./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_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_18b5112a-a7cb-4c0b-be8c-f4f93c2fccc3/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5112a-a7cb-4c0b-be8c-f4f93c2fccc3/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_18b5112a-a7cb-4c0b-be8c-f4f93c2fccc3/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5112a-a7cb-4c0b-be8c-f4f93c2fccc3/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5112a-a7cb-4c0b-be8c-f4f93c2fccc3/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_18b5112a-a7cb-4c0b-be8c-f4f93c2fccc3/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 4a058bd9944921e52018f99044f11f694f824f3f09daf510330544b4558ba193 --- 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 07:14:42,803 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:14:42,805 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:14:42,835 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:14:42,835 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:14:42,839 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:14:42,842 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:14:42,850 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:14:42,853 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:14:42,858 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:14:42,860 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:14:42,862 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:14:42,862 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:14:42,865 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:14:42,867 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:14:42,868 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:14:42,870 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:14:42,871 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:14:42,872 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:14:42,879 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:14:42,880 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:14:42,882 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:14:42,884 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:14:42,885 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:14:42,893 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:14:42,894 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:14:42,894 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:14:42,896 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:14:42,896 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:14:42,898 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:14:42,899 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:14:42,900 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:14:42,902 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:14:42,903 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:14:42,904 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:14:42,904 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:14:42,905 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:14:42,905 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:14:42,906 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:14:42,907 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:14:42,907 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:14:42,908 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5112a-a7cb-4c0b-be8c-f4f93c2fccc3/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 07:14:42,945 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:14:42,945 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:14:42,945 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:14:42,946 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:14:42,950 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:14:42,950 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:14:42,950 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:14:42,951 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:14:42,951 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:14:42,951 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:14:42,952 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:14:42,953 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:14:42,953 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:14:42,953 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:14:42,953 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:14:42,954 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:14:42,954 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:14:42,954 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:14:42,955 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:14:42,955 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 07:14:42,955 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:14:42,956 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 07:14:42,956 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:14:42,956 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:14:42,957 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:14:42,957 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:14:42,957 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 07:14:42,957 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:14:42,958 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:14:42,958 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:14:42,958 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:14:42,959 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:14:42,959 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:14:42,959 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:14:42,959 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:14:42,960 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:14:42,960 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:14:42,960 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:14:42,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:14:42,961 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:14:42,961 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:14:42,961 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_18b5112a-a7cb-4c0b-be8c-f4f93c2fccc3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5112a-a7cb-4c0b-be8c-f4f93c2fccc3/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4a058bd9944921e52018f99044f11f694f824f3f09daf510330544b4558ba193 [2022-11-19 07:14:43,274 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:14:43,310 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:14:43,313 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:14:43,315 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:14:43,315 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:14:43,317 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5112a-a7cb-4c0b-be8c-f4f93c2fccc3/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i [2022-11-19 07:14:43,400 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5112a-a7cb-4c0b-be8c-f4f93c2fccc3/bin/utaipan-I9t0OCRTmS/data/0f043ed72/9213bc9786f4423ab8ee7cf8d3015c02/FLAGb80bce0c6 [2022-11-19 07:14:44,056 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:14:44,057 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5112a-a7cb-4c0b-be8c-f4f93c2fccc3/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i [2022-11-19 07:14:44,094 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5112a-a7cb-4c0b-be8c-f4f93c2fccc3/bin/utaipan-I9t0OCRTmS/data/0f043ed72/9213bc9786f4423ab8ee7cf8d3015c02/FLAGb80bce0c6 [2022-11-19 07:14:44,267 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5112a-a7cb-4c0b-be8c-f4f93c2fccc3/bin/utaipan-I9t0OCRTmS/data/0f043ed72/9213bc9786f4423ab8ee7cf8d3015c02 [2022-11-19 07:14:44,270 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:14:44,271 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:14:44,273 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:14:44,274 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:14:44,286 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:14:44,286 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:14:44" (1/1) ... [2022-11-19 07:14:44,287 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@399e3415 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:14:44, skipping insertion in model container [2022-11-19 07:14:44,288 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:14:44" (1/1) ... [2022-11-19 07:14:44,297 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:14:44,362 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:14:45,005 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_18b5112a-a7cb-4c0b-be8c-f4f93c2fccc3/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i[44118,44131] [2022-11-19 07:14:45,020 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_18b5112a-a7cb-4c0b-be8c-f4f93c2fccc3/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i[44660,44673] [2022-11-19 07:14:45,158 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_18b5112a-a7cb-4c0b-be8c-f4f93c2fccc3/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i[56247,56260] [2022-11-19 07:14:45,171 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_18b5112a-a7cb-4c0b-be8c-f4f93c2fccc3/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i[56368,56381] [2022-11-19 07:14:45,200 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:14:45,212 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:14:45,241 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_18b5112a-a7cb-4c0b-be8c-f4f93c2fccc3/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i[44118,44131] [2022-11-19 07:14:45,243 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_18b5112a-a7cb-4c0b-be8c-f4f93c2fccc3/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i[44660,44673] [2022-11-19 07:14:45,295 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_18b5112a-a7cb-4c0b-be8c-f4f93c2fccc3/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i[56247,56260] [2022-11-19 07:14:45,296 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_18b5112a-a7cb-4c0b-be8c-f4f93c2fccc3/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i[56368,56381] [2022-11-19 07:14:45,306 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:14:45,357 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:14:45,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:14:45 WrapperNode [2022-11-19 07:14:45,358 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:14:45,359 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:14:45,359 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:14:45,359 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:14:45,365 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:14:45" (1/1) ... [2022-11-19 07:14:45,417 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:14:45" (1/1) ... [2022-11-19 07:14:45,523 INFO L138 Inliner]: procedures = 282, calls = 347, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1195 [2022-11-19 07:14:45,523 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:14:45,524 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:14:45,524 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:14:45,524 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:14:45,533 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:14:45" (1/1) ... [2022-11-19 07:14:45,534 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:14:45" (1/1) ... [2022-11-19 07:14:45,545 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:14:45" (1/1) ... [2022-11-19 07:14:45,545 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:14:45" (1/1) ... [2022-11-19 07:14:45,624 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:14:45" (1/1) ... [2022-11-19 07:14:45,636 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:14:45" (1/1) ... [2022-11-19 07:14:45,655 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:14:45" (1/1) ... [2022-11-19 07:14:45,659 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:14:45" (1/1) ... [2022-11-19 07:14:45,678 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:14:45,686 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:14:45,687 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:14:45,687 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:14:45,688 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:14:45" (1/1) ... [2022-11-19 07:14:45,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:14:45,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5112a-a7cb-4c0b-be8c-f4f93c2fccc3/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:14:45,724 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5112a-a7cb-4c0b-be8c-f4f93c2fccc3/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:14:45,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5112a-a7cb-4c0b-be8c-f4f93c2fccc3/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:14:45,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:14:45,777 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-19 07:14:45,777 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 07:14:45,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:14:45,777 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2022-11-19 07:14:45,777 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2022-11-19 07:14:45,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 07:14:45,778 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-19 07:14:45,778 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-19 07:14:45,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 07:14:45,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 07:14:45,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:14:45,778 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2022-11-19 07:14:45,778 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2022-11-19 07:14:45,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 07:14:45,779 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2022-11-19 07:14:45,779 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2022-11-19 07:14:45,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:14:45,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:14:45,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:14:46,038 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:14:46,040 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:14:47,591 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:14:48,070 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:14:48,070 INFO L300 CfgBuilder]: Removed 72 assume(true) statements. [2022-11-19 07:14:48,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:14:48 BoogieIcfgContainer [2022-11-19 07:14:48,073 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:14:48,076 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:14:48,076 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:14:48,079 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:14:48,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:14:44" (1/3) ... [2022-11-19 07:14:48,080 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36d31833 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:14:48, skipping insertion in model container [2022-11-19 07:14:48,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:14:45" (2/3) ... [2022-11-19 07:14:48,081 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36d31833 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:14:48, skipping insertion in model container [2022-11-19 07:14:48,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:14:48" (3/3) ... [2022-11-19 07:14:48,082 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test6-2.i [2022-11-19 07:14:48,102 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:14:48,102 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-19 07:14:48,157 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:14:48,164 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;@12589bdd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:14:48,164 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-19 07:14:48,169 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 07:14:48,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-19 07:14:48,177 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:14:48,177 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:14:48,178 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 07:14:48,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:14:48,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1734874149, now seen corresponding path program 1 times [2022-11-19 07:14:48,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:14:48,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433467635] [2022-11-19 07:14:48,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:14:48,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:14:48,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:14:48,371 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 07:14:48,371 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:14:48,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433467635] [2022-11-19 07:14:48,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433467635] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:14:48,373 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:14:48,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:14:48,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143820617] [2022-11-19 07:14:48,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:14:48,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 07:14:48,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:14:48,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 07:14:48,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 07:14:48,412 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 07:14:49,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:14:49,020 INFO L93 Difference]: Finished difference Result 317 states and 538 transitions. [2022-11-19 07:14:49,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 07:14:49,026 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 07:14:49,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:14:49,035 INFO L225 Difference]: With dead ends: 317 [2022-11-19 07:14:49,035 INFO L226 Difference]: Without dead ends: 157 [2022-11-19 07:14:49,039 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 07:14:49,043 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-11-19 07:14:49,044 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 162 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-19 07:14:49,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2022-11-19 07:14:49,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2022-11-19 07:14:49,089 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 07:14:49,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 188 transitions. [2022-11-19 07:14:49,093 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 188 transitions. Word has length 7 [2022-11-19 07:14:49,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:14:49,094 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 188 transitions. [2022-11-19 07:14:49,094 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 07:14:49,094 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 188 transitions. [2022-11-19 07:14:49,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-19 07:14:49,095 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:14:49,095 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:14:49,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:14:49,096 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 07:14:49,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:14:49,097 INFO L85 PathProgramCache]: Analyzing trace with hash 716431104, now seen corresponding path program 1 times [2022-11-19 07:14:49,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:14:49,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185387655] [2022-11-19 07:14:49,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:14:49,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:14:49,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:14:49,342 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 07:14:49,342 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:14:49,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185387655] [2022-11-19 07:14:49,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185387655] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:14:49,348 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:14:49,349 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:14:49,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526823733] [2022-11-19 07:14:49,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:14:49,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:14:49,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:14:49,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:14:49,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:14:49,352 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 07:14:50,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:14:50,754 INFO L93 Difference]: Finished difference Result 324 states and 391 transitions. [2022-11-19 07:14:50,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:14:50,756 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 07:14:50,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:14:50,758 INFO L225 Difference]: With dead ends: 324 [2022-11-19 07:14:50,759 INFO L226 Difference]: Without dead ends: 232 [2022-11-19 07:14:50,759 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 07:14:50,761 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 74 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s 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, 1.3s IncrementalHoareTripleChecker+Time [2022-11-19 07:14:50,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 448 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-19 07:14:50,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2022-11-19 07:14:50,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 159. [2022-11-19 07:14:50,785 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 07:14:50,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 190 transitions. [2022-11-19 07:14:50,793 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 190 transitions. Word has length 9 [2022-11-19 07:14:50,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:14:50,794 INFO L495 AbstractCegarLoop]: Abstraction has 159 states and 190 transitions. [2022-11-19 07:14:50,794 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 07:14:50,795 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 190 transitions. [2022-11-19 07:14:50,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-19 07:14:50,795 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:14:50,795 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 07:14:50,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:14:50,796 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 07:14:50,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:14:50,797 INFO L85 PathProgramCache]: Analyzing trace with hash -1588621598, now seen corresponding path program 1 times [2022-11-19 07:14:50,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:14:50,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982075720] [2022-11-19 07:14:50,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:14:50,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:14:50,842 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 07:14:50,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [851847811] [2022-11-19 07:14:50,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:14:50,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:14:50,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5112a-a7cb-4c0b-be8c-f4f93c2fccc3/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:14:50,846 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5112a-a7cb-4c0b-be8c-f4f93c2fccc3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:14:50,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5112a-a7cb-4c0b-be8c-f4f93c2fccc3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 07:14:52,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:14:52,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-19 07:14:52,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:14:52,502 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 07:14:52,502 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:14:52,503 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:14:52,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982075720] [2022-11-19 07:14:52,506 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 07:14:52,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [851847811] [2022-11-19 07:14:52,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [851847811] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:14:52,507 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:14:52,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 07:14:52,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255174419] [2022-11-19 07:14:52,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:14:52,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-19 07:14:52,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:14:52,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-19 07:14:52,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:14:52,509 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 07:14:56,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:14:56,556 INFO L93 Difference]: Finished difference Result 170 states and 201 transitions. [2022-11-19 07:14:56,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 07:14:56,556 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 07:14:56,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:14:56,558 INFO L225 Difference]: With dead ends: 170 [2022-11-19 07:14:56,558 INFO L226 Difference]: Without dead ends: 168 [2022-11-19 07:14:56,559 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 07:14:56,559 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 125 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s 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, 4.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:14:56,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 737 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-11-19 07:14:56,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2022-11-19 07:14:56,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2022-11-19 07:14:56,579 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 07:14:56,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 199 transitions. [2022-11-19 07:14:56,581 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 199 transitions. Word has length 20 [2022-11-19 07:14:56,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:14:56,581 INFO L495 AbstractCegarLoop]: Abstraction has 168 states and 199 transitions. [2022-11-19 07:14:56,582 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 07:14:56,582 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 199 transitions. [2022-11-19 07:14:56,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-19 07:14:56,583 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:14:56,583 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 07:14:56,591 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5112a-a7cb-4c0b-be8c-f4f93c2fccc3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-19 07:14:56,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5112a-a7cb-4c0b-be8c-f4f93c2fccc3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:14:56,791 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 07:14:56,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:14:56,792 INFO L85 PathProgramCache]: Analyzing trace with hash -486431260, now seen corresponding path program 1 times [2022-11-19 07:14:56,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:14:56,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345871189] [2022-11-19 07:14:56,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:14:56,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:14:56,967 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 07:14:56,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [488940783] [2022-11-19 07:14:56,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:14:56,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:14:56,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5112a-a7cb-4c0b-be8c-f4f93c2fccc3/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:14:56,968 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5112a-a7cb-4c0b-be8c-f4f93c2fccc3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:14:56,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5112a-a7cb-4c0b-be8c-f4f93c2fccc3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 07:14:57,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:14:57,788 INFO L263 TraceCheckSpWp]: Trace formula consists of 1647 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 07:14:57,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:14:57,888 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 07:14:57,895 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:14:57,895 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:14:57,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345871189] [2022-11-19 07:14:57,895 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 07:14:57,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [488940783] [2022-11-19 07:14:57,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [488940783] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:14:57,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:14:57,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:14:57,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301507920] [2022-11-19 07:14:57,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:14:57,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:14:57,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:14:57,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:14:57,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:14:57,900 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 07:14:59,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:14:59,148 INFO L93 Difference]: Finished difference Result 408 states and 486 transitions. [2022-11-19 07:14:59,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:14:59,149 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 07:14:59,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:14:59,151 INFO L225 Difference]: With dead ends: 408 [2022-11-19 07:14:59,151 INFO L226 Difference]: Without dead ends: 243 [2022-11-19 07:14:59,152 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 07:14:59,153 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, 1.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:14:59,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 318 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-19 07:14:59,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2022-11-19 07:14:59,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 211. [2022-11-19 07:14:59,183 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 07:14:59,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 248 transitions. [2022-11-19 07:14:59,185 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 248 transitions. Word has length 28 [2022-11-19 07:14:59,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:14:59,185 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 248 transitions. [2022-11-19 07:14:59,185 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 07:14:59,186 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 248 transitions. [2022-11-19 07:14:59,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-19 07:14:59,187 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:14:59,187 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 07:14:59,207 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5112a-a7cb-4c0b-be8c-f4f93c2fccc3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-19 07:14:59,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5112a-a7cb-4c0b-be8c-f4f93c2fccc3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:14:59,397 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 07:14:59,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:14:59,397 INFO L85 PathProgramCache]: Analyzing trace with hash 552609167, now seen corresponding path program 1 times [2022-11-19 07:14:59,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:14:59,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337320777] [2022-11-19 07:14:59,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:14:59,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:14:59,443 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 07:14:59,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [486657806] [2022-11-19 07:14:59,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:14:59,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:14:59,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5112a-a7cb-4c0b-be8c-f4f93c2fccc3/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:14:59,448 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5112a-a7cb-4c0b-be8c-f4f93c2fccc3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:14:59,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5112a-a7cb-4c0b-be8c-f4f93c2fccc3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 07:14:59,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:14:59,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-19 07:14:59,903 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:15:00,026 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 07:15:00,026 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:15:00,172 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 07:15:00,173 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:15:00,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337320777] [2022-11-19 07:15:00,173 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 07:15:00,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [486657806] [2022-11-19 07:15:00,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [486657806] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-19 07:15:00,174 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 07:15:00,174 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 9 [2022-11-19 07:15:00,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364048675] [2022-11-19 07:15:00,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:15:00,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-19 07:15:00,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:15:00,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-19 07:15:00,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-11-19 07:15:00,176 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 07:15:01,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:15:01,492 INFO L93 Difference]: Finished difference Result 801 states and 954 transitions. [2022-11-19 07:15:01,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:15:01,492 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 07:15:01,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:15:01,497 INFO L225 Difference]: With dead ends: 801 [2022-11-19 07:15:01,497 INFO L226 Difference]: Without dead ends: 606 [2022-11-19 07:15:01,499 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 07:15:01,499 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 1016 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s 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, 1.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:15:01,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1016 Valid, 573 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-19 07:15:01,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2022-11-19 07:15:01,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 356. [2022-11-19 07:15:01,530 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 07:15:01,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 421 transitions. [2022-11-19 07:15:01,533 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 421 transitions. Word has length 32 [2022-11-19 07:15:01,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:15:01,533 INFO L495 AbstractCegarLoop]: Abstraction has 356 states and 421 transitions. [2022-11-19 07:15:01,534 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 07:15:01,536 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 421 transitions. [2022-11-19 07:15:01,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-19 07:15:01,542 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:15:01,554 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 07:15:01,566 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5112a-a7cb-4c0b-be8c-f4f93c2fccc3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-19 07:15:01,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5112a-a7cb-4c0b-be8c-f4f93c2fccc3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:15:01,762 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 07:15:01,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:15:01,763 INFO L85 PathProgramCache]: Analyzing trace with hash -2121531562, now seen corresponding path program 1 times [2022-11-19 07:15:01,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:15:01,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339303229] [2022-11-19 07:15:01,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:15:01,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:15:01,823 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 07:15:01,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1204702771] [2022-11-19 07:15:01,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:15:01,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:15:01,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5112a-a7cb-4c0b-be8c-f4f93c2fccc3/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:15:01,825 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5112a-a7cb-4c0b-be8c-f4f93c2fccc3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:15:01,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5112a-a7cb-4c0b-be8c-f4f93c2fccc3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 07:15:02,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:15:02,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 819 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 07:15:02,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:15:02,464 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 07:15:02,478 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 07:15:02,489 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 07:15:02,490 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:15:02,490 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:15:02,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339303229] [2022-11-19 07:15:02,490 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 07:15:02,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1204702771] [2022-11-19 07:15:02,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1204702771] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:15:02,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:15:02,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:15:02,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921303447] [2022-11-19 07:15:02,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:15:02,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:15:02,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:15:02,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:15:02,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:15:02,493 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 07:15:04,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:15:04,091 INFO L93 Difference]: Finished difference Result 513 states and 616 transitions. [2022-11-19 07:15:04,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:15:04,095 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 07:15:04,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:15:04,098 INFO L225 Difference]: With dead ends: 513 [2022-11-19 07:15:04,098 INFO L226 Difference]: Without dead ends: 446 [2022-11-19 07:15:04,099 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 07:15:04,100 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 49 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s 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, 1.6s IncrementalHoareTripleChecker+Time [2022-11-19 07:15:04,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 433 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-19 07:15:04,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2022-11-19 07:15:04,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 360. [2022-11-19 07:15:04,133 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 07:15:04,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 425 transitions. [2022-11-19 07:15:04,136 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 425 transitions. Word has length 57 [2022-11-19 07:15:04,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:15:04,136 INFO L495 AbstractCegarLoop]: Abstraction has 360 states and 425 transitions. [2022-11-19 07:15:04,136 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 07:15:04,137 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 425 transitions. [2022-11-19 07:15:04,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-19 07:15:04,139 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:15:04,139 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 07:15:04,152 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5112a-a7cb-4c0b-be8c-f4f93c2fccc3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-19 07:15:04,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5112a-a7cb-4c0b-be8c-f4f93c2fccc3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-19 07:15:04,347 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 07:15:04,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:15:04,347 INFO L85 PathProgramCache]: Analyzing trace with hash 660071549, now seen corresponding path program 1 times [2022-11-19 07:15:04,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:15:04,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738797278] [2022-11-19 07:15:04,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:15:04,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:15:04,412 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 07:15:04,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1116371101] [2022-11-19 07:15:04,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:15:04,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:15:04,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5112a-a7cb-4c0b-be8c-f4f93c2fccc3/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:15:04,414 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5112a-a7cb-4c0b-be8c-f4f93c2fccc3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:15:04,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5112a-a7cb-4c0b-be8c-f4f93c2fccc3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-19 07:15:05,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:15:05,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 986 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-19 07:15:05,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:15:05,116 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 07:15:05,116 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:15:05,116 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:15:05,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738797278] [2022-11-19 07:15:05,117 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 07:15:05,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1116371101] [2022-11-19 07:15:05,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1116371101] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:15:05,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:15:05,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:15:05,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188259821] [2022-11-19 07:15:05,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:15:05,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:15:05,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:15:05,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:15:05,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:15:05,120 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 07:15:08,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:15:08,237 INFO L93 Difference]: Finished difference Result 688 states and 814 transitions. [2022-11-19 07:15:08,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 07:15:08,238 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 07:15:08,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:15:08,240 INFO L225 Difference]: With dead ends: 688 [2022-11-19 07:15:08,240 INFO L226 Difference]: Without dead ends: 360 [2022-11-19 07:15:08,241 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 07:15:08,242 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 17 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s 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, 3.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:15:08,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 542 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-11-19 07:15:08,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2022-11-19 07:15:08,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2022-11-19 07:15:08,265 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 07:15:08,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 424 transitions. [2022-11-19 07:15:08,267 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 424 transitions. Word has length 64 [2022-11-19 07:15:08,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:15:08,268 INFO L495 AbstractCegarLoop]: Abstraction has 360 states and 424 transitions. [2022-11-19 07:15:08,268 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 07:15:08,268 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 424 transitions. [2022-11-19 07:15:08,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-19 07:15:08,270 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:15:08,270 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 07:15:08,283 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5112a-a7cb-4c0b-be8c-f4f93c2fccc3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-19 07:15:08,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5112a-a7cb-4c0b-be8c-f4f93c2fccc3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:15:08,479 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 07:15:08,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:15:08,479 INFO L85 PathProgramCache]: Analyzing trace with hash -712813337, now seen corresponding path program 1 times [2022-11-19 07:15:08,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:15:08,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589158106] [2022-11-19 07:15:08,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:15:08,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:15:08,541 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 07:15:08,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1557368654] [2022-11-19 07:15:08,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:15:08,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:15:08,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5112a-a7cb-4c0b-be8c-f4f93c2fccc3/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:15:08,543 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5112a-a7cb-4c0b-be8c-f4f93c2fccc3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:15:08,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5112a-a7cb-4c0b-be8c-f4f93c2fccc3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-19 07:15:11,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:15:11,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 996 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-19 07:15:11,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:15:11,335 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 07:15:11,335 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:15:11,335 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:15:11,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589158106] [2022-11-19 07:15:11,335 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 07:15:11,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1557368654] [2022-11-19 07:15:11,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1557368654] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:15:11,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:15:11,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-19 07:15:11,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281149515] [2022-11-19 07:15:11,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:15:11,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 07:15:11,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:15:11,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 07:15:11,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:15:11,337 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 07:15:14,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:15:14,586 INFO L93 Difference]: Finished difference Result 692 states and 821 transitions. [2022-11-19 07:15:14,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-19 07:15:14,588 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 07:15:14,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:15:14,590 INFO L225 Difference]: With dead ends: 692 [2022-11-19 07:15:14,591 INFO L226 Difference]: Without dead ends: 363 [2022-11-19 07:15:14,591 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 07:15:14,592 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 14 mSDsluCounter, 862 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s 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, 3.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:15:14,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 1011 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-11-19 07:15:14,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2022-11-19 07:15:14,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 363. [2022-11-19 07:15:14,616 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 07:15:14,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 428 transitions. [2022-11-19 07:15:14,618 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 428 transitions. Word has length 69 [2022-11-19 07:15:14,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:15:14,619 INFO L495 AbstractCegarLoop]: Abstraction has 363 states and 428 transitions. [2022-11-19 07:15:14,619 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 07:15:14,619 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 428 transitions. [2022-11-19 07:15:14,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-19 07:15:14,620 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:15:14,621 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 07:15:14,643 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5112a-a7cb-4c0b-be8c-f4f93c2fccc3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-11-19 07:15:14,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5112a-a7cb-4c0b-be8c-f4f93c2fccc3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:15:14,835 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 07:15:14,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:15:14,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1958213645, now seen corresponding path program 1 times [2022-11-19 07:15:14,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:15:14,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963239689] [2022-11-19 07:15:14,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:15:14,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:15:14,915 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 07:15:14,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1372219591] [2022-11-19 07:15:14,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:15:14,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:15:14,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5112a-a7cb-4c0b-be8c-f4f93c2fccc3/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:15:14,917 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5112a-a7cb-4c0b-be8c-f4f93c2fccc3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:15:14,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5112a-a7cb-4c0b-be8c-f4f93c2fccc3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-19 07:16:03,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:16:03,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 1026 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-19 07:16:03,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:16:03,767 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 07:16:03,768 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:16:03,892 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 07:16:03,893 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:16:03,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963239689] [2022-11-19 07:16:03,893 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 07:16:03,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1372219591] [2022-11-19 07:16:03,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1372219591] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:16:03,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [145425340] [2022-11-19 07:16:03,913 INFO L159 IcfgInterpreter]: Started Sifa with 56 locations of interest [2022-11-19 07:16:03,913 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:16:03,917 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:16:03,922 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:16:03,923 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:16:04,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:04,010 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:16:04,034 INFO L321 Elim1Store]: treesize reduction 31, result has 35.4 percent of original size [2022-11-19 07:16:04,035 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 07:16:04,056 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 07:16:04,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:04,099 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 07:16:04,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:04,201 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 07:16:04,202 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 07:16:04,216 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 07:16:04,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:04,227 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 07:16:04,241 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 07:16:04,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:04,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:04,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:04,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:04,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:04,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:04,415 INFO L321 Elim1Store]: treesize reduction 56, result has 35.6 percent of original size [2022-11-19 07:16:04,416 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 07:16:04,430 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 07:16:04,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:04,456 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:16:04,462 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 07:16:04,510 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:16:04,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:04,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:04,526 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 07:16:04,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:04,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:04,629 INFO L321 Elim1Store]: treesize reduction 40, result has 37.5 percent of original size [2022-11-19 07:16:04,629 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 07:16:04,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:04,661 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 07:16:04,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:04,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:04,753 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-11-19 07:16:04,754 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 07:16:04,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:04,788 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 07:16:05,910 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 07:16:05,931 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 07:16:05,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:05,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:05,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:05,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:05,967 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 07:16:07,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:07,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:07,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:07,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:07,149 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 07:16:07,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:07,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:07,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:07,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:07,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:07,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:07,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:07,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:07,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:07,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:07,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:07,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:07,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:07,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:07,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:07,307 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 07:16:07,371 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:16:07,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:07,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:07,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:07,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:07,535 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 07:16:07,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:07,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:07,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:07,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:07,585 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 07:16:07,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:07,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:07,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:07,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:07,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:07,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:07,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:07,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:07,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:07,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:07,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:07,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:07,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:07,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:07,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:07,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:07,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:07,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:07,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:07,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:07,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:07,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:07,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:07,849 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:16:07,852 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 07:16:07,907 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 07:16:07,925 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 07:16:08,452 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 07:16:08,456 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 07:16:08,460 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 07:16:08,493 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 07:16:08,501 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 07:16:08,644 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 07:16:08,659 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 07:16:08,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:08,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:08,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:08,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:08,693 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 07:16:08,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:08,806 INFO L190 IndexEqualityManager]: detected not equals via solver