./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a940a5-f83d-469e-8d80-fd08d46766e2/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a940a5-f83d-469e-8d80-fd08d46766e2/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a940a5-f83d-469e-8d80-fd08d46766e2/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a940a5-f83d-469e-8d80-fd08d46766e2/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a940a5-f83d-469e-8d80-fd08d46766e2/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a940a5-f83d-469e-8d80-fd08d46766e2/bin/utaipan-gh47qXpMRh --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 c78ec383567aee735f8895b5666134248c3b9de1b96295d83b3c1c6979534c2b --- 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-2329fc7 [2022-12-14 11:19:34,830 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 11:19:34,831 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 11:19:34,845 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 11:19:34,845 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 11:19:34,846 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 11:19:34,847 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 11:19:34,848 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 11:19:34,849 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 11:19:34,850 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 11:19:34,851 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 11:19:34,852 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 11:19:34,852 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 11:19:34,853 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 11:19:34,853 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 11:19:34,854 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 11:19:34,855 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 11:19:34,856 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 11:19:34,857 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 11:19:34,858 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 11:19:34,859 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 11:19:34,860 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 11:19:34,861 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 11:19:34,862 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 11:19:34,864 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 11:19:34,864 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 11:19:34,864 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 11:19:34,865 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 11:19:34,865 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 11:19:34,866 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 11:19:34,866 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 11:19:34,867 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 11:19:34,867 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 11:19:34,868 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 11:19:34,869 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 11:19:34,869 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 11:19:34,870 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 11:19:34,870 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 11:19:34,870 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 11:19:34,871 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 11:19:34,871 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 11:19:34,872 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a940a5-f83d-469e-8d80-fd08d46766e2/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 11:19:34,892 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 11:19:34,892 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 11:19:34,892 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 11:19:34,892 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 11:19:34,893 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 11:19:34,893 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 11:19:34,893 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 11:19:34,893 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 11:19:34,893 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 11:19:34,893 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 11:19:34,893 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 11:19:34,894 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 11:19:34,894 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 11:19:34,894 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 11:19:34,894 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 11:19:34,894 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 11:19:34,894 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 11:19:34,894 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 11:19:34,895 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 11:19:34,895 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 11:19:34,895 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 11:19:34,895 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 11:19:34,895 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 11:19:34,895 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 11:19:34,895 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 11:19:34,895 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 11:19:34,895 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 11:19:34,895 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 11:19:34,896 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 11:19:34,896 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 11:19:34,896 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 11:19:34,896 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 11:19:34,896 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:19:34,896 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 11:19:34,896 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 11:19:34,896 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 11:19:34,896 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 11:19:34,896 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 11:19:34,899 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 11:19:34,899 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 11:19:34,900 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 11:19:34,900 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_a9a940a5-f83d-469e-8d80-fd08d46766e2/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a940a5-f83d-469e-8d80-fd08d46766e2/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c78ec383567aee735f8895b5666134248c3b9de1b96295d83b3c1c6979534c2b [2022-12-14 11:19:35,071 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 11:19:35,091 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 11:19:35,093 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 11:19:35,094 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 11:19:35,095 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 11:19:35,096 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a940a5-f83d-469e-8d80-fd08d46766e2/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-2.i [2022-12-14 11:19:37,701 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 11:19:37,911 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 11:19:37,911 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a940a5-f83d-469e-8d80-fd08d46766e2/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-2.i [2022-12-14 11:19:37,922 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a940a5-f83d-469e-8d80-fd08d46766e2/bin/utaipan-gh47qXpMRh/data/a803d09ae/55133977549a4f0d85cb24b1b644461f/FLAG3cfae1bae [2022-12-14 11:19:38,259 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a940a5-f83d-469e-8d80-fd08d46766e2/bin/utaipan-gh47qXpMRh/data/a803d09ae/55133977549a4f0d85cb24b1b644461f [2022-12-14 11:19:38,261 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 11:19:38,263 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 11:19:38,264 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 11:19:38,264 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 11:19:38,267 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 11:19:38,267 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:19:38" (1/1) ... [2022-12-14 11:19:38,268 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6aa68e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:19:38, skipping insertion in model container [2022-12-14 11:19:38,268 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:19:38" (1/1) ... [2022-12-14 11:19:38,273 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 11:19:38,316 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 11:19:38,625 WARN L237 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_a9a940a5-f83d-469e-8d80-fd08d46766e2/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-2.i[33021,33034] [2022-12-14 11:19:38,732 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 11:19:38,735 WARN L237 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_a9a940a5-f83d-469e-8d80-fd08d46766e2/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-2.i[49681,49694] [2022-12-14 11:19:38,749 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:19:38,759 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 11:19:38,787 WARN L237 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_a9a940a5-f83d-469e-8d80-fd08d46766e2/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-2.i[33021,33034] [2022-12-14 11:19:38,843 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 11:19:38,845 WARN L237 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_a9a940a5-f83d-469e-8d80-fd08d46766e2/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-2.i[49681,49694] [2022-12-14 11:19:38,853 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:19:38,882 INFO L208 MainTranslator]: Completed translation [2022-12-14 11:19:38,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:19:38 WrapperNode [2022-12-14 11:19:38,882 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 11:19:38,883 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 11:19:38,883 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 11:19:38,884 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 11:19:38,891 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:19:38" (1/1) ... [2022-12-14 11:19:38,922 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:19:38" (1/1) ... [2022-12-14 11:19:38,981 INFO L138 Inliner]: procedures = 177, calls = 439, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1549 [2022-12-14 11:19:38,981 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 11:19:38,982 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 11:19:38,982 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 11:19:38,982 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 11:19:38,991 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:19:38" (1/1) ... [2022-12-14 11:19:38,991 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:19:38" (1/1) ... [2022-12-14 11:19:39,003 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:19:38" (1/1) ... [2022-12-14 11:19:39,003 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:19:38" (1/1) ... [2022-12-14 11:19:39,053 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:19:38" (1/1) ... [2022-12-14 11:19:39,065 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:19:38" (1/1) ... [2022-12-14 11:19:39,070 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:19:38" (1/1) ... [2022-12-14 11:19:39,076 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:19:38" (1/1) ... [2022-12-14 11:19:39,087 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 11:19:39,088 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 11:19:39,088 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 11:19:39,088 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 11:19:39,089 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:19:38" (1/1) ... [2022-12-14 11:19:39,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:19:39,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a940a5-f83d-469e-8d80-fd08d46766e2/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:19:39,117 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a940a5-f83d-469e-8d80-fd08d46766e2/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 11:19:39,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a940a5-f83d-469e-8d80-fd08d46766e2/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 11:19:39,147 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 11:19:39,147 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 11:19:39,147 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 11:19:39,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 11:19:39,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-14 11:19:39,147 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-14 11:19:39,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 11:19:39,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 11:19:39,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 11:19:39,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 11:19:39,148 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-12-14 11:19:39,148 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 11:19:39,148 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 11:19:39,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 11:19:39,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 11:19:39,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 11:19:39,346 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 11:19:39,348 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 11:19:40,785 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 11:19:41,204 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 11:19:41,204 INFO L300 CfgBuilder]: Removed 92 assume(true) statements. [2022-12-14 11:19:41,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:19:41 BoogieIcfgContainer [2022-12-14 11:19:41,207 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 11:19:41,210 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 11:19:41,210 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 11:19:41,212 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 11:19:41,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 11:19:38" (1/3) ... [2022-12-14 11:19:41,213 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79d7891c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:19:41, skipping insertion in model container [2022-12-14 11:19:41,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:19:38" (2/3) ... [2022-12-14 11:19:41,213 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79d7891c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:19:41, skipping insertion in model container [2022-12-14 11:19:41,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:19:41" (3/3) ... [2022-12-14 11:19:41,214 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test5-2.i [2022-12-14 11:19:41,228 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 11:19:41,228 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 11:19:41,265 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 11:19:41,273 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;@4bc4968f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 11:19:41,273 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 11:19:41,279 INFO L276 IsEmpty]: Start isEmpty. Operand has 165 states, 149 states have (on average 1.8120805369127517) internal successors, (270), 156 states have internal predecessors, (270), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 11:19:41,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 11:19:41,288 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:19:41,288 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 11:19:41,289 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:19:41,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:19:41,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1765117460, now seen corresponding path program 1 times [2022-12-14 11:19:41,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:19:41,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57100568] [2022-12-14 11:19:41,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:19:41,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:19:41,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:19:41,430 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:19:41,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57100568] [2022-12-14 11:19:41,431 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-12-14 11:19:41,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1655759854] [2022-12-14 11:19:41,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:19:41,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:19:41,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a940a5-f83d-469e-8d80-fd08d46766e2/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:19:41,433 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a940a5-f83d-469e-8d80-fd08d46766e2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:19:41,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a940a5-f83d-469e-8d80-fd08d46766e2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 11:19:41,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:19:41,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-14 11:19:41,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:19:41,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:19:41,617 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 11:19:41,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1655759854] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:19:41,618 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:19:41,618 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 11:19:41,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863535914] [2022-12-14 11:19:41,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:19:41,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 11:19:41,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:19:41,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 11:19:41,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 11:19:41,646 INFO L87 Difference]: Start difference. First operand has 165 states, 149 states have (on average 1.8120805369127517) internal successors, (270), 156 states have internal predecessors, (270), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:19:42,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:19:42,311 INFO L93 Difference]: Finished difference Result 329 states and 588 transitions. [2022-12-14 11:19:42,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 11:19:42,316 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-12-14 11:19:42,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:19:42,322 INFO L225 Difference]: With dead ends: 329 [2022-12-14 11:19:42,322 INFO L226 Difference]: Without dead ends: 150 [2022-12-14 11:19:42,325 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 11:19:42,327 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-14 11:19:42,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 176 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-14 11:19:42,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-12-14 11:19:42,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2022-12-14 11:19:42,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 135 states have (on average 1.1925925925925926) internal successors, (161), 141 states have internal predecessors, (161), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 11:19:42,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 183 transitions. [2022-12-14 11:19:42,373 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 183 transitions. Word has length 6 [2022-12-14 11:19:42,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:19:42,373 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 183 transitions. [2022-12-14 11:19:42,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:19:42,374 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 183 transitions. [2022-12-14 11:19:42,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 11:19:42,375 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:19:42,375 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:19:42,381 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a940a5-f83d-469e-8d80-fd08d46766e2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 11:19:42,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a940a5-f83d-469e-8d80-fd08d46766e2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-12-14 11:19:42,576 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:19:42,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:19:42,577 INFO L85 PathProgramCache]: Analyzing trace with hash -1566679301, now seen corresponding path program 1 times [2022-12-14 11:19:42,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:19:42,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040569607] [2022-12-14 11:19:42,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:19:42,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:19:42,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:19:42,616 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:19:42,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040569607] [2022-12-14 11:19:42,616 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-12-14 11:19:42,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [580106112] [2022-12-14 11:19:42,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:19:42,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:19:42,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a940a5-f83d-469e-8d80-fd08d46766e2/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:19:42,618 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a940a5-f83d-469e-8d80-fd08d46766e2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:19:42,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a940a5-f83d-469e-8d80-fd08d46766e2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 11:19:42,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:19:42,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 11:19:42,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:19:42,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:19:42,801 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 11:19:42,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [580106112] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:19:42,802 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:19:42,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 11:19:42,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621374043] [2022-12-14 11:19:42,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:19:42,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:19:42,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:19:42,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:19:42,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:19:42,804 INFO L87 Difference]: Start difference. First operand 150 states and 183 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 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) [2022-12-14 11:19:43,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:19:43,674 INFO L93 Difference]: Finished difference Result 342 states and 425 transitions. [2022-12-14 11:19:43,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:19:43,676 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 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 17 [2022-12-14 11:19:43,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:19:43,678 INFO L225 Difference]: With dead ends: 342 [2022-12-14 11:19:43,678 INFO L226 Difference]: Without dead ends: 290 [2022-12-14 11:19:43,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:19:43,679 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 149 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 11:19:43,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 335 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 11:19:43,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2022-12-14 11:19:43,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 151. [2022-12-14 11:19:43,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 136 states have (on average 1.1911764705882353) internal successors, (162), 142 states have internal predecessors, (162), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 11:19:43,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 184 transitions. [2022-12-14 11:19:43,690 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 184 transitions. Word has length 17 [2022-12-14 11:19:43,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:19:43,690 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 184 transitions. [2022-12-14 11:19:43,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 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) [2022-12-14 11:19:43,690 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 184 transitions. [2022-12-14 11:19:43,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-12-14 11:19:43,691 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:19:43,691 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, 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] [2022-12-14 11:19:43,697 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a940a5-f83d-469e-8d80-fd08d46766e2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-14 11:19:43,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a940a5-f83d-469e-8d80-fd08d46766e2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:19:43,893 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:19:43,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:19:43,894 INFO L85 PathProgramCache]: Analyzing trace with hash -867190139, now seen corresponding path program 1 times [2022-12-14 11:19:43,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:19:43,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139076146] [2022-12-14 11:19:43,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:19:43,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:19:44,093 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 11:19:44,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [642942622] [2022-12-14 11:19:44,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:19:44,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:19:44,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a940a5-f83d-469e-8d80-fd08d46766e2/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:19:44,095 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a940a5-f83d-469e-8d80-fd08d46766e2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:19:44,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a940a5-f83d-469e-8d80-fd08d46766e2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 11:19:44,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:19:45,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 3112 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 11:19:45,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:19:45,076 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:19:45,076 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:19:45,131 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:19:45,131 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:19:45,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139076146] [2022-12-14 11:19:45,131 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 11:19:45,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [642942622] [2022-12-14 11:19:45,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [642942622] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:19:45,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1499871433] [2022-12-14 11:19:45,147 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2022-12-14 11:19:45,147 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:19:45,149 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:19:45,153 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:19:45,154 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 11:19:45,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:45,254 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 11:19:45,254 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 1 case distinctions, treesize of input 17 treesize of output 26 [2022-12-14 11:19:45,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:45,279 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 11:19:45,279 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-12-14 11:19:45,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:45,313 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 [2022-12-14 11:19:45,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:45,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:45,344 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 11:19:45,344 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 [2022-12-14 11:19:45,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:45,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:45,360 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 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 [2022-12-14 11:19:45,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:45,373 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:19:45,374 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 39 [2022-12-14 11:19:45,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:45,408 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 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 [2022-12-14 11:19:45,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:45,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:45,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:45,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:45,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:45,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:45,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:45,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:45,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:45,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:45,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:45,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:45,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:45,789 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-12-14 11:19:45,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:45,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:45,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:45,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:45,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:45,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:45,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:45,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:45,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:45,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:45,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:45,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:45,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:45,820 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-12-14 11:19:45,853 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 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 [2022-12-14 11:19:45,870 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 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 [2022-12-14 11:19:46,204 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 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 [2022-12-14 11:19:46,218 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 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 [2022-12-14 11:19:46,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:46,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:46,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:46,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:46,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:46,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:46,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:46,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:46,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:46,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:46,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:46,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:46,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:46,256 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-12-14 11:19:46,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:46,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:46,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:46,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:46,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:46,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:46,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:46,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:46,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:46,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:46,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:46,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:46,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:46,286 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-12-14 11:19:46,322 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 11:20:02,125 WARN L233 SmtUtils]: Spent 6.06s on a formula simplification. DAG size of input: 251 DAG size of output: 236 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:20:02,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1499871433] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:20:02,128 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-14 11:20:02,128 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 3] total 11 [2022-12-14 11:20:02,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743099559] [2022-12-14 11:20:02,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:20:02,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 11:20:02,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:20:02,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 11:20:02,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=69, Unknown=2, NotChecked=0, Total=132 [2022-12-14 11:20:02,130 INFO L87 Difference]: Start difference. First operand 151 states and 184 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 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) [2022-12-14 11:20:04,207 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 11:20:06,313 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 11:20:08,381 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 11:20:10,391 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 11:20:13,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:20:13,053 INFO L93 Difference]: Finished difference Result 313 states and 382 transitions. [2022-12-14 11:20:13,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 11:20:13,054 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 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 61 [2022-12-14 11:20:13,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:20:13,054 INFO L225 Difference]: With dead ends: 313 [2022-12-14 11:20:13,054 INFO L226 Difference]: Without dead ends: 164 [2022-12-14 11:20:13,055 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 15.8s TimeCoverageRelationStatistics Valid=61, Invalid=69, Unknown=2, NotChecked=0, Total=132 [2022-12-14 11:20:13,056 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 1 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 3 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2022-12-14 11:20:13,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 402 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 184 Invalid, 4 Unknown, 0 Unchecked, 10.9s Time] [2022-12-14 11:20:13,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2022-12-14 11:20:13,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 161. [2022-12-14 11:20:13,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 146 states have (on average 1.178082191780822) internal successors, (172), 152 states have internal predecessors, (172), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 11:20:13,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 194 transitions. [2022-12-14 11:20:13,066 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 194 transitions. Word has length 61 [2022-12-14 11:20:13,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:20:13,067 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 194 transitions. [2022-12-14 11:20:13,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 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) [2022-12-14 11:20:13,067 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 194 transitions. [2022-12-14 11:20:13,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-12-14 11:20:13,068 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:20:13,068 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:20:13,077 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a940a5-f83d-469e-8d80-fd08d46766e2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 11:20:13,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a940a5-f83d-469e-8d80-fd08d46766e2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-12-14 11:20:13,269 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:20:13,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:20:13,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1835922908, now seen corresponding path program 1 times [2022-12-14 11:20:13,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:20:13,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811543958] [2022-12-14 11:20:13,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:20:13,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:20:13,441 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 11:20:13,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1079598998] [2022-12-14 11:20:13,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:20:13,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:20:13,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a940a5-f83d-469e-8d80-fd08d46766e2/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:20:13,443 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a940a5-f83d-469e-8d80-fd08d46766e2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:20:13,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a940a5-f83d-469e-8d80-fd08d46766e2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 11:20:14,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:20:14,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 2249 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 11:20:14,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:20:14,233 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 11:20:14,234 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:20:14,302 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 11:20:14,302 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:20:14,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811543958] [2022-12-14 11:20:14,302 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 11:20:14,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1079598998] [2022-12-14 11:20:14,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1079598998] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:20:14,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [134992884] [2022-12-14 11:20:14,306 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-12-14 11:20:14,307 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:20:14,307 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:20:14,307 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:20:14,307 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 11:20:14,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:14,394 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 11:20:14,395 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-12-14 11:20:14,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:14,404 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 11:20:14,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:14,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:14,446 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-14 11:20:14,446 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2022-12-14 11:20:14,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:14,458 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 [2022-12-14 11:20:14,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:14,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:14,487 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 11:20:14,488 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 [2022-12-14 11:20:14,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:14,503 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 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 [2022-12-14 11:20:14,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:14,511 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:20:14,512 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 39 [2022-12-14 11:20:14,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:14,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:14,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:14,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:14,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:14,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:14,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:14,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:14,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:14,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:14,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:14,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:14,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:14,792 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-12-14 11:20:14,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:14,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:14,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:14,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:14,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:14,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:14,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:14,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:14,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:14,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:14,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:14,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:14,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:14,829 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9896988 treesize of output 5376290 [2022-12-14 11:20:14,860 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 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 [2022-12-14 11:20:14,877 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 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 [2022-12-14 11:20:14,907 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 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 [2022-12-14 11:20:14,916 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 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 [2022-12-14 11:20:14,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:14,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:14,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:14,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:14,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:14,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:14,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:14,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:14,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:14,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:14,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:14,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:14,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:14,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:14,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:14,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:14,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:14,959 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-12-14 11:20:14,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:14,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:14,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:14,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:14,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:14,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:14,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:14,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:14,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:14,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:14,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:14,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:14,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:14,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:14,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:14,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:14,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:14,997 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-12-14 11:20:15,051 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-12-14 11:20:15,074 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-12-14 11:20:15,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,127 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-12-14 11:20:15,127 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 74 [2022-12-14 11:20:15,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,177 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-12-14 11:20:15,177 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 49 treesize of output 85 [2022-12-14 11:20:15,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,208 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-12-14 11:20:15,714 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 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 [2022-12-14 11:20:15,727 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 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 [2022-12-14 11:20:15,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,763 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-12-14 11:20:15,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,795 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-12-14 11:20:15,853 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 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 [2022-12-14 11:20:15,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,899 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-12-14 11:20:15,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:15,949 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-12-14 11:20:15,970 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 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 [2022-12-14 11:20:16,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:16,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:16,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:16,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:16,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:16,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:16,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:16,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:16,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:16,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:16,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:16,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:16,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:16,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:16,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:16,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:16,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:16,036 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-12-14 11:20:16,065 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-12-14 11:20:16,088 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-12-14 11:20:16,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:16,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:16,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:16,149 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-12-14 11:20:16,149 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 74 [2022-12-14 11:20:16,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:16,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:16,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:20:16,215 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-12-14 11:20:16,216 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 49 treesize of output 85 [2022-12-14 11:20:16,512 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 253 for LOIs [2022-12-14 11:20:16,599 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 11:20:22,698 WARN L233 SmtUtils]: Spent 5.01s on a formula simplification. DAG size of input: 235 DAG size of output: 220 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:20:30,546 WARN L233 SmtUtils]: Spent 5.76s on a formula simplification. DAG size of input: 251 DAG size of output: 236 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:20:40,585 WARN L233 SmtUtils]: Spent 5.94s on a formula simplification. DAG size of input: 262 DAG size of output: 248 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:20:53,056 WARN L233 SmtUtils]: Spent 6.35s on a formula simplification. DAG size of input: 284 DAG size of output: 262 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:21:07,341 WARN L233 SmtUtils]: Spent 8.12s on a formula simplification. DAG size of input: 284 DAG size of output: 262 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:21:08,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [134992884] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:21:08,000 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-14 11:21:08,000 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [4, 4] total 17 [2022-12-14 11:21:08,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775647333] [2022-12-14 11:21:08,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:21:08,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 11:21:08,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:21:08,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 11:21:08,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=172, Unknown=9, NotChecked=0, Total=272 [2022-12-14 11:21:08,001 INFO L87 Difference]: Start difference. First operand 161 states and 194 transitions. Second operand has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 11:21:10,538 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 11:21:12,629 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 11:21:14,708 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 11:21:16,762 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 11:21:18,823 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 11:21:20,832 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 11:21:22,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 11:21:24,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 11:21:26,895 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 11:21:38,003 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 11:21:39,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:21:39,116 INFO L93 Difference]: Finished difference Result 315 states and 384 transitions. [2022-12-14 11:21:39,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-14 11:21:39,117 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 74 [2022-12-14 11:21:39,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:21:39,118 INFO L225 Difference]: With dead ends: 315 [2022-12-14 11:21:39,118 INFO L226 Difference]: Without dead ends: 166 [2022-12-14 11:21:39,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 203 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 51.4s TimeCoverageRelationStatistics Valid=91, Invalid=172, Unknown=9, NotChecked=0, Total=272 [2022-12-14 11:21:39,119 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 0 mSDsluCounter, 655 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 0 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 814 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.0s IncrementalHoareTripleChecker+Time [2022-12-14 11:21:39,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 814 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 511 Invalid, 9 Unknown, 0 Unchecked, 31.0s Time] [2022-12-14 11:21:39,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2022-12-14 11:21:39,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2022-12-14 11:21:39,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 150 states have (on average 1.1733333333333333) internal successors, (176), 156 states have internal predecessors, (176), 12 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (12), 7 states have call predecessors, (12), 12 states have call successors, (12) [2022-12-14 11:21:39,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 200 transitions. [2022-12-14 11:21:39,135 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 200 transitions. Word has length 74 [2022-12-14 11:21:39,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:21:39,135 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 200 transitions. [2022-12-14 11:21:39,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 11:21:39,135 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 200 transitions. [2022-12-14 11:21:39,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-12-14 11:21:39,136 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:21:39,137 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:21:39,145 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a940a5-f83d-469e-8d80-fd08d46766e2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 11:21:39,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a940a5-f83d-469e-8d80-fd08d46766e2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:21:39,338 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:21:39,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:21:39,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1163140644, now seen corresponding path program 1 times [2022-12-14 11:21:39,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:21:39,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640445878] [2022-12-14 11:21:39,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:21:39,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:21:39,487 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 11:21:39,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1327089178] [2022-12-14 11:21:39,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:21:39,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:21:39,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a940a5-f83d-469e-8d80-fd08d46766e2/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:21:39,488 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a940a5-f83d-469e-8d80-fd08d46766e2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:21:39,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9a940a5-f83d-469e-8d80-fd08d46766e2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 11:21:40,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:21:40,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 2264 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 11:21:40,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:21:40,295 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 11:21:40,295 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:21:40,371 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 11:21:40,371 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:21:40,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640445878] [2022-12-14 11:21:40,371 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 11:21:40,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1327089178] [2022-12-14 11:21:40,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1327089178] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:21:40,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1249774705] [2022-12-14 11:21:40,375 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-12-14 11:21:40,375 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:21:40,376 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:21:40,376 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:21:40,376 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 11:21:40,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:40,445 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 11:21:40,445 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-12-14 11:21:40,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:40,454 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 11:21:40,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:40,471 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:21:40,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:40,484 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 11:21:40,484 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 43 [2022-12-14 11:21:40,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:40,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:40,519 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-14 11:21:40,519 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2022-12-14 11:21:40,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:40,537 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 [2022-12-14 11:21:40,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:40,549 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 [2022-12-14 11:21:40,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:40,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:40,586 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 11:21:40,586 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 [2022-12-14 11:21:40,810 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 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 [2022-12-14 11:21:40,822 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 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 [2022-12-14 11:21:40,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:40,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:40,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:40,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:40,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:40,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:40,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:40,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:40,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:40,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:40,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:40,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:40,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:40,858 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-12-14 11:21:40,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:40,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:40,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:40,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:40,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:40,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:40,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:40,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:40,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:40,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:40,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:40,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:40,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:40,882 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-12-14 11:21:40,923 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 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 [2022-12-14 11:21:40,931 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 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 [2022-12-14 11:21:40,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:40,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:40,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:40,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:40,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:40,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:40,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:40,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:40,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:40,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:40,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:40,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:40,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:40,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:40,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:40,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:40,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:40,970 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-12-14 11:21:40,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:40,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:40,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:40,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:40,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:41,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:41,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:41,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:41,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:41,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:41,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:41,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:41,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:41,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:41,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:41,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:41,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:41,008 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-12-14 11:21:41,072 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-12-14 11:21:41,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:41,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:41,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:41,120 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-12-14 11:21:41,120 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 74 [2022-12-14 11:21:41,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:41,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:41,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:41,181 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-12-14 11:21:41,182 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 49 treesize of output 85 [2022-12-14 11:21:41,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:41,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:41,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:41,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:41,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:41,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:41,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:41,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:41,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:41,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:41,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:41,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:41,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:41,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:41,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:41,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:41,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:41,211 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-12-14 11:21:41,237 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-12-14 11:21:41,358 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 [2022-12-14 11:21:41,360 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 13 treesize of output 9 [2022-12-14 11:21:41,364 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 [2022-12-14 11:21:41,406 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 11:21:41,406 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 54 [2022-12-14 11:21:41,435 INFO L321 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2022-12-14 11:21:41,435 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 52 [2022-12-14 11:21:41,461 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 11:21:41,462 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 46 [2022-12-14 11:21:41,492 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 [2022-12-14 11:21:41,497 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 14 treesize of output 10 [2022-12-14 11:21:41,502 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 14 treesize of output 10 [2022-12-14 11:21:41,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:41,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:41,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:41,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:41,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:41,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:41,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:41,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:41,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:41,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:41,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:41,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:41,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:41,572 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075032 treesize of output 5376218 [2022-12-14 11:21:41,599 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-12-14 11:21:41,616 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-12-14 11:21:41,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:41,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:41,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:41,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:41,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:41,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:41,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:41,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:41,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:41,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:41,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:41,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:41,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:21:41,790 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075032 treesize of output 5376218 [2022-12-14 11:21:41,806 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-12-14 11:21:41,822 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-12-14 11:21:43,276 INFO L217 Elim1Store]: Index analysis took 1197 ms [2022-12-14 11:21:47,708 INFO L321 Elim1Store]: treesize reduction 190, result has 18.1 percent of original size [2022-12-14 11:21:47,708 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 22 case distinctions, treesize of input 10752723 treesize of output 10752742 [2022-12-14 11:21:48,902 INFO L217 Elim1Store]: Index analysis took 922 ms [2022-12-14 11:21:49,653 INFO L321 Elim1Store]: treesize reduction 87, result has 5.4 percent of original size [2022-12-14 11:21:49,653 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 10752718 treesize of output 10752722 [2022-12-14 11:25:08,661 WARN L233 SmtUtils]: Spent 3.31m on a formula simplification. DAG size of input: 198 DAG size of output: 106 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-14 11:25:08,662 INFO L321 Elim1Store]: treesize reduction 1611, result has 24.6 percent of original size [2022-12-14 11:25:08,662 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 8576 treesize of output 6519 [2022-12-14 11:25:09,110 INFO L217 Elim1Store]: Index analysis took 157 ms [2022-12-14 11:26:22,882 WARN L233 SmtUtils]: Spent 1.23m on a formula simplification. DAG size of input: 90 DAG size of output: 45 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-14 11:26:22,883 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-12-14 11:26:22,883 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 8524 treesize of output 7357 [2022-12-14 11:26:26,122 INFO L217 Elim1Store]: Index analysis took 2191 ms