1-4e95-b369-54ee49fb2c38/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_2be08f55-d2a1-4e95-b369-54ee49fb2c38/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_2be08f55-d2a1-4e95-b369-54ee49fb2c38/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_2be08f55-d2a1-4e95-b369-54ee49fb2c38/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product35.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_2be08f55-d2a1-4e95-b369-54ee49fb2c38/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_2be08f55-d2a1-4e95-b369-54ee49fb2c38/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 426d9f957077f660214567f7d0d5aaa1a30c29c0 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_2be08f55-d2a1-4e95-b369-54ee49fb2c38/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_2be08f55-d2a1-4e95-b369-54ee49fb2c38/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_2be08f55-d2a1-4e95-b369-54ee49fb2c38/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_2be08f55-d2a1-4e95-b369-54ee49fb2c38/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product35.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_2be08f55-d2a1-4e95-b369-54ee49fb2c38/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_2be08f55-d2a1-4e95-b369-54ee49fb2c38/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 426d9f957077f660214567f7d0d5aaa1a30c29c0 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 11:26:58,798 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:26:58,799 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:26:58,812 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:26:58,813 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:26:58,814 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:26:58,815 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:26:58,817 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:26:58,820 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:26:58,822 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:26:58,824 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:26:58,825 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:26:58,825 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:26:58,826 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:26:58,827 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:26:58,828 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:26:58,839 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:26:58,839 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:26:58,841 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:26:58,842 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:26:58,843 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:26:58,844 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:26:58,846 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:26:58,847 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:26:58,849 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:26:58,849 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:26:58,849 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:26:58,850 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:26:58,850 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:26:58,851 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:26:58,851 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:26:58,852 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:26:58,852 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:26:58,853 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:26:58,854 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:26:58,854 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:26:58,854 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:26:58,855 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:26:58,855 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:26:58,855 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:26:58,856 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:26:58,857 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_2be08f55-d2a1-4e95-b369-54ee49fb2c38/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:26:58,868 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:26:58,868 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:26:58,869 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:26:58,869 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:26:58,870 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:26:58,870 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:26:58,870 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:26:58,870 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:26:58,870 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:26:58,871 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:26:58,871 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:26:58,871 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:26:58,872 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:26:58,872 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:26:58,872 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:26:58,872 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:26:58,873 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:26:58,873 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:26:58,873 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:26:58,873 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:26:58,873 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:26:58,874 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:26:58,874 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:26:58,874 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:26:58,874 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:26:58,874 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:26:58,875 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:26:58,875 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:26:58,875 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:26:58,875 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:26:58,876 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:26:58,877 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:26:58,877 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:26:58,877 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:26:58,878 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:26:58,878 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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/working_dir_2be08f55-d2a1-4e95-b369-54ee49fb2c38/bin/utaipan 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 -> Taipan 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 -> 426d9f957077f660214567f7d0d5aaa1a30c29c0 [2019-10-22 11:26:58,914 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:26:58,928 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:26:58,931 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:26:58,935 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:26:58,936 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:26:58,936 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_2be08f55-d2a1-4e95-b369-54ee49fb2c38/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec5_product35.cil.c [2019-10-22 11:26:58,982 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2be08f55-d2a1-4e95-b369-54ee49fb2c38/bin/utaipan/data/f7fa4d4b3/e429ab73daea41ebb2300a7254c41a9c/FLAG2622d3a8b [2019-10-22 11:26:59,420 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:26:59,421 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_2be08f55-d2a1-4e95-b369-54ee49fb2c38/sv-benchmarks/c/product-lines/minepump_spec5_product35.cil.c [2019-10-22 11:26:59,432 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2be08f55-d2a1-4e95-b369-54ee49fb2c38/bin/utaipan/data/f7fa4d4b3/e429ab73daea41ebb2300a7254c41a9c/FLAG2622d3a8b [2019-10-22 11:26:59,446 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_2be08f55-d2a1-4e95-b369-54ee49fb2c38/bin/utaipan/data/f7fa4d4b3/e429ab73daea41ebb2300a7254c41a9c [2019-10-22 11:26:59,448 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:26:59,449 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:26:59,453 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:26:59,453 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:26:59,458 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:26:59,459 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:26:59" (1/1) ... [2019-10-22 11:26:59,461 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bcd7b63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:59, skipping insertion in model container [2019-10-22 11:26:59,461 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:26:59" (1/1) ... [2019-10-22 11:26:59,469 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:26:59,519 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:26:59,946 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:26:59,958 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:27:00,041 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:27:00,067 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:27:00,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:00 WrapperNode [2019-10-22 11:27:00,068 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:27:00,069 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:27:00,069 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:27:00,069 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:27:00,078 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:00" (1/1) ... [2019-10-22 11:27:00,095 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:00" (1/1) ... [2019-10-22 11:27:00,138 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:27:00,138 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:27:00,138 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:27:00,138 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:27:00,148 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:00" (1/1) ... [2019-10-22 11:27:00,148 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:00" (1/1) ... [2019-10-22 11:27:00,151 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:00" (1/1) ... [2019-10-22 11:27:00,151 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:00" (1/1) ... [2019-10-22 11:27:00,168 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:00" (1/1) ... [2019-10-22 11:27:00,175 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:00" (1/1) ... [2019-10-22 11:27:00,178 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:00" (1/1) ... [2019-10-22 11:27:00,184 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:27:00,184 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:27:00,184 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:27:00,184 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:27:00,185 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2be08f55-d2a1-4e95-b369-54ee49fb2c38/bin/utaipan/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 [2019-10-22 11:27:00,256 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:27:00,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 11:27:00,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:27:00,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:27:00,913 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:27:00,913 INFO L284 CfgBuilder]: Removed 114 assume(true) statements. [2019-10-22 11:27:00,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:27:00 BoogieIcfgContainer [2019-10-22 11:27:00,915 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:27:00,916 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:27:00,916 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:27:00,918 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:27:00,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:26:59" (1/3) ... [2019-10-22 11:27:00,920 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@387a97d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:27:00, skipping insertion in model container [2019-10-22 11:27:00,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:00" (2/3) ... [2019-10-22 11:27:00,924 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@387a97d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:27:00, skipping insertion in model container [2019-10-22 11:27:00,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:27:00" (3/3) ... [2019-10-22 11:27:00,926 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product35.cil.c [2019-10-22 11:27:00,937 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:27:00,947 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-22 11:27:00,960 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-22 11:27:00,996 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:27:00,997 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:27:00,997 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:27:00,997 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:27:00,997 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:27:00,997 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:27:00,998 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:27:00,998 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:27:01,017 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states. [2019-10-22 11:27:01,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 11:27:01,025 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:01,026 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:27:01,029 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:27:01,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:01,035 INFO L82 PathProgramCache]: Analyzing trace with hash -950357280, now seen corresponding path program 1 times [2019-10-22 11:27:01,044 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:27:01,044 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394335917] [2019-10-22 11:27:01,044 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:01,045 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:01,045 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:27:01,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:01,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:01,288 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394335917] [2019-10-22 11:27:01,289 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:01,289 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:27:01,289 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535268120] [2019-10-22 11:27:01,294 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 11:27:01,296 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:27:01,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 11:27:01,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:27:01,314 INFO L87 Difference]: Start difference. First operand 89 states. Second operand 2 states. [2019-10-22 11:27:01,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:01,348 INFO L93 Difference]: Finished difference Result 171 states and 256 transitions. [2019-10-22 11:27:01,349 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 11:27:01,350 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2019-10-22 11:27:01,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:01,365 INFO L225 Difference]: With dead ends: 171 [2019-10-22 11:27:01,366 INFO L226 Difference]: Without dead ends: 85 [2019-10-22 11:27:01,369 INFO L600 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 [2019-10-22 11:27:01,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2019-10-22 11:27:01,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2019-10-22 11:27:01,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2019-10-22 11:27:01,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 120 transitions. [2019-10-22 11:27:01,420 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 120 transitions. Word has length 19 [2019-10-22 11:27:01,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:01,420 INFO L462 AbstractCegarLoop]: Abstraction has 85 states and 120 transitions. [2019-10-22 11:27:01,420 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 11:27:01,421 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 120 transitions. [2019-10-22 11:27:01,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-22 11:27:01,421 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:01,422 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:27:01,422 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:27:01,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:01,422 INFO L82 PathProgramCache]: Analyzing trace with hash -552380079, now seen corresponding path program 1 times [2019-10-22 11:27:01,423 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:27:01,423 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15856858] [2019-10-22 11:27:01,423 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:01,423 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:01,423 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:27:01,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:01,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:01,515 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15856858] [2019-10-22 11:27:01,515 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:01,515 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:27:01,515 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534615464] [2019-10-22 11:27:01,517 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:27:01,517 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:27:01,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:27:01,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:27:01,518 INFO L87 Difference]: Start difference. First operand 85 states and 120 transitions. Second operand 3 states. [2019-10-22 11:27:01,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:01,528 INFO L93 Difference]: Finished difference Result 85 states and 120 transitions. [2019-10-22 11:27:01,529 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:27:01,529 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2019-10-22 11:27:01,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:01,530 INFO L225 Difference]: With dead ends: 85 [2019-10-22 11:27:01,530 INFO L226 Difference]: Without dead ends: 40 [2019-10-22 11:27:01,531 INFO L600 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 [2019-10-22 11:27:01,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-10-22 11:27:01,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2019-10-22 11:27:01,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-10-22 11:27:01,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 56 transitions. [2019-10-22 11:27:01,536 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 56 transitions. Word has length 20 [2019-10-22 11:27:01,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:01,536 INFO L462 AbstractCegarLoop]: Abstraction has 40 states and 56 transitions. [2019-10-22 11:27:01,536 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:27:01,537 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 56 transitions. [2019-10-22 11:27:01,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-22 11:27:01,537 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:01,537 INFO L380 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] [2019-10-22 11:27:01,538 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:27:01,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:01,538 INFO L82 PathProgramCache]: Analyzing trace with hash 483095041, now seen corresponding path program 1 times [2019-10-22 11:27:01,538 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:27:01,539 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669649950] [2019-10-22 11:27:01,539 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:01,539 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:01,539 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:27:01,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:01,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:01,680 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669649950] [2019-10-22 11:27:01,680 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:01,681 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 11:27:01,681 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8870436] [2019-10-22 11:27:01,681 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:27:01,681 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:27:01,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:27:01,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:27:01,682 INFO L87 Difference]: Start difference. First operand 40 states and 56 transitions. Second operand 6 states. [2019-10-22 11:27:01,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:01,845 INFO L93 Difference]: Finished difference Result 132 states and 192 transitions. [2019-10-22 11:27:01,849 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:27:01,850 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2019-10-22 11:27:01,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:01,851 INFO L225 Difference]: With dead ends: 132 [2019-10-22 11:27:01,851 INFO L226 Difference]: Without dead ends: 99 [2019-10-22 11:27:01,852 INFO L600 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 [2019-10-22 11:27:01,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2019-10-22 11:27:01,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 62. [2019-10-22 11:27:01,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2019-10-22 11:27:01,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 89 transitions. [2019-10-22 11:27:01,862 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 89 transitions. Word has length 26 [2019-10-22 11:27:01,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:01,863 INFO L462 AbstractCegarLoop]: Abstraction has 62 states and 89 transitions. [2019-10-22 11:27:01,863 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:27:01,863 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 89 transitions. [2019-10-22 11:27:01,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-22 11:27:01,864 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:01,864 INFO L380 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] [2019-10-22 11:27:01,864 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:27:01,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:01,865 INFO L82 PathProgramCache]: Analyzing trace with hash -2057617797, now seen corresponding path program 1 times [2019-10-22 11:27:01,865 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:27:01,865 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554659383] [2019-10-22 11:27:01,865 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:01,866 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:01,866 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:27:01,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:01,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:01,986 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554659383] [2019-10-22 11:27:01,986 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:01,987 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:27:01,987 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287643505] [2019-10-22 11:27:01,987 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:27:01,987 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:27:01,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:27:01,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:27:01,988 INFO L87 Difference]: Start difference. First operand 62 states and 89 transitions. Second operand 3 states. [2019-10-22 11:27:02,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:02,046 INFO L93 Difference]: Finished difference Result 141 states and 205 transitions. [2019-10-22 11:27:02,046 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:27:02,046 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2019-10-22 11:27:02,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:02,048 INFO L225 Difference]: With dead ends: 141 [2019-10-22 11:27:02,048 INFO L226 Difference]: Without dead ends: 86 [2019-10-22 11:27:02,048 INFO L600 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 [2019-10-22 11:27:02,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2019-10-22 11:27:02,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 84. [2019-10-22 11:27:02,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2019-10-22 11:27:02,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 118 transitions. [2019-10-22 11:27:02,073 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 118 transitions. Word has length 27 [2019-10-22 11:27:02,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:02,074 INFO L462 AbstractCegarLoop]: Abstraction has 84 states and 118 transitions. [2019-10-22 11:27:02,074 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:27:02,074 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 118 transitions. [2019-10-22 11:27:02,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-10-22 11:27:02,076 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:02,077 INFO L380 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] [2019-10-22 11:27:02,077 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:27:02,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:02,077 INFO L82 PathProgramCache]: Analyzing trace with hash 214615626, now seen corresponding path program 1 times [2019-10-22 11:27:02,078 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:27:02,078 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222322347] [2019-10-22 11:27:02,078 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:02,078 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:02,078 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:27:02,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:02,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:02,179 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222322347] [2019-10-22 11:27:02,180 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:02,180 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:27:02,180 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191776693] [2019-10-22 11:27:02,180 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:27:02,181 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:27:02,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:27:02,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:27:02,181 INFO L87 Difference]: Start difference. First operand 84 states and 118 transitions. Second operand 5 states. [2019-10-22 11:27:02,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:02,336 INFO L93 Difference]: Finished difference Result 273 states and 386 transitions. [2019-10-22 11:27:02,336 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 11:27:02,336 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2019-10-22 11:27:02,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:02,338 INFO L225 Difference]: With dead ends: 273 [2019-10-22 11:27:02,338 INFO L226 Difference]: Without dead ends: 196 [2019-10-22 11:27:02,339 INFO L600 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 [2019-10-22 11:27:02,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2019-10-22 11:27:02,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 82. [2019-10-22 11:27:02,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2019-10-22 11:27:02,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 112 transitions. [2019-10-22 11:27:02,352 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 112 transitions. Word has length 29 [2019-10-22 11:27:02,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:02,353 INFO L462 AbstractCegarLoop]: Abstraction has 82 states and 112 transitions. [2019-10-22 11:27:02,353 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:27:02,353 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 112 transitions. [2019-10-22 11:27:02,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-10-22 11:27:02,354 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:02,354 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:27:02,354 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:27:02,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:02,355 INFO L82 PathProgramCache]: Analyzing trace with hash 1855288842, now seen corresponding path program 1 times [2019-10-22 11:27:02,355 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:27:02,355 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163198446] [2019-10-22 11:27:02,355 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:02,356 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:02,356 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:27:02,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:02,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:02,440 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163198446] [2019-10-22 11:27:02,440 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:02,441 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 11:27:02,441 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595501308] [2019-10-22 11:27:02,441 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:27:02,441 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:27:02,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:27:02,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:27:02,442 INFO L87 Difference]: Start difference. First operand 82 states and 112 transitions. Second operand 5 states. [2019-10-22 11:27:02,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:02,502 INFO L93 Difference]: Finished difference Result 240 states and 330 transitions. [2019-10-22 11:27:02,503 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:27:02,503 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2019-10-22 11:27:02,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:02,504 INFO L225 Difference]: With dead ends: 240 [2019-10-22 11:27:02,505 INFO L226 Difference]: Without dead ends: 165 [2019-10-22 11:27:02,505 INFO L600 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 [2019-10-22 11:27:02,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2019-10-22 11:27:02,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 85. [2019-10-22 11:27:02,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2019-10-22 11:27:02,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 115 transitions. [2019-10-22 11:27:02,531 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 115 transitions. Word has length 33 [2019-10-22 11:27:02,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:02,531 INFO L462 AbstractCegarLoop]: Abstraction has 85 states and 115 transitions. [2019-10-22 11:27:02,531 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:27:02,531 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 115 transitions. [2019-10-22 11:27:02,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-10-22 11:27:02,532 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:02,532 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:27:02,533 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:27:02,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:02,533 INFO L82 PathProgramCache]: Analyzing trace with hash -1738613876, now seen corresponding path program 1 times [2019-10-22 11:27:02,533 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:27:02,533 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128252167] [2019-10-22 11:27:02,533 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:02,534 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:02,534 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:27:02,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:02,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:02,621 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128252167] [2019-10-22 11:27:02,622 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:02,622 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 11:27:02,622 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086535319] [2019-10-22 11:27:02,622 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:27:02,623 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:27:02,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:27:02,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:27:02,623 INFO L87 Difference]: Start difference. First operand 85 states and 115 transitions. Second operand 6 states. [2019-10-22 11:27:02,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:02,703 INFO L93 Difference]: Finished difference Result 254 states and 345 transitions. [2019-10-22 11:27:02,704 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 11:27:02,704 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-10-22 11:27:02,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:02,705 INFO L225 Difference]: With dead ends: 254 [2019-10-22 11:27:02,705 INFO L226 Difference]: Without dead ends: 176 [2019-10-22 11:27:02,706 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2019-10-22 11:27:02,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2019-10-22 11:27:02,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 87. [2019-10-22 11:27:02,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2019-10-22 11:27:02,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 117 transitions. [2019-10-22 11:27:02,720 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 117 transitions. Word has length 33 [2019-10-22 11:27:02,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:02,720 INFO L462 AbstractCegarLoop]: Abstraction has 87 states and 117 transitions. [2019-10-22 11:27:02,720 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:27:02,720 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 117 transitions. [2019-10-22 11:27:02,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-10-22 11:27:02,721 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:02,721 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:27:02,722 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:27:02,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:02,722 INFO L82 PathProgramCache]: Analyzing trace with hash 1969547406, now seen corresponding path program 1 times [2019-10-22 11:27:02,722 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:27:02,723 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103580623] [2019-10-22 11:27:02,723 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:02,723 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:02,723 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:27:02,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:02,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:02,773 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103580623] [2019-10-22 11:27:02,773 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:02,773 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:27:02,773 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053338873] [2019-10-22 11:27:02,774 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:27:02,774 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:27:02,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:27:02,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:27:02,775 INFO L87 Difference]: Start difference. First operand 87 states and 117 transitions. Second operand 3 states. [2019-10-22 11:27:02,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:02,805 INFO L93 Difference]: Finished difference Result 216 states and 292 transitions. [2019-10-22 11:27:02,806 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:27:02,806 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2019-10-22 11:27:02,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:02,807 INFO L225 Difference]: With dead ends: 216 [2019-10-22 11:27:02,808 INFO L226 Difference]: Without dead ends: 136 [2019-10-22 11:27:02,808 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:27:02,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2019-10-22 11:27:02,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2019-10-22 11:27:02,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2019-10-22 11:27:02,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 179 transitions. [2019-10-22 11:27:02,847 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 179 transitions. Word has length 33 [2019-10-22 11:27:02,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:02,847 INFO L462 AbstractCegarLoop]: Abstraction has 136 states and 179 transitions. [2019-10-22 11:27:02,847 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:27:02,847 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 179 transitions. [2019-10-22 11:27:02,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-10-22 11:27:02,852 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:02,852 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:27:02,852 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:27:02,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:02,853 INFO L82 PathProgramCache]: Analyzing trace with hash -430787762, now seen corresponding path program 1 times [2019-10-22 11:27:02,854 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:27:02,854 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087613388] [2019-10-22 11:27:02,854 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:02,854 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:02,854 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:27:02,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:02,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:02,964 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087613388] [2019-10-22 11:27:02,965 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:02,965 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 11:27:02,965 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814471024] [2019-10-22 11:27:02,965 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:27:02,965 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:27:02,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:27:02,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:27:02,966 INFO L87 Difference]: Start difference. First operand 136 states and 179 transitions. Second operand 6 states. [2019-10-22 11:27:03,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:03,220 INFO L93 Difference]: Finished difference Result 481 states and 655 transitions. [2019-10-22 11:27:03,220 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 11:27:03,220 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2019-10-22 11:27:03,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:03,222 INFO L225 Difference]: With dead ends: 481 [2019-10-22 11:27:03,222 INFO L226 Difference]: Without dead ends: 401 [2019-10-22 11:27:03,223 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2019-10-22 11:27:03,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2019-10-22 11:27:03,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 198. [2019-10-22 11:27:03,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2019-10-22 11:27:03,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 259 transitions. [2019-10-22 11:27:03,257 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 259 transitions. Word has length 34 [2019-10-22 11:27:03,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:03,258 INFO L462 AbstractCegarLoop]: Abstraction has 198 states and 259 transitions. [2019-10-22 11:27:03,258 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:27:03,258 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 259 transitions. [2019-10-22 11:27:03,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-22 11:27:03,259 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:03,259 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:27:03,259 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:27:03,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:03,260 INFO L82 PathProgramCache]: Analyzing trace with hash -915518735, now seen corresponding path program 1 times [2019-10-22 11:27:03,260 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:27:03,260 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905729245] [2019-10-22 11:27:03,261 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:03,261 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:03,261 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:27:03,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:03,314 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:03,315 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905729245] [2019-10-22 11:27:03,315 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [161106579] [2019-10-22 11:27:03,315 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2be08f55-d2a1-4e95-b369-54ee49fb2c38/bin/utaipan/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 [2019-10-22 11:27:03,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:03,440 INFO L256 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:27:03,446 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:27:03,494 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:03,496 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:27:03,526 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:03,527 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1877978166] [2019-10-22 11:27:03,534 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 52 [2019-10-22 11:27:03,581 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2019-10-22 11:27:03,581 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-22 11:27:04,067 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:27:04,068 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: inappropriate decl info IMPLEMENTATION at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Boogie2SmtSymbolTable.getBoogieVar(Boogie2SmtSymbolTable.java:222) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.getBoogieVar(NonrelationalStatementProcessor.java:348) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.handleHavocStatement(NonrelationalStatementProcessor.java:325) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.processStatement(NonrelationalStatementProcessor.java:159) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:138) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:107) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:422) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:413) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:140) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.applyInternally(CompoundDomainPostOperator.java:306) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:131) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormanCachedPostOperation.restoreOriginalStateVariables(PoormanCachedPostOperation.java:322) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.applyPost(PoormansAbstractPostOperator.java:217) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:120) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.absint.DisjunctiveAbstractState.lambda$17(DisjunctiveAbstractState.java:323) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.absint.DisjunctiveAbstractState.mapCollection(DisjunctiveAbstractState.java:519) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.absint.DisjunctiveAbstractState.apply(DisjunctiveAbstractState.java:323) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.calculateAbstractPost(FixpointEngine.java:249) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.calculateFixpoint(FixpointEngine.java:134) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.run(FixpointEngine.java:105) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.tool.AbstractInterpreter.runWithoutTimeoutAndResults(AbstractInterpreter.java:149) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner.generateFixpoints(CegarAbsIntRunner.java:227) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner.(CegarAbsIntRunner.java:158) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleAbstractInterpretation.getOrConstructRunner(IpTcStrategyModuleAbstractInterpretation.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleAbstractInterpretation.construct(IpTcStrategyModuleAbstractInterpretation.java:81) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:299) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:184) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-10-22 11:27:04,074 INFO L168 Benchmark]: Toolchain (without parser) took 4623.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.1 MB). Free memory was 939.7 MB in the beginning and 1.0 GB in the end (delta: -67.5 MB). Peak memory consumption was 95.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:04,074 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 958.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:27:04,076 INFO L168 Benchmark]: CACSL2BoogieTranslator took 615.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.1 MB). Free memory was 934.3 MB in the beginning and 1.1 GB in the end (delta: -211.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:04,076 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.17 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:04,077 INFO L168 Benchmark]: Boogie Preprocessor took 45.69 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. [2019-10-22 11:27:04,077 INFO L168 Benchmark]: RCFGBuilder took 730.99 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: 60.0 MB). Peak memory consumption was 60.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:04,078 INFO L168 Benchmark]: TraceAbstraction took 3155.67 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: 73.0 MB). Peak memory consumption was 73.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:04,084 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 958.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 615.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.1 MB). Free memory was 934.3 MB in the beginning and 1.1 GB in the end (delta: -211.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 69.17 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 45.69 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 730.99 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: 60.0 MB). Peak memory consumption was 60.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3155.67 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: 73.0 MB). Peak memory consumption was 73.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: inappropriate decl info IMPLEMENTATION de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: inappropriate decl info IMPLEMENTATION: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Boogie2SmtSymbolTable.getBoogieVar(Boogie2SmtSymbolTable.java:222) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-10-22 11:27:06,291 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:27:06,295 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:27:06,306 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:27:06,307 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:27:06,308 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:27:06,310 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:27:06,311 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:27:06,313 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:27:06,313 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:27:06,314 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:27:06,315 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:27:06,315 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:27:06,316 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:27:06,317 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:27:06,318 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:27:06,319 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:27:06,319 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:27:06,327 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:27:06,329 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:27:06,335 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:27:06,339 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:27:06,340 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:27:06,341 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:27:06,342 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:27:06,343 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:27:06,343 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:27:06,343 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:27:06,344 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:27:06,345 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:27:06,345 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:27:06,346 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:27:06,346 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:27:06,347 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:27:06,348 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:27:06,348 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:27:06,349 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:27:06,349 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:27:06,349 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:27:06,350 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:27:06,350 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:27:06,351 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_2be08f55-d2a1-4e95-b369-54ee49fb2c38/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-10-22 11:27:06,364 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:27:06,364 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:27:06,365 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:27:06,365 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:27:06,365 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:27:06,365 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:27:06,365 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:27:06,365 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:27:06,366 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:27:06,366 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:27:06,366 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:27:06,367 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:27:06,367 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:27:06,367 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:27:06,367 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:27:06,367 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:27:06,367 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 11:27:06,368 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 11:27:06,368 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:27:06,368 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:27:06,369 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 11:27:06,369 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:27:06,369 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:27:06,369 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:27:06,369 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:27:06,369 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:27:06,370 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:27:06,370 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:27:06,370 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:27:06,370 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:27:06,370 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-10-22 11:27:06,370 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 11:27:06,371 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:27:06,371 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:27:06,371 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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/working_dir_2be08f55-d2a1-4e95-b369-54ee49fb2c38/bin/utaipan 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 -> Taipan 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 -> 426d9f957077f660214567f7d0d5aaa1a30c29c0 [2019-10-22 11:27:06,400 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:27:06,410 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:27:06,413 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:27:06,415 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:27:06,415 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:27:06,416 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_2be08f55-d2a1-4e95-b369-54ee49fb2c38/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec5_product35.cil.c [2019-10-22 11:27:06,474 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2be08f55-d2a1-4e95-b369-54ee49fb2c38/bin/utaipan/data/2c35312ed/b74849bb51cf4e5697973d7f6b9b63e6/FLAG113629191 [2019-10-22 11:27:06,933 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:27:06,936 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_2be08f55-d2a1-4e95-b369-54ee49fb2c38/sv-benchmarks/c/product-lines/minepump_spec5_product35.cil.c [2019-10-22 11:27:06,946 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2be08f55-d2a1-4e95-b369-54ee49fb2c38/bin/utaipan/data/2c35312ed/b74849bb51cf4e5697973d7f6b9b63e6/FLAG113629191 [2019-10-22 11:27:07,449 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_2be08f55-d2a1-4e95-b369-54ee49fb2c38/bin/utaipan/data/2c35312ed/b74849bb51cf4e5697973d7f6b9b63e6 [2019-10-22 11:27:07,452 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:27:07,453 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:27:07,454 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:27:07,454 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:27:07,458 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:27:07,458 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:27:07" (1/1) ... [2019-10-22 11:27:07,461 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51f168e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:07, skipping insertion in model container [2019-10-22 11:27:07,462 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:27:07" (1/1) ... [2019-10-22 11:27:07,469 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:27:07,518 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:27:07,996 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:27:08,018 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:27:08,125 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:27:08,159 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:27:08,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:08 WrapperNode [2019-10-22 11:27:08,159 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:27:08,160 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:27:08,160 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:27:08,160 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:27:08,169 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:08" (1/1) ... [2019-10-22 11:27:08,190 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:08" (1/1) ... [2019-10-22 11:27:08,232 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:27:08,237 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:27:08,237 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:27:08,238 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:27:08,248 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:08" (1/1) ... [2019-10-22 11:27:08,248 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:08" (1/1) ... [2019-10-22 11:27:08,252 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:08" (1/1) ... [2019-10-22 11:27:08,252 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:08" (1/1) ... [2019-10-22 11:27:08,263 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:08" (1/1) ... [2019-10-22 11:27:08,274 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:08" (1/1) ... [2019-10-22 11:27:08,286 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:08" (1/1) ... [2019-10-22 11:27:08,290 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:27:08,290 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:27:08,290 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:27:08,290 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:27:08,291 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2be08f55-d2a1-4e95-b369-54ee49fb2c38/bin/utaipan/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 [2019-10-22 11:27:08,360 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:27:08,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-10-22 11:27:08,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:27:08,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:27:09,290 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:27:09,291 INFO L284 CfgBuilder]: Removed 114 assume(true) statements. [2019-10-22 11:27:09,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:27:09 BoogieIcfgContainer [2019-10-22 11:27:09,292 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:27:09,293 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:27:09,293 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:27:09,296 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:27:09,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:27:07" (1/3) ... [2019-10-22 11:27:09,297 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2235c93e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:27:09, skipping insertion in model container [2019-10-22 11:27:09,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:08" (2/3) ... [2019-10-22 11:27:09,297 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2235c93e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:27:09, skipping insertion in model container [2019-10-22 11:27:09,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:27:09" (3/3) ... [2019-10-22 11:27:09,299 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product35.cil.c [2019-10-22 11:27:09,311 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:27:09,321 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-22 11:27:09,329 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-22 11:27:09,350 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:27:09,350 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:27:09,350 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:27:09,350 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:27:09,351 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:27:09,351 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:27:09,351 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:27:09,351 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:27:09,363 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states. [2019-10-22 11:27:09,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 11:27:09,370 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:09,371 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:27:09,373 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:27:09,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:09,377 INFO L82 PathProgramCache]: Analyzing trace with hash -950357280, now seen corresponding path program 1 times [2019-10-22 11:27:09,387 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:27:09,388 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1178341670] [2019-10-22 11:27:09,388 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2be08f55-d2a1-4e95-b369-54ee49fb2c38/bin/utaipan/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:27:09,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:09,632 INFO L256 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 1 conjunts are in the unsatisfiable core [2019-10-22 11:27:09,637 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:27:09,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:09,657 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:27:09,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:09,670 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1178341670] [2019-10-22 11:27:09,671 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:09,671 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-10-22 11:27:09,671 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127123979] [2019-10-22 11:27:09,676 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 11:27:09,676 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:27:09,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 11:27:09,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:27:09,699 INFO L87 Difference]: Start difference. First operand 89 states. Second operand 2 states. [2019-10-22 11:27:09,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:09,732 INFO L93 Difference]: Finished difference Result 171 states and 256 transitions. [2019-10-22 11:27:09,732 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 11:27:09,733 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2019-10-22 11:27:09,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:09,750 INFO L225 Difference]: With dead ends: 171 [2019-10-22 11:27:09,750 INFO L226 Difference]: Without dead ends: 85 [2019-10-22 11:27:09,753 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:27:09,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2019-10-22 11:27:09,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2019-10-22 11:27:09,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2019-10-22 11:27:09,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 120 transitions. [2019-10-22 11:27:09,791 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 120 transitions. Word has length 19 [2019-10-22 11:27:09,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:09,792 INFO L462 AbstractCegarLoop]: Abstraction has 85 states and 120 transitions. [2019-10-22 11:27:09,792 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 11:27:09,792 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 120 transitions. [2019-10-22 11:27:09,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-22 11:27:09,793 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:09,793 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:27:09,994 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:27:09,995 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:27:09,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:09,995 INFO L82 PathProgramCache]: Analyzing trace with hash -552380079, now seen corresponding path program 1 times [2019-10-22 11:27:09,996 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:27:09,996 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [395383687] [2019-10-22 11:27:09,996 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2be08f55-d2a1-4e95-b369-54ee49fb2c38/bin/utaipan/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:27:10,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:10,215 INFO L256 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 11:27:10,217 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:27:10,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:10,251 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:27:10,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:10,271 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [395383687] [2019-10-22 11:27:10,272 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:10,275 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-10-22 11:27:10,276 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11468629] [2019-10-22 11:27:10,277 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:27:10,278 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:27:10,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:27:10,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:27:10,278 INFO L87 Difference]: Start difference. First operand 85 states and 120 transitions. Second operand 4 states. [2019-10-22 11:27:10,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:10,361 INFO L93 Difference]: Finished difference Result 298 states and 426 transitions. [2019-10-22 11:27:10,361 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 11:27:10,361 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2019-10-22 11:27:10,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:10,364 INFO L225 Difference]: With dead ends: 298 [2019-10-22 11:27:10,364 INFO L226 Difference]: Without dead ends: 220 [2019-10-22 11:27:10,365 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:27:10,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2019-10-22 11:27:10,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 134. [2019-10-22 11:27:10,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2019-10-22 11:27:10,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 191 transitions. [2019-10-22 11:27:10,388 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 191 transitions. Word has length 20 [2019-10-22 11:27:10,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:10,388 INFO L462 AbstractCegarLoop]: Abstraction has 134 states and 191 transitions. [2019-10-22 11:27:10,388 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:27:10,389 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 191 transitions. [2019-10-22 11:27:10,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-10-22 11:27:10,389 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:10,390 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:27:10,590 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:27:10,591 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:27:10,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:10,591 INFO L82 PathProgramCache]: Analyzing trace with hash 202391938, now seen corresponding path program 1 times [2019-10-22 11:27:10,591 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:27:10,592 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1483394101] [2019-10-22 11:27:10,592 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2be08f55-d2a1-4e95-b369-54ee49fb2c38/bin/utaipan/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:27:10,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:10,736 INFO L256 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 11:27:10,738 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:27:10,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:10,744 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:27:10,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:10,746 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1483394101] [2019-10-22 11:27:10,747 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:10,747 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-10-22 11:27:10,747 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892184738] [2019-10-22 11:27:10,747 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:27:10,747 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:27:10,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:27:10,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:27:10,748 INFO L87 Difference]: Start difference. First operand 134 states and 191 transitions. Second operand 3 states. [2019-10-22 11:27:10,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:10,891 INFO L93 Difference]: Finished difference Result 314 states and 445 transitions. [2019-10-22 11:27:10,892 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:27:10,893 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2019-10-22 11:27:10,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:10,894 INFO L225 Difference]: With dead ends: 314 [2019-10-22 11:27:10,895 INFO L226 Difference]: Without dead ends: 187 [2019-10-22 11:27:10,895 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:27:10,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2019-10-22 11:27:10,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 181. [2019-10-22 11:27:10,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2019-10-22 11:27:10,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 248 transitions. [2019-10-22 11:27:10,945 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 248 transitions. Word has length 21 [2019-10-22 11:27:10,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:10,946 INFO L462 AbstractCegarLoop]: Abstraction has 181 states and 248 transitions. [2019-10-22 11:27:10,946 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:27:10,946 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 248 transitions. [2019-10-22 11:27:10,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-22 11:27:10,947 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:10,947 INFO L380 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] [2019-10-22 11:27:11,148 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:27:11,148 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:27:11,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:11,149 INFO L82 PathProgramCache]: Analyzing trace with hash 401625201, now seen corresponding path program 1 times [2019-10-22 11:27:11,149 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:27:11,149 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1327537314] [2019-10-22 11:27:11,150 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2be08f55-d2a1-4e95-b369-54ee49fb2c38/bin/utaipan/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:27:11,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:11,296 INFO L256 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:27:11,297 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:27:11,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:11,321 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:27:11,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:11,330 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1327537314] [2019-10-22 11:27:11,330 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:11,330 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-10-22 11:27:11,330 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822615825] [2019-10-22 11:27:11,331 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:27:11,331 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:27:11,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:27:11,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:27:11,332 INFO L87 Difference]: Start difference. First operand 181 states and 248 transitions. Second operand 5 states. [2019-10-22 11:27:11,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:11,481 INFO L93 Difference]: Finished difference Result 541 states and 733 transitions. [2019-10-22 11:27:11,482 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:27:11,482 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2019-10-22 11:27:11,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:11,484 INFO L225 Difference]: With dead ends: 541 [2019-10-22 11:27:11,484 INFO L226 Difference]: Without dead ends: 367 [2019-10-22 11:27:11,486 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:27:11,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2019-10-22 11:27:11,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 190. [2019-10-22 11:27:11,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2019-10-22 11:27:11,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 257 transitions. [2019-10-22 11:27:11,527 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 257 transitions. Word has length 27 [2019-10-22 11:27:11,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:11,528 INFO L462 AbstractCegarLoop]: Abstraction has 190 states and 257 transitions. [2019-10-22 11:27:11,531 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:27:11,531 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 257 transitions. [2019-10-22 11:27:11,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-22 11:27:11,532 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:11,533 INFO L380 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] [2019-10-22 11:27:11,733 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:27:11,734 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:27:11,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:11,734 INFO L82 PathProgramCache]: Analyzing trace with hash 1335088910, now seen corresponding path program 1 times [2019-10-22 11:27:11,735 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:27:11,735 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1794821007] [2019-10-22 11:27:11,735 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2be08f55-d2a1-4e95-b369-54ee49fb2c38/bin/utaipan/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:27:11,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:11,906 INFO L256 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:27:11,908 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:27:11,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:11,930 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:27:11,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:11,935 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1794821007] [2019-10-22 11:27:11,935 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:11,935 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-10-22 11:27:11,936 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812640601] [2019-10-22 11:27:11,936 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:27:11,937 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:27:11,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:27:11,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:27:11,937 INFO L87 Difference]: Start difference. First operand 190 states and 257 transitions. Second operand 5 states. [2019-10-22 11:27:12,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:12,350 INFO L93 Difference]: Finished difference Result 633 states and 843 transitions. [2019-10-22 11:27:12,350 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 11:27:12,351 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2019-10-22 11:27:12,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:12,353 INFO L225 Difference]: With dead ends: 633 [2019-10-22 11:27:12,353 INFO L226 Difference]: Without dead ends: 450 [2019-10-22 11:27:12,353 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-22 11:27:12,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2019-10-22 11:27:12,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 184. [2019-10-22 11:27:12,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2019-10-22 11:27:12,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 239 transitions. [2019-10-22 11:27:12,386 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 239 transitions. Word has length 27 [2019-10-22 11:27:12,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:12,386 INFO L462 AbstractCegarLoop]: Abstraction has 184 states and 239 transitions. [2019-10-22 11:27:12,387 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:27:12,387 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 239 transitions. [2019-10-22 11:27:12,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-22 11:27:12,388 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:12,388 INFO L380 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] [2019-10-22 11:27:12,592 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:27:12,592 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:27:12,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:12,593 INFO L82 PathProgramCache]: Analyzing trace with hash 1102689779, now seen corresponding path program 1 times [2019-10-22 11:27:12,593 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:27:12,593 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [945429641] [2019-10-22 11:27:12,593 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2be08f55-d2a1-4e95-b369-54ee49fb2c38/bin/utaipan/cvc4 Starting monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:27:12,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:12,748 INFO L256 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:27:12,749 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:27:12,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:12,768 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:27:12,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:12,787 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [945429641] [2019-10-22 11:27:12,787 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:12,787 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-10-22 11:27:12,787 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922527255] [2019-10-22 11:27:12,788 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:27:12,789 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:27:12,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:27:12,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:27:12,790 INFO L87 Difference]: Start difference. First operand 184 states and 239 transitions. Second operand 6 states. [2019-10-22 11:27:12,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:12,929 INFO L93 Difference]: Finished difference Result 558 states and 717 transitions. [2019-10-22 11:27:12,929 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:27:12,929 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2019-10-22 11:27:12,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:12,931 INFO L225 Difference]: With dead ends: 558 [2019-10-22 11:27:12,932 INFO L226 Difference]: Without dead ends: 381 [2019-10-22 11:27:12,932 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:27:12,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2019-10-22 11:27:12,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 190. [2019-10-22 11:27:12,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2019-10-22 11:27:12,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 245 transitions. [2019-10-22 11:27:12,962 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 245 transitions. Word has length 27 [2019-10-22 11:27:12,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:12,963 INFO L462 AbstractCegarLoop]: Abstraction has 190 states and 245 transitions. [2019-10-22 11:27:12,963 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:27:12,963 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 245 transitions. [2019-10-22 11:27:12,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-22 11:27:12,966 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:12,966 INFO L380 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] [2019-10-22 11:27:13,167 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:27:13,167 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:27:13,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:13,168 INFO L82 PathProgramCache]: Analyzing trace with hash 515883765, now seen corresponding path program 1 times [2019-10-22 11:27:13,168 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:27:13,168 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [228174422] [2019-10-22 11:27:13,169 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2be08f55-d2a1-4e95-b369-54ee49fb2c38/bin/utaipan/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:27:13,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:13,439 INFO L256 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 11:27:13,441 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:27:13,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:13,457 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:27:13,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:13,469 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [228174422] [2019-10-22 11:27:13,469 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:13,469 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-10-22 11:27:13,469 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290463585] [2019-10-22 11:27:13,470 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:27:13,470 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:27:13,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:27:13,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:27:13,471 INFO L87 Difference]: Start difference. First operand 190 states and 245 transitions. Second operand 4 states. [2019-10-22 11:27:13,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:13,489 INFO L93 Difference]: Finished difference Result 190 states and 245 transitions. [2019-10-22 11:27:13,489 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:27:13,490 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 27 [2019-10-22 11:27:13,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:13,490 INFO L225 Difference]: With dead ends: 190 [2019-10-22 11:27:13,491 INFO L226 Difference]: Without dead ends: 87 [2019-10-22 11:27:13,491 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:27:13,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2019-10-22 11:27:13,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2019-10-22 11:27:13,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2019-10-22 11:27:13,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 117 transitions. [2019-10-22 11:27:13,504 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 117 transitions. Word has length 27 [2019-10-22 11:27:13,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:13,505 INFO L462 AbstractCegarLoop]: Abstraction has 87 states and 117 transitions. [2019-10-22 11:27:13,505 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:27:13,505 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 117 transitions. [2019-10-22 11:27:13,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-10-22 11:27:13,506 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:13,506 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:27:13,706 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:27:13,707 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:27:13,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:13,707 INFO L82 PathProgramCache]: Analyzing trace with hash 1969547406, now seen corresponding path program 1 times [2019-10-22 11:27:13,708 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:27:13,708 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [556197962] [2019-10-22 11:27:13,708 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2be08f55-d2a1-4e95-b369-54ee49fb2c38/bin/utaipan/cvc4 Starting monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:27:14,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:14,015 INFO L256 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 11:27:14,016 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:27:14,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:14,026 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:27:14,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:14,039 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [556197962] [2019-10-22 11:27:14,039 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:14,039 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-10-22 11:27:14,039 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402027845] [2019-10-22 11:27:14,040 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:27:14,046 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:27:14,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:27:14,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:27:14,046 INFO L87 Difference]: Start difference. First operand 87 states and 117 transitions. Second operand 4 states. [2019-10-22 11:27:14,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:14,171 INFO L93 Difference]: Finished difference Result 289 states and 393 transitions. [2019-10-22 11:27:14,172 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 11:27:14,172 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2019-10-22 11:27:14,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:14,173 INFO L225 Difference]: With dead ends: 289 [2019-10-22 11:27:14,173 INFO L226 Difference]: Without dead ends: 209 [2019-10-22 11:27:14,174 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:27:14,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2019-10-22 11:27:14,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 158. [2019-10-22 11:27:14,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2019-10-22 11:27:14,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 213 transitions. [2019-10-22 11:27:14,202 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 213 transitions. Word has length 33 [2019-10-22 11:27:14,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:14,203 INFO L462 AbstractCegarLoop]: Abstraction has 158 states and 213 transitions. [2019-10-22 11:27:14,203 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:27:14,203 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 213 transitions. [2019-10-22 11:27:14,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-10-22 11:27:14,205 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:14,205 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:27:14,406 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:27:14,406 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:27:14,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:14,407 INFO L82 PathProgramCache]: Analyzing trace with hash -430787762, now seen corresponding path program 1 times [2019-10-22 11:27:14,407 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:27:14,407 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1657106436] [2019-10-22 11:27:14,408 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2be08f55-d2a1-4e95-b369-54ee49fb2c38/bin/utaipan/cvc4 Starting monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:27:14,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:14,563 INFO L256 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-22 11:27:14,564 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:27:14,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:14,597 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:27:14,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:14,603 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1657106436] [2019-10-22 11:27:14,603 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:14,603 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-10-22 11:27:14,604 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033999857] [2019-10-22 11:27:14,604 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:27:14,604 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:27:14,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:27:14,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:27:14,605 INFO L87 Difference]: Start difference. First operand 158 states and 213 transitions. Second operand 6 states. [2019-10-22 11:27:15,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:15,067 INFO L93 Difference]: Finished difference Result 782 states and 1069 transitions. [2019-10-22 11:27:15,068 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-22 11:27:15,068 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2019-10-22 11:27:15,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:15,070 INFO L225 Difference]: With dead ends: 782 [2019-10-22 11:27:15,070 INFO L226 Difference]: Without dead ends: 631 [2019-10-22 11:27:15,071 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2019-10-22 11:27:15,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2019-10-22 11:27:15,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 298. [2019-10-22 11:27:15,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2019-10-22 11:27:15,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 397 transitions. [2019-10-22 11:27:15,109 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 397 transitions. Word has length 34 [2019-10-22 11:27:15,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:15,109 INFO L462 AbstractCegarLoop]: Abstraction has 298 states and 397 transitions. [2019-10-22 11:27:15,109 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:27:15,109 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 397 transitions. [2019-10-22 11:27:15,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-22 11:27:15,110 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:15,110 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:27:15,311 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:27:15,311 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:27:15,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:15,311 INFO L82 PathProgramCache]: Analyzing trace with hash -915518735, now seen corresponding path program 1 times [2019-10-22 11:27:15,312 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:27:15,312 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [92110330] [2019-10-22 11:27:15,312 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2be08f55-d2a1-4e95-b369-54ee49fb2c38/bin/utaipan/cvc4 Starting monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:27:15,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:15,453 INFO L256 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-22 11:27:15,455 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:27:15,477 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:15,477 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:27:15,506 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:15,506 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [92110330] [2019-10-22 11:27:15,506 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2085088150] [2019-10-22 11:27:15,506 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2be08f55-d2a1-4e95-b369-54ee49fb2c38/bin/utaipan/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:27:15,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:15,625 INFO L256 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:27:15,627 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:27:15,637 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:15,637 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:27:15,652 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:15,653 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-22 11:27:15,653 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5] total 8 [2019-10-22 11:27:15,653 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176884060] [2019-10-22 11:27:15,654 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 11:27:15,656 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:27:15,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 11:27:15,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:27:15,658 INFO L87 Difference]: Start difference. First operand 298 states and 397 transitions. Second operand 8 states. [2019-10-22 11:27:16,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:16,059 INFO L93 Difference]: Finished difference Result 662 states and 889 transitions. [2019-10-22 11:27:16,059 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-22 11:27:16,059 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 51 [2019-10-22 11:27:16,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:16,061 INFO L225 Difference]: With dead ends: 662 [2019-10-22 11:27:16,061 INFO L226 Difference]: Without dead ends: 371 [2019-10-22 11:27:16,062 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2019-10-22 11:27:16,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2019-10-22 11:27:16,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 304. [2019-10-22 11:27:16,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 304 states. [2019-10-22 11:27:16,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 392 transitions. [2019-10-22 11:27:16,104 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 392 transitions. Word has length 51 [2019-10-22 11:27:16,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:16,105 INFO L462 AbstractCegarLoop]: Abstraction has 304 states and 392 transitions. [2019-10-22 11:27:16,105 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 11:27:16,105 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 392 transitions. [2019-10-22 11:27:16,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-10-22 11:27:16,106 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:16,107 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:27:16,508 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,11 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:27:16,508 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:27:16,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:16,508 INFO L82 PathProgramCache]: Analyzing trace with hash -833652910, now seen corresponding path program 1 times [2019-10-22 11:27:16,509 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:27:16,509 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1596397851] [2019-10-22 11:27:16,509 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2be08f55-d2a1-4e95-b369-54ee49fb2c38/bin/utaipan/cvc4 Starting monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:27:16,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:16,682 INFO L256 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 11:27:16,684 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:27:16,705 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2019-10-22 11:27:16,705 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:27:16,715 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2019-10-22 11:27:16,715 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1596397851] [2019-10-22 11:27:16,715 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:16,716 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-10-22 11:27:16,716 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799102807] [2019-10-22 11:27:16,716 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:27:16,716 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:27:16,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:27:16,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:27:16,717 INFO L87 Difference]: Start difference. First operand 304 states and 392 transitions. Second operand 3 states. [2019-10-22 11:27:16,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:16,981 INFO L93 Difference]: Finished difference Result 542 states and 700 transitions. [2019-10-22 11:27:16,982 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:27:16,982 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 93 [2019-10-22 11:27:16,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:16,984 INFO L225 Difference]: With dead ends: 542 [2019-10-22 11:27:16,984 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 11:27:16,985 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:27:16,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 11:27:16,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 11:27:16,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 11:27:16,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 11:27:16,986 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 93 [2019-10-22 11:27:16,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:16,986 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 11:27:16,986 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:27:16,986 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 11:27:16,986 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 11:27:17,187 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:27:17,192 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 11:27:17,483 WARN L191 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 60 [2019-10-22 11:27:17,594 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 72 [2019-10-22 11:27:17,737 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 60 [2019-10-22 11:27:18,380 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 28 [2019-10-22 11:27:18,626 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 27 [2019-10-22 11:27:18,894 WARN L191 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 6 [2019-10-22 11:27:19,088 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 30 [2019-10-22 11:27:19,272 WARN L191 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 31 [2019-10-22 11:27:19,480 WARN L191 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 24 [2019-10-22 11:27:19,587 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 26 [2019-10-22 11:27:19,839 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 28 [2019-10-22 11:27:20,065 WARN L191 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 33 [2019-10-22 11:27:20,200 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 27 [2019-10-22 11:27:20,382 WARN L191 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 32 [2019-10-22 11:27:20,396 INFO L443 ceAbstractionStarter]: For program point L597(lines 597 610) no Hoare annotation was computed. [2019-10-22 11:27:20,397 INFO L439 ceAbstractionStarter]: At program point L878(lines 863 881) the Hoare annotation is: (let ((.cse1 (= (_ bv0 32) ~pumpRunning~0)) (.cse2 (not (= ~systemActive~0 (_ bv0 32)))) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)))) (or (and (and .cse0 (and .cse1 .cse2 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv0 32)) (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 (_ bv0 32)) (not (= ULTIMATE.start_isHighWaterLevel_~tmp~6 (_ bv0 32))))) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) (and .cse1 (= (_ bv2 32) ~waterLevel~0) .cse2 .cse0))) [2019-10-22 11:27:20,397 INFO L439 ceAbstractionStarter]: At program point L878-1(lines 863 881) the Hoare annotation is: false [2019-10-22 11:27:20,397 INFO L439 ceAbstractionStarter]: At program point L878-2(lines 863 881) the Hoare annotation is: false [2019-10-22 11:27:20,397 INFO L443 ceAbstractionStarter]: For program point L647(lines 647 651) no Hoare annotation was computed. [2019-10-22 11:27:20,397 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 11:27:20,397 INFO L439 ceAbstractionStarter]: At program point L615(lines 566 616) the Hoare annotation is: false [2019-10-22 11:27:20,397 INFO L443 ceAbstractionStarter]: For program point L929(lines 929 939) no Hoare annotation was computed. [2019-10-22 11:27:20,398 INFO L443 ceAbstractionStarter]: For program point L929-2(lines 929 939) no Hoare annotation was computed. [2019-10-22 11:27:20,398 INFO L443 ceAbstractionStarter]: For program point L929-4(lines 929 939) no Hoare annotation was computed. [2019-10-22 11:27:20,398 INFO L443 ceAbstractionStarter]: For program point L930(lines 930 936) no Hoare annotation was computed. [2019-10-22 11:27:20,398 INFO L443 ceAbstractionStarter]: For program point L930-2(lines 930 936) no Hoare annotation was computed. [2019-10-22 11:27:20,398 INFO L443 ceAbstractionStarter]: For program point L930-4(lines 930 936) no Hoare annotation was computed. [2019-10-22 11:27:20,398 INFO L439 ceAbstractionStarter]: At program point L914(lines 738 744) the Hoare annotation is: (let ((.cse4 (= ~systemActive~0 (_ bv0 32)))) (let ((.cse2 (= (_ bv0 32) ~pumpRunning~0)) (.cse5 (not .cse4)) (.cse3 (= (_ bv0 32) |ULTIMATE.start_isPumpRunning_#res|))) (let ((.cse0 (and .cse2 .cse5 .cse3)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)))) (or (and (and .cse0 .cse1) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) (and (and (and .cse2 .cse3) .cse1) .cse4) (and (= (_ bv1 32) ~pumpRunning~0) (= (_ bv1 32) ~switchedOnBeforeTS~0) .cse5 (= (_ bv1 32) |ULTIMATE.start_isPumpRunning_#res|) .cse1) (and .cse0 (= (_ bv2 32) ~waterLevel~0) .cse1))))) [2019-10-22 11:27:20,398 INFO L439 ceAbstractionStarter]: At program point L914-1(lines 738 744) the Hoare annotation is: false [2019-10-22 11:27:20,399 INFO L439 ceAbstractionStarter]: At program point L914-2(lines 738 744) the Hoare annotation is: false [2019-10-22 11:27:20,399 INFO L439 ceAbstractionStarter]: At program point L551(lines 546 554) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) [2019-10-22 11:27:20,399 INFO L443 ceAbstractionStarter]: For program point L568(lines 567 614) no Hoare annotation was computed. [2019-10-22 11:27:20,399 INFO L439 ceAbstractionStarter]: At program point L717(lines 708 721) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (not (= ~systemActive~0 (_ bv0 32)))) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)))) (or (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) .cse0 .cse1 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) .cse2) (and .cse0 (= (_ bv2 32) ~waterLevel~0) .cse1 .cse2))) [2019-10-22 11:27:20,399 INFO L439 ceAbstractionStarter]: At program point L717-1(lines 708 721) the Hoare annotation is: false [2019-10-22 11:27:20,399 INFO L439 ceAbstractionStarter]: At program point L717-2(lines 708 721) the Hoare annotation is: false [2019-10-22 11:27:20,399 INFO L443 ceAbstractionStarter]: For program point L635(lines 635 639) no Hoare annotation was computed. [2019-10-22 11:27:20,399 INFO L443 ceAbstractionStarter]: For program point L569(lines 569 573) no Hoare annotation was computed. [2019-10-22 11:27:20,400 INFO L443 ceAbstractionStarter]: For program point L635-3(lines 635 639) no Hoare annotation was computed. [2019-10-22 11:27:20,400 INFO L443 ceAbstractionStarter]: For program point L635-6(lines 635 639) no Hoare annotation was computed. [2019-10-22 11:27:20,400 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 11:27:20,401 INFO L443 ceAbstractionStarter]: For program point L603(lines 603 609) no Hoare annotation was computed. [2019-10-22 11:27:20,401 INFO L439 ceAbstractionStarter]: At program point L603-1(lines 603 609) the Hoare annotation is: (let ((.cse2 (= ~systemActive~0 (_ bv0 32)))) (let ((.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse4 (not .cse2))) (let ((.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse3 (and .cse0 .cse4))) (or (and (and .cse0 .cse1) .cse2) (and (and .cse1 .cse3) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) (and (= (_ bv1 32) ~pumpRunning~0) .cse4 .cse1) (and (= (_ bv2 32) ~waterLevel~0) .cse1 .cse3))))) [2019-10-22 11:27:20,401 INFO L443 ceAbstractionStarter]: For program point L141(lines 141 148) no Hoare annotation was computed. [2019-10-22 11:27:20,401 INFO L446 ceAbstractionStarter]: At program point L141-1(lines 141 148) the Hoare annotation is: true [2019-10-22 11:27:20,401 INFO L443 ceAbstractionStarter]: For program point L587(lines 587 593) no Hoare annotation was computed. [2019-10-22 11:27:20,401 INFO L439 ceAbstractionStarter]: At program point L587-1(lines 587 593) the Hoare annotation is: (let ((.cse3 (= ~systemActive~0 (_ bv0 32)))) (let ((.cse2 (= (_ bv0 32) ~pumpRunning~0)) (.cse4 (not .cse3))) (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (and .cse2 .cse4))) (or (and (and .cse0 .cse1) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) (and (and (and .cse2 (= (_ bv0 32) |ULTIMATE.start_isPumpRunning_#res|)) .cse0) .cse3) (and (= (_ bv1 32) ~pumpRunning~0) .cse4 .cse0) (and (= (_ bv2 32) ~waterLevel~0) .cse0 .cse1))))) [2019-10-22 11:27:20,401 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 44) no Hoare annotation was computed. [2019-10-22 11:27:20,402 INFO L443 ceAbstractionStarter]: For program point L770(lines 770 787) no Hoare annotation was computed. [2019-10-22 11:27:20,402 INFO L443 ceAbstractionStarter]: For program point L770-1(lines 770 787) no Hoare annotation was computed. [2019-10-22 11:27:20,402 INFO L439 ceAbstractionStarter]: At program point L704(lines 699 707) the Hoare annotation is: (let ((.cse7 (= ~systemActive~0 (_ bv0 32)))) (let ((.cse6 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (not .cse7))) (let ((.cse0 (= (_ bv1 32) ~pumpRunning~0)) (.cse3 (= (_ bv2 32) ~waterLevel~0)) (.cse5 (and (= ULTIMATE.start_processEnvironment_~tmp~5 (_ bv0 32)) .cse6 .cse1)) (.cse4 (= (_ bv2 32) |ULTIMATE.start_getWaterLevel_#res|)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)))) (or (and .cse0 (= (_ bv1 32) ~switchedOnBeforeTS~0) (= (_ bv1 32) |ULTIMATE.start_isPumpRunning_#res|) .cse1 .cse2) (and .cse0 .cse3 .cse1 .cse2 .cse4) (and (and .cse5 .cse2) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) (and .cse3 .cse5 .cse2 .cse4) (and .cse6 (= (_ bv0 32) |ULTIMATE.start_isPumpRunning_#res|) .cse7 .cse2))))) [2019-10-22 11:27:20,402 INFO L443 ceAbstractionStarter]: For program point L770-2(lines 770 787) no Hoare annotation was computed. [2019-10-22 11:27:20,402 INFO L439 ceAbstractionStarter]: At program point L704-1(lines 699 707) the Hoare annotation is: false [2019-10-22 11:27:20,402 INFO L439 ceAbstractionStarter]: At program point L704-2(lines 699 707) the Hoare annotation is: false [2019-10-22 11:27:20,402 INFO L443 ceAbstractionStarter]: For program point L886(lines 886 892) no Hoare annotation was computed. [2019-10-22 11:27:20,403 INFO L439 ceAbstractionStarter]: At program point L886-1(lines 886 892) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) [2019-10-22 11:27:20,403 INFO L443 ceAbstractionStarter]: For program point L44(line 44) no Hoare annotation was computed. [2019-10-22 11:27:20,403 INFO L443 ceAbstractionStarter]: For program point L44-1(line 44) no Hoare annotation was computed. [2019-10-22 11:27:20,403 INFO L443 ceAbstractionStarter]: For program point L44-2(line 44) no Hoare annotation was computed. [2019-10-22 11:27:20,403 INFO L439 ceAbstractionStarter]: At program point L738(lines 734 756) the Hoare annotation is: (let ((.cse3 (= ~systemActive~0 (_ bv0 32)))) (let ((.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (not .cse3)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)))) (or (and .cse0 .cse1 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) .cse2) (and .cse0 (= (_ bv2 32) ~waterLevel~0) .cse1 .cse2) (and (and (and .cse0 (= (_ bv0 32) |ULTIMATE.start_isPumpRunning_#res|)) .cse2) .cse3) (and (= (_ bv1 32) ~pumpRunning~0) (= (_ bv1 32) ~switchedOnBeforeTS~0) .cse1 (= (_ bv1 32) |ULTIMATE.start_isPumpRunning_#res|) .cse2)))) [2019-10-22 11:27:20,403 INFO L439 ceAbstractionStarter]: At program point L738-1(lines 734 756) the Hoare annotation is: false [2019-10-22 11:27:20,403 INFO L439 ceAbstractionStarter]: At program point L738-2(lines 734 756) the Hoare annotation is: false [2019-10-22 11:27:20,403 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 11:27:20,404 INFO L439 ceAbstractionStarter]: At program point L61-2(lines 61 75) the Hoare annotation is: false [2019-10-22 11:27:20,404 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 44) no Hoare annotation was computed. [2019-10-22 11:27:20,405 INFO L439 ceAbstractionStarter]: At program point L904(lines 899 906) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) [2019-10-22 11:27:20,405 INFO L443 ceAbstractionStarter]: For program point L62(line 62) no Hoare annotation was computed. [2019-10-22 11:27:20,405 INFO L439 ceAbstractionStarter]: At program point L112(lines 108 114) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) [2019-10-22 11:27:20,405 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 44) no Hoare annotation was computed. [2019-10-22 11:27:20,405 INFO L443 ceAbstractionStarter]: For program point L872(lines 872 876) no Hoare annotation was computed. [2019-10-22 11:27:20,405 INFO L443 ceAbstractionStarter]: For program point L872-2(lines 872 876) no Hoare annotation was computed. [2019-10-22 11:27:20,405 INFO L443 ceAbstractionStarter]: For program point L872-3(lines 872 876) no Hoare annotation was computed. [2019-10-22 11:27:20,405 INFO L443 ceAbstractionStarter]: For program point L872-5(lines 872 876) no Hoare annotation was computed. [2019-10-22 11:27:20,405 INFO L443 ceAbstractionStarter]: For program point L872-6(lines 872 876) no Hoare annotation was computed. [2019-10-22 11:27:20,406 INFO L443 ceAbstractionStarter]: For program point L872-8(lines 872 876) no Hoare annotation was computed. [2019-10-22 11:27:20,406 INFO L439 ceAbstractionStarter]: At program point L823(lines 818 826) the Hoare annotation is: (let ((.cse2 (= ~systemActive~0 (_ bv0 32)))) (let ((.cse3 (= (_ bv0 32) ~pumpRunning~0)) (.cse5 (not .cse2)) (.cse4 (= (_ bv0 32) |ULTIMATE.start_isPumpRunning_#res|))) (let ((.cse0 (and .cse3 .cse5 .cse4)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)))) (or (and (and .cse0 .cse1) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) (and .cse2 (and (and .cse3 .cse4) .cse1)) (and .cse0 (= (_ bv2 32) ~waterLevel~0) .cse1) (and (= (_ bv1 32) ~pumpRunning~0) .cse5 (= (_ bv1 32) |ULTIMATE.start_isPumpRunning_#res|) .cse1))))) [2019-10-22 11:27:20,406 INFO L439 ceAbstractionStarter]: At program point L823-1(lines 818 826) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (= (_ bv0 32) |ULTIMATE.start_isPumpRunning_#res|)) (.cse3 (= ~systemActive~0 (_ bv0 32))) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)))) (or (and (= ULTIMATE.start_processEnvironment_~tmp~5 (_ bv0 32)) .cse0 .cse1 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) .cse2) (and (= (_ bv1 32) ~pumpRunning~0) (= (_ bv1 32) ~switchedOnBeforeTS~0) (not .cse3) (= (_ bv1 32) |ULTIMATE.start_isPumpRunning_#res|) .cse2) (and .cse0 .cse1 .cse3 .cse2))) [2019-10-22 11:27:20,406 INFO L439 ceAbstractionStarter]: At program point L823-2(lines 818 826) the Hoare annotation is: false [2019-10-22 11:27:20,406 INFO L439 ceAbstractionStarter]: At program point L823-3(lines 818 826) the Hoare annotation is: false [2019-10-22 11:27:20,406 INFO L439 ceAbstractionStarter]: At program point L823-4(lines 818 826) the Hoare annotation is: false [2019-10-22 11:27:20,406 INFO L439 ceAbstractionStarter]: At program point L823-5(lines 818 826) the Hoare annotation is: false [2019-10-22 11:27:20,407 INFO L443 ceAbstractionStarter]: For program point L774(lines 774 782) no Hoare annotation was computed. [2019-10-22 11:27:20,407 INFO L443 ceAbstractionStarter]: For program point L774-1(lines 774 782) no Hoare annotation was computed. [2019-10-22 11:27:20,407 INFO L443 ceAbstractionStarter]: For program point L774-2(lines 774 782) no Hoare annotation was computed. [2019-10-22 11:27:20,407 INFO L439 ceAbstractionStarter]: At program point L543(lines 1 945) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) [2019-10-22 11:27:20,407 INFO L443 ceAbstractionStarter]: For program point L659(lines 659 663) no Hoare annotation was computed. [2019-10-22 11:27:20,407 INFO L443 ceAbstractionStarter]: For program point L577(lines 577 583) no Hoare annotation was computed. [2019-10-22 11:27:20,407 INFO L443 ceAbstractionStarter]: For program point L65(lines 65 69) no Hoare annotation was computed. [2019-10-22 11:27:20,408 INFO L439 ceAbstractionStarter]: At program point L577-1(lines 577 583) the Hoare annotation is: (let ((.cse3 (= ~systemActive~0 (_ bv0 32)))) (let ((.cse2 (= (_ bv0 32) ~pumpRunning~0)) (.cse4 (not .cse3))) (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (and .cse2 .cse4))) (or (and (and .cse0 .cse1) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) (and (and (and .cse2 (= (_ bv0 32) |ULTIMATE.start_isPumpRunning_#res|)) .cse0) .cse3) (and (= (_ bv1 32) ~pumpRunning~0) .cse4 .cse0) (and (= (_ bv2 32) ~waterLevel~0) .cse0 .cse1))))) [2019-10-22 11:27:20,408 INFO L443 ceAbstractionStarter]: For program point L65-1(lines 65 69) no Hoare annotation was computed. [2019-10-22 11:27:20,408 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-10-22 11:27:20,408 INFO L443 ceAbstractionStarter]: For program point L925(lines 925 942) no Hoare annotation was computed. [2019-10-22 11:27:20,409 INFO L439 ceAbstractionStarter]: At program point L925-1(lines 1 945) the Hoare annotation is: (let ((.cse3 (= ~systemActive~0 (_ bv0 32)))) (let ((.cse2 (= (_ bv0 32) ~pumpRunning~0)) (.cse4 (not .cse3))) (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (and .cse2 .cse4))) (or (and (and .cse0 .cse1) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) (and (and (and .cse2 (= (_ bv0 32) |ULTIMATE.start_isPumpRunning_#res|)) .cse0) .cse3) (and (= (_ bv1 32) ~pumpRunning~0) .cse4 .cse0) (and (= (_ bv2 32) ~waterLevel~0) .cse0 .cse1 (= (_ bv2 32) ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~7) (= (_ bv2 32) |ULTIMATE.start_getWaterLevel_#res|)))))) [2019-10-22 11:27:20,409 INFO L443 ceAbstractionStarter]: For program point L925-2(lines 925 942) no Hoare annotation was computed. [2019-10-22 11:27:20,409 INFO L439 ceAbstractionStarter]: At program point L925-3(lines 1 945) the Hoare annotation is: false [2019-10-22 11:27:20,409 INFO L443 ceAbstractionStarter]: For program point L925-4(lines 925 942) no Hoare annotation was computed. [2019-10-22 11:27:20,409 INFO L439 ceAbstractionStarter]: At program point L925-5(lines 1 945) the Hoare annotation is: false [2019-10-22 11:27:20,409 INFO L446 ceAbstractionStarter]: At program point L150(lines 131 153) the Hoare annotation is: true [2019-10-22 11:27:20,409 INFO L439 ceAbstractionStarter]: At program point L745(lines 745 751) the Hoare annotation is: (let ((.cse6 (= ~systemActive~0 (_ bv0 32)))) (let ((.cse5 (= (_ bv0 32) ~pumpRunning~0)) (.cse4 (not .cse6))) (let ((.cse3 (= (_ bv1 32) ~pumpRunning~0)) (.cse0 (= (_ bv2 32) ~waterLevel~0)) (.cse1 (and (= ULTIMATE.start_processEnvironment_~tmp~5 (_ bv0 32)) .cse5 .cse4)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)))) (or (and .cse0 .cse1 .cse2) (and .cse3 (= (_ bv1 32) ~switchedOnBeforeTS~0) (= (_ bv1 32) |ULTIMATE.start_isPumpRunning_#res|) .cse4 .cse2) (and (and (and .cse5 (= (_ bv0 32) |ULTIMATE.start_isPumpRunning_#res|)) .cse2) .cse6) (and .cse3 .cse0 .cse4 .cse2) (and .cse1 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) .cse2))))) [2019-10-22 11:27:20,409 INFO L443 ceAbstractionStarter]: For program point L712(lines 712 718) no Hoare annotation was computed. [2019-10-22 11:27:20,410 INFO L439 ceAbstractionStarter]: At program point L745-1(lines 745 751) the Hoare annotation is: false [2019-10-22 11:27:20,410 INFO L443 ceAbstractionStarter]: For program point L712-1(lines 712 718) no Hoare annotation was computed. [2019-10-22 11:27:20,410 INFO L439 ceAbstractionStarter]: At program point L745-2(lines 745 751) the Hoare annotation is: false [2019-10-22 11:27:20,410 INFO L443 ceAbstractionStarter]: For program point L712-2(lines 712 718) no Hoare annotation was computed. [2019-10-22 11:27:20,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:27:20 BoogieIcfgContainer [2019-10-22 11:27:20,455 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:27:20,455 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:27:20,455 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:27:20,455 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:27:20,456 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:27:09" (3/4) ... [2019-10-22 11:27:20,466 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 11:27:20,488 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 38 nodes and edges [2019-10-22 11:27:20,490 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2019-10-22 11:27:20,490 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-10-22 11:27:20,491 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-10-22 11:27:20,491 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-10-22 11:27:20,492 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-10-22 11:27:20,528 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((splverifierCounter == 0bv32 && 0bv32 == pumpRunning && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || (((0bv32 == pumpRunning && 0bv32 == \result) && splverifierCounter == 0bv32) && systemActive == 0bv32)) || ((1bv32 == pumpRunning && !(systemActive == 0bv32)) && splverifierCounter == 0bv32)) || ((((2bv32 == waterLevel && splverifierCounter == 0bv32) && 0bv32 == pumpRunning && !(systemActive == 0bv32)) && 2bv32 == tmp) && 2bv32 == \result) [2019-10-22 11:27:20,529 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((splverifierCounter == 0bv32 && 0bv32 == pumpRunning && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || (((0bv32 == pumpRunning && 0bv32 == \result) && splverifierCounter == 0bv32) && systemActive == 0bv32)) || ((1bv32 == pumpRunning && !(systemActive == 0bv32)) && splverifierCounter == 0bv32)) || ((2bv32 == waterLevel && splverifierCounter == 0bv32) && 0bv32 == pumpRunning && !(systemActive == 0bv32)) [2019-10-22 11:27:20,529 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((splverifierCounter == 0bv32 && 0bv32 == pumpRunning && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || (((0bv32 == pumpRunning && 0bv32 == \result) && splverifierCounter == 0bv32) && systemActive == 0bv32)) || ((1bv32 == pumpRunning && !(systemActive == 0bv32)) && splverifierCounter == 0bv32)) || ((2bv32 == waterLevel && splverifierCounter == 0bv32) && 0bv32 == pumpRunning && !(systemActive == 0bv32)) [2019-10-22 11:27:20,530 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((0bv32 == pumpRunning && !(systemActive == 0bv32)) && 0bv32 == \result) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || (systemActive == 0bv32 && (0bv32 == pumpRunning && 0bv32 == \result) && splverifierCounter == 0bv32)) || ((((0bv32 == pumpRunning && !(systemActive == 0bv32)) && 0bv32 == \result) && 2bv32 == waterLevel) && splverifierCounter == 0bv32)) || (((1bv32 == pumpRunning && !(systemActive == 0bv32)) && 1bv32 == \result) && splverifierCounter == 0bv32) [2019-10-22 11:27:20,530 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((0bv32 == pumpRunning && !(systemActive == 0bv32)) && 0bv32 == \result) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || (((0bv32 == pumpRunning && 0bv32 == \result) && splverifierCounter == 0bv32) && systemActive == 0bv32)) || ((((1bv32 == pumpRunning && 1bv32 == switchedOnBeforeTS) && !(systemActive == 0bv32)) && 1bv32 == \result) && splverifierCounter == 0bv32)) || ((((0bv32 == pumpRunning && !(systemActive == 0bv32)) && 0bv32 == \result) && 2bv32 == waterLevel) && splverifierCounter == 0bv32) [2019-10-22 11:27:20,530 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((0bv32 == pumpRunning && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) || (((0bv32 == pumpRunning && 2bv32 == waterLevel) && !(systemActive == 0bv32)) && splverifierCounter == 0bv32)) || (((0bv32 == pumpRunning && 0bv32 == \result) && splverifierCounter == 0bv32) && systemActive == 0bv32)) || ((((1bv32 == pumpRunning && 1bv32 == switchedOnBeforeTS) && !(systemActive == 0bv32)) && 1bv32 == \result) && splverifierCounter == 0bv32) [2019-10-22 11:27:20,530 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((2bv32 == waterLevel && (tmp == 0bv32 && 0bv32 == pumpRunning) && !(systemActive == 0bv32)) && splverifierCounter == 0bv32) || ((((1bv32 == pumpRunning && 1bv32 == switchedOnBeforeTS) && 1bv32 == \result) && !(systemActive == 0bv32)) && splverifierCounter == 0bv32)) || (((0bv32 == pumpRunning && 0bv32 == \result) && splverifierCounter == 0bv32) && systemActive == 0bv32)) || (((1bv32 == pumpRunning && 2bv32 == waterLevel) && !(systemActive == 0bv32)) && splverifierCounter == 0bv32)) || ((((tmp == 0bv32 && 0bv32 == pumpRunning) && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) [2019-10-22 11:27:20,531 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((1bv32 == pumpRunning && 1bv32 == switchedOnBeforeTS) && 1bv32 == \result) && !(systemActive == 0bv32)) && splverifierCounter == 0bv32) || ((((1bv32 == pumpRunning && 2bv32 == waterLevel) && !(systemActive == 0bv32)) && splverifierCounter == 0bv32) && 2bv32 == \result)) || ((((tmp == 0bv32 && 0bv32 == pumpRunning) && !(systemActive == 0bv32)) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32)) || (((2bv32 == waterLevel && (tmp == 0bv32 && 0bv32 == pumpRunning) && !(systemActive == 0bv32)) && splverifierCounter == 0bv32) && 2bv32 == \result)) || (((0bv32 == pumpRunning && 0bv32 == \result) && systemActive == 0bv32) && splverifierCounter == 0bv32) [2019-10-22 11:27:20,531 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((1bv32 == \result && 0bv32 == pumpRunning) && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) || (((0bv32 == pumpRunning && 2bv32 == waterLevel) && !(systemActive == 0bv32)) && splverifierCounter == 0bv32) [2019-10-22 11:27:20,531 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((tmp == 0bv32 && 0bv32 == pumpRunning) && 0bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) || ((((1bv32 == pumpRunning && 1bv32 == switchedOnBeforeTS) && !(systemActive == 0bv32)) && 1bv32 == \result) && splverifierCounter == 0bv32)) || (((0bv32 == pumpRunning && 0bv32 == \result) && systemActive == 0bv32) && splverifierCounter == 0bv32) [2019-10-22 11:27:20,534 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((splverifierCounter == 0bv32 && (((0bv32 == pumpRunning && !(systemActive == 0bv32)) && \result == 0bv32) && tmp___0 == 0bv32) && !(tmp == 0bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || (((0bv32 == pumpRunning && 2bv32 == waterLevel) && !(systemActive == 0bv32)) && splverifierCounter == 0bv32) [2019-10-22 11:27:20,602 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_2be08f55-d2a1-4e95-b369-54ee49fb2c38/bin/utaipan/witness.graphml [2019-10-22 11:27:20,602 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:27:20,604 INFO L168 Benchmark]: Toolchain (without parser) took 13150.87 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 330.8 MB). Free memory was 951.0 MB in the beginning and 1.2 GB in the end (delta: -215.5 MB). Peak memory consumption was 115.3 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:20,604 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:27:20,604 INFO L168 Benchmark]: CACSL2BoogieTranslator took 705.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.9 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -196.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:20,605 INFO L168 Benchmark]: Boogie Procedure Inliner took 76.93 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: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:20,605 INFO L168 Benchmark]: Boogie Preprocessor took 52.40 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. [2019-10-22 11:27:20,605 INFO L168 Benchmark]: RCFGBuilder took 1002.29 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. [2019-10-22 11:27:20,605 INFO L168 Benchmark]: TraceAbstraction took 11161.39 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 172.0 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -101.3 MB). Peak memory consumption was 345.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:20,606 INFO L168 Benchmark]: Witness Printer took 147.42 ms. Allocated memory is still 1.4 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 8.5 MB). Peak memory consumption was 8.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:20,608 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 705.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.9 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -196.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 76.93 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: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 52.40 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 1002.29 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 11161.39 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 172.0 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -101.3 MB). Peak memory consumption was 345.5 MB. Max. memory is 11.5 GB. * Witness Printer took 147.42 ms. Allocated memory is still 1.4 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 8.5 MB). Peak memory consumption was 8.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 44]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 44]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 44]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 734]: Loop Invariant Derived loop invariant: (((((0bv32 == pumpRunning && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) || (((0bv32 == pumpRunning && 2bv32 == waterLevel) && !(systemActive == 0bv32)) && splverifierCounter == 0bv32)) || (((0bv32 == pumpRunning && 0bv32 == \result) && splverifierCounter == 0bv32) && systemActive == 0bv32)) || ((((1bv32 == pumpRunning && 1bv32 == switchedOnBeforeTS) && !(systemActive == 0bv32)) && 1bv32 == \result) && splverifierCounter == 0bv32) - InvariantResult [Line: 734]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 577]: Loop Invariant Derived loop invariant: ((((splverifierCounter == 0bv32 && 0bv32 == pumpRunning && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || (((0bv32 == pumpRunning && 0bv32 == \result) && splverifierCounter == 0bv32) && systemActive == 0bv32)) || ((1bv32 == pumpRunning && !(systemActive == 0bv32)) && splverifierCounter == 0bv32)) || ((2bv32 == waterLevel && splverifierCounter == 0bv32) && 0bv32 == pumpRunning && !(systemActive == 0bv32)) - InvariantResult [Line: 734]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 886]: Loop Invariant Derived loop invariant: 0bv32 == pumpRunning && splverifierCounter == 0bv32 - InvariantResult [Line: 818]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 699]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 818]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 738]: Loop Invariant Derived loop invariant: ((((((0bv32 == pumpRunning && !(systemActive == 0bv32)) && 0bv32 == \result) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || (((0bv32 == pumpRunning && 0bv32 == \result) && splverifierCounter == 0bv32) && systemActive == 0bv32)) || ((((1bv32 == pumpRunning && 1bv32 == switchedOnBeforeTS) && !(systemActive == 0bv32)) && 1bv32 == \result) && splverifierCounter == 0bv32)) || ((((0bv32 == pumpRunning && !(systemActive == 0bv32)) && 0bv32 == \result) && 2bv32 == waterLevel) && splverifierCounter == 0bv32) - InvariantResult [Line: 818]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((((splverifierCounter == 0bv32 && 0bv32 == pumpRunning && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || (((0bv32 == pumpRunning && 0bv32 == \result) && splverifierCounter == 0bv32) && systemActive == 0bv32)) || ((1bv32 == pumpRunning && !(systemActive == 0bv32)) && splverifierCounter == 0bv32)) || ((((2bv32 == waterLevel && splverifierCounter == 0bv32) && 0bv32 == pumpRunning && !(systemActive == 0bv32)) && 2bv32 == tmp) && 2bv32 == \result) - InvariantResult [Line: 738]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 738]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 603]: Loop Invariant Derived loop invariant: ((((0bv32 == pumpRunning && splverifierCounter == 0bv32) && systemActive == 0bv32) || ((splverifierCounter == 0bv32 && 0bv32 == pumpRunning && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32)) || ((1bv32 == pumpRunning && !(systemActive == 0bv32)) && splverifierCounter == 0bv32)) || ((2bv32 == waterLevel && splverifierCounter == 0bv32) && 0bv32 == pumpRunning && !(systemActive == 0bv32)) - InvariantResult [Line: 863]: Loop Invariant Derived loop invariant: ((splverifierCounter == 0bv32 && (((0bv32 == pumpRunning && !(systemActive == 0bv32)) && \result == 0bv32) && tmp___0 == 0bv32) && !(tmp == 0bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || (((0bv32 == pumpRunning && 2bv32 == waterLevel) && !(systemActive == 0bv32)) && splverifierCounter == 0bv32) - InvariantResult [Line: 108]: Loop Invariant Derived loop invariant: (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 61]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 863]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 708]: Loop Invariant Derived loop invariant: ((((1bv32 == \result && 0bv32 == pumpRunning) && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) || (((0bv32 == pumpRunning && 2bv32 == waterLevel) && !(systemActive == 0bv32)) && splverifierCounter == 0bv32) - InvariantResult [Line: 818]: Loop Invariant Derived loop invariant: ((((((0bv32 == pumpRunning && !(systemActive == 0bv32)) && 0bv32 == \result) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || (systemActive == 0bv32 && (0bv32 == pumpRunning && 0bv32 == \result) && splverifierCounter == 0bv32)) || ((((0bv32 == pumpRunning && !(systemActive == 0bv32)) && 0bv32 == \result) && 2bv32 == waterLevel) && splverifierCounter == 0bv32)) || (((1bv32 == pumpRunning && !(systemActive == 0bv32)) && 1bv32 == \result) && splverifierCounter == 0bv32) - InvariantResult [Line: 708]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 863]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 818]: Loop Invariant Derived loop invariant: (((((tmp == 0bv32 && 0bv32 == pumpRunning) && 0bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) || ((((1bv32 == pumpRunning && 1bv32 == switchedOnBeforeTS) && !(systemActive == 0bv32)) && 1bv32 == \result) && splverifierCounter == 0bv32)) || (((0bv32 == pumpRunning && 0bv32 == \result) && systemActive == 0bv32) && splverifierCounter == 0bv32) - InvariantResult [Line: 708]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 699]: Loop Invariant Derived loop invariant: (((((((1bv32 == pumpRunning && 1bv32 == switchedOnBeforeTS) && 1bv32 == \result) && !(systemActive == 0bv32)) && splverifierCounter == 0bv32) || ((((1bv32 == pumpRunning && 2bv32 == waterLevel) && !(systemActive == 0bv32)) && splverifierCounter == 0bv32) && 2bv32 == \result)) || ((((tmp == 0bv32 && 0bv32 == pumpRunning) && !(systemActive == 0bv32)) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32)) || (((2bv32 == waterLevel && (tmp == 0bv32 && 0bv32 == pumpRunning) && !(systemActive == 0bv32)) && splverifierCounter == 0bv32) && 2bv32 == \result)) || (((0bv32 == pumpRunning && 0bv32 == \result) && systemActive == 0bv32) && splverifierCounter == 0bv32) - InvariantResult [Line: 818]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 587]: Loop Invariant Derived loop invariant: ((((splverifierCounter == 0bv32 && 0bv32 == pumpRunning && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || (((0bv32 == pumpRunning && 0bv32 == \result) && splverifierCounter == 0bv32) && systemActive == 0bv32)) || ((1bv32 == pumpRunning && !(systemActive == 0bv32)) && splverifierCounter == 0bv32)) || ((2bv32 == waterLevel && splverifierCounter == 0bv32) && 0bv32 == pumpRunning && !(systemActive == 0bv32)) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 699]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 745]: Loop Invariant Derived loop invariant: (((((2bv32 == waterLevel && (tmp == 0bv32 && 0bv32 == pumpRunning) && !(systemActive == 0bv32)) && splverifierCounter == 0bv32) || ((((1bv32 == pumpRunning && 1bv32 == switchedOnBeforeTS) && 1bv32 == \result) && !(systemActive == 0bv32)) && splverifierCounter == 0bv32)) || (((0bv32 == pumpRunning && 0bv32 == \result) && splverifierCounter == 0bv32) && systemActive == 0bv32)) || (((1bv32 == pumpRunning && 2bv32 == waterLevel) && !(systemActive == 0bv32)) && splverifierCounter == 0bv32)) || ((((tmp == 0bv32 && 0bv32 == pumpRunning) && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) - InvariantResult [Line: 899]: Loop Invariant Derived loop invariant: (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 745]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 131]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 546]: Loop Invariant Derived loop invariant: (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 141]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 566]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 745]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 89 locations, 3 error locations. Result: SAFE, OverallTime: 11.0s, OverallIterations: 11, TraceHistogramMax: 4, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.2s, HoareTripleCheckerStatistics: 1324 SDtfs, 1896 SDslu, 2541 SDs, 0 SdLazy, 416 SolverSat, 119 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 862 GetRequests, 817 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=304occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 11 MinimizatonAttempts, 1177 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 39 LocationsWithAnnotation, 39 PreInvPairs, 150 NumberOfFragments, 832 HoareAnnotationTreeSize, 39 FomulaSimplifications, 99888 FormulaSimplificationTreeSizeReduction, 0.9s HoareSimplificationTime, 39 FomulaSimplificationsInter, 9207 FormulaSimplificationTreeSizeReductionInter, 2.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 430 NumberOfCodeBlocks, 430 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 836 ConstructedInterpolants, 0 QuantifiedInterpolants, 64556 SizeOfPredicates, 25 NumberOfNonLiveVariables, 2431 ConjunctsInSsa, 43 ConjunctsInUnsatCore, 24 InterpolantComputations, 20 PerfectInterpolantSequences, 258/270 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 correct! Received shutdown request...