./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/test22-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-regression/test22-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a3b319f31812cf6dfaa3cae4a89a0875c72839a3 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-regression/test22-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a3b319f31812cf6dfaa3cae4a89a0875c72839a3 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 07:57:02,855 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:57:02,857 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:57:02,892 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:57:02,892 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:57:02,894 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:57:02,896 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:57:02,898 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:57:02,900 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:57:02,902 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:57:02,903 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:57:02,905 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:57:02,905 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:57:02,907 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:57:02,908 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:57:02,910 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:57:02,911 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:57:02,912 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:57:02,915 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:57:02,917 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:57:02,919 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:57:02,921 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:57:02,923 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:57:02,924 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:57:02,928 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:57:02,928 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:57:02,929 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:57:02,930 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:57:02,930 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:57:02,932 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:57:02,932 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:57:02,933 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:57:02,934 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:57:02,935 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:57:02,936 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:57:02,937 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:57:02,938 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:57:02,938 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:57:02,939 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:57:02,940 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:57:02,941 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:57:02,942 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-13 07:57:02,967 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:57:02,968 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:57:02,969 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:57:02,969 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:57:02,969 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:57:02,970 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:57:02,970 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 07:57:02,970 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:57:02,970 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:57:02,971 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 07:57:02,971 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 07:57:02,971 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:57:02,972 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 07:57:02,972 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 07:57:02,972 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 07:57:02,973 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:57:02,980 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 07:57:02,980 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 07:57:02,980 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 07:57:02,980 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:57:02,981 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:57:02,981 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:57:02,981 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:57:02,982 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:57:02,982 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 07:57:02,982 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:57:02,983 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:57:02,983 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:57:02,983 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:57:02,984 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:57:02,984 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:57:02,984 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:57:02,985 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:57:02,985 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:57:02,985 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 07:57:02,985 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 07:57:02,986 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:57:02,987 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:57:02,988 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:57:02,988 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_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a3b319f31812cf6dfaa3cae4a89a0875c72839a3 [2021-10-13 07:57:03,246 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:57:03,272 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:57:03,276 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:57:03,277 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:57:03,278 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:57:03,279 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/ldv-regression/test22-1.c [2021-10-13 07:57:03,367 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/data/9e1922142/493a8721a8154d4a9fb81cef0c063f45/FLAG787ed28e6 [2021-10-13 07:57:03,929 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:57:03,930 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/sv-benchmarks/c/ldv-regression/test22-1.c [2021-10-13 07:57:03,942 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/data/9e1922142/493a8721a8154d4a9fb81cef0c063f45/FLAG787ed28e6 [2021-10-13 07:57:04,304 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/data/9e1922142/493a8721a8154d4a9fb81cef0c063f45 [2021-10-13 07:57:04,307 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:57:04,309 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:57:04,324 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:57:04,324 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:57:04,326 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:57:04,327 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:57:04" (1/1) ... [2021-10-13 07:57:04,329 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76bd5d2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:57:04, skipping insertion in model container [2021-10-13 07:57:04,329 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:57:04" (1/1) ... [2021-10-13 07:57:04,337 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:57:04,350 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:57:04,519 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_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/sv-benchmarks/c/ldv-regression/test22-1.c[1029,1042] [2021-10-13 07:57:04,522 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:57:04,531 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 07:57:04,548 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_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/sv-benchmarks/c/ldv-regression/test22-1.c[1029,1042] [2021-10-13 07:57:04,549 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:57:04,563 INFO L208 MainTranslator]: Completed translation [2021-10-13 07:57:04,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:57:04 WrapperNode [2021-10-13 07:57:04,564 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:57:04,565 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 07:57:04,565 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 07:57:04,565 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 07:57:04,573 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:57:04" (1/1) ... [2021-10-13 07:57:04,580 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:57:04" (1/1) ... [2021-10-13 07:57:04,603 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 07:57:04,604 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 07:57:04,604 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 07:57:04,604 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 07:57:04,616 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:57:04" (1/1) ... [2021-10-13 07:57:04,619 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:57:04" (1/1) ... [2021-10-13 07:57:04,622 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:57:04" (1/1) ... [2021-10-13 07:57:04,623 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:57:04" (1/1) ... [2021-10-13 07:57:04,631 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:57:04" (1/1) ... [2021-10-13 07:57:04,645 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:57:04" (1/1) ... [2021-10-13 07:57:04,646 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:57:04" (1/1) ... [2021-10-13 07:57:04,649 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 07:57:04,650 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 07:57:04,650 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 07:57:04,650 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 07:57:04,651 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:57:04" (1/1) ... [2021-10-13 07:57:04,658 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:57:04,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:57:04,681 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 07:57:04,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 07:57:04,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 07:57:04,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 07:57:04,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 07:57:04,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 07:57:04,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 07:57:04,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-13 07:57:05,350 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 07:57:05,350 INFO L299 CfgBuilder]: Removed 15 assume(true) statements. [2021-10-13 07:57:05,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:57:05 BoogieIcfgContainer [2021-10-13 07:57:05,352 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 07:57:05,354 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 07:57:05,354 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 07:57:05,359 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 07:57:05,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:57:04" (1/3) ... [2021-10-13 07:57:05,370 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e638dc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:57:05, skipping insertion in model container [2021-10-13 07:57:05,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:57:04" (2/3) ... [2021-10-13 07:57:05,371 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e638dc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:57:05, skipping insertion in model container [2021-10-13 07:57:05,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:57:05" (3/3) ... [2021-10-13 07:57:05,373 INFO L111 eAbstractionObserver]: Analyzing ICFG test22-1.c [2021-10-13 07:57:05,380 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 07:57:05,380 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 07:57:05,446 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 07:57:05,457 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 07:57:05,458 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 07:57:05,470 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:57:05,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-13 07:57:05,475 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:57:05,475 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-13 07:57:05,476 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:57:05,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:57:05,481 INFO L82 PathProgramCache]: Analyzing trace with hash -820905233, now seen corresponding path program 1 times [2021-10-13 07:57:05,490 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:57:05,491 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471054950] [2021-10-13 07:57:05,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:57:05,492 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:57:05,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:57:05,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:57:05,665 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:57:05,666 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471054950] [2021-10-13 07:57:05,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471054950] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:57:05,667 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:57:05,667 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 07:57:05,669 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177047085] [2021-10-13 07:57:05,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-13 07:57:05,674 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:57:05,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-13 07:57:05,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 07:57:05,690 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 10 states have internal predecessors, (14), 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 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:57:05,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:57:05,703 INFO L93 Difference]: Finished difference Result 18 states and 21 transitions. [2021-10-13 07:57:05,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 07:57:05,705 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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 6 [2021-10-13 07:57:05,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:57:05,712 INFO L225 Difference]: With dead ends: 18 [2021-10-13 07:57:05,713 INFO L226 Difference]: Without dead ends: 8 [2021-10-13 07:57:05,715 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 07:57:05,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2021-10-13 07:57:05,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2021-10-13 07:57:05,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:57:05,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2021-10-13 07:57:05,744 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2021-10-13 07:57:05,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:57:05,745 INFO L470 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2021-10-13 07:57:05,745 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:57:05,745 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2021-10-13 07:57:05,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-13 07:57:05,746 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:57:05,746 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:57:05,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 07:57:05,746 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:57:05,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:57:05,747 INFO L82 PathProgramCache]: Analyzing trace with hash 314487744, now seen corresponding path program 1 times [2021-10-13 07:57:05,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:57:05,748 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73367337] [2021-10-13 07:57:05,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:57:05,748 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:57:05,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:57:05,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:57:05,994 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:57:05,995 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73367337] [2021-10-13 07:57:05,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73367337] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:57:05,995 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:57:05,995 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 07:57:05,996 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139981265] [2021-10-13 07:57:05,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 07:57:05,998 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:57:06,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 07:57:06,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:57:06,001 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:57:06,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:57:06,086 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2021-10-13 07:57:06,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 07:57:06,087 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 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 7 [2021-10-13 07:57:06,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:57:06,087 INFO L225 Difference]: With dead ends: 14 [2021-10-13 07:57:06,087 INFO L226 Difference]: Without dead ends: 10 [2021-10-13 07:57:06,088 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 73.0ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-13 07:57:06,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2021-10-13 07:57:06,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-10-13 07:57:06,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 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) [2021-10-13 07:57:06,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2021-10-13 07:57:06,093 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 7 [2021-10-13 07:57:06,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:57:06,093 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2021-10-13 07:57:06,095 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:57:06,095 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2021-10-13 07:57:06,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 07:57:06,096 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:57:06,097 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:57:06,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 07:57:06,098 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:57:06,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:57:06,102 INFO L82 PathProgramCache]: Analyzing trace with hash 1604245819, now seen corresponding path program 1 times [2021-10-13 07:57:06,103 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:57:06,103 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687225719] [2021-10-13 07:57:06,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:57:06,105 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:57:06,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:57:06,311 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:57:06,311 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:57:06,311 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687225719] [2021-10-13 07:57:06,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687225719] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 07:57:06,312 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [522632603] [2021-10-13 07:57:06,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:57:06,313 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:57:06,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:57:06,315 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 07:57:06,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-13 07:57:06,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:57:06,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-13 07:57:06,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:57:06,918 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2021-10-13 07:57:06,964 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:57:06,965 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:57:07,066 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:57:07,066 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [522632603] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:57:07,067 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [812448451] [2021-10-13 07:57:07,096 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-10-13 07:57:07,097 INFO L166 IcfgInterpreter]: Building call graph [2021-10-13 07:57:07,108 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-13 07:57:07,113 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-13 07:57:07,114 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-13 07:57:07,162 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:07,169 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:57:07,170 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:07,170 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-10-13 07:57:07,185 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:57:07,187 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:07,189 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 92 [2021-10-13 07:57:07,213 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:57:07,218 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:07,219 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:57:07,220 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:07,221 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-10-13 07:57:07,223 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-10-13 07:57:07,225 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:57:07,226 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:07,229 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:57:07,230 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:07,231 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-10-13 07:57:07,232 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-10-13 07:57:07,235 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:57:07,236 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:07,241 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:57:07,243 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:07,245 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-10-13 07:57:07,246 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-10-13 07:57:07,261 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:57:07,262 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:07,263 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:57:07,264 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:07,265 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-10-13 07:57:07,266 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-10-13 07:57:07,266 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:57:07,267 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:07,269 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:57:07,270 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:07,272 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-10-13 07:57:07,273 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 92 [2021-10-13 07:57:07,274 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:57:07,275 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:07,280 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 123 [2021-10-13 07:57:07,287 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:57:07,288 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:07,290 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-10-13 07:57:07,296 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:57:07,298 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:07,301 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-10-13 07:57:07,319 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 411 [2021-10-13 07:57:07,619 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-13 07:57:07,620 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:07,620 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:07,621 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:07,621 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:07,622 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-13 07:57:07,679 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-13 07:57:07,679 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:07,680 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:07,680 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:07,681 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:07,681 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-13 07:57:07,743 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-13 07:57:07,744 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:07,745 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:07,745 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:07,746 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:07,746 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-13 07:57:07,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:07,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:07,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:07,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:07,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:07,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:07,985 INFO L244 Elim1Store]: Index analysis took 172 ms [2021-10-13 07:57:08,047 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 67 [2021-10-13 07:57:08,048 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:08,054 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-13 07:57:08,055 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:08,057 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-13 07:57:08,058 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-10-13 07:57:08,112 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-13 07:57:08,113 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:08,113 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:08,114 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:08,115 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:08,115 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-10-13 07:57:08,156 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-13 07:57:08,157 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:08,158 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:08,158 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:08,159 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:08,159 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-10-13 07:57:08,203 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-13 07:57:08,203 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:08,204 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:08,205 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:08,205 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:08,205 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-10-13 07:57:08,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:08,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:08,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:08,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:08,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:08,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:08,516 INFO L244 Elim1Store]: Index analysis took 263 ms [2021-10-13 07:57:08,626 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 67 [2021-10-13 07:57:08,628 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:08,633 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-13 07:57:08,634 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:08,637 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-13 07:57:08,638 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-10-13 07:57:08,686 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-13 07:57:08,687 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:08,688 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:08,688 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:08,689 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:08,689 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-10-13 07:57:08,734 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-13 07:57:08,735 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:08,735 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:08,736 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:08,736 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:08,736 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-10-13 07:57:08,784 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-13 07:57:08,784 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:08,785 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:08,785 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:08,785 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:08,786 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-10-13 07:57:08,819 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-13 07:57:08,819 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:08,820 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:08,820 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:08,821 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:08,821 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-10-13 07:57:08,853 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-13 07:57:08,854 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:08,854 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:08,854 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:08,855 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:08,855 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-10-13 07:57:08,887 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-13 07:57:08,888 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:08,888 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:08,888 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:08,889 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:08,889 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-10-13 07:57:08,920 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-13 07:57:08,920 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:08,921 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:08,921 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:08,921 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:08,922 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-10-13 07:57:08,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:08,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:08,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:08,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:08,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:08,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:09,211 INFO L244 Elim1Store]: Index analysis took 249 ms [2021-10-13 07:57:09,300 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 67 [2021-10-13 07:57:09,300 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:09,306 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-13 07:57:09,307 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:09,307 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-13 07:57:09,308 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-10-13 07:57:09,339 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-13 07:57:09,340 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:09,340 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:09,341 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:09,341 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:09,341 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2021-10-13 07:57:09,380 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-13 07:57:09,380 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:09,381 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:09,381 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:09,382 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:09,382 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2021-10-13 07:57:09,412 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-13 07:57:09,412 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:09,413 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:09,413 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:09,414 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:09,414 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2021-10-13 07:57:09,443 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-13 07:57:09,444 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:09,444 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:09,444 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:09,445 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:09,445 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2021-10-13 07:57:09,474 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-13 07:57:09,474 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:09,475 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:09,475 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:09,476 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:09,476 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2021-10-13 07:57:09,506 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-13 07:57:09,506 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:09,507 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:09,507 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:09,508 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:09,508 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2021-10-13 07:57:09,535 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-13 07:57:09,536 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:09,536 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:09,536 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:09,537 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:09,537 INFO L550 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2021-10-13 07:57:09,566 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-13 07:57:09,566 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:09,567 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:09,567 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:09,568 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:09,568 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2021-10-13 07:57:09,597 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-13 07:57:09,597 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:09,599 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:09,599 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:09,600 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:09,600 INFO L550 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2021-10-13 07:57:09,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:09,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:09,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:09,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:09,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:09,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:09,800 INFO L244 Elim1Store]: Index analysis took 152 ms [2021-10-13 07:57:09,862 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 67 [2021-10-13 07:57:09,863 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:09,868 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-13 07:57:09,868 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:09,869 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-13 07:57:09,869 INFO L550 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2021-10-13 07:57:09,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:09,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:09,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:09,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:09,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:09,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:10,009 INFO L244 Elim1Store]: Index analysis took 107 ms [2021-10-13 07:57:10,062 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 67 [2021-10-13 07:57:10,063 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:10,072 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-13 07:57:10,075 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:10,076 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-13 07:57:10,077 INFO L550 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2021-10-13 07:57:10,104 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-13 07:57:10,105 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:10,106 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:10,107 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:10,107 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:10,107 INFO L550 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2021-10-13 07:57:10,134 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-13 07:57:10,134 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:10,135 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:10,135 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:10,135 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:10,136 INFO L550 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2021-10-13 07:57:10,162 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-13 07:57:10,162 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:10,163 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:10,163 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:10,164 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:10,164 INFO L550 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2021-10-13 07:57:10,190 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-13 07:57:10,191 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:10,191 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:10,192 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:10,192 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:10,192 INFO L550 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2021-10-13 07:57:10,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:10,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:10,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:10,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:10,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:10,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:10,348 INFO L244 Elim1Store]: Index analysis took 125 ms [2021-10-13 07:57:10,398 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 67 [2021-10-13 07:57:10,399 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:10,403 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-13 07:57:10,404 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:10,404 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-13 07:57:10,405 INFO L550 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2021-10-13 07:57:10,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:10,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:10,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:10,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:10,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:10,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:10,693 INFO L244 Elim1Store]: Index analysis took 246 ms [2021-10-13 07:57:10,771 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 67 [2021-10-13 07:57:10,772 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:10,789 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-13 07:57:10,792 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:10,792 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-13 07:57:10,793 INFO L550 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts. [2021-10-13 07:57:10,832 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-13 07:57:10,833 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:10,833 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:10,834 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:10,834 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:10,834 INFO L550 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts. [2021-10-13 07:57:10,861 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-13 07:57:10,862 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:10,862 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:10,863 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:10,863 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:10,863 INFO L550 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts. [2021-10-13 07:57:10,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:10,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:10,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:10,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:10,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:10,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:11,019 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 67 [2021-10-13 07:57:11,022 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:11,027 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-13 07:57:11,028 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:11,028 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-13 07:57:11,029 INFO L550 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts. [2021-10-13 07:57:11,053 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-13 07:57:11,054 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:11,054 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:11,055 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:11,055 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:11,056 INFO L550 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 1 xjuncts. [2021-10-13 07:57:11,081 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-13 07:57:11,082 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:11,082 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:11,083 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:11,083 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:11,083 INFO L550 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 1 xjuncts. [2021-10-13 07:57:11,108 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-13 07:57:11,109 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:11,109 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:11,110 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:11,110 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:11,111 INFO L550 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 1 xjuncts. [2021-10-13 07:57:11,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:11,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:11,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:11,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:11,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:11,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:11,256 INFO L244 Elim1Store]: Index analysis took 116 ms [2021-10-13 07:57:11,297 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 67 [2021-10-13 07:57:11,298 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:11,304 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-13 07:57:11,305 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:11,305 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-13 07:57:11,305 INFO L550 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2021-10-13 07:57:11,329 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-13 07:57:11,329 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:11,330 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:11,330 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:11,337 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:11,337 INFO L550 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 1 xjuncts. [2021-10-13 07:57:11,375 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-13 07:57:11,376 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:11,376 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:11,376 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:11,377 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:11,377 INFO L550 ElimStorePlain]: Start of recursive call 43: End of recursive call: and 1 xjuncts. [2021-10-13 07:57:11,399 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-13 07:57:11,399 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:11,400 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:11,400 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:11,400 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:11,400 INFO L550 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 1 xjuncts. [2021-10-13 07:57:11,421 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-13 07:57:11,421 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:11,421 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:11,422 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:11,426 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:11,426 INFO L550 ElimStorePlain]: Start of recursive call 45: End of recursive call: and 1 xjuncts. [2021-10-13 07:57:11,446 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-13 07:57:11,447 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:11,447 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:11,447 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:11,448 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:11,448 INFO L550 ElimStorePlain]: Start of recursive call 46: End of recursive call: and 1 xjuncts. [2021-10-13 07:57:11,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:11,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:11,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:11,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:11,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:11,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:11,592 INFO L244 Elim1Store]: Index analysis took 117 ms [2021-10-13 07:57:11,636 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 67 [2021-10-13 07:57:11,638 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:11,641 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-13 07:57:11,643 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:11,643 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-13 07:57:11,643 INFO L550 ElimStorePlain]: Start of recursive call 47: End of recursive call: and 1 xjuncts. [2021-10-13 07:57:11,660 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-13 07:57:11,660 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:11,661 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:11,661 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:11,661 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:11,661 INFO L550 ElimStorePlain]: Start of recursive call 48: End of recursive call: and 1 xjuncts. [2021-10-13 07:57:11,682 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-13 07:57:11,682 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:11,682 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:11,683 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:11,683 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:11,683 INFO L550 ElimStorePlain]: Start of recursive call 49: End of recursive call: and 1 xjuncts. [2021-10-13 07:57:11,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:11,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:11,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:11,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:11,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:11,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:11,905 INFO L244 Elim1Store]: Index analysis took 191 ms [2021-10-13 07:57:11,989 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 67 [2021-10-13 07:57:11,990 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:11,994 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-13 07:57:11,995 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:11,996 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-13 07:57:11,997 INFO L550 ElimStorePlain]: Start of recursive call 50: End of recursive call: and 1 xjuncts. [2021-10-13 07:57:12,018 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-13 07:57:12,019 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:12,019 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:12,019 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:12,020 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:12,020 INFO L550 ElimStorePlain]: Start of recursive call 51: End of recursive call: and 1 xjuncts. [2021-10-13 07:57:12,038 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-13 07:57:12,039 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:12,039 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:12,039 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:12,040 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:12,040 INFO L550 ElimStorePlain]: Start of recursive call 52: End of recursive call: and 1 xjuncts. [2021-10-13 07:57:12,071 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-13 07:57:12,071 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:12,071 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:12,072 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:12,072 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:12,072 INFO L550 ElimStorePlain]: Start of recursive call 53: End of recursive call: and 1 xjuncts. [2021-10-13 07:57:12,089 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-13 07:57:12,089 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:12,090 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:12,090 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:12,090 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:12,090 INFO L550 ElimStorePlain]: Start of recursive call 54: End of recursive call: and 1 xjuncts. [2021-10-13 07:57:12,107 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-13 07:57:12,108 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:12,108 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:12,108 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:12,109 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:12,109 INFO L550 ElimStorePlain]: Start of recursive call 55: End of recursive call: and 1 xjuncts. [2021-10-13 07:57:12,126 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-13 07:57:12,127 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:12,127 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:12,127 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:12,128 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:57:12,128 INFO L550 ElimStorePlain]: Start of recursive call 56: End of recursive call: and 1 xjuncts. [2021-10-13 07:57:12,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:12,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:12,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:12,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:12,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:12,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:12,198 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 67 [2021-10-13 07:57:12,199 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:12,208 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-13 07:57:12,209 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:12,210 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-13 07:57:12,210 INFO L550 ElimStorePlain]: Start of recursive call 57: End of recursive call: and 1 xjuncts. [2021-10-13 07:57:12,214 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:57:12,514 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:12,575 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:57:12,646 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3669 [2021-10-13 07:57:12,649 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 12 xjuncts. [2021-10-13 07:57:12,650 INFO L247 ElimStorePlain]: Needed 57 recursive calls to eliminate 5 variables, input treesize:18953, output treesize:3669 [2021-10-13 07:57:12,690 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-13 07:57:12,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:57:12,866 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: No corresponding IProgramVar for |v_#valid_24| at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:97) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:83) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.constructTermVarsProc(BasicPredicateFactory.java:92) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.newPredicate(BasicPredicateFactory.java:81) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.predicate(SymbolicTools.java:174) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.post(SymbolicTools.java:116) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretInternal(DagInterpreter.java:227) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:209) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:608) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:53) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:392) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-10-13 07:57:12,869 INFO L168 Benchmark]: Toolchain (without parser) took 8559.21 ms. Allocated memory was 98.6 MB in the beginning and 125.8 MB in the end (delta: 27.3 MB). Free memory was 66.5 MB in the beginning and 42.3 MB in the end (delta: 24.2 MB). Peak memory consumption was 66.4 MB. Max. memory is 16.1 GB. [2021-10-13 07:57:12,869 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 98.6 MB. Free memory was 51.8 MB in the beginning and 51.7 MB in the end (delta: 44.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:57:12,869 INFO L168 Benchmark]: CACSL2BoogieTranslator took 240.05 ms. Allocated memory is still 98.6 MB. Free memory was 66.4 MB in the beginning and 73.8 MB in the end (delta: -7.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 07:57:12,870 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.48 ms. Allocated memory is still 98.6 MB. Free memory was 73.8 MB in the beginning and 72.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:57:12,870 INFO L168 Benchmark]: Boogie Preprocessor took 44.95 ms. Allocated memory is still 98.6 MB. Free memory was 72.3 MB in the beginning and 70.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:57:12,870 INFO L168 Benchmark]: RCFGBuilder took 703.07 ms. Allocated memory was 98.6 MB in the beginning and 125.8 MB in the end (delta: 27.3 MB). Free memory was 70.9 MB in the beginning and 101.1 MB in the end (delta: -30.2 MB). Peak memory consumption was 27.8 MB. Max. memory is 16.1 GB. [2021-10-13 07:57:12,871 INFO L168 Benchmark]: TraceAbstraction took 7513.93 ms. Allocated memory is still 125.8 MB. Free memory was 100.6 MB in the beginning and 42.3 MB in the end (delta: 58.4 MB). Peak memory consumption was 73.2 MB. Max. memory is 16.1 GB. [2021-10-13 07:57:12,872 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 98.6 MB. Free memory was 51.8 MB in the beginning and 51.7 MB in the end (delta: 44.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 240.05 ms. Allocated memory is still 98.6 MB. Free memory was 66.4 MB in the beginning and 73.8 MB in the end (delta: -7.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 38.48 ms. Allocated memory is still 98.6 MB. Free memory was 73.8 MB in the beginning and 72.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 44.95 ms. Allocated memory is still 98.6 MB. Free memory was 72.3 MB in the beginning and 70.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 703.07 ms. Allocated memory was 98.6 MB in the beginning and 125.8 MB in the end (delta: 27.3 MB). Free memory was 70.9 MB in the beginning and 101.1 MB in the end (delta: -30.2 MB). Peak memory consumption was 27.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 7513.93 ms. Allocated memory is still 125.8 MB. Free memory was 100.6 MB in the beginning and 42.3 MB in the end (delta: 58.4 MB). Peak memory consumption was 73.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: No corresponding IProgramVar for |v_#valid_24| de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: No corresponding IProgramVar for |v_#valid_24|: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:97) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-10-13 07:57:12,923 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/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-4e77c04 [2021-10-13 07:57:15,364 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:57:15,367 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:57:15,416 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:57:15,417 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:57:15,422 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:57:15,424 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:57:15,431 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:57:15,435 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:57:15,442 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:57:15,443 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:57:15,445 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:57:15,446 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:57:15,448 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:57:15,450 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:57:15,452 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:57:15,456 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:57:15,457 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:57:15,459 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:57:15,465 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:57:15,467 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:57:15,469 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:57:15,471 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:57:15,474 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:57:15,481 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:57:15,481 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:57:15,481 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:57:15,484 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:57:15,484 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:57:15,485 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:57:15,486 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:57:15,487 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:57:15,489 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:57:15,489 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:57:15,491 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:57:15,491 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:57:15,492 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:57:15,492 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:57:15,493 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:57:15,495 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:57:15,496 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:57:15,501 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-13 07:57:15,551 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:57:15,551 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:57:15,553 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:57:15,553 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:57:15,553 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:57:15,553 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:57:15,554 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:57:15,554 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:57:15,554 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:57:15,556 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:57:15,557 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 07:57:15,557 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 07:57:15,557 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:57:15,557 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:57:15,558 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:57:15,558 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:57:15,558 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:57:15,558 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 07:57:15,559 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 07:57:15,559 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 07:57:15,559 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:57:15,559 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:57:15,559 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:57:15,560 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:57:15,560 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 07:57:15,560 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:57:15,560 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:57:15,561 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:57:15,561 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:57:15,561 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:57:15,561 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-13 07:57:15,561 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 07:57:15,562 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:57:15,562 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:57:15,562 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:57:15,563 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_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a3b319f31812cf6dfaa3cae4a89a0875c72839a3 [2021-10-13 07:57:15,938 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:57:15,959 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:57:15,962 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:57:15,963 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:57:15,964 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:57:15,965 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/ldv-regression/test22-1.c [2021-10-13 07:57:16,033 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/data/b0e7e69f9/e9be470cab0d4a998979b19ba3b3b01c/FLAG875c6c472 [2021-10-13 07:57:16,502 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:57:16,503 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/sv-benchmarks/c/ldv-regression/test22-1.c [2021-10-13 07:57:16,509 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/data/b0e7e69f9/e9be470cab0d4a998979b19ba3b3b01c/FLAG875c6c472 [2021-10-13 07:57:16,892 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/data/b0e7e69f9/e9be470cab0d4a998979b19ba3b3b01c [2021-10-13 07:57:16,894 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:57:16,896 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:57:16,897 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:57:16,897 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:57:16,903 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:57:16,904 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:57:16" (1/1) ... [2021-10-13 07:57:16,905 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63ccbd2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:57:16, skipping insertion in model container [2021-10-13 07:57:16,906 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:57:16" (1/1) ... [2021-10-13 07:57:16,926 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:57:16,940 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:57:17,107 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_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/sv-benchmarks/c/ldv-regression/test22-1.c[1029,1042] [2021-10-13 07:57:17,111 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:57:17,131 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 07:57:17,170 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_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/sv-benchmarks/c/ldv-regression/test22-1.c[1029,1042] [2021-10-13 07:57:17,174 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:57:17,252 INFO L208 MainTranslator]: Completed translation [2021-10-13 07:57:17,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:57:17 WrapperNode [2021-10-13 07:57:17,253 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:57:17,254 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 07:57:17,254 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 07:57:17,254 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 07:57:17,265 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:57:17" (1/1) ... [2021-10-13 07:57:17,285 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:57:17" (1/1) ... [2021-10-13 07:57:17,329 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 07:57:17,329 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 07:57:17,330 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 07:57:17,330 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 07:57:17,341 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:57:17" (1/1) ... [2021-10-13 07:57:17,341 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:57:17" (1/1) ... [2021-10-13 07:57:17,349 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:57:17" (1/1) ... [2021-10-13 07:57:17,350 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:57:17" (1/1) ... [2021-10-13 07:57:17,373 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:57:17" (1/1) ... [2021-10-13 07:57:17,377 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:57:17" (1/1) ... [2021-10-13 07:57:17,378 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:57:17" (1/1) ... [2021-10-13 07:57:17,385 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 07:57:17,387 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 07:57:17,388 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 07:57:17,388 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 07:57:17,389 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:57:17" (1/1) ... [2021-10-13 07:57:17,396 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:57:17,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:57:17,421 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 07:57:17,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 07:57:17,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-13 07:57:17,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-10-13 07:57:17,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 07:57:17,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-13 07:57:17,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 07:57:17,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 07:57:17,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-13 07:57:17,910 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 07:57:17,910 INFO L299 CfgBuilder]: Removed 15 assume(true) statements. [2021-10-13 07:57:17,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:57:17 BoogieIcfgContainer [2021-10-13 07:57:17,912 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 07:57:17,914 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 07:57:17,914 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 07:57:17,917 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 07:57:17,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:57:16" (1/3) ... [2021-10-13 07:57:17,934 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@473181a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:57:17, skipping insertion in model container [2021-10-13 07:57:17,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:57:17" (2/3) ... [2021-10-13 07:57:17,935 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@473181a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:57:17, skipping insertion in model container [2021-10-13 07:57:17,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:57:17" (3/3) ... [2021-10-13 07:57:17,937 INFO L111 eAbstractionObserver]: Analyzing ICFG test22-1.c [2021-10-13 07:57:17,943 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 07:57:17,943 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 07:57:18,010 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 07:57:18,022 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 07:57:18,023 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 07:57:18,040 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 23 states have (on average 1.391304347826087) internal successors, (32), 24 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:57:18,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-13 07:57:18,057 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:57:18,058 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:57:18,059 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:57:18,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:57:18,065 INFO L82 PathProgramCache]: Analyzing trace with hash 164664103, now seen corresponding path program 1 times [2021-10-13 07:57:18,079 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:57:18,081 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [869666310] [2021-10-13 07:57:18,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:57:18,082 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:57:18,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:57:18,089 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:57:18,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 07:57:18,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:57:18,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-13 07:57:18,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:57:18,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:57:18,392 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:57:18,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:57:18,475 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:57:18,475 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [869666310] [2021-10-13 07:57:18,477 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [869666310] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:57:18,477 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:57:18,478 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-13 07:57:18,479 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868101691] [2021-10-13 07:57:18,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-13 07:57:18,488 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:57:18,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-13 07:57:18,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 07:57:18,506 INFO L87 Difference]: Start difference. First operand has 25 states, 23 states have (on average 1.391304347826087) internal successors, (32), 24 states have internal predecessors, (32), 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 9.5) internal successors, (19), 2 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) [2021-10-13 07:57:18,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:57:18,523 INFO L93 Difference]: Finished difference Result 34 states and 41 transitions. [2021-10-13 07:57:18,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 07:57:18,525 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 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 19 [2021-10-13 07:57:18,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:57:18,533 INFO L225 Difference]: With dead ends: 34 [2021-10-13 07:57:18,533 INFO L226 Difference]: Without dead ends: 21 [2021-10-13 07:57:18,536 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 07:57:18,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-10-13 07:57:18,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2021-10-13 07:57:18,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.25) internal successors, (25), 20 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:57:18,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2021-10-13 07:57:18,583 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 19 [2021-10-13 07:57:18,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:57:18,584 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2021-10-13 07:57:18,584 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 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) [2021-10-13 07:57:18,584 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2021-10-13 07:57:18,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-13 07:57:18,586 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:57:18,586 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:57:18,603 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-13 07:57:18,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:57:18,801 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:57:18,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:57:18,805 INFO L82 PathProgramCache]: Analyzing trace with hash 603612068, now seen corresponding path program 1 times [2021-10-13 07:57:18,806 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:57:18,807 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1138744446] [2021-10-13 07:57:18,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:57:18,808 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:57:18,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:57:18,810 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:57:18,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-13 07:57:18,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:57:18,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 20 conjunts are in the unsatisfiable core [2021-10-13 07:57:18,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:57:19,371 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2021-10-13 07:57:19,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:57:19,444 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:57:19,668 INFO L354 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2021-10-13 07:57:19,668 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 17 [2021-10-13 07:57:19,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:57:19,770 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:57:19,770 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1138744446] [2021-10-13 07:57:19,771 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1138744446] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:57:19,771 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:57:19,771 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 14 [2021-10-13 07:57:19,771 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101751240] [2021-10-13 07:57:19,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-13 07:57:19,773 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:57:19,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-13 07:57:19,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2021-10-13 07:57:19,775 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand has 14 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 14 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) [2021-10-13 07:57:23,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:57:23,001 INFO L93 Difference]: Finished difference Result 142 states and 161 transitions. [2021-10-13 07:57:23,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-10-13 07:57:23,002 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 14 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 20 [2021-10-13 07:57:23,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:57:23,005 INFO L225 Difference]: With dead ends: 142 [2021-10-13 07:57:23,005 INFO L226 Difference]: Without dead ends: 137 [2021-10-13 07:57:23,009 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 346 ImplicationChecksByTransitivity, 2899.4ms TimeCoverageRelationStatistics Valid=365, Invalid=1357, Unknown=0, NotChecked=0, Total=1722 [2021-10-13 07:57:23,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2021-10-13 07:57:23,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 36. [2021-10-13 07:57:23,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.2285714285714286) internal successors, (43), 35 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) [2021-10-13 07:57:23,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 43 transitions. [2021-10-13 07:57:23,021 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 43 transitions. Word has length 20 [2021-10-13 07:57:23,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:57:23,022 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 43 transitions. [2021-10-13 07:57:23,022 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 14 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) [2021-10-13 07:57:23,022 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 43 transitions. [2021-10-13 07:57:23,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-13 07:57:23,023 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:57:23,024 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:57:23,040 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-13 07:57:23,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:57:23,236 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:57:23,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:57:23,237 INFO L82 PathProgramCache]: Analyzing trace with hash -407505182, now seen corresponding path program 1 times [2021-10-13 07:57:23,237 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:57:23,238 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [63880923] [2021-10-13 07:57:23,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:57:23,238 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:57:23,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:57:23,243 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:57:23,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-13 07:57:23,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:57:23,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-13 07:57:23,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:57:23,400 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 157 treesize of output 155 [2021-10-13 07:57:23,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:57:23,637 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:57:23,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:57:23,724 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:57:23,725 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [63880923] [2021-10-13 07:57:23,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [63880923] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:57:23,726 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:57:23,727 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 9 [2021-10-13 07:57:23,730 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038196070] [2021-10-13 07:57:23,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-13 07:57:23,732 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:57:23,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-13 07:57:23,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-10-13 07:57:23,734 INFO L87 Difference]: Start difference. First operand 36 states and 43 transitions. Second operand has 10 states, 10 states have (on average 2.0) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:57:24,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:57:24,354 INFO L93 Difference]: Finished difference Result 95 states and 107 transitions. [2021-10-13 07:57:24,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-13 07:57:24,355 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-10-13 07:57:24,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:57:24,356 INFO L225 Difference]: With dead ends: 95 [2021-10-13 07:57:24,356 INFO L226 Difference]: Without dead ends: 70 [2021-10-13 07:57:24,357 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 412.1ms TimeCoverageRelationStatistics Valid=158, Invalid=598, Unknown=0, NotChecked=0, Total=756 [2021-10-13 07:57:24,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2021-10-13 07:57:24,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 35. [2021-10-13 07:57:24,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.1470588235294117) internal successors, (39), 34 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:57:24,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2021-10-13 07:57:24,364 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 20 [2021-10-13 07:57:24,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:57:24,365 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2021-10-13 07:57:24,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:57:24,365 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2021-10-13 07:57:24,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-13 07:57:24,366 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:57:24,366 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:57:24,382 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-13 07:57:24,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:57:24,567 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:57:24,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:57:24,567 INFO L82 PathProgramCache]: Analyzing trace with hash -984735834, now seen corresponding path program 1 times [2021-10-13 07:57:24,568 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:57:24,568 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [301202660] [2021-10-13 07:57:24,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:57:24,568 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:57:24,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:57:24,570 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:57:24,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-13 07:57:24,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:57:24,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-13 07:57:24,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:57:24,716 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 334 treesize of output 326 [2021-10-13 07:57:24,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:57:24,961 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:57:25,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:57:25,036 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:57:25,036 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [301202660] [2021-10-13 07:57:25,037 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [301202660] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:57:25,037 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:57:25,037 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 9 [2021-10-13 07:57:25,037 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777476355] [2021-10-13 07:57:25,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-13 07:57:25,038 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:57:25,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-13 07:57:25,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-10-13 07:57:25,039 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand has 10 states, 10 states have (on average 2.0) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:57:25,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:57:25,565 INFO L93 Difference]: Finished difference Result 85 states and 90 transitions. [2021-10-13 07:57:25,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-13 07:57:25,566 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-10-13 07:57:25,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:57:25,567 INFO L225 Difference]: With dead ends: 85 [2021-10-13 07:57:25,567 INFO L226 Difference]: Without dead ends: 68 [2021-10-13 07:57:25,568 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 306.7ms TimeCoverageRelationStatistics Valid=122, Invalid=430, Unknown=0, NotChecked=0, Total=552 [2021-10-13 07:57:25,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-10-13 07:57:25,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 35. [2021-10-13 07:57:25,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.1176470588235294) internal successors, (38), 34 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:57:25,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2021-10-13 07:57:25,576 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 20 [2021-10-13 07:57:25,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:57:25,577 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2021-10-13 07:57:25,577 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:57:25,577 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2021-10-13 07:57:25,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-13 07:57:25,578 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:57:25,578 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:57:25,597 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-13 07:57:25,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:57:25,790 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:57:25,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:57:25,791 INFO L82 PathProgramCache]: Analyzing trace with hash -1995853084, now seen corresponding path program 1 times [2021-10-13 07:57:25,791 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:57:25,791 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2036568615] [2021-10-13 07:57:25,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:57:25,792 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:57:25,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:57:25,793 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:57:25,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-13 07:57:25,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:57:25,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 20 conjunts are in the unsatisfiable core [2021-10-13 07:57:25,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:57:26,227 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2021-10-13 07:57:26,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:57:26,290 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:57:26,490 INFO L354 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2021-10-13 07:57:26,491 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 17 [2021-10-13 07:57:26,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:57:26,590 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:57:26,591 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2036568615] [2021-10-13 07:57:26,591 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2036568615] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:57:26,591 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:57:26,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 14 [2021-10-13 07:57:26,591 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991245304] [2021-10-13 07:57:26,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-13 07:57:26,592 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:57:26,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-13 07:57:26,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2021-10-13 07:57:26,593 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand has 14 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 14 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) [2021-10-13 07:57:28,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:57:28,701 INFO L93 Difference]: Finished difference Result 81 states and 87 transitions. [2021-10-13 07:57:28,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-13 07:57:28,703 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 14 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 20 [2021-10-13 07:57:28,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:57:28,704 INFO L225 Difference]: With dead ends: 81 [2021-10-13 07:57:28,704 INFO L226 Difference]: Without dead ends: 76 [2021-10-13 07:57:28,705 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 1800.0ms TimeCoverageRelationStatistics Valid=211, Invalid=719, Unknown=0, NotChecked=0, Total=930 [2021-10-13 07:57:28,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2021-10-13 07:57:28,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 28. [2021-10-13 07:57:28,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.1111111111111112) internal successors, (30), 27 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:57:28,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2021-10-13 07:57:28,712 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 20 [2021-10-13 07:57:28,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:57:28,712 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2021-10-13 07:57:28,712 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 14 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) [2021-10-13 07:57:28,713 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2021-10-13 07:57:28,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-13 07:57:28,713 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:57:28,714 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:57:28,738 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-13 07:57:28,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:57:28,925 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:57:28,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:57:28,925 INFO L82 PathProgramCache]: Analyzing trace with hash 1048225454, now seen corresponding path program 1 times [2021-10-13 07:57:28,926 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:57:28,926 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1358327715] [2021-10-13 07:57:28,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:57:28,926 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:57:28,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:57:28,927 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:57:28,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-13 07:57:29,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:57:29,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 24 conjunts are in the unsatisfiable core [2021-10-13 07:57:29,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:57:29,581 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2021-10-13 07:57:29,649 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:57:29,650 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:57:30,287 INFO L354 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2021-10-13 07:57:30,287 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 23 [2021-10-13 07:57:30,373 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:57:30,373 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:57:30,374 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1358327715] [2021-10-13 07:57:30,374 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1358327715] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:57:30,374 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [115944999] [2021-10-13 07:57:30,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:57:30,374 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 07:57:30,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 07:57:30,379 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 07:57:30,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2021-10-13 07:57:30,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:57:30,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 25 conjunts are in the unsatisfiable core [2021-10-13 07:57:30,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:57:31,594 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2021-10-13 07:57:31,649 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:57:31,649 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:57:31,819 INFO L354 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2021-10-13 07:57:31,820 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 23 [2021-10-13 07:57:31,898 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:57:31,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [115944999] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:57:31,898 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1685911662] [2021-10-13 07:57:31,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:57:31,898 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:57:31,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:57:31,901 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 07:57:31,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-13 07:57:32,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:57:32,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 24 conjunts are in the unsatisfiable core [2021-10-13 07:57:32,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:57:32,354 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2021-10-13 07:57:32,390 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:57:32,390 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:57:32,521 INFO L354 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2021-10-13 07:57:32,522 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 23 [2021-10-13 07:57:32,592 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:57:32,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1685911662] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:57:32,593 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-13 07:57:32,593 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14, 14, 14, 14] total 32 [2021-10-13 07:57:32,593 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694647539] [2021-10-13 07:57:32,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-10-13 07:57:32,594 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:57:32,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-10-13 07:57:32,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=872, Unknown=0, NotChecked=0, Total=992 [2021-10-13 07:57:32,596 INFO L87 Difference]: Start difference. First operand 28 states and 30 transitions. Second operand has 32 states, 32 states have (on average 1.59375) internal successors, (51), 32 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:57:40,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:57:40,137 INFO L93 Difference]: Finished difference Result 101 states and 113 transitions. [2021-10-13 07:57:40,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-10-13 07:57:40,138 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 1.59375) internal successors, (51), 32 states have internal predecessors, (51), 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 24 [2021-10-13 07:57:40,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:57:40,139 INFO L225 Difference]: With dead ends: 101 [2021-10-13 07:57:40,139 INFO L226 Difference]: Without dead ends: 96 [2021-10-13 07:57:40,142 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 107 SyntacticMatches, 1 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1447 ImplicationChecksByTransitivity, 7664.4ms TimeCoverageRelationStatistics Valid=1033, Invalid=4517, Unknown=0, NotChecked=0, Total=5550 [2021-10-13 07:57:40,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2021-10-13 07:57:40,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 43. [2021-10-13 07:57:40,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 42 states have (on average 1.0952380952380953) internal successors, (46), 42 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:57:40,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 46 transitions. [2021-10-13 07:57:40,156 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 46 transitions. Word has length 24 [2021-10-13 07:57:40,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:57:40,156 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 46 transitions. [2021-10-13 07:57:40,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 1.59375) internal successors, (51), 32 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:57:40,157 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 46 transitions. [2021-10-13 07:57:40,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-13 07:57:40,158 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:57:40,158 INFO L512 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:57:40,193 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-13 07:57:40,375 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2021-10-13 07:57:40,581 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-10-13 07:57:40,774 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:57:40,774 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:57:40,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:57:40,775 INFO L82 PathProgramCache]: Analyzing trace with hash 1209026451, now seen corresponding path program 1 times [2021-10-13 07:57:40,775 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:57:40,775 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1172117848] [2021-10-13 07:57:40,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:57:40,775 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:57:40,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:57:40,776 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:57:40,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-13 07:57:40,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:57:40,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 25 conjunts are in the unsatisfiable core [2021-10-13 07:57:40,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:57:41,505 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2021-10-13 07:57:41,592 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:57:41,592 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:57:42,399 INFO L354 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2021-10-13 07:57:42,399 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 23 [2021-10-13 07:57:42,489 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:57:42,490 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:57:42,490 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1172117848] [2021-10-13 07:57:42,490 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1172117848] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:57:42,490 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [724207080] [2021-10-13 07:57:42,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:57:42,490 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 07:57:42,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 07:57:42,506 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 07:57:42,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2021-10-13 07:57:42,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:57:42,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 27 conjunts are in the unsatisfiable core [2021-10-13 07:57:42,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:57:42,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:57:43,005 INFO L354 Elim1Store]: treesize reduction 135, result has 27.4 percent of original size [2021-10-13 07:57:43,006 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 42 treesize of output 67 [2021-10-13 07:57:44,036 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2021-10-13 07:57:44,065 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:57:44,065 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:57:45,264 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:57:45,264 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [724207080] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:57:45,264 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1797181047] [2021-10-13 07:57:45,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:57:45,264 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:57:45,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:57:45,278 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 07:57:45,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-10-13 07:57:45,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:57:45,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 26 conjunts are in the unsatisfiable core [2021-10-13 07:57:45,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:57:46,205 INFO L354 Elim1Store]: treesize reduction 155, result has 27.2 percent of original size [2021-10-13 07:57:46,205 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 67 [2021-10-13 07:57:46,464 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2021-10-13 07:57:46,495 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:57:46,495 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:57:46,865 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:57:46,866 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1797181047] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:57:46,866 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-13 07:57:46,866 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15, 15, 15, 15] total 41 [2021-10-13 07:57:46,866 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241447353] [2021-10-13 07:57:46,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2021-10-13 07:57:46,867 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:57:46,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-10-13 07:57:46,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=1469, Unknown=0, NotChecked=0, Total=1640 [2021-10-13 07:57:46,869 INFO L87 Difference]: Start difference. First operand 43 states and 46 transitions. Second operand has 41 states, 41 states have (on average 1.6341463414634145) internal successors, (67), 41 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:01,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:58:01,855 INFO L93 Difference]: Finished difference Result 121 states and 133 transitions. [2021-10-13 07:58:01,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2021-10-13 07:58:01,861 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 1.6341463414634145) internal successors, (67), 41 states have internal predecessors, (67), 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 [2021-10-13 07:58:01,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:58:01,863 INFO L225 Difference]: With dead ends: 121 [2021-10-13 07:58:01,863 INFO L226 Difference]: Without dead ends: 116 [2021-10-13 07:58:01,866 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2354 ImplicationChecksByTransitivity, 14677.5ms TimeCoverageRelationStatistics Valid=1689, Invalid=7623, Unknown=0, NotChecked=0, Total=9312 [2021-10-13 07:58:01,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2021-10-13 07:58:01,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 47. [2021-10-13 07:58:01,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 46 states have (on average 1.0869565217391304) internal successors, (50), 46 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:01,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 50 transitions. [2021-10-13 07:58:01,878 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 50 transitions. Word has length 26 [2021-10-13 07:58:01,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:58:01,878 INFO L470 AbstractCegarLoop]: Abstraction has 47 states and 50 transitions. [2021-10-13 07:58:01,879 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 1.6341463414634145) internal successors, (67), 41 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:01,879 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 50 transitions. [2021-10-13 07:58:01,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-13 07:58:01,880 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:58:01,880 INFO L512 BasicCegarLoop]: trace histogram [7, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:58:01,919 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-10-13 07:58:02,119 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-13 07:58:02,303 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2021-10-13 07:58:02,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt [2021-10-13 07:58:02,502 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:58:02,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:58:02,502 INFO L82 PathProgramCache]: Analyzing trace with hash 401075650, now seen corresponding path program 2 times [2021-10-13 07:58:02,502 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:58:02,503 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1954299254] [2021-10-13 07:58:02,503 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 07:58:02,503 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:58:02,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:58:02,504 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:58:02,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-10-13 07:58:02,846 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 07:58:02,847 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 07:58:02,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 28 conjunts are in the unsatisfiable core [2021-10-13 07:58:02,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:58:03,560 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2021-10-13 07:58:03,638 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:58:03,638 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:58:05,155 INFO L354 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2021-10-13 07:58:05,156 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 23 [2021-10-13 07:58:05,239 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:58:05,239 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:58:05,239 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1954299254] [2021-10-13 07:58:05,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1954299254] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:58:05,239 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [196539596] [2021-10-13 07:58:05,240 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 07:58:05,240 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 07:58:05,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 07:58:05,254 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 07:58:05,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2021-10-13 07:58:05,775 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 07:58:05,775 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 07:58:05,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 35 conjunts are in the unsatisfiable core [2021-10-13 07:58:05,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:58:07,430 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:58:07,431 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 15 [2021-10-13 07:58:07,582 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:58:07,582 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:58:07,816 INFO L354 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2021-10-13 07:58:07,816 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 23 [2021-10-13 07:58:07,902 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:58:07,903 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [196539596] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:58:07,903 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1756937596] [2021-10-13 07:58:07,903 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 07:58:07,906 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:58:07,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:58:07,907 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 07:58:07,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-10-13 07:58:08,461 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 07:58:08,461 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 07:58:08,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 28 conjunts are in the unsatisfiable core [2021-10-13 07:58:08,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:58:08,704 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2021-10-13 07:58:08,726 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:58:08,726 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:58:08,912 INFO L354 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2021-10-13 07:58:08,912 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 23 [2021-10-13 07:58:08,974 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:58:08,974 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1756937596] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:58:08,974 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-13 07:58:08,974 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18, 18, 18, 18] total 45 [2021-10-13 07:58:08,974 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064536655] [2021-10-13 07:58:08,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2021-10-13 07:58:08,975 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:58:08,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-10-13 07:58:08,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=240, Invalid=1740, Unknown=0, NotChecked=0, Total=1980 [2021-10-13 07:58:08,976 INFO L87 Difference]: Start difference. First operand 47 states and 50 transitions. Second operand has 45 states, 45 states have (on average 1.6888888888888889) internal successors, (76), 45 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:38,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:58:38,213 INFO L93 Difference]: Finished difference Result 163 states and 179 transitions. [2021-10-13 07:58:38,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2021-10-13 07:58:38,214 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 45 states have (on average 1.6888888888888889) internal successors, (76), 45 states have internal predecessors, (76), 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 32 [2021-10-13 07:58:38,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:58:38,215 INFO L225 Difference]: With dead ends: 163 [2021-10-13 07:58:38,215 INFO L226 Difference]: Without dead ends: 158 [2021-10-13 07:58:38,220 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4942 ImplicationChecksByTransitivity, 29960.5ms TimeCoverageRelationStatistics Valid=2754, Invalid=13502, Unknown=0, NotChecked=0, Total=16256 [2021-10-13 07:58:38,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2021-10-13 07:58:38,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 69. [2021-10-13 07:58:38,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 68 states have (on average 1.0735294117647058) internal successors, (73), 68 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:38,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 73 transitions. [2021-10-13 07:58:38,234 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 73 transitions. Word has length 32 [2021-10-13 07:58:38,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:58:38,235 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 73 transitions. [2021-10-13 07:58:38,235 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 1.6888888888888889) internal successors, (76), 45 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:38,235 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 73 transitions. [2021-10-13 07:58:38,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-10-13 07:58:38,236 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:58:38,236 INFO L512 BasicCegarLoop]: trace histogram [9, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:58:38,249 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-10-13 07:58:38,462 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2021-10-13 07:58:38,644 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2021-10-13 07:58:38,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt [2021-10-13 07:58:38,842 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:58:38,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:58:38,842 INFO L82 PathProgramCache]: Analyzing trace with hash 188924172, now seen corresponding path program 2 times [2021-10-13 07:58:38,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:58:38,843 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1127345277] [2021-10-13 07:58:38,843 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 07:58:38,843 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:58:38,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:58:38,844 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:58:38,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-10-13 07:58:39,261 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 07:58:39,261 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 07:58:39,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 39 conjunts are in the unsatisfiable core [2021-10-13 07:58:39,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:58:40,142 INFO L354 Elim1Store]: treesize reduction 155, result has 27.2 percent of original size [2021-10-13 07:58:40,143 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 67 [2021-10-13 07:58:41,183 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2021-10-13 07:58:41,291 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:58:41,292 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:58:45,462 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:58:45,463 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:58:45,463 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1127345277] [2021-10-13 07:58:45,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1127345277] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:58:45,463 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1665239941] [2021-10-13 07:58:45,463 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 07:58:45,463 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 07:58:45,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 07:58:45,470 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 07:58:45,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2021-10-13 07:58:46,179 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 07:58:46,179 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 07:58:46,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 32 conjunts are in the unsatisfiable core [2021-10-13 07:58:46,183 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:58:46,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:58:46,394 INFO L354 Elim1Store]: treesize reduction 135, result has 27.4 percent of original size [2021-10-13 07:58:46,395 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 42 treesize of output 67 [2021-10-13 07:58:49,335 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2021-10-13 07:58:49,412 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:58:49,412 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:58:52,056 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:58:52,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1665239941] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:58:52,056 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [105437957] [2021-10-13 07:58:52,056 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 07:58:52,056 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:58:52,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:58:52,057 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 07:58:52,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-10-13 07:58:52,606 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 07:58:52,606 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 07:58:52,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 31 conjunts are in the unsatisfiable core [2021-10-13 07:58:52,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:58:53,786 INFO L354 Elim1Store]: treesize reduction 155, result has 27.2 percent of original size [2021-10-13 07:58:53,787 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 67 [2021-10-13 07:58:57,678 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2021-10-13 07:58:57,700 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:58:57,700 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:58:58,099 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:58:58,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [105437957] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:58:58,100 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-13 07:58:58,100 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 20, 20, 20, 20] total 76 [2021-10-13 07:58:58,100 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945964878] [2021-10-13 07:58:58,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 76 states [2021-10-13 07:58:58,101 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:58:58,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2021-10-13 07:58:58,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=731, Invalid=4969, Unknown=0, NotChecked=0, Total=5700 [2021-10-13 07:58:58,104 INFO L87 Difference]: Start difference. First operand 69 states and 73 transitions. Second operand has 76 states, 76 states have (on average 1.7105263157894737) internal successors, (130), 76 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:48,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:59:48,697 INFO L93 Difference]: Finished difference Result 203 states and 225 transitions. [2021-10-13 07:59:48,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2021-10-13 07:59:48,698 INFO L78 Accepts]: Start accepts. Automaton has has 76 states, 76 states have (on average 1.7105263157894737) internal successors, (130), 76 states have internal predecessors, (130), 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 36 [2021-10-13 07:59:48,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:59:48,700 INFO L225 Difference]: With dead ends: 203 [2021-10-13 07:59:48,700 INFO L226 Difference]: Without dead ends: 198 [2021-10-13 07:59:48,711 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 135 SyntacticMatches, 1 SemanticMatches, 180 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10113 ImplicationChecksByTransitivity, 56319.5ms TimeCoverageRelationStatistics Valid=5250, Invalid=27692, Unknown=0, NotChecked=0, Total=32942 [2021-10-13 07:59:48,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2021-10-13 07:59:48,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 89. [2021-10-13 07:59:48,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 88 states have (on average 1.0681818181818181) internal successors, (94), 88 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:48,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 94 transitions. [2021-10-13 07:59:48,749 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 94 transitions. Word has length 36 [2021-10-13 07:59:48,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:59:48,750 INFO L470 AbstractCegarLoop]: Abstraction has 89 states and 94 transitions. [2021-10-13 07:59:48,750 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 76 states, 76 states have (on average 1.7105263157894737) internal successors, (130), 76 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:48,750 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 94 transitions. [2021-10-13 07:59:48,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-10-13 07:59:48,759 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:59:48,760 INFO L512 BasicCegarLoop]: trace histogram [11, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:59:48,768 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-10-13 07:59:48,963 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (17)] Ended with exit code 0 [2021-10-13 07:59:49,182 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-10-13 07:59:49,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:59:49,361 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:59:49,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:59:49,361 INFO L82 PathProgramCache]: Analyzing trace with hash -998842154, now seen corresponding path program 3 times [2021-10-13 07:59:49,363 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:59:49,363 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [468141370] [2021-10-13 07:59:49,363 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 07:59:49,363 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:59:49,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:59:49,364 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:59:49,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-10-13 07:59:49,897 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-13 07:59:49,897 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 07:59:49,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 31 conjunts are in the unsatisfiable core [2021-10-13 07:59:49,903 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:59:50,677 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 29 [2021-10-13 07:59:50,812 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 19 proven. 10 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2021-10-13 07:59:50,813 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:59:52,341 INFO L354 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2021-10-13 07:59:52,342 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 26 [2021-10-13 07:59:52,407 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2021-10-13 07:59:52,407 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:59:52,407 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [468141370] [2021-10-13 07:59:52,407 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [468141370] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:59:52,407 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1663007437] [2021-10-13 07:59:52,407 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 07:59:52,407 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 07:59:52,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 07:59:52,419 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 07:59:52,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2021-10-13 07:59:53,196 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-13 07:59:53,196 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 07:59:53,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 33 conjunts are in the unsatisfiable core [2021-10-13 07:59:53,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:59:54,746 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 29 [2021-10-13 07:59:54,793 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 19 proven. 10 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2021-10-13 07:59:54,793 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:59:55,603 INFO L354 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2021-10-13 07:59:55,604 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 26 [2021-10-13 07:59:55,669 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2021-10-13 07:59:55,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1663007437] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:59:55,669 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [159865115] [2021-10-13 07:59:55,669 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 07:59:55,669 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:59:55,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:59:55,670 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 07:59:55,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-10-13 07:59:56,416 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-13 07:59:56,416 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 07:59:56,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 32 conjunts are in the unsatisfiable core [2021-10-13 07:59:56,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:59:56,798 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 29 [2021-10-13 07:59:56,857 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 19 proven. 10 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2021-10-13 07:59:56,857 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:59:57,514 INFO L354 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2021-10-13 07:59:57,514 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 26 [2021-10-13 07:59:57,595 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2021-10-13 07:59:57,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [159865115] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:59:57,595 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-13 07:59:57,596 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16, 16, 16, 16] total 37 [2021-10-13 07:59:57,596 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527238779] [2021-10-13 07:59:57,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2021-10-13 07:59:57,596 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:59:57,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-10-13 07:59:57,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=1211, Unknown=0, NotChecked=0, Total=1332 [2021-10-13 07:59:57,598 INFO L87 Difference]: Start difference. First operand 89 states and 94 transitions. Second operand has 37 states, 37 states have (on average 1.5135135135135136) internal successors, (56), 37 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:00:12,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:00:12,669 INFO L93 Difference]: Finished difference Result 182 states and 192 transitions. [2021-10-13 08:00:12,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-10-13 08:00:12,669 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 1.5135135135135136) internal successors, (56), 37 states have internal predecessors, (56), 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 40 [2021-10-13 08:00:12,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:00:12,670 INFO L225 Difference]: With dead ends: 182 [2021-10-13 08:00:12,670 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 08:00:12,671 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1093 ImplicationChecksByTransitivity, 15877.0ms TimeCoverageRelationStatistics Valid=739, Invalid=4091, Unknown=0, NotChecked=0, Total=4830 [2021-10-13 08:00:12,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 08:00:12,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 08:00:12,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:00:12,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 08:00:12,672 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 40 [2021-10-13 08:00:12,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:00:12,672 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 08:00:12,672 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 1.5135135135135136) internal successors, (56), 37 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:00:12,673 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 08:00:12,673 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 08:00:12,675 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 08:00:12,686 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (20)] Ended with exit code 0 [2021-10-13 08:00:12,901 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2021-10-13 08:00:13,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-10-13 08:00:13,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:00:13,281 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-13 08:00:13,284 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:00:15,962 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:00:15,967 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:00:16,032 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:00:16,033 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:00:16,037 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:00:16,162 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:01:43,294 WARN L207 SmtUtils]: Spent 1.45 m on a formula simplification. DAG size of input: 481 DAG size of output: 63 [2021-10-13 08:01:53,142 WARN L207 SmtUtils]: Spent 8.98 s on a formula simplification. DAG size of input: 154 DAG size of output: 64 [2021-10-13 08:01:53,250 INFO L853 garLoopResultBuilder]: At program point L44(lines 33 52) the Hoare annotation is: false [2021-10-13 08:01:53,250 INFO L857 garLoopResultBuilder]: For program point L40-1(lines 40 42) no Hoare annotation was computed. [2021-10-13 08:01:53,251 INFO L853 garLoopResultBuilder]: At program point L40-3(lines 40 42) the Hoare annotation is: (let ((.cse1 (select (select |#memory_int| ULTIMATE.start_main_~pd2~0.base) ULTIMATE.start_main_~pd2~0.offset))) (let ((.cse0 (not (bvsgt .cse1 (_ bv0 32)))) (.cse2 (select (select |#memory_int| ULTIMATE.start_main_~pd1~0.base) ULTIMATE.start_main_~pd1~0.offset))) (and (or .cse0 (not (bvslt (bvadd .cse1 (_ bv4294967288 32)) .cse2)) (bvslt (bvadd .cse1 (_ bv4294967289 32)) .cse2)) (not (= |~#d2~0.base| |~#d1~0.base|)) (or (= .cse1 ULTIMATE.start_main_~i~0) (bvslt ULTIMATE.start_main_~i~0 (select (select |#memory_int| ULTIMATE.start_main_~pa~0.base) ULTIMATE.start_main_~pa~0.offset))) (or .cse0 (not (bvslt (bvadd .cse1 (_ bv4294967293 32)) .cse2)) (bvslt (bvadd .cse1 (_ bv4294967294 32)) .cse2)) (forall ((ULTIMATE.start_main_~i~0 (_ BitVec 32))) (let ((.cse3 (bvadd ULTIMATE.start_main_~i~0 (_ bv1 32))) (.cse4 (select (select |#memory_int| ULTIMATE.start_main_~pa~0.base) ULTIMATE.start_main_~pa~0.offset))) (or (= .cse3 (select (select |#memory_int| ULTIMATE.start_main_~pd2~0.base) ULTIMATE.start_main_~pd2~0.offset)) (not (bvslt ULTIMATE.start_main_~i~0 .cse4)) (bvslt .cse3 .cse4)))) (= |~#d2~0.offset| (_ bv0 32)) (= |~#d1~0.offset| (_ bv0 32)) (or (not |ULTIMATE.start_main_#t~short19|) (forall ((ULTIMATE.start_main_~i~0 (_ BitVec 32))) (let ((.cse5 (bvadd ULTIMATE.start_main_~i~0 (_ bv1 32))) (.cse6 (select (select |#memory_int| ULTIMATE.start_main_~pd1~0.base) ULTIMATE.start_main_~pd1~0.offset))) (or (= .cse5 (select (select |#memory_int| ULTIMATE.start_main_~pd2~0.base) ULTIMATE.start_main_~pd2~0.offset)) (bvslt .cse5 .cse6) (not (bvslt ULTIMATE.start_main_~i~0 .cse6))))))))) [2021-10-13 08:01:53,251 INFO L857 garLoopResultBuilder]: For program point L40-4(lines 40 42) no Hoare annotation was computed. [2021-10-13 08:01:53,251 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-13 08:01:53,251 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-13 08:01:53,251 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-13 08:01:53,251 INFO L857 garLoopResultBuilder]: For program point L24(line 24) no Hoare annotation was computed. [2021-10-13 08:01:53,251 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 50) no Hoare annotation was computed. [2021-10-13 08:01:53,251 INFO L857 garLoopResultBuilder]: For program point L24-2(line 24) no Hoare annotation was computed. [2021-10-13 08:01:53,251 INFO L853 garLoopResultBuilder]: At program point L24-3(lines 22 25) the Hoare annotation is: (let ((.cse3 (= |~#d2~0.base| |ULTIMATE.start_get_dummy_#res.base|)) (.cse2 (= |ULTIMATE.start_get_dummy_#res.base| |~#d1~0.base|)) (.cse0 (= |~#d2~0.offset| (_ bv0 32))) (.cse1 (= |~#d1~0.offset| (_ bv0 32)))) (or (and (= |ULTIMATE.start_get_dummy_#res.offset| |~#d2~0.offset|) .cse0 .cse1 (not .cse2) .cse3) (and (not .cse3) .cse2 .cse0 .cse1 (= |ULTIMATE.start_get_dummy_#res.offset| |~#d1~0.offset|)))) [2021-10-13 08:01:53,251 INFO L857 garLoopResultBuilder]: For program point L24-4(line 24) no Hoare annotation was computed. [2021-10-13 08:01:53,251 INFO L857 garLoopResultBuilder]: For program point L24-6(line 24) no Hoare annotation was computed. [2021-10-13 08:01:53,252 INFO L853 garLoopResultBuilder]: At program point L24-7(lines 22 25) the Hoare annotation is: (or (and (= |~#d2~0.offset| (_ bv0 32)) (= |~#d1~0.offset| (_ bv0 32)) (or (and (= |ULTIMATE.start_get_dummy_#res.offset| |~#d1~0.offset|) (= ULTIMATE.start_main_~pd1~0.base |~#d1~0.base|) (= ULTIMATE.start_main_~pd1~0.offset |~#d1~0.offset|) (not (= |~#d2~0.base| ULTIMATE.start_main_~pd1~0.base))) (and (= |ULTIMATE.start_get_dummy_#res.offset| |~#d2~0.offset|) (not (= |ULTIMATE.start_get_dummy_#res.base| |~#d1~0.base|)) (= |~#d2~0.base| |ULTIMATE.start_get_dummy_#res.base|) (= ULTIMATE.start_main_~pd1~0.offset |~#d2~0.offset|)))) (and (not (= |~#d2~0.base| |~#d1~0.base|)) (not (= ULTIMATE.start_main_~pd1~0.base |ULTIMATE.start_get_dummy_#res.base|)))) [2021-10-13 08:01:53,252 INFO L857 garLoopResultBuilder]: For program point L24-8(line 24) no Hoare annotation was computed. [2021-10-13 08:01:53,252 INFO L857 garLoopResultBuilder]: For program point L24-10(line 24) no Hoare annotation was computed. [2021-10-13 08:01:53,252 INFO L853 garLoopResultBuilder]: At program point L24-11(lines 22 25) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_main_~pd2~0.base ULTIMATE.start_main_~pd1~0.base)) (.cse4 (= ULTIMATE.start_main_~pd1~0.base |~#d1~0.base|)) (.cse1 (= |~#d2~0.base| ULTIMATE.start_main_~pd1~0.base))) (let ((.cse2 (= ULTIMATE.start_main_~pd2~0.offset (_ bv0 32))) (.cse3 (let ((.cse5 (= ULTIMATE.start_main_~pd1~0.offset ULTIMATE.start_main_~pd2~0.offset))) (or (and .cse0 .cse1 .cse5 (= ULTIMATE.start_main_~pd1~0.offset |~#d2~0.offset|) (not .cse4)) (and .cse0 .cse5 .cse4 (= ULTIMATE.start_main_~pd1~0.offset |~#d1~0.offset|) (not .cse1)))))) (or (and (not (= |~#d2~0.base| |~#d1~0.base|)) (not .cse0)) (and .cse1 (= |~#d1~0.offset| (_ bv0 32)) .cse2 .cse3) (and (= |~#d2~0.offset| (_ bv0 32)) .cse4 .cse2 .cse3)))) [2021-10-13 08:01:53,252 INFO L857 garLoopResultBuilder]: For program point L37(line 37) no Hoare annotation was computed. [2021-10-13 08:01:53,252 INFO L857 garLoopResultBuilder]: For program point L37-2(lines 37 46) no Hoare annotation was computed. [2021-10-13 08:01:53,252 INFO L857 garLoopResultBuilder]: For program point L37-4(lines 37 46) no Hoare annotation was computed. [2021-10-13 08:01:53,252 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-13 08:01:53,252 INFO L853 garLoopResultBuilder]: At program point L29(lines 27 30) the Hoare annotation is: (let ((.cse1 (select (select |#memory_int| ULTIMATE.start_main_~pd2~0.base) ULTIMATE.start_main_~pd2~0.offset))) (let ((.cse0 (not (bvsgt .cse1 (_ bv0 32)))) (.cse2 (select (select |#memory_int| ULTIMATE.start_main_~pd1~0.base) ULTIMATE.start_main_~pd1~0.offset))) (and (or .cse0 (not (bvslt (bvadd .cse1 (_ bv4294967288 32)) .cse2)) (bvslt (bvadd .cse1 (_ bv4294967289 32)) .cse2)) (not (= |~#d2~0.base| |~#d1~0.base|)) (or .cse0 (not (bvslt (bvadd .cse1 (_ bv4294967293 32)) .cse2)) (bvslt (bvadd .cse1 (_ bv4294967294 32)) .cse2)) (forall ((ULTIMATE.start_main_~i~0 (_ BitVec 32))) (let ((.cse3 (bvadd ULTIMATE.start_main_~i~0 (_ bv1 32))) (.cse4 (select (select |#memory_int| ULTIMATE.start_main_~pa~0.base) ULTIMATE.start_main_~pa~0.offset))) (or (= .cse3 (select (select |#memory_int| ULTIMATE.start_main_~pd2~0.base) ULTIMATE.start_main_~pd2~0.offset)) (not (bvslt ULTIMATE.start_main_~i~0 .cse4)) (bvslt .cse3 .cse4)))) (= |ULTIMATE.start_check_#res| (_ bv1 32)) (= .cse1 ULTIMATE.start_main_~i~0) (= |~#d2~0.offset| (_ bv0 32)) (= |~#d1~0.offset| (_ bv0 32)) (or (not |ULTIMATE.start_main_#t~short19|) (forall ((ULTIMATE.start_main_~i~0 (_ BitVec 32))) (let ((.cse5 (bvadd ULTIMATE.start_main_~i~0 (_ bv1 32))) (.cse6 (select (select |#memory_int| ULTIMATE.start_main_~pd1~0.base) ULTIMATE.start_main_~pd1~0.offset))) (or (= .cse5 (select (select |#memory_int| ULTIMATE.start_main_~pd2~0.base) ULTIMATE.start_main_~pd2~0.offset)) (bvslt .cse5 .cse6) (not (bvslt ULTIMATE.start_main_~i~0 .cse6))))))))) [2021-10-13 08:01:53,252 INFO L857 garLoopResultBuilder]: For program point L13(lines 13 20) no Hoare annotation was computed. [2021-10-13 08:01:53,252 INFO L860 garLoopResultBuilder]: At program point L51(lines 32 52) the Hoare annotation is: true [2021-10-13 08:01:53,253 INFO L857 garLoopResultBuilder]: For program point L43(lines 43 45) no Hoare annotation was computed. [2021-10-13 08:01:53,256 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 08:01:53,263 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-13 08:01:53,263 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-13 08:01:53,264 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-13 08:01:53,264 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-13 08:01:53,264 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-13 08:01:53,264 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-13 08:01:53,295 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-13 08:01:53,296 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-13 08:01:53,296 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-13 08:01:53,296 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-13 08:01:53,296 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-13 08:01:53,297 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-13 08:01:53,317 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-13 08:01:53,317 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-13 08:01:53,317 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-13 08:01:53,317 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-13 08:01:53,317 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-13 08:01:53,318 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-13 08:01:53,320 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-13 08:01:53,320 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-13 08:01:53,320 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-13 08:01:53,320 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-13 08:01:53,320 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-13 08:01:53,321 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-13 08:01:53,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 08:01:53 BoogieIcfgContainer [2021-10-13 08:01:53,324 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 08:01:53,325 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 08:01:53,325 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 08:01:53,325 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 08:01:53,325 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:57:17" (3/4) ... [2021-10-13 08:01:53,328 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 08:01:53,339 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-13 08:01:53,340 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-13 08:01:53,340 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 08:01:53,340 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 08:01:53,365 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\result == d2 && d2 == 0bv32) && d1 == 0bv32) && !(\result == d1)) && d2 == \result) || ((((!(d2 == \result) && \result == d1) && d2 == 0bv32) && d1 == 0bv32) && \result == d1) [2021-10-13 08:01:53,365 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((d2 == 0bv32 && d1 == 0bv32) && ((((\result == d1 && pd1 == d1) && pd1 == d1) && !(d2 == pd1)) || (((\result == d2 && !(\result == d1)) && d2 == \result) && pd1 == d2))) || (!(d2 == d1) && !(pd1 == \result)) [2021-10-13 08:01:53,366 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((!~bvsgt32(unknown-#memory_int-unknown[pd2][pd2], 0bv32) || !~bvslt32(~bvadd64(unknown-#memory_int-unknown[pd2][pd2], 4294967288bv32), unknown-#memory_int-unknown[pd1][pd1])) || ~bvslt32(~bvadd64(unknown-#memory_int-unknown[pd2][pd2], 4294967289bv32), unknown-#memory_int-unknown[pd1][pd1])) && !(d2 == d1)) && ((!~bvsgt32(unknown-#memory_int-unknown[pd2][pd2], 0bv32) || !~bvslt32(~bvadd64(unknown-#memory_int-unknown[pd2][pd2], 4294967293bv32), unknown-#memory_int-unknown[pd1][pd1])) || ~bvslt32(~bvadd64(unknown-#memory_int-unknown[pd2][pd2], 4294967294bv32), unknown-#memory_int-unknown[pd1][pd1]))) && (forall ULTIMATE.start_main_~i~0 : bv32 :: (~bvadd64(ULTIMATE.start_main_~i~0, 1bv32) == unknown-#memory_int-unknown[pd2][pd2] || !~bvslt32(ULTIMATE.start_main_~i~0, unknown-#memory_int-unknown[pa][pa])) || ~bvslt32(~bvadd64(ULTIMATE.start_main_~i~0, 1bv32), unknown-#memory_int-unknown[pa][pa]))) && \result == 1bv32) && unknown-#memory_int-unknown[pd2][pd2] == i) && d2 == 0bv32) && d1 == 0bv32) && (!aux-pd1 != 0 && pd1 == pd2 && (*pd2).a > 0-aux || (forall ULTIMATE.start_main_~i~0 : bv32 :: (~bvadd64(ULTIMATE.start_main_~i~0, 1bv32) == unknown-#memory_int-unknown[pd2][pd2] || ~bvslt32(~bvadd64(ULTIMATE.start_main_~i~0, 1bv32), unknown-#memory_int-unknown[pd1][pd1])) || !~bvslt32(ULTIMATE.start_main_~i~0, unknown-#memory_int-unknown[pd1][pd1]))) [2021-10-13 08:01:53,384 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/witness.graphml [2021-10-13 08:01:53,389 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 08:01:53,390 INFO L168 Benchmark]: Toolchain (without parser) took 276493.70 ms. Allocated memory was 56.6 MB in the beginning and 394.3 MB in the end (delta: 337.6 MB). Free memory was 34.9 MB in the beginning and 251.1 MB in the end (delta: -216.2 MB). Peak memory consumption was 120.3 MB. Max. memory is 16.1 GB. [2021-10-13 08:01:53,390 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 56.6 MB. Free memory is still 38.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 08:01:53,390 INFO L168 Benchmark]: CACSL2BoogieTranslator took 356.26 ms. Allocated memory is still 56.6 MB. Free memory was 34.8 MB in the beginning and 40.2 MB in the end (delta: -5.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-13 08:01:53,391 INFO L168 Benchmark]: Boogie Procedure Inliner took 74.60 ms. Allocated memory is still 56.6 MB. Free memory was 40.2 MB in the beginning and 38.5 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 08:01:53,391 INFO L168 Benchmark]: Boogie Preprocessor took 56.22 ms. Allocated memory is still 56.6 MB. Free memory was 38.5 MB in the beginning and 37.1 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 08:01:53,394 INFO L168 Benchmark]: RCFGBuilder took 525.26 ms. Allocated memory is still 56.6 MB. Free memory was 37.0 MB in the beginning and 25.0 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-13 08:01:53,395 INFO L168 Benchmark]: TraceAbstraction took 275410.04 ms. Allocated memory was 56.6 MB in the beginning and 394.3 MB in the end (delta: 337.6 MB). Free memory was 24.5 MB in the beginning and 255.3 MB in the end (delta: -230.9 MB). Peak memory consumption was 244.9 MB. Max. memory is 16.1 GB. [2021-10-13 08:01:53,395 INFO L168 Benchmark]: Witness Printer took 64.36 ms. Allocated memory is still 394.3 MB. Free memory was 255.3 MB in the beginning and 251.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 08:01:53,397 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 56.6 MB. Free memory is still 38.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 356.26 ms. Allocated memory is still 56.6 MB. Free memory was 34.8 MB in the beginning and 40.2 MB in the end (delta: -5.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 74.60 ms. Allocated memory is still 56.6 MB. Free memory was 40.2 MB in the beginning and 38.5 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 56.22 ms. Allocated memory is still 56.6 MB. Free memory was 38.5 MB in the beginning and 37.1 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 525.26 ms. Allocated memory is still 56.6 MB. Free memory was 37.0 MB in the beginning and 25.0 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 275410.04 ms. Allocated memory was 56.6 MB in the beginning and 394.3 MB in the end (delta: 337.6 MB). Free memory was 24.5 MB in the beginning and 255.3 MB in the end (delta: -230.9 MB). Peak memory consumption was 244.9 MB. Max. memory is 16.1 GB. * Witness Printer took 64.36 ms. Allocated memory is still 394.3 MB. Free memory was 255.3 MB in the beginning and 251.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] * 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: 50]: 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, 25 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 275247.7ms, OverallIterations: 10, TraceHistogramMax: 11, EmptinessCheckTime: 39.6ms, AutomataDifference: 124004.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 99970.6ms, InitialAbstractionConstructionTime: 11.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 232 SDtfs, 1589 SDslu, 2138 SDs, 0 SdLazy, 5786 SolverSat, 925 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14511.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1504 GetRequests, 843 SyntacticMatches, 2 SemanticMatches, 659 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20593 ImplicationChecksByTransitivity, 129917.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=89occurred in iteration=9, InterpolantAutomatonStates: 447, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 145.1ms AutomataMinimizationTime, 10 MinimizatonAttempts, 537 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 91 NumberOfFragments, 492 HoareAnnotationTreeSize, 7 FomulaSimplifications, 9426009 FormulaSimplificationTreeSizeReduction, 2881.1ms HoareSimplificationTime, 7 FomulaSimplificationsInter, 882794 FormulaSimplificationTreeSizeReductionInter, 97079.7ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 287.8ms SsaConstructionTime, 1674.6ms SatisfiabilityAnalysisTime, 39492.3ms InterpolantComputationTime, 573 NumberOfCodeBlocks, 525 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 1106 ConstructedInterpolants, 63 QuantifiedInterpolants, 13193 SizeOfPredicates, 247 NumberOfNonLiveVariables, 1728 ConjunctsInSsa, 499 ConjunctsInUnsatCore, 40 InterpolantComputations, 10 PerfectInterpolantSequences, 543/1452 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 1 specifications checked. All of them hold - InvariantResult [Line: 40]: Loop Invariant [2021-10-13 08:01:53,418 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-13 08:01:53,419 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-13 08:01:53,419 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-13 08:01:53,419 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-13 08:01:53,419 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-13 08:01:53,420 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-13 08:01:53,427 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-13 08:01:53,427 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-13 08:01:53,427 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-13 08:01:53,427 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-13 08:01:53,428 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-13 08:01:53,428 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] Derived loop invariant: ((((((((!~bvsgt32(unknown-#memory_int-unknown[pd2][pd2], 0bv32) || !~bvslt32(~bvadd64(unknown-#memory_int-unknown[pd2][pd2], 4294967288bv32), unknown-#memory_int-unknown[pd1][pd1])) || ~bvslt32(~bvadd64(unknown-#memory_int-unknown[pd2][pd2], 4294967289bv32), unknown-#memory_int-unknown[pd1][pd1])) && !(d2 == d1)) && (unknown-#memory_int-unknown[pd2][pd2] == i || ~bvslt32(i, unknown-#memory_int-unknown[pa][pa]))) && ((!~bvsgt32(unknown-#memory_int-unknown[pd2][pd2], 0bv32) || !~bvslt32(~bvadd64(unknown-#memory_int-unknown[pd2][pd2], 4294967293bv32), unknown-#memory_int-unknown[pd1][pd1])) || ~bvslt32(~bvadd64(unknown-#memory_int-unknown[pd2][pd2], 4294967294bv32), unknown-#memory_int-unknown[pd1][pd1]))) && (forall ULTIMATE.start_main_~i~0 : bv32 :: (~bvadd64(ULTIMATE.start_main_~i~0, 1bv32) == unknown-#memory_int-unknown[pd2][pd2] || !~bvslt32(ULTIMATE.start_main_~i~0, unknown-#memory_int-unknown[pa][pa])) || ~bvslt32(~bvadd64(ULTIMATE.start_main_~i~0, 1bv32), unknown-#memory_int-unknown[pa][pa]))) && d2 == 0bv32) && d1 == 0bv32) && (!aux-pd1 != 0 && pd1 == pd2 && (*pd2).a > 0-aux || (forall ULTIMATE.start_main_~i~0 : bv32 :: (~bvadd64(ULTIMATE.start_main_~i~0, 1bv32) == unknown-#memory_int-unknown[pd2][pd2] || ~bvslt32(~bvadd64(ULTIMATE.start_main_~i~0, 1bv32), unknown-#memory_int-unknown[pd1][pd1])) || !~bvslt32(ULTIMATE.start_main_~i~0, unknown-#memory_int-unknown[pd1][pd1]))) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: ((d2 == 0bv32 && d1 == 0bv32) && ((((\result == d1 && pd1 == d1) && pd1 == d1) && !(d2 == pd1)) || (((\result == d2 && !(\result == d1)) && d2 == \result) && pd1 == d2))) || (!(d2 == d1) && !(pd1 == \result)) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: ((!(d2 == d1) && !(pd2 == pd1)) || (((d2 == pd1 && d1 == 0bv32) && pd2 == 0bv32) && (((((pd2 == pd1 && d2 == pd1) && pd1 == pd2) && pd1 == d2) && !(pd1 == d1)) || ((((pd2 == pd1 && pd1 == pd2) && pd1 == d1) && pd1 == d1) && !(d2 == pd1))))) || (((d2 == 0bv32 && pd1 == d1) && pd2 == 0bv32) && (((((pd2 == pd1 && d2 == pd1) && pd1 == pd2) && pd1 == d2) && !(pd1 == d1)) || ((((pd2 == pd1 && pd1 == pd2) && pd1 == d1) && pd1 == d1) && !(d2 == pd1)))) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 27]: Loop Invariant [2021-10-13 08:01:53,432 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-13 08:01:53,432 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-13 08:01:53,432 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-13 08:01:53,433 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-13 08:01:53,433 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-13 08:01:53,433 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-13 08:01:53,434 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-13 08:01:53,434 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-13 08:01:53,434 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-13 08:01:53,435 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-13 08:01:53,435 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-13 08:01:53,435 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] Derived loop invariant: (((((((((!~bvsgt32(unknown-#memory_int-unknown[pd2][pd2], 0bv32) || !~bvslt32(~bvadd64(unknown-#memory_int-unknown[pd2][pd2], 4294967288bv32), unknown-#memory_int-unknown[pd1][pd1])) || ~bvslt32(~bvadd64(unknown-#memory_int-unknown[pd2][pd2], 4294967289bv32), unknown-#memory_int-unknown[pd1][pd1])) && !(d2 == d1)) && ((!~bvsgt32(unknown-#memory_int-unknown[pd2][pd2], 0bv32) || !~bvslt32(~bvadd64(unknown-#memory_int-unknown[pd2][pd2], 4294967293bv32), unknown-#memory_int-unknown[pd1][pd1])) || ~bvslt32(~bvadd64(unknown-#memory_int-unknown[pd2][pd2], 4294967294bv32), unknown-#memory_int-unknown[pd1][pd1]))) && (forall ULTIMATE.start_main_~i~0 : bv32 :: (~bvadd64(ULTIMATE.start_main_~i~0, 1bv32) == unknown-#memory_int-unknown[pd2][pd2] || !~bvslt32(ULTIMATE.start_main_~i~0, unknown-#memory_int-unknown[pa][pa])) || ~bvslt32(~bvadd64(ULTIMATE.start_main_~i~0, 1bv32), unknown-#memory_int-unknown[pa][pa]))) && \result == 1bv32) && unknown-#memory_int-unknown[pd2][pd2] == i) && d2 == 0bv32) && d1 == 0bv32) && (!aux-pd1 != 0 && pd1 == pd2 && (*pd2).a > 0-aux || (forall ULTIMATE.start_main_~i~0 : bv32 :: (~bvadd64(ULTIMATE.start_main_~i~0, 1bv32) == unknown-#memory_int-unknown[pd2][pd2] || ~bvslt32(~bvadd64(ULTIMATE.start_main_~i~0, 1bv32), unknown-#memory_int-unknown[pd1][pd1])) || !~bvslt32(ULTIMATE.start_main_~i~0, unknown-#memory_int-unknown[pd1][pd1]))) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: ((((\result == d2 && d2 == 0bv32) && d1 == 0bv32) && !(\result == d1)) && d2 == \result) || ((((!(d2 == \result) && \result == d1) && d2 == 0bv32) && d1 == 0bv32) && \result == d1) RESULT: Ultimate proved your program to be correct! [2021-10-13 08:01:53,541 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3eb48e-5b08-47ad-a4ad-f7654ba0ae6a/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...