./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a558f06-4e0e-431d-9b6b-cb559b8232e6/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a558f06-4e0e-431d-9b6b-cb559b8232e6/bin/uautomizer-Z5i5R5N3CC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a558f06-4e0e-431d-9b6b-cb559b8232e6/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a558f06-4e0e-431d-9b6b-cb559b8232e6/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a558f06-4e0e-431d-9b6b-cb559b8232e6/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a558f06-4e0e-431d-9b6b-cb559b8232e6/bin/uautomizer-Z5i5R5N3CC --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 40d3dae4aed31dfbf762bbd7fd9b566dada020a0 ........................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a558f06-4e0e-431d-9b6b-cb559b8232e6/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a558f06-4e0e-431d-9b6b-cb559b8232e6/bin/uautomizer-Z5i5R5N3CC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a558f06-4e0e-431d-9b6b-cb559b8232e6/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a558f06-4e0e-431d-9b6b-cb559b8232e6/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a558f06-4e0e-431d-9b6b-cb559b8232e6/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a558f06-4e0e-431d-9b6b-cb559b8232e6/bin/uautomizer-Z5i5R5N3CC --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 40d3dae4aed31dfbf762bbd7fd9b566dada020a0 ......................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: translation of (bvneg (_ BitVec 64) (_ BitVec 64)) not yet implemented, please contact Matthias --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 00:21:02,027 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:21:02,029 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:21:02,062 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:21:02,063 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:21:02,064 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:21:02,066 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:21:02,068 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:21:02,071 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:21:02,072 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:21:02,073 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:21:02,075 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:21:02,076 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:21:02,077 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:21:02,078 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:21:02,082 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:21:02,083 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:21:02,088 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:21:02,091 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:21:02,097 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:21:02,101 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:21:02,107 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:21:02,114 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:21:02,115 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:21:02,119 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:21:02,121 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:21:02,122 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:21:02,123 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:21:02,128 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:21:02,129 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:21:02,130 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:21:02,131 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:21:02,133 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:21:02,135 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:21:02,139 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:21:02,140 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:21:02,141 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:21:02,141 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:21:02,141 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:21:02,142 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:21:02,143 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:21:02,144 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a558f06-4e0e-431d-9b6b-cb559b8232e6/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-11 00:21:02,186 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:21:02,186 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:21:02,188 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:21:02,188 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:21:02,188 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:21:02,189 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:21:02,189 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:21:02,189 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:21:02,189 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:21:02,189 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:21:02,190 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:21:02,190 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:21:02,190 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:21:02,190 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:21:02,190 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:21:02,191 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:21:02,191 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:21:02,191 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:21:02,191 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:21:02,192 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:21:02,192 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:21:02,192 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:21:02,192 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:21:02,193 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:21:02,193 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:21:02,193 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:21:02,193 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:21:02,193 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:21:02,194 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a558f06-4e0e-431d-9b6b-cb559b8232e6/bin/uautomizer-Z5i5R5N3CC/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a558f06-4e0e-431d-9b6b-cb559b8232e6/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 40d3dae4aed31dfbf762bbd7fd9b566dada020a0 [2021-10-11 00:21:02,450 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:21:02,480 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:21:02,482 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:21:02,483 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:21:02,486 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:21:02,488 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a558f06-4e0e-431d-9b6b-cb559b8232e6/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound2.c [2021-10-11 00:21:02,584 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a558f06-4e0e-431d-9b6b-cb559b8232e6/bin/uautomizer-Z5i5R5N3CC/data/9fa823bfc/32d59dbcfa01448a8ae25a8fe7939d08/FLAGce12e6f0e [2021-10-11 00:21:03,031 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:21:03,031 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a558f06-4e0e-431d-9b6b-cb559b8232e6/sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound2.c [2021-10-11 00:21:03,038 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a558f06-4e0e-431d-9b6b-cb559b8232e6/bin/uautomizer-Z5i5R5N3CC/data/9fa823bfc/32d59dbcfa01448a8ae25a8fe7939d08/FLAGce12e6f0e [2021-10-11 00:21:03,449 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a558f06-4e0e-431d-9b6b-cb559b8232e6/bin/uautomizer-Z5i5R5N3CC/data/9fa823bfc/32d59dbcfa01448a8ae25a8fe7939d08 [2021-10-11 00:21:03,452 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:21:03,453 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:21:03,455 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:21:03,455 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:21:03,462 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:21:03,462 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:21:03" (1/1) ... [2021-10-11 00:21:03,464 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d64b149 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:03, skipping insertion in model container [2021-10-11 00:21:03,464 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:21:03" (1/1) ... [2021-10-11 00:21:03,477 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:21:03,494 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:21:03,650 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a558f06-4e0e-431d-9b6b-cb559b8232e6/sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound2.c[458,471] [2021-10-11 00:21:03,667 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:21:03,676 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:21:03,689 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a558f06-4e0e-431d-9b6b-cb559b8232e6/sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound2.c[458,471] [2021-10-11 00:21:03,695 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:21:03,708 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:21:03,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:03 WrapperNode [2021-10-11 00:21:03,709 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:21:03,710 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:21:03,710 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:21:03,710 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:21:03,718 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:03" (1/1) ... [2021-10-11 00:21:03,725 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:03" (1/1) ... [2021-10-11 00:21:03,744 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:21:03,746 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:21:03,746 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:21:03,746 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:21:03,755 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:03" (1/1) ... [2021-10-11 00:21:03,755 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:03" (1/1) ... [2021-10-11 00:21:03,757 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:03" (1/1) ... [2021-10-11 00:21:03,757 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:03" (1/1) ... [2021-10-11 00:21:03,761 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:03" (1/1) ... [2021-10-11 00:21:03,765 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:03" (1/1) ... [2021-10-11 00:21:03,766 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:03" (1/1) ... [2021-10-11 00:21:03,768 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:21:03,769 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:21:03,769 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:21:03,769 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:21:03,770 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:03" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a558f06-4e0e-431d-9b6b-cb559b8232e6/bin/uautomizer-Z5i5R5N3CC/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 [2021-10-11 00:21:03,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 00:21:03,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:21:03,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:21:03,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:21:04,059 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:21:04,060 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2021-10-11 00:21:04,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:21:04 BoogieIcfgContainer [2021-10-11 00:21:04,062 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:21:04,064 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:21:04,064 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:21:04,067 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:21:04,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:21:03" (1/3) ... [2021-10-11 00:21:04,069 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d19083f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:21:04, skipping insertion in model container [2021-10-11 00:21:04,069 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:03" (2/3) ... [2021-10-11 00:21:04,070 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d19083f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:21:04, skipping insertion in model container [2021-10-11 00:21:04,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:21:04" (3/3) ... [2021-10-11 00:21:04,072 INFO L111 eAbstractionObserver]: Analyzing ICFG ps3-ll_valuebound2.c [2021-10-11 00:21:04,087 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:21:04,091 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-10-11 00:21:04,103 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-11 00:21:04,129 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:21:04,130 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:21:04,130 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:21:04,130 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:21:04,131 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:21:04,131 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:21:04,131 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:21:04,131 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:21:04,145 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2021-10-11 00:21:04,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-11 00:21:04,151 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:21:04,152 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:21:04,152 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:21:04,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:04,159 INFO L82 PathProgramCache]: Analyzing trace with hash 1804972333, now seen corresponding path program 1 times [2021-10-11 00:21:04,170 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:21:04,170 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620959385] [2021-10-11 00:21:04,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:21:04,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:21:04,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:21:04,359 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620959385] [2021-10-11 00:21:04,360 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:21:04,360 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:21:04,361 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186667178] [2021-10-11 00:21:04,365 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 00:21:04,366 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:21:04,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 00:21:04,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 00:21:04,382 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 2 states. [2021-10-11 00:21:04,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:21:04,399 INFO L93 Difference]: Finished difference Result 31 states and 40 transitions. [2021-10-11 00:21:04,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 00:21:04,401 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2021-10-11 00:21:04,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:21:04,410 INFO L225 Difference]: With dead ends: 31 [2021-10-11 00:21:04,410 INFO L226 Difference]: Without dead ends: 13 [2021-10-11 00:21:04,413 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 00:21:04,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-10-11 00:21:04,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-10-11 00:21:04,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-10-11 00:21:04,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2021-10-11 00:21:04,447 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 7 [2021-10-11 00:21:04,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:21:04,447 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2021-10-11 00:21:04,448 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 00:21:04,448 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2021-10-11 00:21:04,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-11 00:21:04,448 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:21:04,449 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:21:04,449 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 00:21:04,449 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:21:04,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:04,450 INFO L82 PathProgramCache]: Analyzing trace with hash 1806819375, now seen corresponding path program 1 times [2021-10-11 00:21:04,451 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:21:04,451 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217396602] [2021-10-11 00:21:04,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:21:04,483 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 00:21:04,486 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1223868530] [2021-10-11 00:21:04,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a558f06-4e0e-431d-9b6b-cb559b8232e6/bin/uautomizer-Z5i5R5N3CC/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 [2021-10-11 00:21:04,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:21:04,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-11 00:21:04,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:21:04,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:21:04,702 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217396602] [2021-10-11 00:21:04,702 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 00:21:04,702 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1223868530] [2021-10-11 00:21:04,703 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:21:04,703 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:21:04,703 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181196157] [2021-10-11 00:21:04,705 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:21:04,705 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:21:04,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:21:04,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:21:04,710 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 5 states. [2021-10-11 00:21:04,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:21:04,942 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2021-10-11 00:21:04,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 00:21:04,943 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2021-10-11 00:21:04,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:21:04,943 INFO L225 Difference]: With dead ends: 23 [2021-10-11 00:21:04,943 INFO L226 Difference]: Without dead ends: 17 [2021-10-11 00:21:04,945 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-11 00:21:04,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-10-11 00:21:04,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2021-10-11 00:21:04,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-10-11 00:21:04,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2021-10-11 00:21:04,950 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 7 [2021-10-11 00:21:04,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:21:04,950 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2021-10-11 00:21:04,950 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:21:04,950 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2021-10-11 00:21:04,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-11 00:21:04,951 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:21:04,951 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:21:05,168 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-10-11 00:21:05,169 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:21:05,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:05,170 INFO L82 PathProgramCache]: Analyzing trace with hash -1864186656, now seen corresponding path program 1 times [2021-10-11 00:21:05,170 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:21:05,170 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978833149] [2021-10-11 00:21:05,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:21:05,183 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 00:21:05,183 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1712510205] [2021-10-11 00:21:05,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a558f06-4e0e-431d-9b6b-cb559b8232e6/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:21:05,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:21:05,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-11 00:21:05,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:21:05,315 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:21:05,315 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978833149] [2021-10-11 00:21:05,315 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 00:21:05,315 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1712510205] [2021-10-11 00:21:05,316 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-11 00:21:05,316 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2021-10-11 00:21:05,316 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199111763] [2021-10-11 00:21:05,316 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 00:21:05,316 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:21:05,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 00:21:05,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:21:05,317 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 6 states. [2021-10-11 00:21:05,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:21:05,454 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2021-10-11 00:21:05,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 00:21:05,455 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2021-10-11 00:21:05,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:21:05,456 INFO L225 Difference]: With dead ends: 26 [2021-10-11 00:21:05,456 INFO L226 Difference]: Without dead ends: 20 [2021-10-11 00:21:05,457 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-10-11 00:21:05,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-10-11 00:21:05,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2021-10-11 00:21:05,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-10-11 00:21:05,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2021-10-11 00:21:05,462 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 10 [2021-10-11 00:21:05,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:21:05,462 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2021-10-11 00:21:05,462 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 00:21:05,463 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2021-10-11 00:21:05,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-11 00:21:05,463 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:21:05,463 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1] [2021-10-11 00:21:05,686 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:21:05,687 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:21:05,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:05,687 INFO L82 PathProgramCache]: Analyzing trace with hash -2052598129, now seen corresponding path program 2 times [2021-10-11 00:21:05,688 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:21:05,688 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040493534] [2021-10-11 00:21:05,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:21:05,700 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 00:21:05,701 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1343788607] [2021-10-11 00:21:05,701 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a558f06-4e0e-431d-9b6b-cb559b8232e6/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:21:05,832 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-11 00:21:05,833 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-11 00:21:05,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 24 conjunts are in the unsatisfiable core [2021-10-11 00:21:05,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:21:05,851 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040493534] [2021-10-11 00:21:05,851 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 00:21:05,851 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1343788607] [2021-10-11 00:21:05,851 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: null [2021-10-11 00:21:05,852 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:21:05,852 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-11 00:21:05,852 ERROR L205 FreeRefinementEngine]: Strategy CAMEL failed to provide any proof altough trace is infeasible [2021-10-11 00:21:05,852 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 00:21:06,060 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:21:06,075 WARN L254 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2021-10-11 00:21:06,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:21:06 BoogieIcfgContainer [2021-10-11 00:21:06,076 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:21:06,076 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:21:06,076 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:21:06,076 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:21:06,077 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:21:04" (3/4) ... [2021-10-11 00:21:06,080 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-11 00:21:06,080 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:21:06,082 INFO L168 Benchmark]: Toolchain (without parser) took 2627.94 ms. Allocated memory is still 100.7 MB. Free memory was 63.9 MB in the beginning and 69.8 MB in the end (delta: -5.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:21:06,083 INFO L168 Benchmark]: CDTParser took 0.65 ms. Allocated memory is still 100.7 MB. Free memory was 80.4 MB in the beginning and 80.3 MB in the end (delta: 77.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:21:06,083 INFO L168 Benchmark]: CACSL2BoogieTranslator took 254.00 ms. Allocated memory is still 100.7 MB. Free memory was 63.7 MB in the beginning and 77.7 MB in the end (delta: -14.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:21:06,084 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.18 ms. Allocated memory is still 100.7 MB. Free memory was 77.7 MB in the beginning and 76.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:21:06,085 INFO L168 Benchmark]: Boogie Preprocessor took 22.38 ms. Allocated memory is still 100.7 MB. Free memory was 76.1 MB in the beginning and 75.2 MB in the end (delta: 867.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:21:06,085 INFO L168 Benchmark]: RCFGBuilder took 293.19 ms. Allocated memory is still 100.7 MB. Free memory was 75.0 MB in the beginning and 62.9 MB in the end (delta: 12.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:21:06,086 INFO L168 Benchmark]: TraceAbstraction took 2012.08 ms. Allocated memory is still 100.7 MB. Free memory was 62.4 MB in the beginning and 69.8 MB in the end (delta: -7.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:21:06,086 INFO L168 Benchmark]: Witness Printer took 4.39 ms. Allocated memory is still 100.7 MB. Free memory is still 69.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:21:06,092 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.65 ms. Allocated memory is still 100.7 MB. Free memory was 80.4 MB in the beginning and 80.3 MB in the end (delta: 77.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 254.00 ms. Allocated memory is still 100.7 MB. Free memory was 63.7 MB in the beginning and 77.7 MB in the end (delta: -14.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.18 ms. Allocated memory is still 100.7 MB. Free memory was 77.7 MB in the beginning and 76.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.38 ms. Allocated memory is still 100.7 MB. Free memory was 76.1 MB in the beginning and 75.2 MB in the end (delta: 867.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 293.19 ms. Allocated memory is still 100.7 MB. Free memory was 75.0 MB in the beginning and 62.9 MB in the end (delta: 12.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2012.08 ms. Allocated memory is still 100.7 MB. Free memory was 62.4 MB in the beginning and 69.8 MB in the end (delta: -7.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.39 ms. Allocated memory is still 100.7 MB. Free memory is still 69.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L18] short k; [L19] long long y, x, c; [L20] k = __VERIFIER_nondet_short() [L7] COND FALSE !(!cond) [L23] y = 0 [L24] x = 0 [L25] c = 0 [L27] COND TRUE 1 [L10] COND FALSE !(!(cond)) [L30] COND FALSE !(!(c < k)) [L33] c = c + 1 [L34] y = y + 1 [L35] x = y * y + x [L27] COND TRUE 1 [L10] COND FALSE !(!(cond)) [L30] COND FALSE !(!(c < k)) [L33] c = c + 1 [L34] y = y + 1 [L35] x = y * y + x [L27] COND TRUE 1 [L10] COND TRUE !(cond) [L12] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 1.9s, OverallIterations: 4, TraceHistogramMax: 3, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 34 SDtfs, 41 SDslu, 35 SDs, 0 SdLazy, 45 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 543 SizeOfPredicates, 12 NumberOfNonLiveVariables, 118 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 0/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2021-10-11 00:21:08,806 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:21:08,809 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:21:08,845 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:21:08,846 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:21:08,851 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:21:08,854 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:21:08,861 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:21:08,864 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:21:08,870 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:21:08,872 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:21:08,873 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:21:08,874 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:21:08,877 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:21:08,878 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:21:08,880 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:21:08,882 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:21:08,887 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:21:08,889 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:21:08,896 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:21:08,897 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:21:08,899 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:21:08,900 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:21:08,901 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:21:08,904 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:21:08,905 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:21:08,905 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:21:08,906 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:21:08,907 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:21:08,908 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:21:08,909 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:21:08,909 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:21:08,910 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:21:08,911 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:21:08,913 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:21:08,913 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:21:08,914 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:21:08,914 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:21:08,914 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:21:08,915 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:21:08,916 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:21:08,917 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a558f06-4e0e-431d-9b6b-cb559b8232e6/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-10-11 00:21:08,943 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:21:08,943 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:21:08,945 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:21:08,945 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:21:08,945 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:21:08,945 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:21:08,945 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:21:08,946 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:21:08,946 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:21:08,946 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:21:08,946 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:21:08,946 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:21:08,946 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-11 00:21:08,947 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-11 00:21:08,947 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:21:08,947 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:21:08,947 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:21:08,947 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:21:08,948 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:21:08,948 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:21:08,948 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:21:08,948 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:21:08,948 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:21:08,949 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:21:08,949 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:21:08,949 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-11 00:21:08,949 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-11 00:21:08,949 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:21:08,949 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:21:08,950 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 00:21:08,950 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a558f06-4e0e-431d-9b6b-cb559b8232e6/bin/uautomizer-Z5i5R5N3CC/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a558f06-4e0e-431d-9b6b-cb559b8232e6/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 40d3dae4aed31dfbf762bbd7fd9b566dada020a0 [2021-10-11 00:21:09,365 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:21:09,387 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:21:09,390 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:21:09,392 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:21:09,393 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:21:09,394 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a558f06-4e0e-431d-9b6b-cb559b8232e6/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound2.c [2021-10-11 00:21:09,480 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a558f06-4e0e-431d-9b6b-cb559b8232e6/bin/uautomizer-Z5i5R5N3CC/data/d31b1e060/ea8af96af4b640938aff747615f48dd9/FLAG0c0d24ca0 [2021-10-11 00:21:09,990 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:21:09,991 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a558f06-4e0e-431d-9b6b-cb559b8232e6/sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound2.c [2021-10-11 00:21:09,997 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a558f06-4e0e-431d-9b6b-cb559b8232e6/bin/uautomizer-Z5i5R5N3CC/data/d31b1e060/ea8af96af4b640938aff747615f48dd9/FLAG0c0d24ca0 [2021-10-11 00:21:10,338 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a558f06-4e0e-431d-9b6b-cb559b8232e6/bin/uautomizer-Z5i5R5N3CC/data/d31b1e060/ea8af96af4b640938aff747615f48dd9 [2021-10-11 00:21:10,340 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:21:10,341 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:21:10,343 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:21:10,343 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:21:10,360 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:21:10,361 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:21:10" (1/1) ... [2021-10-11 00:21:10,364 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6626bb9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:10, skipping insertion in model container [2021-10-11 00:21:10,365 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:21:10" (1/1) ... [2021-10-11 00:21:10,373 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:21:10,392 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:21:10,569 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a558f06-4e0e-431d-9b6b-cb559b8232e6/sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound2.c[458,471] [2021-10-11 00:21:10,598 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:21:10,616 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:21:10,635 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a558f06-4e0e-431d-9b6b-cb559b8232e6/sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound2.c[458,471] [2021-10-11 00:21:10,660 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:21:10,684 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:21:10,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:10 WrapperNode [2021-10-11 00:21:10,688 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:21:10,692 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:21:10,693 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:21:10,693 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:21:10,702 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:10" (1/1) ... [2021-10-11 00:21:10,722 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:10" (1/1) ... [2021-10-11 00:21:10,750 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:21:10,751 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:21:10,751 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:21:10,752 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:21:10,779 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:10" (1/1) ... [2021-10-11 00:21:10,779 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:10" (1/1) ... [2021-10-11 00:21:10,797 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:10" (1/1) ... [2021-10-11 00:21:10,798 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:10" (1/1) ... [2021-10-11 00:21:10,803 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:10" (1/1) ... [2021-10-11 00:21:10,810 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:10" (1/1) ... [2021-10-11 00:21:10,815 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:10" (1/1) ... [2021-10-11 00:21:10,825 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:21:10,826 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:21:10,827 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:21:10,827 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:21:10,828 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:10" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a558f06-4e0e-431d-9b6b-cb559b8232e6/bin/uautomizer-Z5i5R5N3CC/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 [2021-10-11 00:21:10,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-11 00:21:10,937 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:21:10,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:21:10,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:21:11,989 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:21:11,989 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2021-10-11 00:21:11,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:21:11 BoogieIcfgContainer [2021-10-11 00:21:11,991 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:21:11,992 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:21:11,992 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:21:11,995 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:21:11,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:21:10" (1/3) ... [2021-10-11 00:21:12,000 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cd03f46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:21:11, skipping insertion in model container [2021-10-11 00:21:12,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:10" (2/3) ... [2021-10-11 00:21:12,000 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cd03f46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:21:12, skipping insertion in model container [2021-10-11 00:21:12,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:21:11" (3/3) ... [2021-10-11 00:21:12,002 INFO L111 eAbstractionObserver]: Analyzing ICFG ps3-ll_valuebound2.c [2021-10-11 00:21:12,021 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:21:12,025 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-10-11 00:21:12,040 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-11 00:21:12,065 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:21:12,065 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:21:12,065 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:21:12,065 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:21:12,065 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:21:12,066 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:21:12,066 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:21:12,066 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:21:12,133 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2021-10-11 00:21:12,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-11 00:21:12,138 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:21:12,139 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:21:12,139 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:21:12,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:12,145 INFO L82 PathProgramCache]: Analyzing trace with hash 1804972333, now seen corresponding path program 1 times [2021-10-11 00:21:12,157 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-11 00:21:12,157 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [691199953] [2021-10-11 00:21:12,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a558f06-4e0e-431d-9b6b-cb559b8232e6/bin/uautomizer-Z5i5R5N3CC/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2021-10-11 00:21:12,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:21:12,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-11 00:21:12,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:21:12,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:21:12,338 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 00:21:12,338 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [691199953] [2021-10-11 00:21:12,339 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:21:12,340 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:21:12,341 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264903976] [2021-10-11 00:21:12,345 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 00:21:12,345 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-11 00:21:12,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 00:21:12,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 00:21:12,358 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 2 states. [2021-10-11 00:21:12,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:21:12,374 INFO L93 Difference]: Finished difference Result 31 states and 40 transitions. [2021-10-11 00:21:12,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 00:21:12,375 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2021-10-11 00:21:12,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:21:12,383 INFO L225 Difference]: With dead ends: 31 [2021-10-11 00:21:12,384 INFO L226 Difference]: Without dead ends: 13 [2021-10-11 00:21:12,386 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 00:21:12,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-10-11 00:21:12,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-10-11 00:21:12,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-10-11 00:21:12,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2021-10-11 00:21:12,423 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 7 [2021-10-11 00:21:12,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:21:12,424 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2021-10-11 00:21:12,424 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 00:21:12,424 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2021-10-11 00:21:12,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-11 00:21:12,425 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:21:12,425 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:21:12,646 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2021-10-11 00:21:12,647 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:21:12,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:12,650 INFO L82 PathProgramCache]: Analyzing trace with hash 1806819375, now seen corresponding path program 1 times [2021-10-11 00:21:12,654 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-11 00:21:12,655 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [30036525] [2021-10-11 00:21:12,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a558f06-4e0e-431d-9b6b-cb559b8232e6/bin/uautomizer-Z5i5R5N3CC/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2021-10-11 00:21:12,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:21:12,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 00:21:12,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:21:13,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:21:13,013 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 00:21:13,014 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [30036525] [2021-10-11 00:21:13,014 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:21:13,014 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 00:21:13,015 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948320704] [2021-10-11 00:21:13,016 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 00:21:13,017 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-11 00:21:13,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:21:13,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:21:13,020 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 4 states. [2021-10-11 00:21:13,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:21:13,995 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2021-10-11 00:21:13,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 00:21:13,996 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2021-10-11 00:21:13,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:21:13,996 INFO L225 Difference]: With dead ends: 23 [2021-10-11 00:21:13,997 INFO L226 Difference]: Without dead ends: 17 [2021-10-11 00:21:13,998 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:21:13,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-10-11 00:21:14,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2021-10-11 00:21:14,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-10-11 00:21:14,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2021-10-11 00:21:14,003 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 7 [2021-10-11 00:21:14,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:21:14,003 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2021-10-11 00:21:14,004 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 00:21:14,004 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2021-10-11 00:21:14,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-11 00:21:14,004 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:21:14,004 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:21:14,218 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2021-10-11 00:21:14,219 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:21:14,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:14,220 INFO L82 PathProgramCache]: Analyzing trace with hash -1864186656, now seen corresponding path program 1 times [2021-10-11 00:21:14,220 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-11 00:21:14,220 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1972026021] [2021-10-11 00:21:14,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a558f06-4e0e-431d-9b6b-cb559b8232e6/bin/uautomizer-Z5i5R5N3CC/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2021-10-11 00:21:14,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:21:14,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-11 00:21:14,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:21:14,711 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2021-10-11 00:21:14,842 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:21:14,842 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 00:21:16,765 WARN L197 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-10-11 00:21:17,917 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-11 00:21:17,918 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1972026021] [2021-10-11 00:21:17,918 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-11 00:21:17,918 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 7 [2021-10-11 00:21:17,919 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298729835] [2021-10-11 00:21:17,919 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-10-11 00:21:17,919 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-11 00:21:17,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-11 00:21:17,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-10-11 00:21:17,921 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 7 states. [2021-10-11 00:21:18,554 WARN L197 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-10-11 00:21:20,650 WARN L197 SmtUtils]: Spent 1.25 s on a formula simplification that was a NOOP. DAG size: 26 [2021-10-11 00:21:21,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:21:21,492 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2021-10-11 00:21:21,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 00:21:21,493 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10 [2021-10-11 00:21:21,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:21:21,493 INFO L225 Difference]: With dead ends: 21 [2021-10-11 00:21:21,493 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 00:21:21,494 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-10-11 00:21:21,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 00:21:21,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 00:21:21,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 00:21:21,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 00:21:21,495 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2021-10-11 00:21:21,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:21:21,496 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:21:21,496 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-10-11 00:21:21,496 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 00:21:21,496 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 00:21:21,700 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2021-10-11 00:21:21,702 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 00:21:24,857 WARN L197 SmtUtils]: Spent 3.11 s on a formula simplification. DAG size of input: 38 DAG size of output: 26 [2021-10-11 00:21:27,722 WARN L197 SmtUtils]: Spent 2.86 s on a formula simplification. DAG size of input: 38 DAG size of output: 30 [2021-10-11 00:21:27,725 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 00:21:27,726 INFO L258 CegarLoopResult]: At program point L27-2(lines 27 36) the Hoare annotation is: (let ((.cse0 ((_ sign_extend 32) (_ bv0 32)))) (or (and (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (= .cse0 (bvadd (bvneg (bvmul (bvmul ((_ sign_extend 32) (_ bv3 32)) ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~y~0)) (bvmul ((_ sign_extend 32) (_ bv6 32)) ULTIMATE.start_main_~x~0) (bvneg (bvmul (bvmul (bvmul ((_ sign_extend 32) (_ bv2 32)) ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~y~0)) (bvneg ULTIMATE.start_main_~y~0)))) (and (= .cse0 ULTIMATE.start_main_~x~0) (= .cse0 ULTIMATE.start_main_~y~0)))) [2021-10-11 00:21:27,726 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2021-10-11 00:21:27,726 INFO L262 CegarLoopResult]: For program point L27-3(lines 27 36) no Hoare annotation was computed. [2021-10-11 00:21:27,726 INFO L262 CegarLoopResult]: For program point L11(lines 11 12) no Hoare annotation was computed. [2021-10-11 00:21:27,727 INFO L262 CegarLoopResult]: For program point L11-1(lines 11 12) no Hoare annotation was computed. [2021-10-11 00:21:27,727 INFO L262 CegarLoopResult]: For program point L7(line 7) no Hoare annotation was computed. [2021-10-11 00:21:27,727 INFO L265 CegarLoopResult]: At program point L38(lines 17 39) the Hoare annotation is: true [2021-10-11 00:21:27,727 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-11 00:21:27,727 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 00:21:27,727 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-11 00:21:27,728 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2021-10-11 00:21:27,728 INFO L262 CegarLoopResult]: For program point L10(lines 10 13) no Hoare annotation was computed. [2021-10-11 00:21:27,728 INFO L258 CegarLoopResult]: At program point L10-2(lines 30 31) the Hoare annotation is: (and (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (= ((_ sign_extend 32) (_ bv0 32)) (bvadd (bvneg (bvmul (bvmul ((_ sign_extend 32) (_ bv3 32)) ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~y~0)) (bvmul ((_ sign_extend 32) (_ bv6 32)) ULTIMATE.start_main_~x~0) (bvneg (bvmul (bvmul (bvmul ((_ sign_extend 32) (_ bv2 32)) ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~y~0)) (bvneg ULTIMATE.start_main_~y~0)))) [2021-10-11 00:21:27,728 INFO L262 CegarLoopResult]: For program point L10-3(lines 10 13) no Hoare annotation was computed. [2021-10-11 00:21:27,729 INFO L262 CegarLoopResult]: For program point L6(lines 6 8) no Hoare annotation was computed. [2021-10-11 00:21:27,729 INFO L265 CegarLoopResult]: At program point L10-5(lines 9 15) the Hoare annotation is: true [2021-10-11 00:21:27,752 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: translation of (bvneg (_ BitVec 64) (_ BitVec 64)) not yet implemented, please contact Matthias at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:211) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:394) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportResult(TraceAbstractionStarter.java:796) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:283) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:240) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) 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:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-10-11 00:21:27,756 INFO L168 Benchmark]: Toolchain (without parser) took 17413.59 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 31.5 MB in the beginning and 35.1 MB in the end (delta: -3.6 MB). Peak memory consumption was 7.9 MB. Max. memory is 16.1 GB. [2021-10-11 00:21:27,756 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 54.5 MB. Free memory was 35.9 MB in the beginning and 35.9 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:21:27,757 INFO L168 Benchmark]: CACSL2BoogieTranslator took 345.52 ms. Allocated memory is still 54.5 MB. Free memory was 31.2 MB in the beginning and 36.4 MB in the end (delta: -5.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:21:27,760 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.30 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 36.2 MB in the beginning and 50.5 MB in the end (delta: -14.4 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:21:27,761 INFO L168 Benchmark]: Boogie Preprocessor took 74.44 ms. Allocated memory is still 67.1 MB. Free memory was 50.5 MB in the beginning and 49.3 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:21:27,763 INFO L168 Benchmark]: RCFGBuilder took 1164.42 ms. Allocated memory is still 67.1 MB. Free memory was 49.3 MB in the beginning and 36.5 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-11 00:21:27,764 INFO L168 Benchmark]: TraceAbstraction took 15762.19 ms. Allocated memory is still 67.1 MB. Free memory was 36.1 MB in the beginning and 35.1 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 16.1 GB. [2021-10-11 00:21:27,768 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 54.5 MB. Free memory was 35.9 MB in the beginning and 35.9 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 345.52 ms. Allocated memory is still 54.5 MB. Free memory was 31.2 MB in the beginning and 36.4 MB in the end (delta: -5.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 58.30 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 36.2 MB in the beginning and 50.5 MB in the end (delta: -14.4 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 74.44 ms. Allocated memory is still 67.1 MB. Free memory was 50.5 MB in the beginning and 49.3 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1164.42 ms. Allocated memory is still 67.1 MB. Free memory was 49.3 MB in the beginning and 36.5 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 15762.19 ms. Allocated memory is still 67.1 MB. Free memory was 36.1 MB in the beginning and 35.1 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 12]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 - ExceptionOrErrorResult: UnsupportedOperationException: translation of (bvneg (_ BitVec 64) (_ BitVec 64)) not yet implemented, please contact Matthias de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: translation of (bvneg (_ BitVec 64) (_ BitVec 64)) not yet implemented, please contact Matthias: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:211) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...