./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_unwindbound5.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_4eb08154-271d-4296-ba7b-8dab5749bbba/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb08154-271d-4296-ba7b-8dab5749bbba/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_4eb08154-271d-4296-ba7b-8dab5749bbba/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb08154-271d-4296-ba7b-8dab5749bbba/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_unwindbound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb08154-271d-4296-ba7b-8dab5749bbba/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_4eb08154-271d-4296-ba7b-8dab5749bbba/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 ad2bc1e7850d2ee1164096f3752e093539027578 ............................................................................................................................................................................................................................................................................................................................................................................................................................. 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_4eb08154-271d-4296-ba7b-8dab5749bbba/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb08154-271d-4296-ba7b-8dab5749bbba/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_4eb08154-271d-4296-ba7b-8dab5749bbba/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb08154-271d-4296-ba7b-8dab5749bbba/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_unwindbound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb08154-271d-4296-ba7b-8dab5749bbba/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_4eb08154-271d-4296-ba7b-8dab5749bbba/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 ad2bc1e7850d2ee1164096f3752e093539027578 .......................................................................................................................................................................................................................................................................................................................................................... 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 00:25:37,806 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:25:37,808 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:25:37,849 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:25:37,849 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:25:37,851 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:25:37,852 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:25:37,855 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:25:37,858 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:25:37,861 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:25:37,862 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:25:37,865 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:25:37,866 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:25:37,871 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:25:37,873 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:25:37,875 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:25:37,878 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:25:37,885 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:25:37,888 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:25:37,890 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:25:37,898 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:25:37,900 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:25:37,904 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:25:37,905 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:25:37,909 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:25:37,912 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:25:37,912 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:25:37,913 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:25:37,915 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:25:37,917 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:25:37,918 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:25:37,919 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:25:37,921 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:25:37,922 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:25:37,925 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:25:37,925 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:25:37,926 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:25:37,926 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:25:37,927 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:25:37,928 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:25:37,928 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:25:37,931 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb08154-271d-4296-ba7b-8dab5749bbba/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-11 00:25:37,977 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:25:37,977 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:25:37,979 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:25:37,980 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:25:37,980 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:25:37,980 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:25:37,980 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:25:37,981 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:25:37,981 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:25:37,981 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:25:37,982 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:25:37,983 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:25:37,983 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:25:37,983 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:25:37,983 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:25:37,984 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:25:37,984 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:25:37,984 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:25:37,984 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:25:37,985 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:25:37,985 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:25:37,985 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:25:37,985 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:25:37,986 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:25:37,986 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:25:37,986 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:25:37,986 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:25:37,986 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:25:37,987 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_4eb08154-271d-4296-ba7b-8dab5749bbba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb08154-271d-4296-ba7b-8dab5749bbba/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ad2bc1e7850d2ee1164096f3752e093539027578 [2021-10-11 00:25:38,247 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:25:38,286 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:25:38,289 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:25:38,299 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:25:38,300 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:25:38,301 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb08154-271d-4296-ba7b-8dab5749bbba/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_unwindbound5.c [2021-10-11 00:25:38,358 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb08154-271d-4296-ba7b-8dab5749bbba/bin/uautomizer-Z5i5R5N3CC/data/77e05078e/46a00d72047649f89dc9ddcf43743496/FLAG10498539b [2021-10-11 00:25:38,759 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:25:38,760 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb08154-271d-4296-ba7b-8dab5749bbba/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_unwindbound5.c [2021-10-11 00:25:38,766 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb08154-271d-4296-ba7b-8dab5749bbba/bin/uautomizer-Z5i5R5N3CC/data/77e05078e/46a00d72047649f89dc9ddcf43743496/FLAG10498539b [2021-10-11 00:25:39,177 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb08154-271d-4296-ba7b-8dab5749bbba/bin/uautomizer-Z5i5R5N3CC/data/77e05078e/46a00d72047649f89dc9ddcf43743496 [2021-10-11 00:25:39,181 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:25:39,183 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:25:39,185 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:25:39,185 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:25:39,188 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:25:39,189 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:25:39" (1/1) ... [2021-10-11 00:25:39,191 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dda7e91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:39, skipping insertion in model container [2021-10-11 00:25:39,191 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:25:39" (1/1) ... [2021-10-11 00:25:39,205 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:25:39,229 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:25:39,410 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_4eb08154-271d-4296-ba7b-8dab5749bbba/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_unwindbound5.c[454,467] [2021-10-11 00:25:39,425 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:25:39,439 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:25:39,448 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_4eb08154-271d-4296-ba7b-8dab5749bbba/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_unwindbound5.c[454,467] [2021-10-11 00:25:39,453 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:25:39,468 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:25:39,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:39 WrapperNode [2021-10-11 00:25:39,469 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:25:39,470 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:25:39,471 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:25:39,471 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:25:39,479 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:39" (1/1) ... [2021-10-11 00:25:39,486 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:39" (1/1) ... [2021-10-11 00:25:39,504 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:25:39,505 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:25:39,506 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:25:39,506 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:25:39,514 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:39" (1/1) ... [2021-10-11 00:25:39,515 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:39" (1/1) ... [2021-10-11 00:25:39,516 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:39" (1/1) ... [2021-10-11 00:25:39,517 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:39" (1/1) ... [2021-10-11 00:25:39,520 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:39" (1/1) ... [2021-10-11 00:25:39,524 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:39" (1/1) ... [2021-10-11 00:25:39,526 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:39" (1/1) ... [2021-10-11 00:25:39,527 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:25:39,529 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:25:39,529 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:25:39,529 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:25:39,530 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:39" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb08154-271d-4296-ba7b-8dab5749bbba/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 00:25:39,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 00:25:39,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:25:39,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:25:39,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:25:39,931 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:25:39,931 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2021-10-11 00:25:39,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:25:39 BoogieIcfgContainer [2021-10-11 00:25:39,933 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:25:39,935 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:25:39,935 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:25:39,953 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:25:39,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:25:39" (1/3) ... [2021-10-11 00:25:39,955 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@690acc3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:25:39, skipping insertion in model container [2021-10-11 00:25:39,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:39" (2/3) ... [2021-10-11 00:25:39,967 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@690acc3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:25:39, skipping insertion in model container [2021-10-11 00:25:39,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:25:39" (3/3) ... [2021-10-11 00:25:39,969 INFO L111 eAbstractionObserver]: Analyzing ICFG ps2-ll_unwindbound5.c [2021-10-11 00:25:39,982 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:25:39,992 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-10-11 00:25:40,004 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-11 00:25:40,031 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:25:40,031 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:25:40,031 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:25:40,031 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:25:40,031 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:25:40,032 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:25:40,032 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:25:40,032 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:25:40,045 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2021-10-11 00:25:40,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-11 00:25:40,050 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:25:40,051 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-11 00:25:40,051 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:25:40,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:25:40,057 INFO L82 PathProgramCache]: Analyzing trace with hash 889571274, now seen corresponding path program 1 times [2021-10-11 00:25:40,066 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:25:40,067 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473267131] [2021-10-11 00:25:40,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:25:40,172 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 00:25:40,174 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1759898364] [2021-10-11 00:25:40,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb08154-271d-4296-ba7b-8dab5749bbba/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 00:25:40,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:25:40,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-11 00:25:40,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:25:40,359 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 00:25:40,359 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473267131] [2021-10-11 00:25:40,360 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 00:25:40,360 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1759898364] [2021-10-11 00:25:40,361 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:25:40,361 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 00:25:40,362 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577144293] [2021-10-11 00:25:40,367 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 00:25:40,367 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:25:40,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:25:40,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:25:40,383 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 4 states. [2021-10-11 00:25:40,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:25:40,459 INFO L93 Difference]: Finished difference Result 44 states and 58 transitions. [2021-10-11 00:25:40,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 00:25:40,461 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2021-10-11 00:25:40,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:25:40,469 INFO L225 Difference]: With dead ends: 44 [2021-10-11 00:25:40,470 INFO L226 Difference]: Without dead ends: 19 [2021-10-11 00:25:40,473 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:25:40,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-10-11 00:25:40,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 16. [2021-10-11 00:25:40,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-10-11 00:25:40,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2021-10-11 00:25:40,508 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 6 [2021-10-11 00:25:40,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:25:40,508 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2021-10-11 00:25:40,508 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 00:25:40,509 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2021-10-11 00:25:40,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-11 00:25:40,509 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:25:40,510 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2021-10-11 00:25:40,723 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-10-11 00:25:40,723 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:25:40,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:25:40,724 INFO L82 PathProgramCache]: Analyzing trace with hash 855725686, now seen corresponding path program 1 times [2021-10-11 00:25:40,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:25:40,725 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886421366] [2021-10-11 00:25:40,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:25:40,749 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 00:25:40,752 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1981468615] [2021-10-11 00:25:40,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb08154-271d-4296-ba7b-8dab5749bbba/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 00:25:40,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:25:40,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-11 00:25:40,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:25:40,896 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:25:40,897 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886421366] [2021-10-11 00:25:40,897 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 00:25:40,898 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1981468615] [2021-10-11 00:25:40,898 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-11 00:25:40,899 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2021-10-11 00:25:40,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664109659] [2021-10-11 00:25:40,901 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 00:25:40,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:25:40,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 00:25:40,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:25:40,906 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 6 states. [2021-10-11 00:25:40,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:25:40,980 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2021-10-11 00:25:40,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 00:25:40,980 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2021-10-11 00:25:40,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:25:40,981 INFO L225 Difference]: With dead ends: 29 [2021-10-11 00:25:40,981 INFO L226 Difference]: Without dead ends: 23 [2021-10-11 00:25:40,982 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-11 00:25:40,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-10-11 00:25:40,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 20. [2021-10-11 00:25:40,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-10-11 00:25:40,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2021-10-11 00:25:40,988 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 10 [2021-10-11 00:25:40,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:25:40,988 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2021-10-11 00:25:40,988 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 00:25:40,988 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2021-10-11 00:25:40,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-11 00:25:40,989 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:25:40,989 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1] [2021-10-11 00:25:41,211 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:25:41,211 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:25:41,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:25:41,212 INFO L82 PathProgramCache]: Analyzing trace with hash -1778536670, now seen corresponding path program 2 times [2021-10-11 00:25:41,212 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:25:41,212 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836227869] [2021-10-11 00:25:41,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:25:41,231 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 00:25:41,231 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1147394252] [2021-10-11 00:25:41,231 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_4eb08154-271d-4296-ba7b-8dab5749bbba/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 00:25:41,275 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-11 00:25:41,276 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-11 00:25:41,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 23 conjunts are in the unsatisfiable core [2021-10-11 00:25:41,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:25:41,363 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:25:41,363 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836227869] [2021-10-11 00:25:41,363 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 00:25:41,363 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1147394252] [2021-10-11 00:25:41,364 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-11 00:25:41,364 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-10-11 00:25:41,364 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604730658] [2021-10-11 00:25:41,364 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-10-11 00:25:41,365 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:25:41,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-11 00:25:41,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-11 00:25:41,366 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 7 states. [2021-10-11 00:25:41,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:25:41,439 INFO L93 Difference]: Finished difference Result 33 states and 36 transitions. [2021-10-11 00:25:41,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 00:25:41,439 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2021-10-11 00:25:41,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:25:41,440 INFO L225 Difference]: With dead ends: 33 [2021-10-11 00:25:41,440 INFO L226 Difference]: Without dead ends: 27 [2021-10-11 00:25:41,441 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-10-11 00:25:41,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-10-11 00:25:41,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 24. [2021-10-11 00:25:41,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2021-10-11 00:25:41,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2021-10-11 00:25:41,446 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 14 [2021-10-11 00:25:41,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:25:41,447 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2021-10-11 00:25:41,447 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-10-11 00:25:41,447 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2021-10-11 00:25:41,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-11 00:25:41,448 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:25:41,448 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 1, 1, 1, 1] [2021-10-11 00:25:41,671 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:25:41,671 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:25:41,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:25:41,672 INFO L82 PathProgramCache]: Analyzing trace with hash -58338866, now seen corresponding path program 3 times [2021-10-11 00:25:41,672 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:25:41,672 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858498442] [2021-10-11 00:25:41,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:25:41,684 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 00:25:41,692 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1747936893] [2021-10-11 00:25:41,692 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb08154-271d-4296-ba7b-8dab5749bbba/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:25:41,767 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-10-11 00:25:41,768 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-11 00:25:41,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-11 00:25:41,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:25:41,892 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858498442] [2021-10-11 00:25:41,893 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 00:25:41,893 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1747936893] [2021-10-11 00:25:41,894 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: null [2021-10-11 00:25:41,894 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:25:41,894 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-11 00:25:41,895 ERROR L205 FreeRefinementEngine]: Strategy CAMEL failed to provide any proof altough trace is infeasible [2021-10-11 00:25:41,895 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 00:25:42,127 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:25:42,143 WARN L254 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2021-10-11 00:25:42,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:25:42 BoogieIcfgContainer [2021-10-11 00:25:42,144 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:25:42,144 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:25:42,145 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:25:42,145 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:25:42,145 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:25:39" (3/4) ... [2021-10-11 00:25:42,148 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-11 00:25:42,148 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:25:42,150 INFO L168 Benchmark]: Toolchain (without parser) took 2965.71 ms. Allocated memory was 136.3 MB in the beginning and 163.6 MB in the end (delta: 27.3 MB). Free memory was 98.5 MB in the beginning and 134.5 MB in the end (delta: -36.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:25:42,150 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 136.3 MB. Free memory is still 114.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:25:42,151 INFO L168 Benchmark]: CACSL2BoogieTranslator took 284.94 ms. Allocated memory is still 136.3 MB. Free memory was 98.2 MB in the beginning and 110.2 MB in the end (delta: -12.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:25:42,152 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.35 ms. Allocated memory is still 136.3 MB. Free memory was 110.2 MB in the beginning and 108.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:25:42,152 INFO L168 Benchmark]: Boogie Preprocessor took 22.38 ms. Allocated memory is still 136.3 MB. Free memory was 108.8 MB in the beginning and 107.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:25:42,153 INFO L168 Benchmark]: RCFGBuilder took 404.50 ms. Allocated memory is still 136.3 MB. Free memory was 107.7 MB in the beginning and 95.5 MB in the end (delta: 12.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:25:42,154 INFO L168 Benchmark]: TraceAbstraction took 2209.57 ms. Allocated memory was 136.3 MB in the beginning and 163.6 MB in the end (delta: 27.3 MB). Free memory was 95.1 MB in the beginning and 135.1 MB in the end (delta: -39.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:25:42,154 INFO L168 Benchmark]: Witness Printer took 3.61 ms. Allocated memory is still 163.6 MB. Free memory was 135.1 MB in the beginning and 134.5 MB in the end (delta: 553.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:25:42,158 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 136.3 MB. Free memory is still 114.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 284.94 ms. Allocated memory is still 136.3 MB. Free memory was 98.2 MB in the beginning and 110.2 MB in the end (delta: -12.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 34.35 ms. Allocated memory is still 136.3 MB. Free memory was 110.2 MB in the beginning and 108.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.38 ms. Allocated memory is still 136.3 MB. Free memory was 108.8 MB in the beginning and 107.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 404.50 ms. Allocated memory is still 136.3 MB. Free memory was 107.7 MB in the beginning and 95.5 MB in the end (delta: 12.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2209.57 ms. Allocated memory was 136.3 MB in the beginning and 163.6 MB in the end (delta: 27.3 MB). Free memory was 95.1 MB in the beginning and 135.1 MB in the end (delta: -39.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 3.61 ms. Allocated memory is still 163.6 MB. Free memory was 135.1 MB in the beginning and 134.5 MB in the end (delta: 553.2 kB). 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: [L17] int counter = 0; [L19] int k; [L20] long long y, x, c; [L21] k = __VERIFIER_nondet_int() [L23] y = 0 [L24] x = 0 [L25] c = 0 [L27] EXPR counter++ [L27] COND TRUE counter++<5 [L10] COND FALSE !(!(cond)) [L30] COND FALSE !(!(c < k)) [L33] c = c + 1 [L34] y = y + 1 [L35] x = y + x [L27] EXPR counter++ [L27] COND TRUE counter++<5 [L10] COND FALSE !(!(cond)) [L30] COND FALSE !(!(c < k)) [L33] c = c + 1 [L34] y = y + 1 [L35] x = y + x [L27] EXPR counter++ [L27] COND TRUE counter++<5 [L10] COND FALSE !(!(cond)) [L30] COND FALSE !(!(c < k)) [L33] c = c + 1 [L34] y = y + 1 [L35] x = y + x [L27] EXPR counter++ [L27] COND TRUE counter++<5 [L10] COND TRUE !(cond) [L12] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 2.0s, OverallIterations: 4, TraceHistogramMax: 4, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 36 SDtfs, 43 SDslu, 91 SDs, 0 SdLazy, 90 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred 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, 9 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 1611 SizeOfPredicates, 13 NumberOfNonLiveVariables, 216 ConjunctsInSsa, 52 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/13 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 00:25:44,725 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:25:44,727 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:25:44,759 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:25:44,760 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:25:44,761 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:25:44,763 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:25:44,766 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:25:44,768 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:25:44,769 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:25:44,770 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:25:44,772 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:25:44,773 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:25:44,774 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:25:44,775 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:25:44,777 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:25:44,778 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:25:44,780 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:25:44,789 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:25:44,796 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:25:44,798 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:25:44,808 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:25:44,809 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:25:44,810 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:25:44,814 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:25:44,814 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:25:44,815 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:25:44,816 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:25:44,817 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:25:44,818 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:25:44,819 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:25:44,820 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:25:44,821 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:25:44,822 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:25:44,823 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:25:44,824 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:25:44,825 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:25:44,825 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:25:44,825 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:25:44,827 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:25:44,827 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:25:44,828 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb08154-271d-4296-ba7b-8dab5749bbba/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-10-11 00:25:44,860 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:25:44,860 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:25:44,862 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:25:44,862 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:25:44,862 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:25:44,865 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:25:44,865 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:25:44,865 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:25:44,865 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:25:44,866 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:25:44,867 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:25:44,867 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:25:44,867 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-11 00:25:44,870 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-11 00:25:44,870 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:25:44,870 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:25:44,870 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:25:44,871 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:25:44,871 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:25:44,871 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:25:44,871 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:25:44,871 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:25:44,872 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:25:44,872 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:25:44,872 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:25:44,873 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-11 00:25:44,873 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-11 00:25:44,873 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:25:44,873 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:25:44,873 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 00:25:44,874 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_4eb08154-271d-4296-ba7b-8dab5749bbba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb08154-271d-4296-ba7b-8dab5749bbba/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ad2bc1e7850d2ee1164096f3752e093539027578 [2021-10-11 00:25:45,264 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:25:45,292 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:25:45,295 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:25:45,296 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:25:45,298 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:25:45,299 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb08154-271d-4296-ba7b-8dab5749bbba/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_unwindbound5.c [2021-10-11 00:25:45,380 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb08154-271d-4296-ba7b-8dab5749bbba/bin/uautomizer-Z5i5R5N3CC/data/4fd1bf993/a5e0e616927346d5ae01bc6ec69ea533/FLAGbf09f807d [2021-10-11 00:25:45,871 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:25:45,871 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb08154-271d-4296-ba7b-8dab5749bbba/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_unwindbound5.c [2021-10-11 00:25:45,878 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb08154-271d-4296-ba7b-8dab5749bbba/bin/uautomizer-Z5i5R5N3CC/data/4fd1bf993/a5e0e616927346d5ae01bc6ec69ea533/FLAGbf09f807d [2021-10-11 00:25:46,242 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb08154-271d-4296-ba7b-8dab5749bbba/bin/uautomizer-Z5i5R5N3CC/data/4fd1bf993/a5e0e616927346d5ae01bc6ec69ea533 [2021-10-11 00:25:46,245 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:25:46,249 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:25:46,251 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:25:46,252 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:25:46,256 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:25:46,257 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:25:46" (1/1) ... [2021-10-11 00:25:46,265 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13f76983 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:46, skipping insertion in model container [2021-10-11 00:25:46,265 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:25:46" (1/1) ... [2021-10-11 00:25:46,273 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:25:46,290 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:25:46,449 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_4eb08154-271d-4296-ba7b-8dab5749bbba/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_unwindbound5.c[454,467] [2021-10-11 00:25:46,463 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:25:46,478 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:25:46,496 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_4eb08154-271d-4296-ba7b-8dab5749bbba/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_unwindbound5.c[454,467] [2021-10-11 00:25:46,502 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:25:46,517 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:25:46,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:46 WrapperNode [2021-10-11 00:25:46,518 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:25:46,520 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:25:46,520 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:25:46,520 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:25:46,528 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:46" (1/1) ... [2021-10-11 00:25:46,537 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:46" (1/1) ... [2021-10-11 00:25:46,599 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:25:46,600 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:25:46,601 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:25:46,601 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:25:46,609 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:46" (1/1) ... [2021-10-11 00:25:46,609 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:46" (1/1) ... [2021-10-11 00:25:46,623 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:46" (1/1) ... [2021-10-11 00:25:46,623 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:46" (1/1) ... [2021-10-11 00:25:46,629 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:46" (1/1) ... [2021-10-11 00:25:46,633 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:46" (1/1) ... [2021-10-11 00:25:46,634 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:46" (1/1) ... [2021-10-11 00:25:46,636 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:25:46,637 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:25:46,638 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:25:46,638 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:25:46,639 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:46" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb08154-271d-4296-ba7b-8dab5749bbba/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 00:25:46,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-11 00:25:46,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:25:46,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:25:46,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:25:47,305 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:25:47,305 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2021-10-11 00:25:47,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:25:47 BoogieIcfgContainer [2021-10-11 00:25:47,307 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:25:47,309 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:25:47,309 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:25:47,317 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:25:47,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:25:46" (1/3) ... [2021-10-11 00:25:47,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ad4677a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:25:47, skipping insertion in model container [2021-10-11 00:25:47,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:46" (2/3) ... [2021-10-11 00:25:47,319 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ad4677a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:25:47, skipping insertion in model container [2021-10-11 00:25:47,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:25:47" (3/3) ... [2021-10-11 00:25:47,320 INFO L111 eAbstractionObserver]: Analyzing ICFG ps2-ll_unwindbound5.c [2021-10-11 00:25:47,339 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:25:47,342 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-10-11 00:25:47,355 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-11 00:25:47,394 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:25:47,394 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:25:47,394 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:25:47,394 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:25:47,394 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:25:47,394 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:25:47,395 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:25:47,395 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:25:47,410 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2021-10-11 00:25:47,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-11 00:25:47,422 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:25:47,422 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-11 00:25:47,423 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:25:47,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:25:47,429 INFO L82 PathProgramCache]: Analyzing trace with hash 889571274, now seen corresponding path program 1 times [2021-10-11 00:25:47,441 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-11 00:25:47,442 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1939547210] [2021-10-11 00:25:47,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb08154-271d-4296-ba7b-8dab5749bbba/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 00:25:47,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:25:47,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 00:25:47,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:25:47,804 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 00:25:47,804 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 00:25:47,805 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1939547210] [2021-10-11 00:25:47,806 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:25:47,806 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 00:25:47,807 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199078426] [2021-10-11 00:25:47,812 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 00:25:47,812 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-11 00:25:47,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:25:47,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:25:47,829 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 4 states. [2021-10-11 00:25:48,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:25:48,239 INFO L93 Difference]: Finished difference Result 44 states and 58 transitions. [2021-10-11 00:25:48,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 00:25:48,245 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2021-10-11 00:25:48,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:25:48,253 INFO L225 Difference]: With dead ends: 44 [2021-10-11 00:25:48,253 INFO L226 Difference]: Without dead ends: 19 [2021-10-11 00:25:48,257 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:25:48,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-10-11 00:25:48,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 16. [2021-10-11 00:25:48,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-10-11 00:25:48,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2021-10-11 00:25:48,289 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 6 [2021-10-11 00:25:48,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:25:48,289 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2021-10-11 00:25:48,290 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 00:25:48,290 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2021-10-11 00:25:48,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-11 00:25:48,290 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:25:48,291 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2021-10-11 00:25:48,496 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2021-10-11 00:25:48,496 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:25:48,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:25:48,497 INFO L82 PathProgramCache]: Analyzing trace with hash 855725686, now seen corresponding path program 1 times [2021-10-11 00:25:48,498 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-11 00:25:48,498 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1054433561] [2021-10-11 00:25:48,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb08154-271d-4296-ba7b-8dab5749bbba/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 00:25:48,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:25:48,647 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-11 00:25:48,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:25:48,742 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:25:48,742 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 00:25:49,513 WARN L197 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2021-10-11 00:25:50,055 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-11 00:25:50,056 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1054433561] [2021-10-11 00:25:50,056 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-11 00:25:50,056 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 7 [2021-10-11 00:25:50,057 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400488901] [2021-10-11 00:25:50,058 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-10-11 00:25:50,058 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-11 00:25:50,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-11 00:25:50,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-10-11 00:25:50,059 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 7 states. [2021-10-11 00:25:50,816 WARN L197 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-10-11 00:25:51,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:25:51,040 INFO L93 Difference]: Finished difference Result 22 states and 26 transitions. [2021-10-11 00:25:51,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 00:25:51,046 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10 [2021-10-11 00:25:51,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:25:51,046 INFO L225 Difference]: With dead ends: 22 [2021-10-11 00:25:51,047 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 00:25:51,048 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-10-11 00:25:51,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 00:25:51,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 00:25:51,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 00:25:51,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 00:25:51,049 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2021-10-11 00:25:51,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:25:51,049 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:25:51,049 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-10-11 00:25:51,049 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 00:25:51,049 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 00:25:51,258 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2021-10-11 00:25:51,260 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 00:25:52,311 WARN L197 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 27 DAG size of output: 20 [2021-10-11 00:25:53,165 WARN L197 SmtUtils]: Spent 851.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 16 [2021-10-11 00:25:53,167 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 00:25:53,167 INFO L262 CegarLoopResult]: For program point L27-1(lines 27 36) no Hoare annotation was computed. [2021-10-11 00:25:53,167 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2021-10-11 00:25:53,168 INFO L258 CegarLoopResult]: At program point L27-3(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 ((_ sign_extend 32) (_ bv2 32)) ULTIMATE.start_main_~x~0)) ULTIMATE.start_main_~y~0 (bvmul ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0)))) (and (= .cse0 ULTIMATE.start_main_~x~0) (= .cse0 ULTIMATE.start_main_~y~0)))) [2021-10-11 00:25:53,168 INFO L262 CegarLoopResult]: For program point L27-4(lines 27 36) no Hoare annotation was computed. [2021-10-11 00:25:53,168 INFO L262 CegarLoopResult]: For program point L11(lines 11 12) no Hoare annotation was computed. [2021-10-11 00:25:53,168 INFO L262 CegarLoopResult]: For program point L11-1(lines 11 12) no Hoare annotation was computed. [2021-10-11 00:25:53,169 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-11 00:25:53,169 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 00:25:53,169 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-11 00:25:53,169 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2021-10-11 00:25:53,169 INFO L262 CegarLoopResult]: For program point L10(lines 10 13) no Hoare annotation was computed. [2021-10-11 00:25:53,170 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 ((_ sign_extend 32) (_ bv2 32)) ULTIMATE.start_main_~x~0)) ULTIMATE.start_main_~y~0 (bvmul ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0)))) [2021-10-11 00:25:53,170 INFO L262 CegarLoopResult]: For program point L10-3(lines 10 13) no Hoare annotation was computed. [2021-10-11 00:25:53,170 INFO L265 CegarLoopResult]: At program point L39(lines 18 40) the Hoare annotation is: true [2021-10-11 00:25:53,170 INFO L265 CegarLoopResult]: At program point L10-5(lines 9 15) the Hoare annotation is: true [2021-10-11 00:25:53,186 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 00:25:53,193 INFO L168 Benchmark]: Toolchain (without parser) took 6942.10 ms. Allocated memory was 52.4 MB in the beginning and 75.5 MB in the end (delta: 23.1 MB). Free memory was 29.0 MB in the beginning and 54.1 MB in the end (delta: -25.1 MB). Peak memory consumption was 18.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:25:53,195 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 52.4 MB. Free memory was 33.8 MB in the beginning and 33.8 MB in the end (delta: 37.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:25:53,196 INFO L168 Benchmark]: CACSL2BoogieTranslator took 267.37 ms. Allocated memory is still 52.4 MB. Free memory was 28.8 MB in the beginning and 33.9 MB in the end (delta: -5.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:25:53,198 INFO L168 Benchmark]: Boogie Procedure Inliner took 80.23 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 33.9 MB in the beginning and 46.6 MB in the end (delta: -12.7 MB). Peak memory consumption was 2.3 MB. Max. memory is 16.1 GB. [2021-10-11 00:25:53,200 INFO L168 Benchmark]: Boogie Preprocessor took 36.26 ms. Allocated memory is still 62.9 MB. Free memory was 46.6 MB in the beginning and 45.5 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:25:53,200 INFO L168 Benchmark]: RCFGBuilder took 669.99 ms. Allocated memory is still 62.9 MB. Free memory was 45.5 MB in the beginning and 33.0 MB in the end (delta: 12.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:25:53,208 INFO L168 Benchmark]: TraceAbstraction took 5881.42 ms. Allocated memory was 62.9 MB in the beginning and 75.5 MB in the end (delta: 12.6 MB). Free memory was 32.5 MB in the beginning and 54.1 MB in the end (delta: -21.6 MB). Peak memory consumption was 12.7 MB. Max. memory is 16.1 GB. [2021-10-11 00:25:53,214 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 52.4 MB. Free memory was 33.8 MB in the beginning and 33.8 MB in the end (delta: 37.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 267.37 ms. Allocated memory is still 52.4 MB. Free memory was 28.8 MB in the beginning and 33.9 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 80.23 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 33.9 MB in the beginning and 46.6 MB in the end (delta: -12.7 MB). Peak memory consumption was 2.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 36.26 ms. Allocated memory is still 62.9 MB. Free memory was 46.6 MB in the beginning and 45.5 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 669.99 ms. Allocated memory is still 62.9 MB. Free memory was 45.5 MB in the beginning and 33.0 MB in the end (delta: 12.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5881.42 ms. Allocated memory was 62.9 MB in the beginning and 75.5 MB in the end (delta: 12.6 MB). Free memory was 32.5 MB in the beginning and 54.1 MB in the end (delta: -21.6 MB). Peak memory consumption was 12.7 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: 18]: 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...