./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs --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 231a10bb05ed6dc00d2658e900a2b37af0aae558 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs --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 231a10bb05ed6dc00d2658e900a2b37af0aae558 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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-5709675 [2021-10-16 02:40:13,709 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:40:13,713 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:40:13,760 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:40:13,760 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:40:13,762 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:40:13,764 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:40:13,766 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:40:13,769 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:40:13,770 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:40:13,772 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:40:13,774 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:40:13,775 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:40:13,776 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:40:13,796 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:40:13,797 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:40:13,799 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:40:13,800 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:40:13,802 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:40:13,805 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:40:13,807 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:40:13,808 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:40:13,810 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:40:13,811 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:40:13,815 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:40:13,815 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:40:13,816 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:40:13,817 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:40:13,818 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:40:13,827 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:40:13,827 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:40:13,828 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:40:13,829 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:40:13,830 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:40:13,832 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:40:13,832 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:40:13,833 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:40:13,834 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:40:13,834 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:40:13,835 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:40:13,836 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:40:13,837 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-16 02:40:13,864 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:40:13,864 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:40:13,865 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:40:13,866 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:40:13,866 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:40:13,866 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:40:13,867 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 02:40:13,867 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:40:13,867 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:40:13,868 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 02:40:13,868 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 02:40:13,868 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:40:13,868 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 02:40:13,869 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 02:40:13,869 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 02:40:13,870 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:40:13,870 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:40:13,870 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 02:40:13,871 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:40:13,871 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:40:13,871 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:40:13,871 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:40:13,872 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:40:13,872 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:40:13,872 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:40:13,873 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:40:13,873 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:40:13,873 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:40:13,874 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:40:13,874 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:40:13,874 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:40:13,875 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:40:13,875 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:40:13,875 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:40:13,875 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 02:40:13,876 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 02:40:13,876 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:40:13,876 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:40:13,876 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:40:13,877 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_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 231a10bb05ed6dc00d2658e900a2b37af0aae558 [2021-10-16 02:40:14,121 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:40:14,143 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:40:14,146 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:40:14,147 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:40:14,148 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:40:14,149 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound2.c [2021-10-16 02:40:14,210 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/data/45acdb13e/8c6e853058d94a3ba2a4a6359f74de84/FLAG9dd5a7743 [2021-10-16 02:40:14,733 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:40:14,735 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound2.c [2021-10-16 02:40:14,748 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/data/45acdb13e/8c6e853058d94a3ba2a4a6359f74de84/FLAG9dd5a7743 [2021-10-16 02:40:15,099 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/data/45acdb13e/8c6e853058d94a3ba2a4a6359f74de84 [2021-10-16 02:40:15,111 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:40:15,115 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:40:15,122 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:40:15,122 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:40:15,135 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:40:15,136 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:40:15" (1/1) ... [2021-10-16 02:40:15,137 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dab20d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:40:15, skipping insertion in model container [2021-10-16 02:40:15,139 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:40:15" (1/1) ... [2021-10-16 02:40:15,148 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:40:15,172 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:40:15,307 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_480b0a95-06a8-40c8-9d31-71a9193dc09c/sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound2.c[576,589] [2021-10-16 02:40:15,323 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:40:15,333 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:40:15,346 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_480b0a95-06a8-40c8-9d31-71a9193dc09c/sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound2.c[576,589] [2021-10-16 02:40:15,354 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:40:15,368 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:40:15,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:40:15 WrapperNode [2021-10-16 02:40:15,369 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:40:15,371 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:40:15,371 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:40:15,371 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:40:15,379 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:40:15" (1/1) ... [2021-10-16 02:40:15,386 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:40:15" (1/1) ... [2021-10-16 02:40:15,410 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:40:15,411 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:40:15,412 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:40:15,412 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:40:15,420 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:40:15" (1/1) ... [2021-10-16 02:40:15,421 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:40:15" (1/1) ... [2021-10-16 02:40:15,423 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:40:15" (1/1) ... [2021-10-16 02:40:15,423 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:40:15" (1/1) ... [2021-10-16 02:40:15,428 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:40:15" (1/1) ... [2021-10-16 02:40:15,434 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:40:15" (1/1) ... [2021-10-16 02:40:15,436 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:40:15" (1/1) ... [2021-10-16 02:40:15,438 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:40:15,439 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:40:15,440 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:40:15,440 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:40:15,441 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:40:15" (1/1) ... [2021-10-16 02:40:15,448 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:40:15,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:40:15,477 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:40:15,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:40:15,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 02:40:15,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:40:15,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:40:15,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:40:15,907 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:40:15,908 INFO L299 CfgBuilder]: Removed 26 assume(true) statements. [2021-10-16 02:40:15,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:40:15 BoogieIcfgContainer [2021-10-16 02:40:15,911 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:40:15,912 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:40:15,913 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:40:15,916 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:40:15,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:40:15" (1/3) ... [2021-10-16 02:40:15,917 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d2315fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:40:15, skipping insertion in model container [2021-10-16 02:40:15,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:40:15" (2/3) ... [2021-10-16 02:40:15,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d2315fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:40:15, skipping insertion in model container [2021-10-16 02:40:15,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:40:15" (3/3) ... [2021-10-16 02:40:15,919 INFO L111 eAbstractionObserver]: Analyzing ICFG cohendiv-ll_valuebound2.c [2021-10-16 02:40:15,925 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:40:15,925 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2021-10-16 02:40:16,004 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:40:16,026 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 [2021-10-16 02:40:16,027 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-10-16 02:40:16,042 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 26 states have (on average 1.6923076923076923) internal successors, (44), 33 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) [2021-10-16 02:40:16,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-16 02:40:16,047 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:40:16,048 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-16 02:40:16,048 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-16 02:40:16,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:40:16,054 INFO L82 PathProgramCache]: Analyzing trace with hash 5453836, now seen corresponding path program 1 times [2021-10-16 02:40:16,064 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:40:16,065 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064927820] [2021-10-16 02:40:16,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:40:16,066 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:40:16,201 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-16 02:40:16,202 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [922614995] [2021-10-16 02:40:16,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:40:16,203 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:40:16,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:40:16,206 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:40:16,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-16 02:40:16,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:40:16,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-16 02:40:16,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:40:16,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:40:16,557 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:40:16,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:40:16,641 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:40:16,643 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064927820] [2021-10-16 02:40:16,643 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-16 02:40:16,646 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [922614995] [2021-10-16 02:40:16,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [922614995] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:40:16,648 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:40:16,648 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-16 02:40:16,654 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566001071] [2021-10-16 02:40:16,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-16 02:40:16,662 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:40:16,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-16 02:40:16,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-16 02:40:16,688 INFO L87 Difference]: Start difference. First operand has 34 states, 26 states have (on average 1.6923076923076923) internal successors, (44), 33 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) 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) [2021-10-16 02:40:16,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:40:16,823 INFO L93 Difference]: Finished difference Result 75 states and 100 transitions. [2021-10-16 02:40:16,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 02:40:16,825 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 [2021-10-16 02:40:16,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:40:16,836 INFO L225 Difference]: With dead ends: 75 [2021-10-16 02:40:16,836 INFO L226 Difference]: Without dead ends: 38 [2021-10-16 02:40:16,840 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 55.4ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-16 02:40:16,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-10-16 02:40:16,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 26. [2021-10-16 02:40:16,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 25 states have internal predecessors, (27), 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) [2021-10-16 02:40:16,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2021-10-16 02:40:16,882 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 4 [2021-10-16 02:40:16,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:40:16,883 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2021-10-16 02:40:16,883 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) [2021-10-16 02:40:16,883 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2021-10-16 02:40:16,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-16 02:40:16,884 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:40:16,884 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-16 02:40:16,916 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-16 02:40:17,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-10-16 02:40:17,100 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-16 02:40:17,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:40:17,101 INFO L82 PathProgramCache]: Analyzing trace with hash 946325295, now seen corresponding path program 1 times [2021-10-16 02:40:17,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:40:17,102 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300189424] [2021-10-16 02:40:17,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:40:17,102 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:40:17,121 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-16 02:40:17,122 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [925725089] [2021-10-16 02:40:17,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:40:17,122 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:40:17,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:40:17,123 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:40:17,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-16 02:40:17,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:40:17,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-16 02:40:17,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:40:17,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:40:17,290 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:40:17,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:40:17,329 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:40:17,329 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300189424] [2021-10-16 02:40:17,329 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-16 02:40:17,329 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [925725089] [2021-10-16 02:40:17,330 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [925725089] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:40:17,330 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:40:17,330 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-16 02:40:17,330 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445503624] [2021-10-16 02:40:17,332 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-16 02:40:17,332 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:40:17,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-16 02:40:17,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-16 02:40:17,333 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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) [2021-10-16 02:40:17,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:40:17,424 INFO L93 Difference]: Finished difference Result 52 states and 54 transitions. [2021-10-16 02:40:17,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:40:17,425 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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 6 [2021-10-16 02:40:17,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:40:17,428 INFO L225 Difference]: With dead ends: 52 [2021-10-16 02:40:17,428 INFO L226 Difference]: Without dead ends: 44 [2021-10-16 02:40:17,437 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 26.1ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-16 02:40:17,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-10-16 02:40:17,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 40. [2021-10-16 02:40:17,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 36 states have (on average 1.1944444444444444) internal successors, (43), 39 states have internal predecessors, (43), 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) [2021-10-16 02:40:17,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2021-10-16 02:40:17,456 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 43 transitions. Word has length 6 [2021-10-16 02:40:17,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:40:17,457 INFO L470 AbstractCegarLoop]: Abstraction has 40 states and 43 transitions. [2021-10-16 02:40:17,457 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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) [2021-10-16 02:40:17,457 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 43 transitions. [2021-10-16 02:40:17,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-16 02:40:17,459 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:40:17,459 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:40:17,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-16 02:40:17,675 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:40:17,676 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-16 02:40:17,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:40:17,676 INFO L82 PathProgramCache]: Analyzing trace with hash 1120146711, now seen corresponding path program 1 times [2021-10-16 02:40:17,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:40:17,677 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978023032] [2021-10-16 02:40:17,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:40:17,677 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:40:17,699 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-16 02:40:17,702 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1455124441] [2021-10-16 02:40:17,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:40:17,703 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:40:17,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:40:17,705 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:40:17,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-16 02:40:17,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:40:17,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-16 02:40:17,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:40:17,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:40:17,896 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:40:17,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:40:17,983 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:40:17,983 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978023032] [2021-10-16 02:40:17,983 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-16 02:40:17,984 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1455124441] [2021-10-16 02:40:17,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1455124441] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:40:17,984 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:40:17,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-10-16 02:40:17,986 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151826074] [2021-10-16 02:40:17,987 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 02:40:17,987 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:40:17,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 02:40:17,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-16 02:40:17,990 INFO L87 Difference]: Start difference. First operand 40 states and 43 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 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) [2021-10-16 02:40:18,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:40:18,089 INFO L93 Difference]: Finished difference Result 40 states and 43 transitions. [2021-10-16 02:40:18,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 02:40:18,090 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 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 13 [2021-10-16 02:40:18,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:40:18,093 INFO L225 Difference]: With dead ends: 40 [2021-10-16 02:40:18,093 INFO L226 Difference]: Without dead ends: 38 [2021-10-16 02:40:18,093 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 42.1ms TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-10-16 02:40:18,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-10-16 02:40:18,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2021-10-16 02:40:18,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 35 states have (on average 1.1428571428571428) internal successors, (40), 37 states have internal predecessors, (40), 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) [2021-10-16 02:40:18,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 40 transitions. [2021-10-16 02:40:18,113 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 40 transitions. Word has length 13 [2021-10-16 02:40:18,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:40:18,114 INFO L470 AbstractCegarLoop]: Abstraction has 38 states and 40 transitions. [2021-10-16 02:40:18,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 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) [2021-10-16 02:40:18,116 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 40 transitions. [2021-10-16 02:40:18,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-16 02:40:18,118 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:40:18,118 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:40:18,156 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-16 02:40:18,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:40:18,336 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-16 02:40:18,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:40:18,337 INFO L82 PathProgramCache]: Analyzing trace with hash 1053678152, now seen corresponding path program 1 times [2021-10-16 02:40:18,337 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:40:18,337 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154214859] [2021-10-16 02:40:18,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:40:18,337 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:40:18,354 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-16 02:40:18,354 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1852879773] [2021-10-16 02:40:18,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:40:18,355 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:40:18,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:40:18,356 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:40:18,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-16 02:40:18,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:40:18,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-16 02:40:18,445 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:40:18,695 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:40:18,695 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:40:18,849 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:40:18,849 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:40:18,849 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154214859] [2021-10-16 02:40:18,849 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-16 02:40:18,850 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1852879773] [2021-10-16 02:40:18,850 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1852879773] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:40:18,850 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1020628653] [2021-10-16 02:40:18,874 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2021-10-16 02:40:18,874 INFO L166 IcfgInterpreter]: Building call graph [2021-10-16 02:40:18,879 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-16 02:40:18,886 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-16 02:40:18,886 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-16 02:40:18,937 INFO L180 QuantifierPusher]: treesize reduction 16, result has 91.1 percent of original size [2021-10-16 02:40:18,939 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:40:18,940 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:40:18,940 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-16 02:40:18,944 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:40:18,945 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:40:18,946 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-16 02:40:18,949 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 166 [2021-10-16 02:40:18,983 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-16 02:40:18,984 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-16 02:40:18,985 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-16 02:40:18,986 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:40:18,987 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-16 02:40:18,987 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:40:18,988 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-16 02:40:18,988 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-16 02:40:18,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:40:18,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:40:19,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:40:19,066 INFO L354 Elim1Store]: treesize reduction 68, result has 13.9 percent of original size [2021-10-16 02:40:19,067 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 43 treesize of output 42 [2021-10-16 02:40:19,072 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:40:19,075 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-10-16 02:40:19,076 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:40:19,077 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-10-16 02:40:19,077 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-16 02:40:19,080 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:40:19,138 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:40:19,156 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.8 percent of original size [2021-10-16 02:40:19,165 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-10-16 02:40:19,167 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-16 02:40:19,168 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:308, output treesize:134 [2021-10-16 02:40:19,207 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-16 02:40:19,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:40:19,384 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: No corresponding IProgramVar for |v_#length_13| 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) [2021-10-16 02:40:19,390 INFO L168 Benchmark]: Toolchain (without parser) took 4273.27 ms. Allocated memory was 94.4 MB in the beginning and 132.1 MB in the end (delta: 37.7 MB). Free memory was 65.4 MB in the beginning and 51.0 MB in the end (delta: 14.4 MB). Peak memory consumption was 55.3 MB. Max. memory is 16.1 GB. [2021-10-16 02:40:19,390 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 94.4 MB. Free memory is still 62.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:40:19,391 INFO L168 Benchmark]: CACSL2BoogieTranslator took 247.67 ms. Allocated memory is still 94.4 MB. Free memory was 65.1 MB in the beginning and 55.3 MB in the end (delta: 9.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-16 02:40:19,391 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.13 ms. Allocated memory is still 94.4 MB. Free memory was 55.3 MB in the beginning and 53.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:40:19,392 INFO L168 Benchmark]: Boogie Preprocessor took 27.20 ms. Allocated memory is still 94.4 MB. Free memory was 53.6 MB in the beginning and 52.3 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:40:19,392 INFO L168 Benchmark]: RCFGBuilder took 471.33 ms. Allocated memory is still 94.4 MB. Free memory was 52.3 MB in the beginning and 36.9 MB in the end (delta: 15.4 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-16 02:40:19,393 INFO L168 Benchmark]: TraceAbstraction took 3474.79 ms. Allocated memory was 94.4 MB in the beginning and 132.1 MB in the end (delta: 37.7 MB). Free memory was 36.5 MB in the beginning and 51.0 MB in the end (delta: -14.6 MB). Peak memory consumption was 23.8 MB. Max. memory is 16.1 GB. [2021-10-16 02:40:19,397 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 94.4 MB. Free memory is still 62.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 247.67 ms. Allocated memory is still 94.4 MB. Free memory was 65.1 MB in the beginning and 55.3 MB in the end (delta: 9.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 40.13 ms. Allocated memory is still 94.4 MB. Free memory was 55.3 MB in the beginning and 53.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 27.20 ms. Allocated memory is still 94.4 MB. Free memory was 53.6 MB in the beginning and 52.3 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 471.33 ms. Allocated memory is still 94.4 MB. Free memory was 52.3 MB in the beginning and 36.9 MB in the end (delta: 15.4 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3474.79 ms. Allocated memory was 94.4 MB in the beginning and 132.1 MB in the end (delta: 37.7 MB). Free memory was 36.5 MB in the beginning and 51.0 MB in the end (delta: -14.6 MB). Peak memory consumption was 23.8 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: No corresponding IProgramVar for |v_#length_13| de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: No corresponding IProgramVar for |v_#length_13|: 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. [2021-10-16 02:40:19,447 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-5709675 [2021-10-16 02:40:22,229 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:40:22,232 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:40:22,270 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:40:22,271 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:40:22,273 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:40:22,276 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:40:22,279 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:40:22,282 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:40:22,284 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:40:22,285 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:40:22,287 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:40:22,288 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:40:22,290 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:40:22,292 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:40:22,294 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:40:22,295 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:40:22,297 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:40:22,300 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:40:22,303 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:40:22,305 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:40:22,308 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:40:22,310 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:40:22,311 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:40:22,316 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:40:22,316 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:40:22,317 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:40:22,318 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:40:22,319 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:40:22,321 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:40:22,322 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:40:22,323 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:40:22,324 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:40:22,326 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:40:22,328 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:40:22,329 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:40:22,330 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:40:22,331 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:40:22,331 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:40:22,333 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:40:22,334 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:40:22,336 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-16 02:40:22,380 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:40:22,380 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:40:22,382 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:40:22,382 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:40:22,382 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:40:22,382 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:40:22,386 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:40:22,386 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:40:22,386 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:40:22,389 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:40:22,390 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:40:22,391 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:40:22,391 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:40:22,391 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:40:22,391 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:40:22,392 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:40:22,392 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:40:22,392 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-16 02:40:22,392 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-16 02:40:22,393 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:40:22,393 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:40:22,393 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:40:22,393 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:40:22,394 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:40:22,394 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 02:40:22,394 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:40:22,394 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:40:22,395 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:40:22,395 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:40:22,395 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:40:22,395 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-16 02:40:22,396 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-16 02:40:22,396 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:40:22,396 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:40:22,397 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:40:22,397 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_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 231a10bb05ed6dc00d2658e900a2b37af0aae558 [2021-10-16 02:40:22,924 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:40:22,953 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:40:22,956 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:40:22,958 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:40:22,959 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:40:22,961 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound2.c [2021-10-16 02:40:23,066 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/data/45eed2e74/d46d22b2f2254acd9385eeba456b0a7d/FLAG8ee97a0a7 [2021-10-16 02:40:23,741 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:40:23,743 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound2.c [2021-10-16 02:40:23,752 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/data/45eed2e74/d46d22b2f2254acd9385eeba456b0a7d/FLAG8ee97a0a7 [2021-10-16 02:40:24,097 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/data/45eed2e74/d46d22b2f2254acd9385eeba456b0a7d [2021-10-16 02:40:24,100 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:40:24,101 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:40:24,116 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:40:24,116 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:40:24,119 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:40:24,120 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:40:24" (1/1) ... [2021-10-16 02:40:24,122 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ef48413 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:40:24, skipping insertion in model container [2021-10-16 02:40:24,122 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:40:24" (1/1) ... [2021-10-16 02:40:24,133 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:40:24,155 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:40:24,297 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_480b0a95-06a8-40c8-9d31-71a9193dc09c/sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound2.c[576,589] [2021-10-16 02:40:24,316 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:40:24,328 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:40:24,342 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_480b0a95-06a8-40c8-9d31-71a9193dc09c/sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound2.c[576,589] [2021-10-16 02:40:24,353 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:40:24,368 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:40:24,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:40:24 WrapperNode [2021-10-16 02:40:24,369 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:40:24,370 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:40:24,370 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:40:24,371 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:40:24,378 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:40:24" (1/1) ... [2021-10-16 02:40:24,387 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:40:24" (1/1) ... [2021-10-16 02:40:24,418 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:40:24,419 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:40:24,420 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:40:24,420 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:40:24,448 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:40:24" (1/1) ... [2021-10-16 02:40:24,448 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:40:24" (1/1) ... [2021-10-16 02:40:24,452 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:40:24" (1/1) ... [2021-10-16 02:40:24,458 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:40:24" (1/1) ... [2021-10-16 02:40:24,467 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:40:24" (1/1) ... [2021-10-16 02:40:24,483 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:40:24" (1/1) ... [2021-10-16 02:40:24,485 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:40:24" (1/1) ... [2021-10-16 02:40:24,489 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:40:24,490 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:40:24,499 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:40:24,499 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:40:24,500 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:40:24" (1/1) ... [2021-10-16 02:40:24,509 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:40:24,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:40:24,543 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:40:24,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:40:24,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-16 02:40:24,596 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:40:24,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:40:24,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:40:25,633 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:40:25,634 INFO L299 CfgBuilder]: Removed 26 assume(true) statements. [2021-10-16 02:40:25,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:40:25 BoogieIcfgContainer [2021-10-16 02:40:25,638 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:40:25,643 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:40:25,643 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:40:25,647 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:40:25,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:40:24" (1/3) ... [2021-10-16 02:40:25,648 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d89c741 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:40:25, skipping insertion in model container [2021-10-16 02:40:25,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:40:24" (2/3) ... [2021-10-16 02:40:25,650 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d89c741 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:40:25, skipping insertion in model container [2021-10-16 02:40:25,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:40:25" (3/3) ... [2021-10-16 02:40:25,652 INFO L111 eAbstractionObserver]: Analyzing ICFG cohendiv-ll_valuebound2.c [2021-10-16 02:40:25,659 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:40:25,659 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2021-10-16 02:40:25,737 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:40:25,750 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 [2021-10-16 02:40:25,750 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-10-16 02:40:25,769 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 35 states have (on average 1.6571428571428573) internal successors, (58), 42 states have internal predecessors, (58), 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) [2021-10-16 02:40:25,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-16 02:40:25,783 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:40:25,783 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:40:25,784 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-16 02:40:25,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:40:25,804 INFO L82 PathProgramCache]: Analyzing trace with hash 330581779, now seen corresponding path program 1 times [2021-10-16 02:40:25,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:40:25,824 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [81621569] [2021-10-16 02:40:25,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:40:25,826 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:40:25,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:40:25,831 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:40:25,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-16 02:40:25,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:40:25,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-16 02:40:25,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:40:26,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:40:26,080 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:40:26,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:40:26,195 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:40:26,195 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [81621569] [2021-10-16 02:40:26,196 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [81621569] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:40:26,196 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:40:26,197 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-16 02:40:26,198 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519817741] [2021-10-16 02:40:26,204 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-16 02:40:26,218 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:40:26,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-16 02:40:26,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-16 02:40:26,252 INFO L87 Difference]: Start difference. First operand has 43 states, 35 states have (on average 1.6571428571428573) internal successors, (58), 42 states have internal predecessors, (58), 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) [2021-10-16 02:40:26,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:40:26,299 INFO L93 Difference]: Finished difference Result 83 states and 112 transitions. [2021-10-16 02:40:26,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 02:40:26,301 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 [2021-10-16 02:40:26,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:40:26,312 INFO L225 Difference]: With dead ends: 83 [2021-10-16 02:40:26,312 INFO L226 Difference]: Without dead ends: 39 [2021-10-16 02:40:26,316 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 [2021-10-16 02:40:26,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-10-16 02:40:26,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2021-10-16 02:40:26,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 32 states have (on average 1.25) internal successors, (40), 38 states have internal predecessors, (40), 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) [2021-10-16 02:40:26,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 40 transitions. [2021-10-16 02:40:26,364 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 40 transitions. Word has length 11 [2021-10-16 02:40:26,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:40:26,365 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 40 transitions. [2021-10-16 02:40:26,365 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) [2021-10-16 02:40:26,366 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 40 transitions. [2021-10-16 02:40:26,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-16 02:40:26,367 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:40:26,367 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:40:26,388 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-16 02:40:26,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:40:26,582 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-16 02:40:26,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:40:26,587 INFO L82 PathProgramCache]: Analyzing trace with hash -1507472743, now seen corresponding path program 1 times [2021-10-16 02:40:26,591 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:40:26,591 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1679862876] [2021-10-16 02:40:26,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:40:26,592 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:40:26,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:40:26,594 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:40:26,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-16 02:40:26,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:40:26,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-16 02:40:26,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:40:27,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:40:27,215 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:40:27,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:40:27,972 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:40:27,972 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1679862876] [2021-10-16 02:40:27,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1679862876] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:40:27,973 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:40:27,973 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 4] imperfect sequences [] total 8 [2021-10-16 02:40:27,973 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799642229] [2021-10-16 02:40:27,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-16 02:40:27,975 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:40:27,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-16 02:40:27,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-16 02:40:27,977 INFO L87 Difference]: Start difference. First operand 39 states and 40 transitions. Second operand has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 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) [2021-10-16 02:40:31,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:40:31,227 INFO L93 Difference]: Finished difference Result 51 states and 53 transitions. [2021-10-16 02:40:31,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-16 02:40:31,239 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 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 [2021-10-16 02:40:31,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:40:31,240 INFO L225 Difference]: With dead ends: 51 [2021-10-16 02:40:31,241 INFO L226 Difference]: Without dead ends: 45 [2021-10-16 02:40:31,242 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2028.0ms TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2021-10-16 02:40:31,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-10-16 02:40:31,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 33. [2021-10-16 02:40:31,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 29 states have (on average 1.1724137931034482) internal successors, (34), 32 states have internal predecessors, (34), 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) [2021-10-16 02:40:31,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2021-10-16 02:40:31,250 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 11 [2021-10-16 02:40:31,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:40:31,251 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2021-10-16 02:40:31,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 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) [2021-10-16 02:40:31,251 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2021-10-16 02:40:31,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-16 02:40:31,252 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:40:31,253 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:40:31,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-16 02:40:31,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:40:31,460 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-16 02:40:31,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:40:31,461 INFO L82 PathProgramCache]: Analyzing trace with hash -1277171076, now seen corresponding path program 1 times [2021-10-16 02:40:31,461 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:40:31,475 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1893954856] [2021-10-16 02:40:31,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:40:31,476 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:40:31,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:40:31,478 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:40:31,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-16 02:40:31,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:40:31,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-16 02:40:31,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:40:32,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:40:32,386 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:40:34,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:40:34,478 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:40:34,478 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1893954856] [2021-10-16 02:40:34,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1893954856] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:40:34,479 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:40:34,479 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 4] imperfect sequences [] total 10 [2021-10-16 02:40:34,479 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709786876] [2021-10-16 02:40:34,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-16 02:40:34,480 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:40:34,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-16 02:40:34,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-10-16 02:40:34,482 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand has 10 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 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) [2021-10-16 02:40:36,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:40:36,196 INFO L93 Difference]: Finished difference Result 60 states and 62 transitions. [2021-10-16 02:40:36,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-16 02:40:36,202 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 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 13 [2021-10-16 02:40:36,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:40:36,204 INFO L225 Difference]: With dead ends: 60 [2021-10-16 02:40:36,204 INFO L226 Difference]: Without dead ends: 50 [2021-10-16 02:40:36,205 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1932.6ms TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2021-10-16 02:40:36,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-10-16 02:40:36,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 47. [2021-10-16 02:40:36,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 43 states have (on average 1.1395348837209303) internal successors, (49), 46 states have internal predecessors, (49), 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) [2021-10-16 02:40:36,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 49 transitions. [2021-10-16 02:40:36,217 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 49 transitions. Word has length 13 [2021-10-16 02:40:36,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:40:36,218 INFO L470 AbstractCegarLoop]: Abstraction has 47 states and 49 transitions. [2021-10-16 02:40:36,218 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 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) [2021-10-16 02:40:36,219 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 49 transitions. [2021-10-16 02:40:36,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-16 02:40:36,220 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:40:36,220 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:40:36,248 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-16 02:40:36,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:40:36,446 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-16 02:40:36,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:40:36,447 INFO L82 PathProgramCache]: Analyzing trace with hash 1755069467, now seen corresponding path program 1 times [2021-10-16 02:40:36,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:40:36,448 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [802799565] [2021-10-16 02:40:36,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:40:36,449 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:40:36,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:40:36,450 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:40:36,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-16 02:40:36,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:40:36,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 20 conjunts are in the unsatisfiable core [2021-10-16 02:40:36,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:40:39,098 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:40:39,098 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:40:59,655 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:40:59,655 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:40:59,656 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [802799565] [2021-10-16 02:40:59,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [802799565] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:40:59,656 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [485426212] [2021-10-16 02:40:59,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:40:59,657 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 02:40:59,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 02:40:59,671 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 02:40:59,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2021-10-16 02:41:00,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:41:00,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-16 02:41:00,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:41:01,728 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:41:01,729 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:41:11,786 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:41:11,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [485426212] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:41:11,787 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2145514113] [2021-10-16 02:41:11,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:41:11,787 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:41:11,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:41:11,789 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:41:11,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-16 02:41:12,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:41:12,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 23 conjunts are in the unsatisfiable core [2021-10-16 02:41:12,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:41:13,616 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:41:13,616 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:41:35,939 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:41:35,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2145514113] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:41:35,939 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-16 02:41:35,940 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 7, 13, 7, 14, 9] total 21 [2021-10-16 02:41:35,940 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953436825] [2021-10-16 02:41:35,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-16 02:41:35,941 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:41:35,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-16 02:41:35,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=324, Unknown=0, NotChecked=0, Total=420 [2021-10-16 02:41:35,943 INFO L87 Difference]: Start difference. First operand 47 states and 49 transitions. Second operand has 21 states, 21 states have (on average 2.8095238095238093) internal successors, (59), 21 states have internal predecessors, (59), 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) [2021-10-16 02:42:18,082 WARN L207 SmtUtils]: Spent 5.34 s on a formula simplification. DAG size of input: 43 DAG size of output: 27 [2021-10-16 02:42:26,670 WARN L207 SmtUtils]: Spent 6.33 s on a formula simplification. DAG size of input: 46 DAG size of output: 30 [2021-10-16 02:43:45,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:43:45,479 INFO L93 Difference]: Finished difference Result 128 states and 142 transitions. [2021-10-16 02:43:45,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-10-16 02:43:45,495 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.8095238095238093) internal successors, (59), 21 states have internal predecessors, (59), 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 26 [2021-10-16 02:43:45,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:43:45,497 INFO L225 Difference]: With dead ends: 128 [2021-10-16 02:43:45,497 INFO L226 Difference]: Without dead ends: 91 [2021-10-16 02:43:45,498 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 132 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 452 ImplicationChecksByTransitivity, 106312.6ms TimeCoverageRelationStatistics Valid=640, Invalid=1430, Unknown=0, NotChecked=0, Total=2070 [2021-10-16 02:43:45,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2021-10-16 02:43:45,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 76. [2021-10-16 02:43:45,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 72 states have (on average 1.1388888888888888) internal successors, (82), 75 states have internal predecessors, (82), 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) [2021-10-16 02:43:45,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 82 transitions. [2021-10-16 02:43:45,516 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 82 transitions. Word has length 26 [2021-10-16 02:43:45,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:43:45,517 INFO L470 AbstractCegarLoop]: Abstraction has 76 states and 82 transitions. [2021-10-16 02:43:45,517 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.8095238095238093) internal successors, (59), 21 states have internal predecessors, (59), 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) [2021-10-16 02:43:45,518 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 82 transitions. [2021-10-16 02:43:45,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-10-16 02:43:45,519 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:43:45,520 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:43:45,575 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-16 02:43:45,740 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2021-10-16 02:43:45,946 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-10-16 02:43:46,136 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:43:46,136 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-16 02:43:46,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:43:46,137 INFO L82 PathProgramCache]: Analyzing trace with hash -1267754724, now seen corresponding path program 1 times [2021-10-16 02:43:46,137 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:43:46,137 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [256429057] [2021-10-16 02:43:46,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:43:46,138 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:43:46,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:43:46,139 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:43:46,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-16 02:43:46,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:43:46,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 20 conjunts are in the unsatisfiable core [2021-10-16 02:43:46,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:43:49,318 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 12 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:43:49,319 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:44:37,314 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 12 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:44:37,314 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:44:37,315 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [256429057] [2021-10-16 02:44:37,315 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [256429057] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:44:37,315 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2136550062] [2021-10-16 02:44:37,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:44:37,316 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 02:44:37,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 02:44:37,330 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 02:44:37,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2021-10-16 02:44:38,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:44:38,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-16 02:44:38,293 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:44:47,511 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:44:47,512 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:44:56,739 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 5 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:44:56,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2136550062] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:44:56,740 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2119268848] [2021-10-16 02:44:56,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:44:56,740 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:44:56,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:44:56,742 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:44:56,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-16 02:44:57,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:44:57,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-16 02:44:57,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:45:02,022 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-16 02:45:02,022 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:45:04,808 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-16 02:45:04,809 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2119268848] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:45:04,809 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-16 02:45:04,809 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 8, 7, 6, 6] total 42 [2021-10-16 02:45:04,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701046054] [2021-10-16 02:45:04,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2021-10-16 02:45:04,811 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:45:04,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2021-10-16 02:45:04,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=272, Invalid=1450, Unknown=0, NotChecked=0, Total=1722 [2021-10-16 02:45:04,813 INFO L87 Difference]: Start difference. First operand 76 states and 82 transitions. Second operand has 42 states, 42 states have (on average 4.5) internal successors, (189), 42 states have internal predecessors, (189), 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) [2021-10-16 02:45:22,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:45:22,881 INFO L93 Difference]: Finished difference Result 91 states and 98 transitions. [2021-10-16 02:45:22,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-16 02:45:22,894 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 4.5) internal successors, (189), 42 states have internal predecessors, (189), 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 42 [2021-10-16 02:45:22,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:45:22,894 INFO L225 Difference]: With dead ends: 91 [2021-10-16 02:45:22,894 INFO L226 Difference]: Without dead ends: 0 [2021-10-16 02:45:22,897 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 206 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 707 ImplicationChecksByTransitivity, 69503.0ms TimeCoverageRelationStatistics Valid=639, Invalid=2223, Unknown=0, NotChecked=0, Total=2862 [2021-10-16 02:45:22,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-16 02:45:22,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-16 02:45:22,897 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) [2021-10-16 02:45:22,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-16 02:45:22,898 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 42 [2021-10-16 02:45:22,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:45:22,898 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-16 02:45:22,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 4.5) internal successors, (189), 42 states have internal predecessors, (189), 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) [2021-10-16 02:45:22,898 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-16 02:45:22,899 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-16 02:45:22,901 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:45:22,902 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:45:22,902 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:45:22,902 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:45:22,903 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:45:22,903 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:45:22,903 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:45:22,916 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2021-10-16 02:45:23,152 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2021-10-16 02:45:23,327 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-16 02:45:23,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:45:23,513 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-16 02:45:23,517 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:45:23,554 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:45:23,645 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:45:23,692 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:45:23,723 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:45:23,748 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:45:23,776 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:45:23,817 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:45:23,848 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:45:23,880 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:45:44,671 WARN L207 SmtUtils]: Spent 7.53 s on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-10-16 02:45:54,987 WARN L207 SmtUtils]: Spent 10.31 s on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-10-16 02:46:03,385 WARN L207 SmtUtils]: Spent 8.40 s on a formula simplification. DAG size of input: 80 DAG size of output: 65 [2021-10-16 02:46:03,394 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-16 02:46:03,394 INFO L857 garLoopResultBuilder]: For program point L11(lines 11 13) no Hoare annotation was computed. [2021-10-16 02:46:03,394 INFO L857 garLoopResultBuilder]: For program point L11-1(lines 11 13) no Hoare annotation was computed. [2021-10-16 02:46:03,394 INFO L857 garLoopResultBuilder]: For program point L11-2(lines 11 13) no Hoare annotation was computed. [2021-10-16 02:46:03,394 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-16 02:46:03,394 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-16 02:46:03,395 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-16 02:46:03,395 INFO L857 garLoopResultBuilder]: For program point L12(line 12) no Hoare annotation was computed. [2021-10-16 02:46:03,395 INFO L857 garLoopResultBuilder]: For program point L12-2(line 12) no Hoare annotation was computed. [2021-10-16 02:46:03,395 INFO L857 garLoopResultBuilder]: For program point L12-4(line 12) no Hoare annotation was computed. [2021-10-16 02:46:03,395 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-16 02:46:03,396 INFO L853 garLoopResultBuilder]: At program point L38-2(lines 38 62) the Hoare annotation is: (let ((.cse7 (not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))) (.cse9 ((_ sign_extend 32) ULTIMATE.start_main_~y~0)) (.cse3 ((_ sign_extend 32) (_ bv0 32)))) (let ((.cse0 (bvsle ULTIMATE.start_main_~x~0 (_ bv2 32))) (.cse1 (= ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32))) (.cse10 ((_ sign_extend 32) (_ bv2 32))) (.cse4 (bvsge ULTIMATE.start_main_~x~0 (_ bv0 32))) (.cse8 (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32))) (.cse11 (bvsge ULTIMATE.start_main_~y~0 (_ bv0 32))) (.cse2 ((_ sign_extend 32) ULTIMATE.start_main_~x~0)) (.cse5 (bvsle ULTIMATE.start_main_~y~0 (_ bv2 32))) (.cse6 (or (and .cse7 (= (bvmul .cse9 ULTIMATE.start_main_~a~0) ULTIMATE.start_main_~b~0)) (and (= .cse3 ULTIMATE.start_main_~b~0) (= .cse3 ULTIMATE.start_main_~a~0))))) (or (and .cse0 .cse1 (= .cse2 ULTIMATE.start_main_~r~0) (bvsge ULTIMATE.start_main_~y~0 (_ bv1 32)) (= .cse3 ULTIMATE.start_main_~q~0) .cse4 .cse5 .cse6) (and .cse0 .cse1 .cse7 .cse4 .cse8 (not (bvsge (bvadd .cse2 (bvmul (_ bv18446744073709551615 64) .cse9 (bvadd ULTIMATE.start_main_~q~0 (bvmul ULTIMATE.start_main_~a~0 .cse10)))) .cse9)) .cse11 (not (bvsge (bvadd .cse2 (bvmul (_ bv18446744073709551615 64) .cse9 (bvadd ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~a~0))) .cse9)) .cse5 (= .cse2 (bvadd (bvmul .cse9 ULTIMATE.start_main_~q~0) ULTIMATE.start_main_~r~0)) (exists ((ULTIMATE.start_main_~x~0 (_ BitVec 32))) (let ((.cse14 ((_ sign_extend 32) ULTIMATE.start_main_~x~0)) (.cse13 ((_ sign_extend 32) (_ bv2 32))) (.cse12 ((_ sign_extend 32) ULTIMATE.start_main_~y~0))) (and (bvsle ULTIMATE.start_main_~x~0 (_ bv2 32)) (= (bvadd ULTIMATE.start_main_~r~0 (bvmul .cse12 ((_ sign_extend 32) (_ bv0 32))) (bvmul .cse12 ((_ sign_extend 32) (_ bv1 32)) .cse13)) .cse14) (bvsge .cse14 (bvmul .cse13 .cse12))))) .cse6) (let ((.cse16 (bvneg .cse9))) (let ((.cse15 (bvadd ULTIMATE.start_main_~r~0 (bvmul .cse16 (_ bv18446744073709551615 64))))) (and .cse0 .cse1 .cse7 (= ULTIMATE.start_main_~q~0 (bvadd .cse3 ((_ sign_extend 32) (_ bv1 32)))) (not (bvsge .cse15 (bvmul .cse10 .cse9))) .cse4 .cse8 (bvsge .cse15 .cse9) .cse11 (= (bvadd .cse2 .cse16) ULTIMATE.start_main_~r~0) .cse5 .cse6)))))) [2021-10-16 02:46:03,396 INFO L857 garLoopResultBuilder]: For program point L38-3(lines 38 62) no Hoare annotation was computed. [2021-10-16 02:46:03,396 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-16 02:46:03,396 INFO L853 garLoopResultBuilder]: At program point L47-2(lines 47 59) the Hoare annotation is: (let ((.cse7 ((_ sign_extend 32) ULTIMATE.start_main_~y~0)) (.cse8 ((_ sign_extend 32) ULTIMATE.start_main_~x~0))) (let ((.cse0 (bvsle ULTIMATE.start_main_~x~0 (_ bv2 32))) (.cse1 (= ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32))) (.cse2 (= .cse8 ULTIMATE.start_main_~r~0)) (.cse3 (= (bvmul .cse7 ULTIMATE.start_main_~a~0) ULTIMATE.start_main_~b~0)) (.cse4 (bvsge ULTIMATE.start_main_~y~0 (_ bv1 32))) (.cse5 (= ((_ sign_extend 32) (_ bv0 32)) ULTIMATE.start_main_~q~0)) (.cse6 (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (= ((_ sign_extend 32) (_ bv1 32)) ULTIMATE.start_main_~a~0) .cse6 (bvsge ULTIMATE.start_main_~r~0 .cse7)) (let ((.cse9 ((_ sign_extend 32) (_ bv2 32)))) (and .cse0 .cse1 .cse2 .cse3 .cse4 (bvsge .cse8 (bvmul .cse9 .cse7)) .cse5 .cse6 (= (bvmul .cse7 .cse9) ULTIMATE.start_main_~b~0)))))) [2021-10-16 02:46:03,396 INFO L857 garLoopResultBuilder]: For program point L47-3(lines 47 59) no Hoare annotation was computed. [2021-10-16 02:46:03,396 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-16 02:46:03,396 INFO L857 garLoopResultBuilder]: For program point L15(lines 15 18) no Hoare annotation was computed. [2021-10-16 02:46:03,397 INFO L853 garLoopResultBuilder]: At program point L15-2(lines 14 20) the Hoare annotation is: (let ((.cse7 ((_ sign_extend 32) ULTIMATE.start_main_~y~0))) (let ((.cse3 (bvsge ULTIMATE.start_main_~y~0 (_ bv1 32))) (.cse4 (bvsge ULTIMATE.start_main_~x~0 (_ bv0 32))) (.cse0 (bvsle ULTIMATE.start_main_~x~0 (_ bv2 32))) (.cse1 (= ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32))) (.cse12 ((_ sign_extend 32) (_ bv0 32))) (.cse2 (= (bvmul .cse7 ULTIMATE.start_main_~a~0) ULTIMATE.start_main_~b~0)) (.cse8 ((_ sign_extend 32) (_ bv2 32))) (.cse5 (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32))) (.cse6 ((_ sign_extend 32) ULTIMATE.start_main_~x~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (not (bvsge (bvadd .cse6 (bvmul (_ bv18446744073709551615 64) .cse7 (bvadd ULTIMATE.start_main_~q~0 (bvmul ULTIMATE.start_main_~a~0 .cse8)))) .cse7)) (not (bvsge (bvadd .cse6 (bvmul (_ bv18446744073709551615 64) .cse7 (bvadd ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~a~0))) .cse7)) (= .cse6 (bvadd (bvmul .cse7 ULTIMATE.start_main_~q~0) ULTIMATE.start_main_~r~0)) (exists ((ULTIMATE.start_main_~x~0 (_ BitVec 32))) (let ((.cse11 ((_ sign_extend 32) ULTIMATE.start_main_~x~0)) (.cse10 ((_ sign_extend 32) (_ bv2 32))) (.cse9 ((_ sign_extend 32) ULTIMATE.start_main_~y~0))) (and (bvsle ULTIMATE.start_main_~x~0 (_ bv2 32)) (= (bvadd ULTIMATE.start_main_~r~0 (bvmul .cse9 ((_ sign_extend 32) (_ bv0 32))) (bvmul .cse9 ((_ sign_extend 32) (_ bv1 32)) .cse10)) .cse11) (bvsge .cse11 (bvmul .cse10 .cse9)))))) (and .cse0 .cse1 (= .cse6 ULTIMATE.start_main_~r~0) .cse2 .cse3 (= .cse12 ULTIMATE.start_main_~q~0) .cse4 .cse5 (bvsle ULTIMATE.start_main_~y~0 (_ bv2 32))) (let ((.cse14 (bvneg .cse7))) (let ((.cse13 (bvadd ULTIMATE.start_main_~r~0 (bvmul .cse14 (_ bv18446744073709551615 64))))) (and .cse0 .cse1 (= ULTIMATE.start_main_~q~0 (bvadd .cse12 ((_ sign_extend 32) (_ bv1 32)))) .cse2 (not (bvsge .cse13 (bvmul .cse8 .cse7))) .cse5 (bvsge .cse13 .cse7) (= (bvadd .cse6 .cse14) ULTIMATE.start_main_~r~0))))))) [2021-10-16 02:46:03,397 INFO L857 garLoopResultBuilder]: For program point L15-3(lines 15 18) no Hoare annotation was computed. [2021-10-16 02:46:03,397 INFO L853 garLoopResultBuilder]: At program point L15-5(lines 42 43) the Hoare annotation is: (let ((.cse9 ((_ sign_extend 32) ULTIMATE.start_main_~y~0))) (let ((.cse0 (bvsle ULTIMATE.start_main_~x~0 (_ bv2 32))) (.cse4 ((_ sign_extend 32) (_ bv0 32))) (.cse6 ((_ sign_extend 32) (_ bv1 32))) (.cse1 (= ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32))) (.cse3 (= (bvmul .cse9 ULTIMATE.start_main_~a~0) ULTIMATE.start_main_~b~0)) (.cse5 (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32))) (.cse8 ((_ sign_extend 32) (_ bv2 32))) (.cse2 ((_ sign_extend 32) ULTIMATE.start_main_~x~0))) (or (and .cse0 .cse1 (= .cse2 ULTIMATE.start_main_~r~0) .cse3 (bvsge ULTIMATE.start_main_~y~0 (_ bv1 32)) (= .cse4 ULTIMATE.start_main_~q~0) (bvsge ULTIMATE.start_main_~x~0 (_ bv0 32)) .cse5 (bvsle ULTIMATE.start_main_~y~0 (_ bv2 32))) (let ((.cse10 (bvneg .cse9))) (let ((.cse7 (bvadd ULTIMATE.start_main_~r~0 (bvmul .cse10 (_ bv18446744073709551615 64))))) (and .cse0 .cse1 (= ULTIMATE.start_main_~q~0 (bvadd .cse4 .cse6)) .cse3 (not (bvsge .cse7 (bvmul .cse8 .cse9))) .cse5 (bvsge .cse7 .cse9) (= (bvadd .cse2 .cse10) ULTIMATE.start_main_~r~0)))) (and (= ULTIMATE.start_main_~q~0 (bvadd .cse4 (bvmul .cse6 .cse8))) .cse1 .cse3 .cse5 (not (bvsge (bvadd .cse2 (bvmul (_ bv18446744073709551615 64) .cse9 (bvadd ULTIMATE.start_main_~q~0 (bvmul ULTIMATE.start_main_~a~0 .cse8)))) .cse9)) (bvsge ULTIMATE.start_main_~y~0 (_ bv0 32)) (not (bvsge (bvadd .cse2 (bvmul (_ bv18446744073709551615 64) .cse9 (bvadd ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~a~0))) .cse9)) (= .cse2 (bvadd (bvmul .cse9 ULTIMATE.start_main_~q~0) ULTIMATE.start_main_~r~0)) (exists ((ULTIMATE.start_main_~x~0 (_ BitVec 32))) (let ((.cse13 ((_ sign_extend 32) ULTIMATE.start_main_~x~0)) (.cse12 ((_ sign_extend 32) (_ bv2 32))) (.cse11 ((_ sign_extend 32) ULTIMATE.start_main_~y~0))) (and (bvsle ULTIMATE.start_main_~x~0 (_ bv2 32)) (= (bvadd ULTIMATE.start_main_~r~0 (bvmul .cse11 ((_ sign_extend 32) (_ bv0 32))) (bvmul .cse11 ((_ sign_extend 32) (_ bv1 32)) .cse12)) .cse13) (bvsge .cse13 (bvmul .cse12 .cse11))))))))) [2021-10-16 02:46:03,397 INFO L857 garLoopResultBuilder]: For program point L15-6(lines 15 18) no Hoare annotation was computed. [2021-10-16 02:46:03,397 INFO L853 garLoopResultBuilder]: At program point L15-8(lines 14 20) the Hoare annotation is: (let ((.cse7 ((_ sign_extend 32) ULTIMATE.start_main_~y~0)) (.cse8 ((_ sign_extend 32) ULTIMATE.start_main_~x~0))) (let ((.cse0 (bvsle ULTIMATE.start_main_~x~0 (_ bv2 32))) (.cse1 (= ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32))) (.cse2 (= .cse8 ULTIMATE.start_main_~r~0)) (.cse3 (= (bvmul .cse7 ULTIMATE.start_main_~a~0) ULTIMATE.start_main_~b~0)) (.cse4 (bvsge ULTIMATE.start_main_~y~0 (_ bv1 32))) (.cse5 (= ((_ sign_extend 32) (_ bv0 32)) ULTIMATE.start_main_~q~0)) (.cse6 (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (= ((_ sign_extend 32) (_ bv1 32)) ULTIMATE.start_main_~a~0) .cse6 (bvsge ULTIMATE.start_main_~r~0 .cse7)) (let ((.cse9 ((_ sign_extend 32) (_ bv2 32)))) (and .cse0 .cse1 .cse2 .cse3 .cse4 (bvsge .cse8 (bvmul .cse9 .cse7)) .cse5 .cse6 (= (bvmul .cse7 .cse9) ULTIMATE.start_main_~b~0)))))) [2021-10-16 02:46:03,398 INFO L857 garLoopResultBuilder]: For program point L15-9(lines 15 18) no Hoare annotation was computed. [2021-10-16 02:46:03,398 INFO L853 garLoopResultBuilder]: At program point L15-11(lines 14 20) the Hoare annotation is: (let ((.cse7 ((_ sign_extend 32) ULTIMATE.start_main_~y~0)) (.cse8 ((_ sign_extend 32) ULTIMATE.start_main_~x~0))) (let ((.cse0 (bvsle ULTIMATE.start_main_~x~0 (_ bv2 32))) (.cse1 (= ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32))) (.cse2 (= .cse8 ULTIMATE.start_main_~r~0)) (.cse3 (= (bvmul .cse7 ULTIMATE.start_main_~a~0) ULTIMATE.start_main_~b~0)) (.cse4 (bvsge ULTIMATE.start_main_~y~0 (_ bv1 32))) (.cse5 (= ((_ sign_extend 32) (_ bv0 32)) ULTIMATE.start_main_~q~0)) (.cse6 (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (= ((_ sign_extend 32) (_ bv1 32)) ULTIMATE.start_main_~a~0) .cse6 (bvsge ULTIMATE.start_main_~r~0 .cse7)) (let ((.cse9 ((_ sign_extend 32) (_ bv2 32)))) (and .cse0 .cse1 .cse2 .cse3 .cse4 (bvsge .cse8 (bvmul .cse9 .cse7)) .cse5 .cse6 (= (bvmul .cse7 .cse9) ULTIMATE.start_main_~b~0)))))) [2021-10-16 02:46:03,398 INFO L857 garLoopResultBuilder]: For program point L15-12(lines 15 18) no Hoare annotation was computed. [2021-10-16 02:46:03,398 INFO L853 garLoopResultBuilder]: At program point L15-14(lines 52 53) the Hoare annotation is: (let ((.cse7 ((_ sign_extend 32) ULTIMATE.start_main_~y~0)) (.cse8 ((_ sign_extend 32) ULTIMATE.start_main_~x~0))) (let ((.cse0 (bvsle ULTIMATE.start_main_~x~0 (_ bv2 32))) (.cse1 (= ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32))) (.cse2 (= .cse8 ULTIMATE.start_main_~r~0)) (.cse3 (= (bvmul .cse7 ULTIMATE.start_main_~a~0) ULTIMATE.start_main_~b~0)) (.cse4 (bvsge ULTIMATE.start_main_~y~0 (_ bv1 32))) (.cse5 (= ((_ sign_extend 32) (_ bv0 32)) ULTIMATE.start_main_~q~0)) (.cse6 (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (= ((_ sign_extend 32) (_ bv1 32)) ULTIMATE.start_main_~a~0) .cse6 (bvsge ULTIMATE.start_main_~r~0 .cse7)) (let ((.cse9 ((_ sign_extend 32) (_ bv2 32)))) (and .cse0 .cse1 .cse2 .cse3 .cse4 (bvsge .cse8 (bvmul .cse9 .cse7)) .cse5 .cse6 (= (bvmul .cse7 .cse9) ULTIMATE.start_main_~b~0)))))) [2021-10-16 02:46:03,398 INFO L860 garLoopResultBuilder]: At program point L65(lines 22 66) the Hoare annotation is: true [2021-10-16 02:46:03,398 INFO L857 garLoopResultBuilder]: For program point L15-15(lines 15 18) no Hoare annotation was computed. [2021-10-16 02:46:03,399 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-16 02:46:03,399 INFO L853 garLoopResultBuilder]: At program point L15-17(lines 14 20) the Hoare annotation is: (let ((.cse0 ((_ sign_extend 32) ULTIMATE.start_main_~x~0)) (.cse1 ((_ sign_extend 32) ULTIMATE.start_main_~y~0))) (and (bvsle ULTIMATE.start_main_~x~0 (_ bv2 32)) (= ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32)) (= .cse0 ULTIMATE.start_main_~r~0) (= (bvmul .cse1 ULTIMATE.start_main_~a~0) ULTIMATE.start_main_~b~0) (bvsge ULTIMATE.start_main_~y~0 (_ bv1 32)) (bvsge .cse0 (bvmul ((_ sign_extend 32) (_ bv2 32)) .cse1)) (= ((_ sign_extend 32) (_ bv0 32)) ULTIMATE.start_main_~q~0) (= ((_ sign_extend 32) (_ bv1 32)) ULTIMATE.start_main_~a~0) (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32)))) [2021-10-16 02:46:03,399 INFO L857 garLoopResultBuilder]: For program point L15-18(lines 15 18) no Hoare annotation was computed. [2021-10-16 02:46:03,399 INFO L860 garLoopResultBuilder]: At program point L15-20(lines 14 20) the Hoare annotation is: true [2021-10-16 02:46:03,399 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-16 02:46:03,399 INFO L857 garLoopResultBuilder]: For program point L16(lines 16 17) no Hoare annotation was computed. [2021-10-16 02:46:03,399 INFO L857 garLoopResultBuilder]: For program point L16-1(lines 16 17) no Hoare annotation was computed. [2021-10-16 02:46:03,400 INFO L857 garLoopResultBuilder]: For program point L16-2(lines 16 17) no Hoare annotation was computed. [2021-10-16 02:46:03,400 INFO L857 garLoopResultBuilder]: For program point L16-3(lines 16 17) no Hoare annotation was computed. [2021-10-16 02:46:03,400 INFO L857 garLoopResultBuilder]: For program point L16-4(lines 16 17) no Hoare annotation was computed. [2021-10-16 02:46:03,400 INFO L857 garLoopResultBuilder]: For program point L16-5(lines 16 17) no Hoare annotation was computed. [2021-10-16 02:46:03,400 INFO L857 garLoopResultBuilder]: For program point L16-6(lines 16 17) no Hoare annotation was computed. [2021-10-16 02:46:03,400 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-16 02:46:03,400 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-16 02:46:03,405 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 02:46:03,439 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: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) [2021-10-16 02:46:03,442 INFO L168 Benchmark]: Toolchain (without parser) took 339340.66 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 68.4 MB in the beginning and 42.0 MB in the end (delta: 26.4 MB). Peak memory consumption was 62.2 MB. Max. memory is 16.1 GB. [2021-10-16 02:46:03,443 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 50.3 MB. Free memory was 30.3 MB in the beginning and 30.3 MB in the end (delta: 40.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:46:03,444 INFO L168 Benchmark]: CACSL2BoogieTranslator took 253.63 ms. Allocated memory is still 90.2 MB. Free memory was 68.1 MB in the beginning and 57.7 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-16 02:46:03,444 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.54 ms. Allocated memory is still 90.2 MB. Free memory was 57.5 MB in the beginning and 73.9 MB in the end (delta: -16.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-16 02:46:03,445 INFO L168 Benchmark]: Boogie Preprocessor took 69.62 ms. Allocated memory is still 90.2 MB. Free memory was 73.9 MB in the beginning and 72.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:46:03,445 INFO L168 Benchmark]: RCFGBuilder took 1148.69 ms. Allocated memory is still 90.2 MB. Free memory was 72.6 MB in the beginning and 61.2 MB in the end (delta: 11.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-16 02:46:03,446 INFO L168 Benchmark]: TraceAbstraction took 337798.43 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 61.0 MB in the beginning and 42.0 MB in the end (delta: 19.0 MB). Peak memory consumption was 57.4 MB. Max. memory is 16.1 GB. [2021-10-16 02:46:03,448 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 50.3 MB. Free memory was 30.3 MB in the beginning and 30.3 MB in the end (delta: 40.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 253.63 ms. Allocated memory is still 90.2 MB. Free memory was 68.1 MB in the beginning and 57.7 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 48.54 ms. Allocated memory is still 90.2 MB. Free memory was 57.5 MB in the beginning and 73.9 MB in the end (delta: -16.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 69.62 ms. Allocated memory is still 90.2 MB. Free memory was 73.9 MB in the beginning and 72.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1148.69 ms. Allocated memory is still 90.2 MB. Free memory was 72.6 MB in the beginning and 61.2 MB in the end (delta: 11.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 337798.43 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 61.0 MB in the beginning and 42.0 MB in the end (delta: 19.0 MB). Peak memory consumption was 57.4 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: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: 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, 43 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 337669.6ms, OverallIterations: 5, TraceHistogramMax: 3, EmptinessCheckTime: 22.5ms, AutomataDifference: 152728.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 39881.5ms, InitialAbstractionConstructionTime: 14.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 94 SDtfs, 739 SDslu, 230 SDs, 0 SdLazy, 777 SolverSat, 619 SolverUnsat, 13 SolverUnknown, 0 SolverNotchecked, 51066.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 512 GetRequests, 388 SyntacticMatches, 2 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1205 ImplicationChecksByTransitivity, 179776.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=76occurred in iteration=4, InterpolantAutomatonStates: 72, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 70.4ms AutomataMinimizationTime, 5 MinimizatonAttempts, 30 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 30 NumberOfFragments, 962 HoareAnnotationTreeSize, 10 FomulaSimplifications, 569 FormulaSimplificationTreeSizeReduction, 365.6ms HoareSimplificationTime, 10 FomulaSimplificationsInter, 831 FormulaSimplificationTreeSizeReductionInter, 39507.4ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 97.6ms SsaConstructionTime, 2062.8ms SatisfiabilityAnalysisTime, 139193.2ms InterpolantComputationTime, 239 NumberOfCodeBlocks, 239 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 460 ConstructedInterpolants, 36 QuantifiedInterpolants, 5945 SizeOfPredicates, 87 NumberOfNonLiveVariables, 588 ConjunctsInSsa, 121 ConjunctsInUnsatCore, 18 InterpolantComputations, 6 PerfectInterpolantSequences, 62/168 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 7 specifications checked. All of them hold - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: ((((((((~bvsle32(x, 2bv32) && cond == 1bv32) && ~sign_extendFrom8To32(x) == r) && ~bvmul64(~sign_extendFrom8To32(y), a) == b) && ~bvsge64(y, 1bv32)) && ~sign_extendFrom8To32(0bv32) == q) && ~sign_extendFrom8To32(1bv32) == a) && cond == 1bv32) && ~bvsge64(r, ~sign_extendFrom8To32(y))) || ((((((((~bvsle32(x, 2bv32) && cond == 1bv32) && ~sign_extendFrom8To32(x) == r) && ~bvmul64(~sign_extendFrom8To32(y), a) == b) && ~bvsge64(y, 1bv32)) && ~bvsge64(~sign_extendFrom8To32(x), ~bvmul64(~sign_extendFrom8To32(2bv32), ~sign_extendFrom8To32(y)))) && ~sign_extendFrom8To32(0bv32) == q) && cond == 1bv32) && ~bvmul64(~sign_extendFrom8To32(y), ~sign_extendFrom8To32(2bv32)) == b) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: (((((((~bvsle32(x, 2bv32) && cond == 1bv32) && ~sign_extendFrom8To32(x) == r) && ~bvmul64(~sign_extendFrom8To32(y), a) == b) && ~bvsge64(y, 1bv32)) && ~bvsge64(~sign_extendFrom8To32(x), ~bvmul64(~sign_extendFrom8To32(2bv32), ~sign_extendFrom8To32(y)))) && ~sign_extendFrom8To32(0bv32) == q) && ~sign_extendFrom8To32(1bv32) == a) && cond == 1bv32 - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: ((((((((~bvsle32(x, 2bv32) && cond == 1bv32) && ~sign_extendFrom8To32(x) == r) && ~bvmul64(~sign_extendFrom8To32(y), a) == b) && ~bvsge64(y, 1bv32)) && ~sign_extendFrom8To32(0bv32) == q) && ~sign_extendFrom8To32(1bv32) == a) && cond == 1bv32) && ~bvsge64(r, ~sign_extendFrom8To32(y))) || ((((((((~bvsle32(x, 2bv32) && cond == 1bv32) && ~sign_extendFrom8To32(x) == r) && ~bvmul64(~sign_extendFrom8To32(y), a) == b) && ~bvsge64(y, 1bv32)) && ~bvsge64(~sign_extendFrom8To32(x), ~bvmul64(~sign_extendFrom8To32(2bv32), ~sign_extendFrom8To32(y)))) && ~sign_extendFrom8To32(0bv32) == q) && cond == 1bv32) && ~bvmul64(~sign_extendFrom8To32(y), ~sign_extendFrom8To32(2bv32)) == b) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: ((((((((~bvsle32(x, 2bv32) && cond == 1bv32) && ~sign_extendFrom8To32(x) == r) && ~bvmul64(~sign_extendFrom8To32(y), a) == b) && ~bvsge64(y, 1bv32)) && ~sign_extendFrom8To32(0bv32) == q) && ~sign_extendFrom8To32(1bv32) == a) && cond == 1bv32) && ~bvsge64(r, ~sign_extendFrom8To32(y))) || ((((((((~bvsle32(x, 2bv32) && cond == 1bv32) && ~sign_extendFrom8To32(x) == r) && ~bvmul64(~sign_extendFrom8To32(y), a) == b) && ~bvsge64(y, 1bv32)) && ~bvsge64(~sign_extendFrom8To32(x), ~bvmul64(~sign_extendFrom8To32(2bv32), ~sign_extendFrom8To32(y)))) && ~sign_extendFrom8To32(0bv32) == q) && cond == 1bv32) && ~bvmul64(~sign_extendFrom8To32(y), ~sign_extendFrom8To32(2bv32)) == b) - 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. [2021-10-16 02:46:03,530 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480b0a95-06a8-40c8-9d31-71a9193dc09c/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...