./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1a98-fc55-4b76-9f6e-def4e0c3ab70/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1a98-fc55-4b76-9f6e-def4e0c3ab70/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1a98-fc55-4b76-9f6e-def4e0c3ab70/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1a98-fc55-4b76-9f6e-def4e0c3ab70/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1a98-fc55-4b76-9f6e-def4e0c3ab70/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1a98-fc55-4b76-9f6e-def4e0c3ab70/bin/utaipan-I9t0OCRTmS --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 bb48026e7f870ff561a4cdd394c24cb5edb1d0f2fc8e8ef2bffe0b7b8438fda4 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 07:43:21,826 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:43:21,828 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:43:21,846 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:43:21,847 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:43:21,848 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:43:21,850 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:43:21,852 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:43:21,853 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:43:21,854 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:43:21,855 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:43:21,857 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:43:21,857 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:43:21,858 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:43:21,862 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:43:21,863 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:43:21,865 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:43:21,866 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:43:21,868 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:43:21,870 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:43:21,872 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:43:21,873 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:43:21,875 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:43:21,876 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:43:21,880 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:43:21,881 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:43:21,881 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:43:21,882 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:43:21,883 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:43:21,884 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:43:21,885 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:43:21,886 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:43:21,887 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:43:21,888 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:43:21,889 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:43:21,889 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:43:21,890 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:43:21,890 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:43:21,891 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:43:21,892 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:43:21,893 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:43:21,896 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1a98-fc55-4b76-9f6e-def4e0c3ab70/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 07:43:21,932 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:43:21,941 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:43:21,943 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:43:21,943 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:43:21,944 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:43:21,944 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:43:21,945 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:43:21,945 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:43:21,945 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:43:21,945 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:43:21,946 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:43:21,947 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:43:21,947 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:43:21,947 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:43:21,947 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:43:21,947 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:43:21,948 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:43:21,948 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:43:21,949 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:43:21,949 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 07:43:21,949 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:43:21,949 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 07:43:21,950 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:43:21,950 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:43:21,950 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:43:21,950 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:43:21,950 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 07:43:21,951 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:43:21,951 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:43:21,951 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:43:21,951 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:43:21,952 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:43:21,952 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:43:21,952 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:43:21,952 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:43:21,953 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:43:21,953 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:43:21,953 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:43:21,953 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:43:21,953 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:43:21,954 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:43:21,954 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1a98-fc55-4b76-9f6e-def4e0c3ab70/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1a98-fc55-4b76-9f6e-def4e0c3ab70/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb48026e7f870ff561a4cdd394c24cb5edb1d0f2fc8e8ef2bffe0b7b8438fda4 [2022-11-19 07:43:22,300 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:43:22,324 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:43:22,327 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:43:22,328 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:43:22,329 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:43:22,330 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1a98-fc55-4b76-9f6e-def4e0c3ab70/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i [2022-11-19 07:43:22,422 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1a98-fc55-4b76-9f6e-def4e0c3ab70/bin/utaipan-I9t0OCRTmS/data/9c1efbbc1/23f4a142ec4a4d819ace4a7deee0814e/FLAG7fafaefe7 [2022-11-19 07:43:23,185 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:43:23,186 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1a98-fc55-4b76-9f6e-def4e0c3ab70/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i [2022-11-19 07:43:23,204 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1a98-fc55-4b76-9f6e-def4e0c3ab70/bin/utaipan-I9t0OCRTmS/data/9c1efbbc1/23f4a142ec4a4d819ace4a7deee0814e/FLAG7fafaefe7 [2022-11-19 07:43:23,351 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1a98-fc55-4b76-9f6e-def4e0c3ab70/bin/utaipan-I9t0OCRTmS/data/9c1efbbc1/23f4a142ec4a4d819ace4a7deee0814e [2022-11-19 07:43:23,357 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:43:23,359 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:43:23,366 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:43:23,367 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:43:23,372 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:43:23,373 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:43:23" (1/1) ... [2022-11-19 07:43:23,377 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51afee7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:23, skipping insertion in model container [2022-11-19 07:43:23,377 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:43:23" (1/1) ... [2022-11-19 07:43:23,387 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:43:23,491 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:43:24,193 WARN L234 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_33af1a98-fc55-4b76-9f6e-def4e0c3ab70/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i[44118,44131] [2022-11-19 07:43:24,210 WARN L234 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_33af1a98-fc55-4b76-9f6e-def4e0c3ab70/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i[44660,44673] [2022-11-19 07:43:24,391 WARN L234 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_33af1a98-fc55-4b76-9f6e-def4e0c3ab70/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i[56247,56260] [2022-11-19 07:43:24,392 WARN L234 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_33af1a98-fc55-4b76-9f6e-def4e0c3ab70/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i[56368,56381] [2022-11-19 07:43:24,418 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:43:24,428 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:43:24,458 WARN L234 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_33af1a98-fc55-4b76-9f6e-def4e0c3ab70/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i[44118,44131] [2022-11-19 07:43:24,461 WARN L234 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_33af1a98-fc55-4b76-9f6e-def4e0c3ab70/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i[44660,44673] [2022-11-19 07:43:24,509 WARN L234 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_33af1a98-fc55-4b76-9f6e-def4e0c3ab70/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i[56247,56260] [2022-11-19 07:43:24,510 WARN L234 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_33af1a98-fc55-4b76-9f6e-def4e0c3ab70/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i[56368,56381] [2022-11-19 07:43:24,520 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:43:24,585 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:43:24,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:24 WrapperNode [2022-11-19 07:43:24,586 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:43:24,587 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:43:24,588 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:43:24,588 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:43:24,596 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:24" (1/1) ... [2022-11-19 07:43:24,654 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:24" (1/1) ... [2022-11-19 07:43:24,766 INFO L138 Inliner]: procedures = 282, calls = 347, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1195 [2022-11-19 07:43:24,767 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:43:24,768 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:43:24,768 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:43:24,768 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:43:24,783 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:24" (1/1) ... [2022-11-19 07:43:24,783 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:24" (1/1) ... [2022-11-19 07:43:24,805 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:24" (1/1) ... [2022-11-19 07:43:24,805 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:24" (1/1) ... [2022-11-19 07:43:24,862 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:24" (1/1) ... [2022-11-19 07:43:24,876 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:24" (1/1) ... [2022-11-19 07:43:24,883 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:24" (1/1) ... [2022-11-19 07:43:24,889 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:24" (1/1) ... [2022-11-19 07:43:24,901 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:43:24,902 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:43:24,903 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:43:24,903 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:43:24,904 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:24" (1/1) ... [2022-11-19 07:43:24,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:43:24,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1a98-fc55-4b76-9f6e-def4e0c3ab70/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:43:24,945 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1a98-fc55-4b76-9f6e-def4e0c3ab70/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:43:24,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1a98-fc55-4b76-9f6e-def4e0c3ab70/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:43:25,054 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:43:25,055 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-19 07:43:25,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 07:43:25,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:43:25,055 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2022-11-19 07:43:25,055 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2022-11-19 07:43:25,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 07:43:25,055 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-19 07:43:25,056 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-19 07:43:25,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 07:43:25,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 07:43:25,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:43:25,056 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2022-11-19 07:43:25,056 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2022-11-19 07:43:25,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 07:43:25,057 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2022-11-19 07:43:25,057 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2022-11-19 07:43:25,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:43:25,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:43:25,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:43:25,472 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:43:25,474 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:43:27,112 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:43:27,708 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:43:27,708 INFO L300 CfgBuilder]: Removed 72 assume(true) statements. [2022-11-19 07:43:27,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:43:27 BoogieIcfgContainer [2022-11-19 07:43:27,713 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:43:27,719 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:43:27,720 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:43:27,724 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:43:27,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:43:23" (1/3) ... [2022-11-19 07:43:27,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34536ff7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:43:27, skipping insertion in model container [2022-11-19 07:43:27,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:24" (2/3) ... [2022-11-19 07:43:27,727 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34536ff7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:43:27, skipping insertion in model container [2022-11-19 07:43:27,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:43:27" (3/3) ... [2022-11-19 07:43:27,729 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test6-2.i [2022-11-19 07:43:27,757 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:43:27,758 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-19 07:43:27,853 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:43:27,860 INFO L357 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, mAutomataTypeConcurrency=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@63795fd3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:43:27,861 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-19 07:43:27,866 INFO L276 IsEmpty]: Start isEmpty. Operand has 160 states, 136 states have (on average 1.713235294117647) internal successors, (233), 140 states have internal predecessors, (233), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-19 07:43:27,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-19 07:43:27,875 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:43:27,876 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:43:27,876 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 07:43:27,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:43:27,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1734874149, now seen corresponding path program 1 times [2022-11-19 07:43:27,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:43:27,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318589619] [2022-11-19 07:43:27,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:43:27,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:43:28,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:43:28,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:43:28,143 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:43:28,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318589619] [2022-11-19 07:43:28,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318589619] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:43:28,145 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:43:28,145 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:43:28,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912803816] [2022-11-19 07:43:28,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:43:28,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 07:43:28,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:43:28,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 07:43:28,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 07:43:28,201 INFO L87 Difference]: Start difference. First operand has 160 states, 136 states have (on average 1.713235294117647) internal successors, (233), 140 states have internal predecessors, (233), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2022-11-19 07:43:28,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:43:28,939 INFO L93 Difference]: Finished difference Result 317 states and 538 transitions. [2022-11-19 07:43:28,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 07:43:28,945 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 [2022-11-19 07:43:28,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:43:28,955 INFO L225 Difference]: With dead ends: 317 [2022-11-19 07:43:28,955 INFO L226 Difference]: Without dead ends: 157 [2022-11-19 07:43:28,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 07:43:28,967 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-19 07:43:28,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 162 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-19 07:43:28,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2022-11-19 07:43:29,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2022-11-19 07:43:29,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 134 states have (on average 1.1791044776119404) internal successors, (158), 138 states have internal predecessors, (158), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-19 07:43:29,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 188 transitions. [2022-11-19 07:43:29,030 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 188 transitions. Word has length 7 [2022-11-19 07:43:29,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:43:29,031 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 188 transitions. [2022-11-19 07:43:29,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2022-11-19 07:43:29,032 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 188 transitions. [2022-11-19 07:43:29,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-19 07:43:29,032 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:43:29,033 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:43:29,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:43:29,033 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 07:43:29,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:43:29,034 INFO L85 PathProgramCache]: Analyzing trace with hash 716431104, now seen corresponding path program 1 times [2022-11-19 07:43:29,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:43:29,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773052647] [2022-11-19 07:43:29,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:43:29,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:43:29,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:43:29,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:43:29,233 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:43:29,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773052647] [2022-11-19 07:43:29,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773052647] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:43:29,234 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:43:29,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:43:29,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704621643] [2022-11-19 07:43:29,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:43:29,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:43:29,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:43:29,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:43:29,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:43:29,237 INFO L87 Difference]: Start difference. First operand 157 states and 188 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 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) [2022-11-19 07:43:30,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:43:30,669 INFO L93 Difference]: Finished difference Result 324 states and 391 transitions. [2022-11-19 07:43:30,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:43:30,675 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 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 9 [2022-11-19 07:43:30,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:43:30,677 INFO L225 Difference]: With dead ends: 324 [2022-11-19 07:43:30,678 INFO L226 Difference]: Without dead ends: 232 [2022-11-19 07:43:30,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:43:30,680 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 74 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-19 07:43:30,681 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 448 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-19 07:43:30,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2022-11-19 07:43:30,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 159. [2022-11-19 07:43:30,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 136 states have (on average 1.1764705882352942) internal successors, (160), 140 states have internal predecessors, (160), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-19 07:43:30,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 190 transitions. [2022-11-19 07:43:30,732 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 190 transitions. Word has length 9 [2022-11-19 07:43:30,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:43:30,733 INFO L495 AbstractCegarLoop]: Abstraction has 159 states and 190 transitions. [2022-11-19 07:43:30,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 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) [2022-11-19 07:43:30,733 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 190 transitions. [2022-11-19 07:43:30,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-19 07:43:30,734 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:43:30,735 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:43:30,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:43:30,736 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 07:43:30,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:43:30,738 INFO L85 PathProgramCache]: Analyzing trace with hash -1588621598, now seen corresponding path program 1 times [2022-11-19 07:43:30,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:43:30,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183469824] [2022-11-19 07:43:30,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:43:30,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:43:30,789 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 07:43:30,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1220082124] [2022-11-19 07:43:30,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:43:30,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:43:30,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1a98-fc55-4b76-9f6e-def4e0c3ab70/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:43:30,795 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1a98-fc55-4b76-9f6e-def4e0c3ab70/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:43:30,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1a98-fc55-4b76-9f6e-def4e0c3ab70/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 07:43:32,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:43:32,579 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-19 07:43:32,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:43:32,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:43:32,681 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:43:32,682 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:43:32,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183469824] [2022-11-19 07:43:32,683 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 07:43:32,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1220082124] [2022-11-19 07:43:32,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1220082124] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:43:32,685 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:43:32,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 07:43:32,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581763766] [2022-11-19 07:43:32,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:43:32,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-19 07:43:32,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:43:32,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-19 07:43:32,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:43:32,687 INFO L87 Difference]: Start difference. First operand 159 states and 190 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:43:36,170 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 07:43:37,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:43:37,423 INFO L93 Difference]: Finished difference Result 170 states and 201 transitions. [2022-11-19 07:43:37,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 07:43:37,424 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-19 07:43:37,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:43:37,426 INFO L225 Difference]: With dead ends: 170 [2022-11-19 07:43:37,426 INFO L226 Difference]: Without dead ends: 168 [2022-11-19 07:43:37,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-19 07:43:37,428 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 125 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 737 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-11-19 07:43:37,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 737 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-11-19 07:43:37,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2022-11-19 07:43:37,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2022-11-19 07:43:37,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 142 states have (on average 1.176056338028169) internal successors, (167), 147 states have internal predecessors, (167), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-19 07:43:37,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 199 transitions. [2022-11-19 07:43:37,457 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 199 transitions. Word has length 20 [2022-11-19 07:43:37,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:43:37,457 INFO L495 AbstractCegarLoop]: Abstraction has 168 states and 199 transitions. [2022-11-19 07:43:37,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:43:37,458 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 199 transitions. [2022-11-19 07:43:37,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-19 07:43:37,459 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:43:37,459 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:43:37,474 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1a98-fc55-4b76-9f6e-def4e0c3ab70/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 07:43:37,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1a98-fc55-4b76-9f6e-def4e0c3ab70/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:43:37,668 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 07:43:37,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:43:37,669 INFO L85 PathProgramCache]: Analyzing trace with hash -486431260, now seen corresponding path program 1 times [2022-11-19 07:43:37,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:43:37,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468777986] [2022-11-19 07:43:37,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:43:37,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:43:37,866 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 07:43:37,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2034474885] [2022-11-19 07:43:37,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:43:37,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:43:37,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1a98-fc55-4b76-9f6e-def4e0c3ab70/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:43:37,870 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1a98-fc55-4b76-9f6e-def4e0c3ab70/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:43:37,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1a98-fc55-4b76-9f6e-def4e0c3ab70/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 07:43:38,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:43:38,728 INFO L263 TraceCheckSpWp]: Trace formula consists of 1647 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 07:43:38,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:43:38,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:43:38,800 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:43:38,800 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:43:38,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468777986] [2022-11-19 07:43:38,800 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 07:43:38,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2034474885] [2022-11-19 07:43:38,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2034474885] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:43:38,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:43:38,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:43:38,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710731583] [2022-11-19 07:43:38,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:43:38,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:43:38,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:43:38,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:43:38,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:43:38,803 INFO L87 Difference]: Start difference. First operand 168 states and 199 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:43:40,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:43:40,125 INFO L93 Difference]: Finished difference Result 408 states and 486 transitions. [2022-11-19 07:43:40,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:43:40,126 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-19 07:43:40,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:43:40,128 INFO L225 Difference]: With dead ends: 408 [2022-11-19 07:43:40,128 INFO L226 Difference]: Without dead ends: 243 [2022-11-19 07:43:40,129 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:43:40,131 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 68 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-19 07:43:40,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 318 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-19 07:43:40,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2022-11-19 07:43:40,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 211. [2022-11-19 07:43:40,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 185 states have (on average 1.1675675675675676) internal successors, (216), 190 states have internal predecessors, (216), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-19 07:43:40,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 248 transitions. [2022-11-19 07:43:40,177 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 248 transitions. Word has length 28 [2022-11-19 07:43:40,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:43:40,178 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 248 transitions. [2022-11-19 07:43:40,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:43:40,178 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 248 transitions. [2022-11-19 07:43:40,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-19 07:43:40,180 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:43:40,180 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:43:40,197 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1a98-fc55-4b76-9f6e-def4e0c3ab70/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 07:43:40,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1a98-fc55-4b76-9f6e-def4e0c3ab70/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:43:40,381 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 07:43:40,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:43:40,381 INFO L85 PathProgramCache]: Analyzing trace with hash 552609167, now seen corresponding path program 1 times [2022-11-19 07:43:40,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:43:40,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203386645] [2022-11-19 07:43:40,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:43:40,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:43:40,448 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 07:43:40,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [489628942] [2022-11-19 07:43:40,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:43:40,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:43:40,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1a98-fc55-4b76-9f6e-def4e0c3ab70/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:43:40,450 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1a98-fc55-4b76-9f6e-def4e0c3ab70/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:43:40,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1a98-fc55-4b76-9f6e-def4e0c3ab70/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 07:43:40,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:43:40,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-19 07:43:40,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:43:41,013 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:43:41,014 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:43:41,219 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:43:41,220 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:43:41,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203386645] [2022-11-19 07:43:41,220 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 07:43:41,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [489628942] [2022-11-19 07:43:41,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [489628942] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-19 07:43:41,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 07:43:41,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 9 [2022-11-19 07:43:41,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132778227] [2022-11-19 07:43:41,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:43:41,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-19 07:43:41,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:43:41,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-19 07:43:41,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-11-19 07:43:41,223 INFO L87 Difference]: Start difference. First operand 211 states and 248 transitions. Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 6 states have internal predecessors, (26), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-19 07:43:42,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:43:42,709 INFO L93 Difference]: Finished difference Result 801 states and 954 transitions. [2022-11-19 07:43:42,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:43:42,710 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 6 states have internal predecessors, (26), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 32 [2022-11-19 07:43:42,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:43:42,714 INFO L225 Difference]: With dead ends: 801 [2022-11-19 07:43:42,714 INFO L226 Difference]: Without dead ends: 606 [2022-11-19 07:43:42,715 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 51 SyntacticMatches, 4 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-11-19 07:43:42,716 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 1016 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1016 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-19 07:43:42,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1016 Valid, 573 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-19 07:43:42,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2022-11-19 07:43:42,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 356. [2022-11-19 07:43:42,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 320 states have (on average 1.175) internal successors, (376), 326 states have internal predecessors, (376), 22 states have call successors, (22), 10 states have call predecessors, (22), 10 states have return successors, (23), 19 states have call predecessors, (23), 22 states have call successors, (23) [2022-11-19 07:43:42,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 421 transitions. [2022-11-19 07:43:42,749 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 421 transitions. Word has length 32 [2022-11-19 07:43:42,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:43:42,749 INFO L495 AbstractCegarLoop]: Abstraction has 356 states and 421 transitions. [2022-11-19 07:43:42,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 6 states have internal predecessors, (26), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-19 07:43:42,750 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 421 transitions. [2022-11-19 07:43:42,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-19 07:43:42,751 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:43:42,752 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:43:42,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1a98-fc55-4b76-9f6e-def4e0c3ab70/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-19 07:43:42,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1a98-fc55-4b76-9f6e-def4e0c3ab70/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:43:42,959 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 07:43:42,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:43:42,959 INFO L85 PathProgramCache]: Analyzing trace with hash -2121531562, now seen corresponding path program 1 times [2022-11-19 07:43:42,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:43:42,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415154688] [2022-11-19 07:43:42,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:43:42,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:43:43,044 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 07:43:43,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [497784231] [2022-11-19 07:43:43,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:43:43,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:43:43,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1a98-fc55-4b76-9f6e-def4e0c3ab70/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:43:43,046 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1a98-fc55-4b76-9f6e-def4e0c3ab70/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:43:43,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1a98-fc55-4b76-9f6e-def4e0c3ab70/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 07:43:43,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:43:43,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 819 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 07:43:43,701 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:43:43,757 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:43:43,775 INFO L350 Elim1Store]: Elim1 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 15 treesize of output 7 [2022-11-19 07:43:43,785 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-19 07:43:43,785 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:43:43,785 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:43:43,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415154688] [2022-11-19 07:43:43,786 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 07:43:43,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [497784231] [2022-11-19 07:43:43,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [497784231] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:43:43,786 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:43:43,786 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:43:43,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915187144] [2022-11-19 07:43:43,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:43:43,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:43:43,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:43:43,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:43:43,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:43:43,789 INFO L87 Difference]: Start difference. First operand 356 states and 421 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-19 07:43:45,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:43:45,578 INFO L93 Difference]: Finished difference Result 513 states and 616 transitions. [2022-11-19 07:43:45,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:43:45,582 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 57 [2022-11-19 07:43:45,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:43:45,584 INFO L225 Difference]: With dead ends: 513 [2022-11-19 07:43:45,585 INFO L226 Difference]: Without dead ends: 446 [2022-11-19 07:43:45,585 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:43:45,586 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 49 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-19 07:43:45,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 433 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-19 07:43:45,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2022-11-19 07:43:45,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 360. [2022-11-19 07:43:45,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 324 states have (on average 1.1728395061728396) internal successors, (380), 330 states have internal predecessors, (380), 22 states have call successors, (22), 10 states have call predecessors, (22), 10 states have return successors, (23), 19 states have call predecessors, (23), 22 states have call successors, (23) [2022-11-19 07:43:45,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 425 transitions. [2022-11-19 07:43:45,638 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 425 transitions. Word has length 57 [2022-11-19 07:43:45,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:43:45,638 INFO L495 AbstractCegarLoop]: Abstraction has 360 states and 425 transitions. [2022-11-19 07:43:45,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-19 07:43:45,639 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 425 transitions. [2022-11-19 07:43:45,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-19 07:43:45,641 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:43:45,641 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:43:45,650 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1a98-fc55-4b76-9f6e-def4e0c3ab70/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-19 07:43:45,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1a98-fc55-4b76-9f6e-def4e0c3ab70/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-19 07:43:45,850 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 07:43:45,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:43:45,850 INFO L85 PathProgramCache]: Analyzing trace with hash 660071549, now seen corresponding path program 1 times [2022-11-19 07:43:45,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:43:45,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522426047] [2022-11-19 07:43:45,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:43:45,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:43:45,935 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 07:43:45,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1102189710] [2022-11-19 07:43:45,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:43:45,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:43:45,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1a98-fc55-4b76-9f6e-def4e0c3ab70/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:43:45,938 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1a98-fc55-4b76-9f6e-def4e0c3ab70/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:43:45,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1a98-fc55-4b76-9f6e-def4e0c3ab70/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-19 07:43:46,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:43:46,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 986 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-19 07:43:46,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:43:46,667 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-19 07:43:46,667 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:43:46,668 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:43:46,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522426047] [2022-11-19 07:43:46,668 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 07:43:46,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1102189710] [2022-11-19 07:43:46,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1102189710] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:43:46,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:43:46,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:43:46,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748029100] [2022-11-19 07:43:46,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:43:46,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:43:46,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:43:46,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:43:46,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:43:46,671 INFO L87 Difference]: Start difference. First operand 360 states and 425 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-19 07:43:50,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:43:50,246 INFO L93 Difference]: Finished difference Result 688 states and 814 transitions. [2022-11-19 07:43:50,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 07:43:50,247 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) Word has length 64 [2022-11-19 07:43:50,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:43:50,251 INFO L225 Difference]: With dead ends: 688 [2022-11-19 07:43:50,251 INFO L226 Difference]: Without dead ends: 360 [2022-11-19 07:43:50,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:43:50,257 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 17 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-19 07:43:50,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 542 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-11-19 07:43:50,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2022-11-19 07:43:50,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2022-11-19 07:43:50,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 324 states have (on average 1.1728395061728396) internal successors, (380), 330 states have internal predecessors, (380), 22 states have call successors, (22), 10 states have call predecessors, (22), 10 states have return successors, (22), 19 states have call predecessors, (22), 22 states have call successors, (22) [2022-11-19 07:43:50,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 424 transitions. [2022-11-19 07:43:50,324 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 424 transitions. Word has length 64 [2022-11-19 07:43:50,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:43:50,325 INFO L495 AbstractCegarLoop]: Abstraction has 360 states and 424 transitions. [2022-11-19 07:43:50,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-19 07:43:50,326 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 424 transitions. [2022-11-19 07:43:50,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-19 07:43:50,332 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:43:50,332 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:43:50,340 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1a98-fc55-4b76-9f6e-def4e0c3ab70/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-19 07:43:50,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1a98-fc55-4b76-9f6e-def4e0c3ab70/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-19 07:43:50,533 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 07:43:50,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:43:50,533 INFO L85 PathProgramCache]: Analyzing trace with hash -712813337, now seen corresponding path program 1 times [2022-11-19 07:43:50,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:43:50,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815635467] [2022-11-19 07:43:50,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:43:50,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:43:50,592 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 07:43:50,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1245011591] [2022-11-19 07:43:50,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:43:50,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:43:50,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1a98-fc55-4b76-9f6e-def4e0c3ab70/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:43:50,594 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1a98-fc55-4b76-9f6e-def4e0c3ab70/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:43:50,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1a98-fc55-4b76-9f6e-def4e0c3ab70/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-19 07:43:53,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:43:53,428 INFO L263 TraceCheckSpWp]: Trace formula consists of 996 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-19 07:43:53,433 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:43:53,512 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-19 07:43:53,513 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:43:53,513 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:43:53,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815635467] [2022-11-19 07:43:53,513 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 07:43:53,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1245011591] [2022-11-19 07:43:53,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1245011591] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:43:53,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:43:53,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-19 07:43:53,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415435884] [2022-11-19 07:43:53,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:43:53,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 07:43:53,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:43:53,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 07:43:53,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:43:53,516 INFO L87 Difference]: Start difference. First operand 360 states and 424 transitions. Second operand has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-11-19 07:43:56,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:43:56,934 INFO L93 Difference]: Finished difference Result 692 states and 821 transitions. [2022-11-19 07:43:56,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-19 07:43:56,937 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 69 [2022-11-19 07:43:56,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:43:56,940 INFO L225 Difference]: With dead ends: 692 [2022-11-19 07:43:56,940 INFO L226 Difference]: Without dead ends: 363 [2022-11-19 07:43:56,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-11-19 07:43:56,942 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 14 mSDsluCounter, 862 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 1011 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-11-19 07:43:56,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 1011 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-11-19 07:43:56,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2022-11-19 07:43:56,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 363. [2022-11-19 07:43:56,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 326 states have (on average 1.1748466257668713) internal successors, (383), 333 states have internal predecessors, (383), 22 states have call successors, (22), 10 states have call predecessors, (22), 11 states have return successors, (23), 19 states have call predecessors, (23), 22 states have call successors, (23) [2022-11-19 07:43:56,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 428 transitions. [2022-11-19 07:43:56,996 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 428 transitions. Word has length 69 [2022-11-19 07:43:56,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:43:56,998 INFO L495 AbstractCegarLoop]: Abstraction has 363 states and 428 transitions. [2022-11-19 07:43:56,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-11-19 07:43:56,999 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 428 transitions. [2022-11-19 07:43:57,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-19 07:43:57,000 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:43:57,000 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:43:57,018 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1a98-fc55-4b76-9f6e-def4e0c3ab70/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-19 07:43:57,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1a98-fc55-4b76-9f6e-def4e0c3ab70/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:43:57,201 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 07:43:57,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:43:57,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1958213645, now seen corresponding path program 1 times [2022-11-19 07:43:57,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:43:57,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798014127] [2022-11-19 07:43:57,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:43:57,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:43:57,284 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 07:43:57,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [408007299] [2022-11-19 07:43:57,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:43:57,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:43:57,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1a98-fc55-4b76-9f6e-def4e0c3ab70/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:43:57,295 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1a98-fc55-4b76-9f6e-def4e0c3ab70/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:43:57,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1a98-fc55-4b76-9f6e-def4e0c3ab70/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-19 07:44:50,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:44:50,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 1026 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-19 07:44:50,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:44:50,666 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 20 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-19 07:44:50,669 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:44:50,841 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-19 07:44:50,841 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:44:50,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798014127] [2022-11-19 07:44:50,842 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 07:44:50,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [408007299] [2022-11-19 07:44:50,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [408007299] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:44:50,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1141321882] [2022-11-19 07:44:50,873 INFO L159 IcfgInterpreter]: Started Sifa with 56 locations of interest [2022-11-19 07:44:50,873 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:44:50,878 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:44:50,885 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:44:50,885 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:44:51,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,008 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:44:51,037 INFO L321 Elim1Store]: treesize reduction 31, result has 35.4 percent of original size [2022-11-19 07:44:51,038 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 54 treesize of output 93 [2022-11-19 07:44:51,061 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-19 07:44:51,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,142 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 27 [2022-11-19 07:44:51,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,216 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 07:44:51,217 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-19 07:44:51,231 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 07:44:51,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,243 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-19 07:44:51,256 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 07:44:51,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,400 INFO L321 Elim1Store]: treesize reduction 56, result has 35.6 percent of original size [2022-11-19 07:44:51,400 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 109 treesize of output 117 [2022-11-19 07:44:51,416 INFO L350 Elim1Store]: Elim1 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 63 treesize of output 61 [2022-11-19 07:44:51,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,445 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:44:51,451 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 27 treesize of output 31 [2022-11-19 07:44:51,500 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:44:51,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,517 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 88 [2022-11-19 07:44:51,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,631 INFO L321 Elim1Store]: treesize reduction 40, result has 37.5 percent of original size [2022-11-19 07:44:51,631 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 48 [2022-11-19 07:44:51,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,668 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-19 07:44:51,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,768 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-11-19 07:44:51,768 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 37 treesize of output 61 [2022-11-19 07:44:51,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,808 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-19 07:44:52,971 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-19 07:44:52,992 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-19 07:44:53,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:53,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:53,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:53,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:53,027 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 9897398 treesize of output 8253390 [2022-11-19 07:44:54,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:54,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:54,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:54,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:54,034 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 457 treesize of output 367 [2022-11-19 07:44:54,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:54,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:54,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:54,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:54,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:54,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:54,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:54,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:54,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:54,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:54,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:54,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:54,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:54,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:54,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:54,163 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 28 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 8253076 treesize of output 5376288 [2022-11-19 07:44:54,254 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:44:54,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:54,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:54,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:54,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:54,417 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 93836999 treesize of output 72466161 [2022-11-19 07:44:54,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:54,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:54,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:54,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:54,464 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 92193097 treesize of output 72466173 [2022-11-19 07:44:54,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:54,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:54,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:54,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:54,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:54,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:54,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:54,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:54,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:54,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:54,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:54,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:54,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:54,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:54,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:54,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:54,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:54,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:54,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:54,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:54,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:54,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:54,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:54,755 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:44:54,758 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 36 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 8253091 treesize of output 5376294 [2022-11-19 07:44:54,823 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-19 07:44:54,844 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-19 07:44:55,361 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-19 07:44:55,365 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 25 treesize of output 1 [2022-11-19 07:44:55,368 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 25 treesize of output 1 [2022-11-19 07:44:55,402 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-19 07:44:55,411 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-19 07:44:55,533 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2022-11-19 07:44:55,549 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2022-11-19 07:44:55,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:55,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:55,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:55,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:55,583 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 93837028 treesize of output 72466172 [2022-11-19 07:44:55,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:55,708 INFO L190 IndexEqualityManager]: detected not equals via solver