./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8 --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 88858f97a31c3235966ebf494d20d53d69d426d8 ............................................................................................................................................................................................................................................................................................................................................................................ 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_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8 --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 88858f97a31c3235966ebf494d20d53d69d426d8 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.2.1-dev-4e77c04 [2021-10-13 07:54:55,638 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:54:55,640 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:54:55,693 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:54:55,694 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:54:55,699 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:54:55,703 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:54:55,708 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:54:55,711 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:54:55,719 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:54:55,720 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:54:55,722 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:54:55,723 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:54:55,726 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:54:55,729 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:54:55,732 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:54:55,734 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:54:55,736 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:54:55,742 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:54:55,747 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:54:55,756 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:54:55,757 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:54:55,759 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:54:55,762 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:54:55,770 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:54:55,771 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:54:55,771 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:54:55,774 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:54:55,775 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:54:55,776 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:54:55,778 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:54:55,779 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:54:55,782 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:54:55,784 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:54:55,786 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:54:55,786 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:54:55,787 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:54:55,788 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:54:55,788 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:54:55,789 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:54:55,790 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:54:55,791 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-13 07:54:55,830 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:54:55,830 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:54:55,831 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:54:55,831 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:54:55,832 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:54:55,832 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:54:55,832 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 07:54:55,832 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:54:55,833 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:54:55,833 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 07:54:55,833 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 07:54:55,833 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:54:55,834 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 07:54:55,834 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 07:54:55,834 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 07:54:55,835 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:54:55,835 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 07:54:55,835 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 07:54:55,836 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 07:54:55,836 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:54:55,836 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:54:55,836 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:54:55,837 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:54:55,837 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:54:55,837 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 07:54:55,837 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:54:55,838 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:54:55,838 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:54:55,838 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:54:55,838 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:54:55,839 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:54:55,839 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:54:55,839 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:54:55,839 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:54:55,840 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 07:54:55,840 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 07:54:55,840 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:54:55,840 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:54:55,841 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:54:55,841 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 88858f97a31c3235966ebf494d20d53d69d426d8 [2021-10-13 07:54:56,183 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:54:56,218 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:54:56,221 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:54:56,223 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:54:56,224 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:54:56,225 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound2.c [2021-10-13 07:54:56,309 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8/data/0183e0df0/29ee2ee01fb147bb852aa9dc19351f8d/FLAG3073eea34 [2021-10-13 07:54:56,833 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:54:56,836 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound2.c [2021-10-13 07:54:56,851 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8/data/0183e0df0/29ee2ee01fb147bb852aa9dc19351f8d/FLAG3073eea34 [2021-10-13 07:54:57,171 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8/data/0183e0df0/29ee2ee01fb147bb852aa9dc19351f8d [2021-10-13 07:54:57,173 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:54:57,175 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:54:57,177 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:54:57,177 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:54:57,184 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:54:57,185 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:54:57" (1/1) ... [2021-10-13 07:54:57,186 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4eb85db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:54:57, skipping insertion in model container [2021-10-13 07:54:57,187 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:54:57" (1/1) ... [2021-10-13 07:54:57,198 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:54:57,219 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:54:57,410 WARN L228 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_5ec9151b-0786-4a6d-8cd6-c1a206333897/sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound2.c[537,550] [2021-10-13 07:54:57,437 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:54:57,447 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 07:54:57,462 WARN L228 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_5ec9151b-0786-4a6d-8cd6-c1a206333897/sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound2.c[537,550] [2021-10-13 07:54:57,468 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:54:57,484 INFO L208 MainTranslator]: Completed translation [2021-10-13 07:54:57,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:54:57 WrapperNode [2021-10-13 07:54:57,485 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:54:57,486 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 07:54:57,487 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 07:54:57,487 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 07:54:57,496 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:54:57" (1/1) ... [2021-10-13 07:54:57,505 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:54:57" (1/1) ... [2021-10-13 07:54:57,529 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 07:54:57,530 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 07:54:57,530 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 07:54:57,530 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 07:54:57,539 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:54:57" (1/1) ... [2021-10-13 07:54:57,540 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:54:57" (1/1) ... [2021-10-13 07:54:57,542 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:54:57" (1/1) ... [2021-10-13 07:54:57,542 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:54:57" (1/1) ... [2021-10-13 07:54:57,547 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:54:57" (1/1) ... [2021-10-13 07:54:57,552 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:54:57" (1/1) ... [2021-10-13 07:54:57,553 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:54:57" (1/1) ... [2021-10-13 07:54:57,556 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 07:54:57,557 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 07:54:57,557 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 07:54:57,557 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 07:54:57,559 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:54:57" (1/1) ... [2021-10-13 07:54:57,585 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:54:57,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:54:57,619 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 07:54:57,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 07:54:57,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 07:54:57,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 07:54:57,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 07:54:57,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 07:54:58,112 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 07:54:58,112 INFO L299 CfgBuilder]: Removed 15 assume(true) statements. [2021-10-13 07:54:58,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:54:58 BoogieIcfgContainer [2021-10-13 07:54:58,116 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 07:54:58,118 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 07:54:58,118 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 07:54:58,123 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 07:54:58,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:54:57" (1/3) ... [2021-10-13 07:54:58,125 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8cdf903 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:54:58, skipping insertion in model container [2021-10-13 07:54:58,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:54:57" (2/3) ... [2021-10-13 07:54:58,126 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8cdf903 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:54:58, skipping insertion in model container [2021-10-13 07:54:58,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:54:58" (3/3) ... [2021-10-13 07:54:58,128 INFO L111 eAbstractionObserver]: Analyzing ICFG prodbin-ll_valuebound2.c [2021-10-13 07:54:58,134 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 07:54:58,135 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-10-13 07:54:58,194 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 07:54:58,218 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 07:54:58,218 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-13 07:54:58,252 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:54:58,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-13 07:54:58,259 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:54:58,260 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-13 07:54:58,262 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:54:58,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:54:58,295 INFO L82 PathProgramCache]: Analyzing trace with hash 3457839, now seen corresponding path program 1 times [2021-10-13 07:54:58,309 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:54:58,311 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134837463] [2021-10-13 07:54:58,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:54:58,314 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:54:58,488 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-13 07:54:58,489 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [11354593] [2021-10-13 07:54:58,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:54:58,490 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:54:58,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:54:58,493 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 07:54:58,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-13 07:54:58,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:54:58,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-13 07:54:58,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:54:58,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:54:58,870 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:54:58,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:54:58,943 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:54:58,943 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134837463] [2021-10-13 07:54:58,944 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-13 07:54:58,944 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [11354593] [2021-10-13 07:54:58,945 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [11354593] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:54:58,945 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:54:58,946 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-13 07:54:58,948 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673741616] [2021-10-13 07:54:58,953 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 07:54:58,954 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:54:58,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 07:54:58,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:54:58,973 INFO L87 Difference]: Start difference. First operand has 12 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:54:59,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:54:59,045 INFO L93 Difference]: Finished difference Result 33 states and 43 transitions. [2021-10-13 07:54:59,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 07:54:59,047 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-10-13 07:54:59,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:54:59,057 INFO L225 Difference]: With dead ends: 33 [2021-10-13 07:54:59,057 INFO L226 Difference]: Without dead ends: 18 [2021-10-13 07:54:59,060 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 53.4ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:54:59,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-10-13 07:54:59,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 12. [2021-10-13 07:54:59,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:54:59,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2021-10-13 07:54:59,091 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 4 [2021-10-13 07:54:59,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:54:59,091 INFO L470 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2021-10-13 07:54:59,091 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:54:59,091 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2021-10-13 07:54:59,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-13 07:54:59,092 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:54:59,092 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2021-10-13 07:54:59,118 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-10-13 07:54:59,293 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-10-13 07:54:59,294 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:54:59,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:54:59,296 INFO L82 PathProgramCache]: Analyzing trace with hash -60564635, now seen corresponding path program 1 times [2021-10-13 07:54:59,296 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:54:59,296 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763937482] [2021-10-13 07:54:59,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:54:59,297 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:54:59,318 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-13 07:54:59,318 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [37037546] [2021-10-13 07:54:59,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:54:59,319 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:54:59,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:54:59,320 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 07:54:59,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-13 07:54:59,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:54:59,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-13 07:54:59,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:55:00,269 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:55:00,270 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:55:05,545 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:55:05,546 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:55:05,546 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763937482] [2021-10-13 07:55:05,546 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-13 07:55:05,546 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [37037546] [2021-10-13 07:55:05,547 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [37037546] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:55:05,547 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [297498149] [2021-10-13 07:55:05,573 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2021-10-13 07:55:05,574 INFO L166 IcfgInterpreter]: Building call graph [2021-10-13 07:55:05,579 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-13 07:55:05,585 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-13 07:55:05,586 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-13 07:55:05,617 INFO L180 QuantifierPusher]: treesize reduction 16, result has 91.0 percent of original size [2021-10-13 07:55:05,619 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:55:05,620 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:55:05,621 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-13 07:55:05,622 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:55:05,624 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:55:05,625 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-13 07:55:05,628 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 163 [2021-10-13 07:55:05,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:55:05,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:55:05,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:55:05,683 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-10-13 07:55:05,684 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:55:05,685 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-13 07:55:05,686 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:55:05,686 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-13 07:55:05,687 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-13 07:55:05,702 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-13 07:55:05,703 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:55:05,703 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:55:05,704 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:55:05,706 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:55:05,706 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-13 07:55:05,708 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:55:05,822 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:55:05,825 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size [2021-10-13 07:55:05,827 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 150 [2021-10-13 07:55:05,828 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-13 07:55:05,829 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:302, output treesize:150 [2021-10-13 07:55:05,866 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-13 07:55:06,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:55:06,047 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: No corresponding IProgramVar for |v_#valid_22| at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:97) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:83) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.constructTermVarsProc(BasicPredicateFactory.java:92) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.newPredicate(BasicPredicateFactory.java:81) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.predicate(SymbolicTools.java:174) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.post(SymbolicTools.java:116) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretInternal(DagInterpreter.java:227) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:209) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:608) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:53) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:392) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) 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) [2021-10-13 07:55:06,050 INFO L168 Benchmark]: Toolchain (without parser) took 8874.91 ms. Allocated memory was 79.7 MB in the beginning and 144.7 MB in the end (delta: 65.0 MB). Free memory was 43.3 MB in the beginning and 117.6 MB in the end (delta: -74.4 MB). Peak memory consumption was 42.7 MB. Max. memory is 16.1 GB. [2021-10-13 07:55:06,051 INFO L168 Benchmark]: CDTParser took 1.13 ms. Allocated memory is still 79.7 MB. Free memory is still 59.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:55:06,051 INFO L168 Benchmark]: CACSL2BoogieTranslator took 308.51 ms. Allocated memory was 79.7 MB in the beginning and 119.5 MB in the end (delta: 39.8 MB). Free memory was 43.0 MB in the beginning and 96.2 MB in the end (delta: -53.1 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. [2021-10-13 07:55:06,052 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.54 ms. Allocated memory is still 119.5 MB. Free memory was 96.2 MB in the beginning and 94.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:55:06,052 INFO L168 Benchmark]: Boogie Preprocessor took 26.57 ms. Allocated memory is still 119.5 MB. Free memory was 94.5 MB in the beginning and 93.5 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:55:06,052 INFO L168 Benchmark]: RCFGBuilder took 558.88 ms. Allocated memory is still 119.5 MB. Free memory was 93.5 MB in the beginning and 77.5 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-13 07:55:06,053 INFO L168 Benchmark]: TraceAbstraction took 7931.10 ms. Allocated memory was 119.5 MB in the beginning and 144.7 MB in the end (delta: 25.2 MB). Free memory was 76.9 MB in the beginning and 117.6 MB in the end (delta: -40.7 MB). Peak memory consumption was 39.5 MB. Max. memory is 16.1 GB. [2021-10-13 07:55:06,056 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.13 ms. Allocated memory is still 79.7 MB. Free memory is still 59.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 308.51 ms. Allocated memory was 79.7 MB in the beginning and 119.5 MB in the end (delta: 39.8 MB). Free memory was 43.0 MB in the beginning and 96.2 MB in the end (delta: -53.1 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.54 ms. Allocated memory is still 119.5 MB. Free memory was 96.2 MB in the beginning and 94.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.57 ms. Allocated memory is still 119.5 MB. Free memory was 94.5 MB in the beginning and 93.5 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 558.88 ms. Allocated memory is still 119.5 MB. Free memory was 93.5 MB in the beginning and 77.5 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 7931.10 ms. Allocated memory was 119.5 MB in the beginning and 144.7 MB in the end (delta: 25.2 MB). Free memory was 76.9 MB in the beginning and 117.6 MB in the end (delta: -40.7 MB). Peak memory consumption was 39.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: No corresponding IProgramVar for |v_#valid_22| de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: No corresponding IProgramVar for |v_#valid_22|: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:97) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-10-13 07:55:06,074 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 07:55:08,855 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:55:08,858 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:55:08,910 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:55:08,911 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:55:08,916 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:55:08,923 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:55:08,933 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:55:08,938 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:55:08,947 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:55:08,948 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:55:08,949 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:55:08,950 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:55:08,951 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:55:08,953 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:55:08,955 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:55:08,957 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:55:08,958 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:55:08,961 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:55:08,964 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:55:08,967 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:55:08,968 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:55:08,972 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:55:08,978 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:55:08,984 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:55:08,994 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:55:08,994 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:55:08,996 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:55:08,997 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:55:08,999 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:55:09,001 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:55:09,003 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:55:09,005 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:55:09,007 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:55:09,009 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:55:09,010 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:55:09,023 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:55:09,023 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:55:09,023 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:55:09,025 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:55:09,026 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:55:09,027 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-13 07:55:09,087 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:55:09,089 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:55:09,091 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:55:09,092 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:55:09,092 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:55:09,092 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:55:09,093 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:55:09,093 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:55:09,093 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:55:09,095 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:55:09,097 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 07:55:09,097 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 07:55:09,097 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:55:09,098 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:55:09,098 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:55:09,098 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:55:09,098 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:55:09,099 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 07:55:09,099 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 07:55:09,099 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 07:55:09,100 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:55:09,100 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:55:09,100 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:55:09,101 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:55:09,101 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 07:55:09,101 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:55:09,101 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:55:09,102 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:55:09,102 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:55:09,102 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:55:09,103 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-13 07:55:09,103 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 07:55:09,103 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:55:09,103 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:55:09,104 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:55:09,104 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_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 88858f97a31c3235966ebf494d20d53d69d426d8 [2021-10-13 07:55:09,538 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:55:09,572 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:55:09,575 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:55:09,576 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:55:09,577 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:55:09,578 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound2.c [2021-10-13 07:55:09,666 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8/data/2c00ce6b7/62b5983775c140249de4c7bf6ece8725/FLAG337d7d4af [2021-10-13 07:55:10,379 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:55:10,381 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound2.c [2021-10-13 07:55:10,405 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8/data/2c00ce6b7/62b5983775c140249de4c7bf6ece8725/FLAG337d7d4af [2021-10-13 07:55:10,721 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8/data/2c00ce6b7/62b5983775c140249de4c7bf6ece8725 [2021-10-13 07:55:10,734 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:55:10,735 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:55:10,738 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:55:10,738 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:55:10,743 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:55:10,745 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:55:10" (1/1) ... [2021-10-13 07:55:10,746 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@575442c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:55:10, skipping insertion in model container [2021-10-13 07:55:10,747 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:55:10" (1/1) ... [2021-10-13 07:55:10,757 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:55:10,777 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:55:11,003 WARN L228 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_5ec9151b-0786-4a6d-8cd6-c1a206333897/sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound2.c[537,550] [2021-10-13 07:55:11,035 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:55:11,054 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 07:55:11,070 WARN L228 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_5ec9151b-0786-4a6d-8cd6-c1a206333897/sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound2.c[537,550] [2021-10-13 07:55:11,079 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:55:11,095 INFO L208 MainTranslator]: Completed translation [2021-10-13 07:55:11,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:55:11 WrapperNode [2021-10-13 07:55:11,096 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:55:11,097 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 07:55:11,097 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 07:55:11,098 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 07:55:11,135 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:55:11" (1/1) ... [2021-10-13 07:55:11,166 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:55:11" (1/1) ... [2021-10-13 07:55:11,204 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 07:55:11,206 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 07:55:11,206 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 07:55:11,206 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 07:55:11,214 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:55:11" (1/1) ... [2021-10-13 07:55:11,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:55:11" (1/1) ... [2021-10-13 07:55:11,218 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:55:11" (1/1) ... [2021-10-13 07:55:11,218 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:55:11" (1/1) ... [2021-10-13 07:55:11,224 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:55:11" (1/1) ... [2021-10-13 07:55:11,229 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:55:11" (1/1) ... [2021-10-13 07:55:11,230 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:55:11" (1/1) ... [2021-10-13 07:55:11,233 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 07:55:11,234 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 07:55:11,235 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 07:55:11,235 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 07:55:11,236 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:55:11" (1/1) ... [2021-10-13 07:55:11,243 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:55:11,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:55:11,272 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 07:55:11,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 07:55:11,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-13 07:55:11,323 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 07:55:11,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 07:55:11,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 07:55:12,080 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 07:55:12,080 INFO L299 CfgBuilder]: Removed 15 assume(true) statements. [2021-10-13 07:55:12,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:55:12 BoogieIcfgContainer [2021-10-13 07:55:12,083 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 07:55:12,085 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 07:55:12,085 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 07:55:12,088 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 07:55:12,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:55:10" (1/3) ... [2021-10-13 07:55:12,090 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@398c2967 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:55:12, skipping insertion in model container [2021-10-13 07:55:12,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:55:11" (2/3) ... [2021-10-13 07:55:12,090 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@398c2967 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:55:12, skipping insertion in model container [2021-10-13 07:55:12,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:55:12" (3/3) ... [2021-10-13 07:55:12,092 INFO L111 eAbstractionObserver]: Analyzing ICFG prodbin-ll_valuebound2.c [2021-10-13 07:55:12,097 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 07:55:12,098 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-10-13 07:55:12,145 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 07:55:12,152 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 07:55:12,153 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-13 07:55:12,166 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 20 states have (on average 1.55) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:55:12,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-13 07:55:12,171 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:55:12,172 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:55:12,173 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:55:12,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:55:12,179 INFO L82 PathProgramCache]: Analyzing trace with hash 330581779, now seen corresponding path program 1 times [2021-10-13 07:55:12,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:55:12,191 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [706507725] [2021-10-13 07:55:12,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:55:12,192 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:55:12,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:55:12,198 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:55:12,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 07:55:12,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:55:12,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-13 07:55:12,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:55:12,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:55:12,453 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:55:12,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:55:12,551 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:55:12,552 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [706507725] [2021-10-13 07:55:12,552 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [706507725] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:55:12,553 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:55:12,553 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-13 07:55:12,560 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252326559] [2021-10-13 07:55:12,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-13 07:55:12,566 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:55:12,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-13 07:55:12,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 07:55:12,586 INFO L87 Difference]: Start difference. First operand has 23 states, 20 states have (on average 1.55) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:55:12,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:55:12,602 INFO L93 Difference]: Finished difference Result 43 states and 58 transitions. [2021-10-13 07:55:12,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 07:55:12,603 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-13 07:55:12,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:55:12,612 INFO L225 Difference]: With dead ends: 43 [2021-10-13 07:55:12,612 INFO L226 Difference]: Without dead ends: 19 [2021-10-13 07:55:12,615 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 07:55:12,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-10-13 07:55:12,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-10-13 07:55:12,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 18 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:55:12,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2021-10-13 07:55:12,648 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 11 [2021-10-13 07:55:12,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:55:12,649 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2021-10-13 07:55:12,650 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:55:12,650 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2021-10-13 07:55:12,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-13 07:55:12,651 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:55:12,651 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:55:12,673 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-13 07:55:12,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:55:12,873 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:55:12,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:55:12,874 INFO L82 PathProgramCache]: Analyzing trace with hash -1507472743, now seen corresponding path program 1 times [2021-10-13 07:55:12,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:55:12,875 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1261215745] [2021-10-13 07:55:12,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:55:12,876 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:55:12,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:55:12,877 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:55:12,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-13 07:55:13,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:55:13,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-13 07:55:13,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:55:14,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:55:14,133 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:55:17,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:55:17,113 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:55:17,114 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1261215745] [2021-10-13 07:55:17,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1261215745] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:55:17,115 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:55:17,115 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 4] imperfect sequences [] total 12 [2021-10-13 07:55:17,116 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387988106] [2021-10-13 07:55:17,118 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-13 07:55:17,119 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:55:17,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-13 07:55:17,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-10-13 07:55:17,123 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand has 12 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:55:24,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:55:24,415 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2021-10-13 07:55:24,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-13 07:55:24,426 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-13 07:55:24,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:55:24,427 INFO L225 Difference]: With dead ends: 32 [2021-10-13 07:55:24,427 INFO L226 Difference]: Without dead ends: 26 [2021-10-13 07:55:24,429 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 8003.5ms TimeCoverageRelationStatistics Valid=127, Invalid=253, Unknown=0, NotChecked=0, Total=380 [2021-10-13 07:55:24,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-10-13 07:55:24,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 22. [2021-10-13 07:55:24,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 20 states have (on average 1.15) internal successors, (23), 21 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:55:24,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2021-10-13 07:55:24,435 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 11 [2021-10-13 07:55:24,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:55:24,436 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2021-10-13 07:55:24,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:55:24,436 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2021-10-13 07:55:24,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-13 07:55:24,437 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:55:24,438 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:55:24,466 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-10-13 07:55:24,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:55:24,653 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:55:24,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:55:24,654 INFO L82 PathProgramCache]: Analyzing trace with hash 1030171456, now seen corresponding path program 1 times [2021-10-13 07:55:24,654 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:55:24,655 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [548143282] [2021-10-13 07:55:24,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:55:24,655 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:55:24,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:55:24,656 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:55:24,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-13 07:55:24,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:55:24,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-13 07:55:24,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:55:28,841 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:55:28,841 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:56:08,327 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:56:08,328 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:56:08,328 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [548143282] [2021-10-13 07:56:08,328 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [548143282] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:56:08,329 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [25871299] [2021-10-13 07:56:08,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:56:08,329 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 07:56:08,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 07:56:08,338 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 07:56:08,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2021-10-13 07:56:08,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:56:08,839 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-13 07:56:08,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:56:15,697 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:56:15,698 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:57:26,379 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse2 ((_ sign_extend 32) c_ULTIMATE.start_main_~b~0)) (.cse0 ((_ sign_extend 32) (_ bv2 32))) (.cse1 ((_ sign_extend 32) (_ bv1 32)))) (or (let ((.cse3 ((_ sign_extend 32) c_ULTIMATE.start_main_~a~0))) (= (bvadd ((_ sign_extend 32) (_ bv0 32)) (bvmul .cse0 (bvsdiv (bvadd (bvneg .cse1) .cse2) .cse0) .cse3) .cse3) (bvmul .cse2 .cse3))) (not (= (bvsrem .cse2 .cse0) .cse1)))) is different from true [2021-10-13 07:57:47,325 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse2 ((_ sign_extend 32) c_ULTIMATE.start_main_~b~0)) (.cse0 ((_ sign_extend 32) (_ bv2 32))) (.cse1 ((_ sign_extend 32) (_ bv1 32)))) (or (let ((.cse3 ((_ sign_extend 32) c_ULTIMATE.start_main_~a~0))) (= (bvadd ((_ sign_extend 32) (_ bv0 32)) (bvmul .cse0 (bvsdiv (bvadd (bvneg .cse1) .cse2) .cse0) .cse3) .cse3) (bvmul .cse2 .cse3))) (= c_ULTIMATE.start_assume_abort_if_not_~cond (_ bv0 32)) (not (= (bvsrem .cse2 .cse0) .cse1)))) is different from true [2021-10-13 07:57:49,589 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 1 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:57:49,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [25871299] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:57:49,590 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [717061750] [2021-10-13 07:57:49,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:57:49,591 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:57:49,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:57:49,607 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 07:57:49,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-13 07:57:50,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:57:50,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-13 07:57:50,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:57:56,565 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:57:56,565 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:58:29,114 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 1 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:58:29,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [717061750] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:58:29,114 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-13 07:58:29,115 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 10, 8, 10, 8] total 22 [2021-10-13 07:58:29,116 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321312504] [2021-10-13 07:58:29,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-10-13 07:58:29,117 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:58:29,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-10-13 07:58:29,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=287, Unknown=12, NotChecked=74, Total=462 [2021-10-13 07:58:29,119 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand has 22 states, 22 states have (on average 2.0) internal successors, (44), 22 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:20,049 WARN L207 SmtUtils]: Spent 13.69 s on a formula simplification that was a NOOP. DAG size: 39 [2021-10-13 07:59:47,452 WARN L207 SmtUtils]: Spent 15.69 s on a formula simplification. DAG size of input: 31 DAG size of output: 22 [2021-10-13 08:01:13,875 WARN L207 SmtUtils]: Spent 58.25 s on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2021-10-13 08:02:12,061 WARN L207 SmtUtils]: Spent 12.69 s on a formula simplification that was a NOOP. DAG size: 37 [2021-10-13 08:02:32,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:02:32,572 INFO L93 Difference]: Finished difference Result 53 states and 63 transitions. [2021-10-13 08:02:32,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-13 08:02:32,592 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.0) internal successors, (44), 22 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-13 08:02:32,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:02:32,593 INFO L225 Difference]: With dead ends: 53 [2021-10-13 08:02:32,594 INFO L226 Difference]: Without dead ends: 30 [2021-10-13 08:02:32,595 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 67 SyntacticMatches, 6 SemanticMatches, 33 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 289689.9ms TimeCoverageRelationStatistics Valid=271, Invalid=775, Unknown=18, NotChecked=126, Total=1190 [2021-10-13 08:02:32,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-10-13 08:02:32,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2021-10-13 08:02:32,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 26 states have (on average 1.1153846153846154) internal successors, (29), 27 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:02:32,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2021-10-13 08:02:32,602 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 16 [2021-10-13 08:02:32,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:02:32,603 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2021-10-13 08:02:32,603 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.0) internal successors, (44), 22 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:02:32,603 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2021-10-13 08:02:32,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-13 08:02:32,604 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:02:32,604 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:02:32,615 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-13 08:02:32,807 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2021-10-13 08:02:33,038 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-10-13 08:02:33,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 08:02:33,205 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:02:33,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:02:33,206 INFO L82 PathProgramCache]: Analyzing trace with hash -576050119, now seen corresponding path program 1 times [2021-10-13 08:02:33,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:02:33,206 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1687246793] [2021-10-13 08:02:33,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:02:33,206 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:02:33,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:02:33,207 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:02:33,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-13 08:02:33,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:02:33,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-13 08:02:33,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:02:39,010 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:02:39,010 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:02:56,770 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:02:56,770 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:02:56,770 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1687246793] [2021-10-13 08:02:56,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1687246793] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:02:56,770 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:02:56,771 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 14 [2021-10-13 08:02:56,771 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568291026] [2021-10-13 08:02:56,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-13 08:02:56,772 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:02:56,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-13 08:02:56,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2021-10-13 08:02:56,773 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand has 14 states, 14 states have (on average 2.5) internal successors, (35), 14 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:03:02,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:03:02,350 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2021-10-13 08:03:02,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-13 08:03:02,378 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.5) internal successors, (35), 14 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-10-13 08:03:02,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:03:02,378 INFO L225 Difference]: With dead ends: 28 [2021-10-13 08:03:02,378 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 08:03:02,379 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 17551.0ms TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2021-10-13 08:03:02,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 08:03:02,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 08:03:02,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:03:02,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 08:03:02,380 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2021-10-13 08:03:02,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:03:02,380 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 08:03:02,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.5) internal successors, (35), 14 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:03:02,381 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 08:03:02,381 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 08:03:02,384 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 08:03:02,384 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 08:03:02,403 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-13 08:03:02,585 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:03:02,587 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-13 08:03:02,589 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:03:02,722 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:03:02,773 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:03:02,774 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:03:37,408 WARN L207 SmtUtils]: Spent 34.63 s on a formula simplification. DAG size of input: 73 DAG size of output: 53 [2021-10-13 08:04:00,824 WARN L207 SmtUtils]: Spent 23.41 s on a formula simplification. DAG size of input: 76 DAG size of output: 56 [2021-10-13 08:04:00,829 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 15) no Hoare annotation was computed. [2021-10-13 08:04:00,829 INFO L860 garLoopResultBuilder]: At program point L48(lines 20 49) the Hoare annotation is: true [2021-10-13 08:04:00,829 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-13 08:04:00,829 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-13 08:04:00,830 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-13 08:04:00,830 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 15) no Hoare annotation was computed. [2021-10-13 08:04:00,830 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-13 08:04:00,830 INFO L857 garLoopResultBuilder]: For program point L13(lines 13 16) no Hoare annotation was computed. [2021-10-13 08:04:00,831 INFO L853 garLoopResultBuilder]: At program point L13-2(lines 36 37) the Hoare annotation is: (let ((.cse0 (bvsge ULTIMATE.start_main_~a~0 (_ bv0 32))) (.cse1 (bvsle ULTIMATE.start_main_~b~0 (_ bv2 32))) (.cse2 (= ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32))) (.cse3 (bvsle ULTIMATE.start_main_~a~0 (_ bv2 32))) (.cse6 (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32))) (.cse7 (bvsge ULTIMATE.start_main_~b~0 (_ bv1 32)))) (or (and .cse0 .cse1 .cse2 .cse3 (exists ((ULTIMATE.start_main_~b~0 (_ BitVec 32))) (let ((.cse4 ((_ sign_extend 32) ULTIMATE.start_main_~b~0)) (.cse5 ((_ sign_extend 32) (_ bv2 32)))) (and (bvsle ULTIMATE.start_main_~b~0 (_ bv2 32)) (= (bvsdiv .cse4 .cse5) ULTIMATE.start_main_~y~0) (not (= ((_ sign_extend 32) (_ bv0 32)) .cse4)) (not (= (bvsrem .cse4 .cse5) ((_ sign_extend 32) (_ bv1 32)))) (bvsge ULTIMATE.start_main_~b~0 (_ bv0 32))))) .cse6 (forall ((v_ULTIMATE.start_main_~x~0_12 (_ BitVec 64))) (= (bvmul ((_ sign_extend 32) ULTIMATE.start_main_~b~0) ((_ sign_extend 32) ULTIMATE.start_main_~a~0)) (bvadd (bvmul v_ULTIMATE.start_main_~x~0_12 (bvsdiv (bvadd (bvneg ((_ sign_extend 32) (_ bv1 32))) ULTIMATE.start_main_~y~0) ((_ sign_extend 32) (_ bv2 32)))) ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~z~0))) .cse7) (and (= ULTIMATE.start_main_~y~0 ((_ sign_extend 32) ULTIMATE.start_main_~b~0)) .cse0 .cse2 .cse3 (= ((_ sign_extend 32) ULTIMATE.start_main_~a~0) ULTIMATE.start_main_~x~0) .cse6 (= ((_ sign_extend 32) (_ bv0 32)) ULTIMATE.start_main_~z~0) (exists ((ULTIMATE.start_main_~b~0 (_ BitVec 32))) (and (= ULTIMATE.start_main_~y~0 ((_ sign_extend 32) ULTIMATE.start_main_~b~0)) (bvsle ULTIMATE.start_main_~b~0 (_ bv2 32)) (bvsge ULTIMATE.start_main_~b~0 (_ bv0 32)))) .cse7) (and .cse0 .cse1 .cse2 .cse3 .cse6 (forall ((ULTIMATE.start_main_~x~0 (_ BitVec 64))) (= (bvmul ((_ sign_extend 32) ULTIMATE.start_main_~b~0) ((_ sign_extend 32) ULTIMATE.start_main_~a~0)) (bvadd (bvmul ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~z~0))) .cse7))) [2021-10-13 08:04:00,831 INFO L857 garLoopResultBuilder]: For program point L13-3(lines 13 16) no Hoare annotation was computed. [2021-10-13 08:04:00,831 INFO L857 garLoopResultBuilder]: For program point L9(lines 9 11) no Hoare annotation was computed. [2021-10-13 08:04:00,831 INFO L857 garLoopResultBuilder]: For program point L9-1(lines 9 11) no Hoare annotation was computed. [2021-10-13 08:04:00,832 INFO L860 garLoopResultBuilder]: At program point L13-5(lines 12 18) the Hoare annotation is: true [2021-10-13 08:04:00,832 INFO L857 garLoopResultBuilder]: For program point L9-2(lines 9 11) no Hoare annotation was computed. [2021-10-13 08:04:00,832 INFO L853 garLoopResultBuilder]: At program point L34-2(lines 34 45) the Hoare annotation is: (let ((.cse0 (bvsge ULTIMATE.start_main_~a~0 (_ bv0 32))) (.cse1 (bvsle ULTIMATE.start_main_~b~0 (_ bv2 32))) (.cse2 (= ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32))) (.cse3 (not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))) (.cse4 (bvsle ULTIMATE.start_main_~a~0 (_ bv2 32))) (.cse5 (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32))) (.cse6 (bvsge ULTIMATE.start_main_~b~0 (_ bv1 32)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (forall ((ULTIMATE.start_main_~x~0 (_ BitVec 64))) (= (bvmul ((_ sign_extend 32) ULTIMATE.start_main_~b~0) ((_ sign_extend 32) ULTIMATE.start_main_~a~0)) (bvadd (bvmul ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~z~0))) .cse6) (and (= ULTIMATE.start_main_~y~0 ((_ sign_extend 32) ULTIMATE.start_main_~b~0)) .cse0 .cse2 .cse4 (= ((_ sign_extend 32) ULTIMATE.start_main_~a~0) ULTIMATE.start_main_~x~0) (= ((_ sign_extend 32) (_ bv0 32)) ULTIMATE.start_main_~z~0) (exists ((ULTIMATE.start_main_~b~0 (_ BitVec 32))) (and (= ULTIMATE.start_main_~y~0 ((_ sign_extend 32) ULTIMATE.start_main_~b~0)) (bvsle ULTIMATE.start_main_~b~0 (_ bv2 32)) (bvsge ULTIMATE.start_main_~b~0 (_ bv0 32)))) .cse6) (and .cse0 .cse1 .cse2 .cse3 .cse4 (exists ((ULTIMATE.start_main_~b~0 (_ BitVec 32))) (let ((.cse7 ((_ sign_extend 32) ULTIMATE.start_main_~b~0)) (.cse8 ((_ sign_extend 32) (_ bv2 32)))) (and (bvsle ULTIMATE.start_main_~b~0 (_ bv2 32)) (= (bvsdiv .cse7 .cse8) ULTIMATE.start_main_~y~0) (not (= ((_ sign_extend 32) (_ bv0 32)) .cse7)) (not (= (bvsrem .cse7 .cse8) ((_ sign_extend 32) (_ bv1 32)))) (bvsge ULTIMATE.start_main_~b~0 (_ bv0 32))))) .cse5 (forall ((v_ULTIMATE.start_main_~x~0_12 (_ BitVec 64))) (= (bvmul ((_ sign_extend 32) ULTIMATE.start_main_~b~0) ((_ sign_extend 32) ULTIMATE.start_main_~a~0)) (bvadd (bvmul v_ULTIMATE.start_main_~x~0_12 (bvsdiv (bvadd (bvneg ((_ sign_extend 32) (_ bv1 32))) ULTIMATE.start_main_~y~0) ((_ sign_extend 32) (_ bv2 32)))) ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~z~0))) .cse6))) [2021-10-13 08:04:00,833 INFO L857 garLoopResultBuilder]: For program point L34-3(lines 34 45) no Hoare annotation was computed. [2021-10-13 08:04:00,833 INFO L857 garLoopResultBuilder]: For program point L14(lines 14 15) no Hoare annotation was computed. [2021-10-13 08:04:00,833 INFO L857 garLoopResultBuilder]: For program point L14-1(lines 14 15) no Hoare annotation was computed. [2021-10-13 08:04:00,833 INFO L857 garLoopResultBuilder]: For program point L10(line 10) no Hoare annotation was computed. [2021-10-13 08:04:00,833 INFO L857 garLoopResultBuilder]: For program point L10-2(line 10) no Hoare annotation was computed. [2021-10-13 08:04:00,834 INFO L857 garLoopResultBuilder]: For program point L39(lines 39 42) no Hoare annotation was computed. [2021-10-13 08:04:00,834 INFO L857 garLoopResultBuilder]: For program point L10-4(line 10) no Hoare annotation was computed. [2021-10-13 08:04:00,834 INFO L857 garLoopResultBuilder]: For program point L39-2(lines 39 42) no Hoare annotation was computed. [2021-10-13 08:04:00,839 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 08:04:00,845 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.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:456) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:135) 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:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:139) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:452) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:192) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) 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) [2021-10-13 08:04:00,849 INFO L168 Benchmark]: Toolchain (without parser) took 530113.43 ms. Allocated memory was 69.2 MB in the beginning and 94.4 MB in the end (delta: 25.2 MB). Free memory was 53.9 MB in the beginning and 62.0 MB in the end (delta: -8.0 MB). Peak memory consumption was 56.1 MB. Max. memory is 16.1 GB. [2021-10-13 08:04:00,850 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 69.2 MB. Free memory was 50.5 MB in the beginning and 50.4 MB in the end (delta: 60.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 08:04:00,851 INFO L168 Benchmark]: CACSL2BoogieTranslator took 358.44 ms. Allocated memory is still 69.2 MB. Free memory was 53.8 MB in the beginning and 43.6 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 08:04:00,852 INFO L168 Benchmark]: Boogie Procedure Inliner took 107.55 ms. Allocated memory is still 69.2 MB. Free memory was 43.6 MB in the beginning and 53.1 MB in the end (delta: -9.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 08:04:00,852 INFO L168 Benchmark]: Boogie Preprocessor took 27.88 ms. Allocated memory is still 69.2 MB. Free memory was 53.1 MB in the beginning and 52.0 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 08:04:00,853 INFO L168 Benchmark]: RCFGBuilder took 848.62 ms. Allocated memory is still 69.2 MB. Free memory was 51.7 MB in the beginning and 41.8 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 08:04:00,854 INFO L168 Benchmark]: TraceAbstraction took 528763.47 ms. Allocated memory was 69.2 MB in the beginning and 94.4 MB in the end (delta: 25.2 MB). Free memory was 41.2 MB in the beginning and 62.0 MB in the end (delta: -20.7 MB). Peak memory consumption was 45.2 MB. Max. memory is 16.1 GB. [2021-10-13 08:04:00,857 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 69.2 MB. Free memory was 50.5 MB in the beginning and 50.4 MB in the end (delta: 60.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 358.44 ms. Allocated memory is still 69.2 MB. Free memory was 53.8 MB in the beginning and 43.6 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 107.55 ms. Allocated memory is still 69.2 MB. Free memory was 43.6 MB in the beginning and 53.1 MB in the end (delta: -9.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 27.88 ms. Allocated memory is still 69.2 MB. Free memory was 53.1 MB in the beginning and 52.0 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 848.62 ms. Allocated memory is still 69.2 MB. Free memory was 51.7 MB in the beginning and 41.8 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 528763.47 ms. Allocated memory was 69.2 MB in the beginning and 94.4 MB in the end (delta: 25.2 MB). Free memory was 41.2 MB in the beginning and 62.0 MB in the end (delta: -20.7 MB). Peak memory consumption was 45.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 15]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 15]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 528696.3ms, OverallIterations: 4, TraceHistogramMax: 3, EmptinessCheckTime: 11.2ms, AutomataDifference: 256442.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 58242.9ms, InitialAbstractionConstructionTime: 9.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 47 SDtfs, 238 SDslu, 105 SDs, 0 SdLazy, 277 SolverSat, 148 SolverUnsat, 7 SolverUnknown, 0 SolverNotchecked, 52192.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 200 GetRequests, 126 SyntacticMatches, 6 SemanticMatches, 68 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 323 ImplicationChecksByTransitivity, 315244.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=3, InterpolantAutomatonStates: 43, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 32.8ms AutomataMinimizationTime, 4 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 14 NumberOfFragments, 289 HoareAnnotationTreeSize, 4 FomulaSimplifications, 27 FormulaSimplificationTreeSizeReduction, 186.7ms HoareSimplificationTime, 4 FomulaSimplificationsInter, 317 FormulaSimplificationTreeSizeReductionInter, 58050.3ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 80.4ms SsaConstructionTime, 1130.9ms SatisfiabilityAnalysisTime, 210847.0ms InterpolantComputationTime, 91 NumberOfCodeBlocks, 91 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 170 ConstructedInterpolants, 19 QuantifiedInterpolants, 2408 SizeOfPredicates, 49 NumberOfNonLiveVariables, 275 ConjunctsInSsa, 75 ConjunctsInUnsatCore, 12 InterpolantComputations, 6 PerfectInterpolantSequences, 19/30 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - 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. [2021-10-13 08:04:01,000 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec9151b-0786-4a6d-8cd6-c1a206333897/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...