./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound10.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_de5e905a-cb6d-4c4e-82d9-48e526ade3ab/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de5e905a-cb6d-4c4e-82d9-48e526ade3ab/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_de5e905a-cb6d-4c4e-82d9-48e526ade3ab/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de5e905a-cb6d-4c4e-82d9-48e526ade3ab/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de5e905a-cb6d-4c4e-82d9-48e526ade3ab/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_de5e905a-cb6d-4c4e-82d9-48e526ade3ab/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 aea7f1374c5d76c33344f6e41fb1f8c900f52c61 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_de5e905a-cb6d-4c4e-82d9-48e526ade3ab/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de5e905a-cb6d-4c4e-82d9-48e526ade3ab/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_de5e905a-cb6d-4c4e-82d9-48e526ade3ab/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de5e905a-cb6d-4c4e-82d9-48e526ade3ab/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de5e905a-cb6d-4c4e-82d9-48e526ade3ab/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_de5e905a-cb6d-4c4e-82d9-48e526ade3ab/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 aea7f1374c5d76c33344f6e41fb1f8c900f52c61 ....................................................................................................................................................................................................................................................................................................................................................................................................... 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 00:29:28,495 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:29:28,499 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:29:28,549 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:29:28,550 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:29:28,556 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:29:28,559 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:29:28,563 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:29:28,566 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:29:28,573 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:29:28,574 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:29:28,576 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:29:28,576 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:29:28,580 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:29:28,582 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:29:28,584 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:29:28,584 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:29:28,585 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:29:28,588 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:29:28,590 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:29:28,592 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:29:28,595 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:29:28,599 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:29:28,600 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:29:28,611 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:29:28,612 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:29:28,612 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:29:28,614 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:29:28,615 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:29:28,617 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:29:28,617 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:29:28,618 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:29:28,620 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:29:28,622 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:29:28,623 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:29:28,623 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:29:28,624 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:29:28,625 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:29:28,625 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:29:28,626 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:29:28,627 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:29:28,629 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de5e905a-cb6d-4c4e-82d9-48e526ade3ab/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-11 00:29:28,655 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:29:28,655 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:29:28,656 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:29:28,657 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:29:28,657 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:29:28,657 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:29:28,657 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:29:28,658 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:29:28,658 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:29:28,658 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:29:28,658 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:29:28,658 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:29:28,659 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:29:28,659 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:29:28,659 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:29:28,659 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:29:28,659 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:29:28,660 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:29:28,660 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:29:28,660 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:29:28,660 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:29:28,660 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:29:28,661 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:29:28,661 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:29:28,661 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:29:28,661 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:29:28,661 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:29:28,662 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:29:28,662 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_de5e905a-cb6d-4c4e-82d9-48e526ade3ab/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de5e905a-cb6d-4c4e-82d9-48e526ade3ab/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aea7f1374c5d76c33344f6e41fb1f8c900f52c61 [2021-10-11 00:29:28,908 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:29:28,931 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:29:28,934 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:29:28,935 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:29:28,940 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:29:28,941 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de5e905a-cb6d-4c4e-82d9-48e526ade3ab/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound10.c [2021-10-11 00:29:29,045 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de5e905a-cb6d-4c4e-82d9-48e526ade3ab/bin/uautomizer-Z5i5R5N3CC/data/6236aaf66/2d3179c360154fed930caf88d1de28ea/FLAGb337cf00a [2021-10-11 00:29:29,625 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:29:29,626 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de5e905a-cb6d-4c4e-82d9-48e526ade3ab/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound10.c [2021-10-11 00:29:29,639 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de5e905a-cb6d-4c4e-82d9-48e526ade3ab/bin/uautomizer-Z5i5R5N3CC/data/6236aaf66/2d3179c360154fed930caf88d1de28ea/FLAGb337cf00a [2021-10-11 00:29:29,981 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de5e905a-cb6d-4c4e-82d9-48e526ade3ab/bin/uautomizer-Z5i5R5N3CC/data/6236aaf66/2d3179c360154fed930caf88d1de28ea [2021-10-11 00:29:29,992 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:29:29,994 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:29:29,995 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:29:29,996 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:29:30,000 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:29:30,001 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:29:29" (1/1) ... [2021-10-11 00:29:30,003 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d9a08ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:29:30, skipping insertion in model container [2021-10-11 00:29:30,003 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:29:29" (1/1) ... [2021-10-11 00:29:30,011 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:29:30,027 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:29:30,253 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_de5e905a-cb6d-4c4e-82d9-48e526ade3ab/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound10.c[454,467] [2021-10-11 00:29:30,266 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:29:30,274 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:29:30,286 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_de5e905a-cb6d-4c4e-82d9-48e526ade3ab/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound10.c[454,467] [2021-10-11 00:29:30,290 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:29:30,308 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:29:30,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:29:30 WrapperNode [2021-10-11 00:29:30,311 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:29:30,314 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:29:30,315 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:29:30,316 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:29:30,327 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:29:30" (1/1) ... [2021-10-11 00:29:30,340 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:29:30" (1/1) ... [2021-10-11 00:29:30,366 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:29:30,368 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:29:30,368 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:29:30,368 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:29:30,377 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:29:30" (1/1) ... [2021-10-11 00:29:30,378 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:29:30" (1/1) ... [2021-10-11 00:29:30,393 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:29:30" (1/1) ... [2021-10-11 00:29:30,393 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:29:30" (1/1) ... [2021-10-11 00:29:30,397 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:29:30" (1/1) ... [2021-10-11 00:29:30,400 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:29:30" (1/1) ... [2021-10-11 00:29:30,402 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:29:30" (1/1) ... [2021-10-11 00:29:30,404 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:29:30,408 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:29:30,408 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:29:30,408 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:29:30,410 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:29:30" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de5e905a-cb6d-4c4e-82d9-48e526ade3ab/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 00:29:30,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 00:29:30,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:29:30,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:29:30,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:29:30,749 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:29:30,749 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2021-10-11 00:29:30,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:29:30 BoogieIcfgContainer [2021-10-11 00:29:30,751 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:29:30,753 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:29:30,753 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:29:30,757 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:29:30,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:29:29" (1/3) ... [2021-10-11 00:29:30,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@457e1e28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:29:30, skipping insertion in model container [2021-10-11 00:29:30,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:29:30" (2/3) ... [2021-10-11 00:29:30,759 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@457e1e28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:29:30, skipping insertion in model container [2021-10-11 00:29:30,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:29:30" (3/3) ... [2021-10-11 00:29:30,760 INFO L111 eAbstractionObserver]: Analyzing ICFG ps2-ll_valuebound10.c [2021-10-11 00:29:30,775 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:29:30,778 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-10-11 00:29:30,791 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-11 00:29:30,819 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:29:30,819 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:29:30,819 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:29:30,820 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:29:30,820 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:29:30,820 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:29:30,820 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:29:30,820 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:29:30,835 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2021-10-11 00:29:30,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-11 00:29:30,841 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:29:30,841 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:29:30,842 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:29:30,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:29:30,849 INFO L82 PathProgramCache]: Analyzing trace with hash 1804972333, now seen corresponding path program 1 times [2021-10-11 00:29:30,875 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:29:30,876 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929858539] [2021-10-11 00:29:30,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:29:31,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:29:31,143 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 00:29:31,146 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929858539] [2021-10-11 00:29:31,147 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:29:31,148 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:29:31,148 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274379806] [2021-10-11 00:29:31,153 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 00:29:31,154 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:29:31,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 00:29:31,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 00:29:31,181 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 2 states. [2021-10-11 00:29:31,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:29:31,204 INFO L93 Difference]: Finished difference Result 31 states and 40 transitions. [2021-10-11 00:29:31,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 00:29:31,206 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2021-10-11 00:29:31,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:29:31,226 INFO L225 Difference]: With dead ends: 31 [2021-10-11 00:29:31,230 INFO L226 Difference]: Without dead ends: 13 [2021-10-11 00:29:31,234 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 00:29:31,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-10-11 00:29:31,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-10-11 00:29:31,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-10-11 00:29:31,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2021-10-11 00:29:31,270 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 7 [2021-10-11 00:29:31,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:29:31,271 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2021-10-11 00:29:31,272 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 00:29:31,273 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2021-10-11 00:29:31,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-11 00:29:31,273 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:29:31,273 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:29:31,275 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 00:29:31,275 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:29:31,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:29:31,280 INFO L82 PathProgramCache]: Analyzing trace with hash 1806819375, now seen corresponding path program 1 times [2021-10-11 00:29:31,280 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:29:31,280 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486583512] [2021-10-11 00:29:31,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:29:31,318 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 00:29:31,319 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [988940114] [2021-10-11 00:29:31,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de5e905a-cb6d-4c4e-82d9-48e526ade3ab/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 00:29:31,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:29:31,398 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-11 00:29:31,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:29:31,490 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 00:29:31,490 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486583512] [2021-10-11 00:29:31,491 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 00:29:31,491 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [988940114] [2021-10-11 00:29:31,491 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:29:31,491 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:29:31,492 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163138722] [2021-10-11 00:29:31,493 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:29:31,493 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:29:31,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:29:31,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:29:31,495 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 5 states. [2021-10-11 00:29:31,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:29:31,572 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2021-10-11 00:29:31,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 00:29:31,573 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2021-10-11 00:29:31,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:29:31,573 INFO L225 Difference]: With dead ends: 23 [2021-10-11 00:29:31,574 INFO L226 Difference]: Without dead ends: 17 [2021-10-11 00:29:31,575 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-11 00:29:31,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-10-11 00:29:31,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2021-10-11 00:29:31,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-10-11 00:29:31,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2021-10-11 00:29:31,580 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 7 [2021-10-11 00:29:31,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:29:31,581 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2021-10-11 00:29:31,581 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:29:31,581 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2021-10-11 00:29:31,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-11 00:29:31,582 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:29:31,582 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:29:31,798 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-10-11 00:29:31,799 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:29:31,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:29:31,800 INFO L82 PathProgramCache]: Analyzing trace with hash -1864186656, now seen corresponding path program 1 times [2021-10-11 00:29:31,800 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:29:31,800 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682327395] [2021-10-11 00:29:31,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:29:31,817 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 00:29:31,818 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [886782629] [2021-10-11 00:29:31,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de5e905a-cb6d-4c4e-82d9-48e526ade3ab/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 00:29:31,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:29:31,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-11 00:29:31,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:29:31,993 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:29:31,994 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682327395] [2021-10-11 00:29:31,994 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 00:29:31,994 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [886782629] [2021-10-11 00:29:31,994 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-11 00:29:31,995 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2021-10-11 00:29:31,995 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047503791] [2021-10-11 00:29:31,995 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 00:29:31,996 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:29:31,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 00:29:31,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:29:31,997 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 6 states. [2021-10-11 00:29:32,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:29:32,130 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2021-10-11 00:29:32,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 00:29:32,131 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2021-10-11 00:29:32,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:29:32,132 INFO L225 Difference]: With dead ends: 26 [2021-10-11 00:29:32,132 INFO L226 Difference]: Without dead ends: 20 [2021-10-11 00:29:32,133 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-10-11 00:29:32,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-10-11 00:29:32,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2021-10-11 00:29:32,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-10-11 00:29:32,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2021-10-11 00:29:32,138 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 10 [2021-10-11 00:29:32,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:29:32,139 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2021-10-11 00:29:32,139 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 00:29:32,139 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2021-10-11 00:29:32,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-11 00:29:32,140 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:29:32,140 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1] [2021-10-11 00:29:32,340 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:29:32,341 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:29:32,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:29:32,341 INFO L82 PathProgramCache]: Analyzing trace with hash -2052598129, now seen corresponding path program 2 times [2021-10-11 00:29:32,342 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:29:32,342 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750765151] [2021-10-11 00:29:32,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:29:32,355 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 00:29:32,356 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [756755005] [2021-10-11 00:29:32,356 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_de5e905a-cb6d-4c4e-82d9-48e526ade3ab/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 00:29:32,434 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-11 00:29:32,434 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-11 00:29:32,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 25 conjunts are in the unsatisfiable core [2021-10-11 00:29:32,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:29:32,587 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:29:32,588 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750765151] [2021-10-11 00:29:32,588 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 00:29:32,588 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [756755005] [2021-10-11 00:29:32,588 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-11 00:29:32,589 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-10-11 00:29:32,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58330557] [2021-10-11 00:29:32,591 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-10-11 00:29:32,593 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:29:32,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-11 00:29:32,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-11 00:29:32,594 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 7 states. [2021-10-11 00:29:32,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:29:32,706 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2021-10-11 00:29:32,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 00:29:32,707 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2021-10-11 00:29:32,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:29:32,710 INFO L225 Difference]: With dead ends: 29 [2021-10-11 00:29:32,710 INFO L226 Difference]: Without dead ends: 23 [2021-10-11 00:29:32,713 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 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 00:29:32,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-10-11 00:29:32,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2021-10-11 00:29:32,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2021-10-11 00:29:32,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2021-10-11 00:29:32,730 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 13 [2021-10-11 00:29:32,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:29:32,730 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2021-10-11 00:29:32,733 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-10-11 00:29:32,733 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2021-10-11 00:29:32,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-11 00:29:32,735 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:29:32,736 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1] [2021-10-11 00:29:32,962 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:29:32,962 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:29:32,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:29:32,963 INFO L82 PathProgramCache]: Analyzing trace with hash -1496534400, now seen corresponding path program 3 times [2021-10-11 00:29:32,963 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:29:32,963 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113636060] [2021-10-11 00:29:32,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:29:32,999 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 00:29:32,999 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1561627373] [2021-10-11 00:29:32,999 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_de5e905a-cb6d-4c4e-82d9-48e526ade3ab/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 00:29:33,066 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-11 00:29:33,066 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-11 00:29:33,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-11 00:29:33,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:29:33,144 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113636060] [2021-10-11 00:29:33,144 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 00:29:33,145 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1561627373] [2021-10-11 00:29:33,145 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: null [2021-10-11 00:29:33,145 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:29:33,146 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-11 00:29:33,146 ERROR L205 FreeRefinementEngine]: Strategy CAMEL failed to provide any proof altough trace is infeasible [2021-10-11 00:29:33,146 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 00:29:33,366 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:29:33,390 WARN L254 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2021-10-11 00:29:33,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:29:33 BoogieIcfgContainer [2021-10-11 00:29:33,391 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:29:33,392 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:29:33,392 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:29:33,392 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:29:33,393 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:29:30" (3/4) ... [2021-10-11 00:29:33,397 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-11 00:29:33,397 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:29:33,400 INFO L168 Benchmark]: Toolchain (without parser) took 3404.39 ms. Allocated memory is still 113.2 MB. Free memory was 81.6 MB in the beginning and 76.4 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. [2021-10-11 00:29:33,401 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 83.9 MB. Free memory was 40.3 MB in the beginning and 40.2 MB in the end (delta: 41.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:29:33,409 INFO L168 Benchmark]: CACSL2BoogieTranslator took 315.79 ms. Allocated memory is still 113.2 MB. Free memory was 81.6 MB in the beginning and 90.8 MB in the end (delta: -9.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:29:33,413 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.13 ms. Allocated memory is still 113.2 MB. Free memory was 90.8 MB in the beginning and 89.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:29:33,414 INFO L168 Benchmark]: Boogie Preprocessor took 38.48 ms. Allocated memory is still 113.2 MB. Free memory was 89.5 MB in the beginning and 88.2 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:29:33,415 INFO L168 Benchmark]: RCFGBuilder took 343.69 ms. Allocated memory is still 113.2 MB. Free memory was 88.2 MB in the beginning and 76.0 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-11 00:29:33,416 INFO L168 Benchmark]: TraceAbstraction took 2637.94 ms. Allocated memory is still 113.2 MB. Free memory was 75.6 MB in the beginning and 77.2 MB in the end (delta: -1.6 MB). Peak memory consumption was 450.2 kB. Max. memory is 16.1 GB. [2021-10-11 00:29:33,419 INFO L168 Benchmark]: Witness Printer took 5.48 ms. Allocated memory is still 113.2 MB. Free memory was 77.2 MB in the beginning and 76.4 MB in the end (delta: 815.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:29:33,424 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 83.9 MB. Free memory was 40.3 MB in the beginning and 40.2 MB in the end (delta: 41.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 315.79 ms. Allocated memory is still 113.2 MB. Free memory was 81.6 MB in the beginning and 90.8 MB in the end (delta: -9.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 52.13 ms. Allocated memory is still 113.2 MB. Free memory was 90.8 MB in the beginning and 89.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 38.48 ms. Allocated memory is still 113.2 MB. Free memory was 89.5 MB in the beginning and 88.2 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 343.69 ms. Allocated memory is still 113.2 MB. Free memory was 88.2 MB in the beginning and 76.0 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2637.94 ms. Allocated memory is still 113.2 MB. Free memory was 75.6 MB in the beginning and 77.2 MB in the end (delta: -1.6 MB). Peak memory consumption was 450.2 kB. Max. memory is 16.1 GB. * Witness Printer took 5.48 ms. Allocated memory is still 113.2 MB. Free memory was 77.2 MB in the beginning and 76.4 MB in the end (delta: 815.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L18] int k; [L19] long long y, x, c; [L20] k = __VERIFIER_nondet_int() [L7] COND FALSE !(!cond) [L23] y = 0 [L24] x = 0 [L25] c = 0 [L27] COND TRUE 1 [L10] COND FALSE !(!(cond)) [L30] COND FALSE !(!(c < k)) [L33] c = c + 1 [L34] y = y + 1 [L35] x = y + x [L27] COND TRUE 1 [L10] COND FALSE !(!(cond)) [L30] COND FALSE !(!(c < k)) [L33] c = c + 1 [L34] y = y + 1 [L35] x = y + x [L27] COND TRUE 1 [L10] COND FALSE !(!(cond)) [L30] COND FALSE !(!(c < k)) [L33] c = c + 1 [L34] y = y + 1 [L35] x = y + x [L27] COND TRUE 1 [L10] COND TRUE !(cond) [L12] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 2.5s, OverallIterations: 5, TraceHistogramMax: 4, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 43 SDtfs, 49 SDslu, 64 SDs, 0 SdLazy, 87 SolverSat, 26 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=4, 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, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 1305 SizeOfPredicates, 20 NumberOfNonLiveVariables, 195 ConjunctsInSsa, 59 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 0/9 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 00:29:36,134 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:29:36,139 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:29:36,195 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:29:36,196 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:29:36,202 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:29:36,206 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:29:36,215 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:29:36,218 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:29:36,226 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:29:36,227 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:29:36,229 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:29:36,229 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:29:36,231 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:29:36,232 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:29:36,233 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:29:36,234 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:29:36,236 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:29:36,238 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:29:36,249 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:29:36,252 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:29:36,254 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:29:36,262 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:29:36,264 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:29:36,268 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:29:36,268 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:29:36,269 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:29:36,271 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:29:36,272 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:29:36,273 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:29:36,273 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:29:36,274 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:29:36,277 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:29:36,277 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:29:36,279 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:29:36,279 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:29:36,280 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:29:36,280 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:29:36,281 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:29:36,283 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:29:36,297 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:29:36,298 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de5e905a-cb6d-4c4e-82d9-48e526ade3ab/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-10-11 00:29:36,343 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:29:36,344 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:29:36,346 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:29:36,347 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:29:36,347 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:29:36,347 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:29:36,347 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:29:36,348 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:29:36,348 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:29:36,348 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:29:36,349 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:29:36,349 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:29:36,350 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-11 00:29:36,350 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-11 00:29:36,350 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:29:36,350 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:29:36,350 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:29:36,351 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:29:36,351 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:29:36,351 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:29:36,351 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:29:36,352 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:29:36,352 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:29:36,352 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:29:36,352 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:29:36,352 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-11 00:29:36,353 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-11 00:29:36,353 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:29:36,353 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:29:36,353 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 00:29:36,353 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_de5e905a-cb6d-4c4e-82d9-48e526ade3ab/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de5e905a-cb6d-4c4e-82d9-48e526ade3ab/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aea7f1374c5d76c33344f6e41fb1f8c900f52c61 [2021-10-11 00:29:36,809 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:29:36,850 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:29:36,853 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:29:36,855 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:29:36,856 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:29:36,857 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de5e905a-cb6d-4c4e-82d9-48e526ade3ab/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound10.c [2021-10-11 00:29:36,935 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de5e905a-cb6d-4c4e-82d9-48e526ade3ab/bin/uautomizer-Z5i5R5N3CC/data/5e7864885/e75c6312e5e54edfa65654ffd145d315/FLAG3a8e80ce4 [2021-10-11 00:29:37,566 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:29:37,567 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de5e905a-cb6d-4c4e-82d9-48e526ade3ab/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound10.c [2021-10-11 00:29:37,575 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de5e905a-cb6d-4c4e-82d9-48e526ade3ab/bin/uautomizer-Z5i5R5N3CC/data/5e7864885/e75c6312e5e54edfa65654ffd145d315/FLAG3a8e80ce4 [2021-10-11 00:29:37,931 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de5e905a-cb6d-4c4e-82d9-48e526ade3ab/bin/uautomizer-Z5i5R5N3CC/data/5e7864885/e75c6312e5e54edfa65654ffd145d315 [2021-10-11 00:29:37,938 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:29:37,940 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:29:37,943 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:29:37,943 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:29:37,946 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:29:37,947 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:29:37" (1/1) ... [2021-10-11 00:29:37,951 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@114c2051 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:29:37, skipping insertion in model container [2021-10-11 00:29:37,951 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:29:37" (1/1) ... [2021-10-11 00:29:37,959 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:29:37,977 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:29:38,160 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_de5e905a-cb6d-4c4e-82d9-48e526ade3ab/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound10.c[454,467] [2021-10-11 00:29:38,182 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:29:38,198 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:29:38,217 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_de5e905a-cb6d-4c4e-82d9-48e526ade3ab/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound10.c[454,467] [2021-10-11 00:29:38,232 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:29:38,254 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:29:38,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:29:38 WrapperNode [2021-10-11 00:29:38,256 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:29:38,260 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:29:38,261 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:29:38,261 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:29:38,270 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:29:38" (1/1) ... [2021-10-11 00:29:38,281 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:29:38" (1/1) ... [2021-10-11 00:29:38,344 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:29:38,345 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:29:38,345 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:29:38,346 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:29:38,354 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:29:38" (1/1) ... [2021-10-11 00:29:38,354 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:29:38" (1/1) ... [2021-10-11 00:29:38,369 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:29:38" (1/1) ... [2021-10-11 00:29:38,369 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:29:38" (1/1) ... [2021-10-11 00:29:38,381 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:29:38" (1/1) ... [2021-10-11 00:29:38,385 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:29:38" (1/1) ... [2021-10-11 00:29:38,387 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:29:38" (1/1) ... [2021-10-11 00:29:38,389 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:29:38,390 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:29:38,390 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:29:38,390 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:29:38,391 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:29:38" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de5e905a-cb6d-4c4e-82d9-48e526ade3ab/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 00:29:38,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-11 00:29:38,482 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:29:38,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:29:38,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:29:39,035 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:29:39,035 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2021-10-11 00:29:39,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:29:39 BoogieIcfgContainer [2021-10-11 00:29:39,038 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:29:39,040 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:29:39,041 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:29:39,044 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:29:39,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:29:37" (1/3) ... [2021-10-11 00:29:39,045 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c7b80ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:29:39, skipping insertion in model container [2021-10-11 00:29:39,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:29:38" (2/3) ... [2021-10-11 00:29:39,046 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c7b80ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:29:39, skipping insertion in model container [2021-10-11 00:29:39,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:29:39" (3/3) ... [2021-10-11 00:29:39,051 INFO L111 eAbstractionObserver]: Analyzing ICFG ps2-ll_valuebound10.c [2021-10-11 00:29:39,067 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:29:39,071 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-10-11 00:29:39,098 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-11 00:29:39,135 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:29:39,136 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:29:39,136 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:29:39,136 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:29:39,136 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:29:39,137 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:29:39,137 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:29:39,137 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:29:39,152 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2021-10-11 00:29:39,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-11 00:29:39,157 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:29:39,158 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:29:39,159 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:29:39,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:29:39,166 INFO L82 PathProgramCache]: Analyzing trace with hash 1804972333, now seen corresponding path program 1 times [2021-10-11 00:29:39,179 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-11 00:29:39,179 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [263878953] [2021-10-11 00:29:39,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de5e905a-cb6d-4c4e-82d9-48e526ade3ab/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 00:29:39,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:29:39,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-11 00:29:39,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:29:39,444 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 00:29:39,444 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 00:29:39,446 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [263878953] [2021-10-11 00:29:39,446 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:29:39,447 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:29:39,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612116714] [2021-10-11 00:29:39,454 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 00:29:39,455 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-11 00:29:39,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 00:29:39,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 00:29:39,474 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 2 states. [2021-10-11 00:29:39,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:29:39,496 INFO L93 Difference]: Finished difference Result 31 states and 40 transitions. [2021-10-11 00:29:39,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 00:29:39,498 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2021-10-11 00:29:39,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:29:39,511 INFO L225 Difference]: With dead ends: 31 [2021-10-11 00:29:39,512 INFO L226 Difference]: Without dead ends: 13 [2021-10-11 00:29:39,514 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 00:29:39,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-10-11 00:29:39,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-10-11 00:29:39,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-10-11 00:29:39,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2021-10-11 00:29:39,546 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 7 [2021-10-11 00:29:39,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:29:39,546 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2021-10-11 00:29:39,546 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 00:29:39,547 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2021-10-11 00:29:39,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-11 00:29:39,547 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:29:39,547 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:29:39,764 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2021-10-11 00:29:39,764 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:29:39,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:29:39,765 INFO L82 PathProgramCache]: Analyzing trace with hash 1806819375, now seen corresponding path program 1 times [2021-10-11 00:29:39,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-11 00:29:39,766 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1610215687] [2021-10-11 00:29:39,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de5e905a-cb6d-4c4e-82d9-48e526ade3ab/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 00:29:39,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:29:39,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 00:29:39,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:29:40,053 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 00:29:40,053 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 00:29:40,054 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1610215687] [2021-10-11 00:29:40,054 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:29:40,055 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 00:29:40,055 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849687243] [2021-10-11 00:29:40,056 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 00:29:40,057 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-11 00:29:40,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:29:40,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:29:40,060 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 4 states. [2021-10-11 00:29:40,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:29:40,413 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2021-10-11 00:29:40,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 00:29:40,414 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2021-10-11 00:29:40,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:29:40,415 INFO L225 Difference]: With dead ends: 23 [2021-10-11 00:29:40,415 INFO L226 Difference]: Without dead ends: 17 [2021-10-11 00:29:40,416 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 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 00:29:40,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-10-11 00:29:40,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2021-10-11 00:29:40,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-10-11 00:29:40,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2021-10-11 00:29:40,422 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 7 [2021-10-11 00:29:40,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:29:40,423 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2021-10-11 00:29:40,423 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 00:29:40,423 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2021-10-11 00:29:40,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-11 00:29:40,424 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:29:40,424 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:29:40,638 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2021-10-11 00:29:40,639 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:29:40,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:29:40,639 INFO L82 PathProgramCache]: Analyzing trace with hash -1864186656, now seen corresponding path program 1 times [2021-10-11 00:29:40,640 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-11 00:29:40,641 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [408417867] [2021-10-11 00:29:40,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de5e905a-cb6d-4c4e-82d9-48e526ade3ab/bin/uautomizer-Z5i5R5N3CC/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2021-10-11 00:29:40,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:29:40,800 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-11 00:29:40,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:29:40,891 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:29:40,891 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 00:29:41,800 WARN L197 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2021-10-11 00:29:42,434 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-11 00:29:42,434 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [408417867] [2021-10-11 00:29:42,435 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-11 00:29:42,435 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 7 [2021-10-11 00:29:42,435 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667137969] [2021-10-11 00:29:42,436 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-10-11 00:29:42,436 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-11 00:29:42,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-11 00:29:42,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-10-11 00:29:42,437 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 7 states. [2021-10-11 00:29:43,266 WARN L197 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-10-11 00:29:43,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:29:43,536 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2021-10-11 00:29:43,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 00:29:43,536 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10 [2021-10-11 00:29:43,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:29:43,536 INFO L225 Difference]: With dead ends: 21 [2021-10-11 00:29:43,537 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 00:29:43,537 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-10-11 00:29:43,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 00:29:43,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 00:29:43,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 00:29:43,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 00:29:43,538 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2021-10-11 00:29:43,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:29:43,538 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:29:43,538 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-10-11 00:29:43,539 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 00:29:43,539 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 00:29:43,752 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2021-10-11 00:29:43,753 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 00:29:44,480 WARN L197 SmtUtils]: Spent 681.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 16 [2021-10-11 00:29:45,345 WARN L197 SmtUtils]: Spent 864.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 20 [2021-10-11 00:29:45,348 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 00:29:45,349 INFO L258 CegarLoopResult]: At program point L27-2(lines 27 36) the Hoare annotation is: (let ((.cse0 ((_ sign_extend 32) (_ bv0 32)))) (or (and (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (= .cse0 (bvadd (bvneg (bvmul ((_ 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 00:29:45,349 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2021-10-11 00:29:45,349 INFO L262 CegarLoopResult]: For program point L27-3(lines 27 36) no Hoare annotation was computed. [2021-10-11 00:29:45,350 INFO L262 CegarLoopResult]: For program point L11(lines 11 12) no Hoare annotation was computed. [2021-10-11 00:29:45,350 INFO L262 CegarLoopResult]: For program point L11-1(lines 11 12) no Hoare annotation was computed. [2021-10-11 00:29:45,350 INFO L262 CegarLoopResult]: For program point L7(line 7) no Hoare annotation was computed. [2021-10-11 00:29:45,350 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-11 00:29:45,350 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 00:29:45,351 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-11 00:29:45,351 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2021-10-11 00:29:45,351 INFO L262 CegarLoopResult]: For program point L10(lines 10 13) no Hoare annotation was computed. [2021-10-11 00:29:45,351 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 00:29:45,351 INFO L262 CegarLoopResult]: For program point L10-3(lines 10 13) no Hoare annotation was computed. [2021-10-11 00:29:45,352 INFO L265 CegarLoopResult]: At program point L39(lines 17 40) the Hoare annotation is: true [2021-10-11 00:29:45,352 INFO L262 CegarLoopResult]: For program point L6(lines 6 8) no Hoare annotation was computed. [2021-10-11 00:29:45,352 INFO L265 CegarLoopResult]: At program point L10-5(lines 9 15) the Hoare annotation is: true [2021-10-11 00:29:45,361 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 00:29:45,364 INFO L168 Benchmark]: Toolchain (without parser) took 7423.01 ms. Allocated memory was 54.5 MB in the beginning and 92.3 MB in the end (delta: 37.7 MB). Free memory was 31.9 MB in the beginning and 73.1 MB in the end (delta: -41.2 MB). Peak memory consumption was 20.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:29:45,365 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 54.5 MB. Free memory was 35.7 MB in the beginning and 35.7 MB in the end (delta: 37.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:29:45,366 INFO L168 Benchmark]: CACSL2BoogieTranslator took 313.92 ms. Allocated memory is still 54.5 MB. Free memory was 31.7 MB in the beginning and 35.1 MB in the end (delta: -3.4 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:29:45,367 INFO L168 Benchmark]: Boogie Procedure Inliner took 83.72 ms. Allocated memory was 54.5 MB in the beginning and 75.5 MB in the end (delta: 21.0 MB). Free memory was 35.1 MB in the beginning and 59.6 MB in the end (delta: -24.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:29:45,368 INFO L168 Benchmark]: Boogie Preprocessor took 43.95 ms. Allocated memory is still 75.5 MB. Free memory was 59.5 MB in the beginning and 58.4 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:29:45,369 INFO L168 Benchmark]: RCFGBuilder took 648.67 ms. Allocated memory is still 75.5 MB. Free memory was 58.4 MB in the beginning and 46.0 MB in the end (delta: 12.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:29:45,370 INFO L168 Benchmark]: TraceAbstraction took 6322.52 ms. Allocated memory was 75.5 MB in the beginning and 92.3 MB in the end (delta: 16.8 MB). Free memory was 45.5 MB in the beginning and 73.1 MB in the end (delta: -27.7 MB). Peak memory consumption was 14.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:29:45,374 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 54.5 MB. Free memory was 35.7 MB in the beginning and 35.7 MB in the end (delta: 37.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 313.92 ms. Allocated memory is still 54.5 MB. Free memory was 31.7 MB in the beginning and 35.1 MB in the end (delta: -3.4 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 83.72 ms. Allocated memory was 54.5 MB in the beginning and 75.5 MB in the end (delta: 21.0 MB). Free memory was 35.1 MB in the beginning and 59.6 MB in the end (delta: -24.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 43.95 ms. Allocated memory is still 75.5 MB. Free memory was 59.5 MB in the beginning and 58.4 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 648.67 ms. Allocated memory is still 75.5 MB. Free memory was 58.4 MB in the beginning and 46.0 MB in the end (delta: 12.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6322.52 ms. Allocated memory was 75.5 MB in the beginning and 92.3 MB in the end (delta: 16.8 MB). Free memory was 45.5 MB in the beginning and 73.1 MB in the end (delta: -27.7 MB). Peak memory consumption was 14.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 12]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 - ExceptionOrErrorResult: UnsupportedOperationException: translation of (bvneg (_ BitVec 64) (_ BitVec 64)) not yet implemented, please contact Matthias de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: translation of (bvneg (_ BitVec 64) (_ BitVec 64)) not yet implemented, please contact Matthias: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:211) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...