./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test4-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a 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_d464b5d3-7dce-408f-8975-1b8d1a4ea418/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d464b5d3-7dce-408f-8975-1b8d1a4ea418/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d464b5d3-7dce-408f-8975-1b8d1a4ea418/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d464b5d3-7dce-408f-8975-1b8d1a4ea418/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test4-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d464b5d3-7dce-408f-8975-1b8d1a4ea418/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d464b5d3-7dce-408f-8975-1b8d1a4ea418/bin/utaipan-ByfvJB40ur --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 6c366d24ef9ea71cc6362f44963cc0aaadef105bf25ae7c56112d839540c58b5 --- 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-38b53e6 [2022-11-25 23:48:22,854 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:48:22,856 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:48:22,891 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:48:22,893 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:48:22,894 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:48:22,896 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:48:22,898 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:48:22,899 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:48:22,900 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:48:22,901 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:48:22,902 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:48:22,902 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:48:22,903 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:48:22,905 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:48:22,914 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:48:22,916 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:48:22,923 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:48:22,925 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:48:22,927 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:48:22,928 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:48:22,929 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:48:22,930 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:48:22,931 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:48:22,934 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:48:22,934 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:48:22,935 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:48:22,936 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:48:22,936 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:48:22,937 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:48:22,937 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:48:22,938 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:48:22,939 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:48:22,940 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:48:22,941 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:48:22,941 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:48:22,942 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:48:22,942 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:48:22,942 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:48:22,943 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:48:22,944 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:48:22,946 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d464b5d3-7dce-408f-8975-1b8d1a4ea418/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-25 23:48:22,983 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:48:22,983 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:48:22,984 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:48:22,984 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:48:22,984 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:48:22,985 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:48:22,985 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:48:22,985 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:48:22,993 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:48:22,993 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:48:22,994 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:48:22,994 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:48:22,994 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:48:22,995 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:48:22,995 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:48:22,995 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:48:22,995 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:48:22,995 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:48:22,996 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:48:22,996 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 23:48:22,996 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:48:22,997 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 23:48:22,997 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:48:22,997 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:48:22,997 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:48:22,998 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:48:22,998 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 23:48:22,998 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:48:22,999 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:48:22,999 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:48:22,999 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:48:22,999 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:48:23,000 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:48:23,001 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:48:23,001 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:48:23,001 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:48:23,001 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:48:23,001 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:48:23,002 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:48:23,002 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:48:23,002 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:48:23,002 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_d464b5d3-7dce-408f-8975-1b8d1a4ea418/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d464b5d3-7dce-408f-8975-1b8d1a4ea418/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c366d24ef9ea71cc6362f44963cc0aaadef105bf25ae7c56112d839540c58b5 [2022-11-25 23:48:23,314 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:48:23,343 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:48:23,346 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:48:23,347 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:48:23,348 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:48:23,349 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d464b5d3-7dce-408f-8975-1b8d1a4ea418/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test4-3.i [2022-11-25 23:48:26,460 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:48:26,783 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:48:26,783 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d464b5d3-7dce-408f-8975-1b8d1a4ea418/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test4-3.i [2022-11-25 23:48:26,805 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d464b5d3-7dce-408f-8975-1b8d1a4ea418/bin/utaipan-ByfvJB40ur/data/44789f718/e2929bbb9ac94d4186cf27d7a6f6b16f/FLAG840cf87a2 [2022-11-25 23:48:26,827 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d464b5d3-7dce-408f-8975-1b8d1a4ea418/bin/utaipan-ByfvJB40ur/data/44789f718/e2929bbb9ac94d4186cf27d7a6f6b16f [2022-11-25 23:48:26,832 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:48:26,834 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:48:26,838 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:48:26,838 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:48:26,842 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:48:26,843 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:48:26" (1/1) ... [2022-11-25 23:48:26,845 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b8a7f58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:48:26, skipping insertion in model container [2022-11-25 23:48:26,845 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:48:26" (1/1) ... [2022-11-25 23:48:26,853 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:48:26,985 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:48:27,433 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_d464b5d3-7dce-408f-8975-1b8d1a4ea418/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test4-3.i[33021,33034] [2022-11-25 23:48:27,608 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:48:27,619 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:48:27,652 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_d464b5d3-7dce-408f-8975-1b8d1a4ea418/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test4-3.i[33021,33034] [2022-11-25 23:48:27,737 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:48:27,793 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:48:27,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:48:27 WrapperNode [2022-11-25 23:48:27,794 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:48:27,795 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:48:27,795 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:48:27,795 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:48:27,802 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:48:27" (1/1) ... [2022-11-25 23:48:27,837 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:48:27" (1/1) ... [2022-11-25 23:48:27,918 INFO L138 Inliner]: procedures = 177, calls = 448, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1437 [2022-11-25 23:48:27,919 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:48:27,920 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:48:27,920 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:48:27,920 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:48:27,930 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:48:27" (1/1) ... [2022-11-25 23:48:27,930 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:48:27" (1/1) ... [2022-11-25 23:48:27,944 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:48:27" (1/1) ... [2022-11-25 23:48:27,944 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:48:27" (1/1) ... [2022-11-25 23:48:28,023 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:48:27" (1/1) ... [2022-11-25 23:48:28,047 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:48:27" (1/1) ... [2022-11-25 23:48:28,052 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:48:27" (1/1) ... [2022-11-25 23:48:28,074 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:48:27" (1/1) ... [2022-11-25 23:48:28,102 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:48:28,103 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:48:28,103 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:48:28,104 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:48:28,104 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:48:27" (1/1) ... [2022-11-25 23:48:28,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:48:28,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d464b5d3-7dce-408f-8975-1b8d1a4ea418/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:48:28,142 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d464b5d3-7dce-408f-8975-1b8d1a4ea418/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:48:28,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d464b5d3-7dce-408f-8975-1b8d1a4ea418/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:48:28,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 23:48:28,190 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-25 23:48:28,190 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-25 23:48:28,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 23:48:28,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-25 23:48:28,191 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-25 23:48:28,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 23:48:28,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:48:28,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 23:48:28,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 23:48:28,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 23:48:28,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 23:48:28,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 23:48:28,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:48:28,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:48:28,512 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:48:28,514 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:48:30,393 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:48:30,968 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:48:30,969 INFO L300 CfgBuilder]: Removed 77 assume(true) statements. [2022-11-25 23:48:30,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:48:30 BoogieIcfgContainer [2022-11-25 23:48:30,972 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:48:30,974 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:48:30,974 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:48:30,978 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:48:30,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:48:26" (1/3) ... [2022-11-25 23:48:30,979 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28dc32db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:48:30, skipping insertion in model container [2022-11-25 23:48:30,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:48:27" (2/3) ... [2022-11-25 23:48:30,979 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28dc32db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:48:30, skipping insertion in model container [2022-11-25 23:48:30,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:48:30" (3/3) ... [2022-11-25 23:48:30,981 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test4-3.i [2022-11-25 23:48:31,020 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:48:31,020 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 23:48:31,074 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:48:31,081 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;@37ad670, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:48:31,082 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 23:48:31,086 INFO L276 IsEmpty]: Start isEmpty. Operand has 153 states, 133 states have (on average 1.7969924812030076) internal successors, (239), 144 states have internal predecessors, (239), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-25 23:48:31,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-25 23:48:31,095 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:48:31,096 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:48:31,096 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:48:31,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:48:31,102 INFO L85 PathProgramCache]: Analyzing trace with hash -810098709, now seen corresponding path program 1 times [2022-11-25 23:48:31,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:48:31,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635753132] [2022-11-25 23:48:31,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:48:31,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:48:31,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:48:31,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:48:31,305 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:48:31,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635753132] [2022-11-25 23:48:31,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635753132] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:48:31,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:48:31,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:48:31,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339101300] [2022-11-25 23:48:31,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:48:31,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:48:31,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:48:31,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:48:31,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:48:31,346 INFO L87 Difference]: Start difference. First operand has 153 states, 133 states have (on average 1.7969924812030076) internal successors, (239), 144 states have internal predecessors, (239), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:48:33,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:48:33,841 INFO L93 Difference]: Finished difference Result 399 states and 722 transitions. [2022-11-25 23:48:33,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:48:33,851 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-25 23:48:33,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:48:33,863 INFO L225 Difference]: With dead ends: 399 [2022-11-25 23:48:33,863 INFO L226 Difference]: Without dead ends: 220 [2022-11-25 23:48:33,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:48:33,871 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 97 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-25 23:48:33,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 365 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-25 23:48:33,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-11-25 23:48:33,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 127. [2022-11-25 23:48:33,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 108 states have (on average 1.212962962962963) internal successors, (131), 118 states have internal predecessors, (131), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-25 23:48:33,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 163 transitions. [2022-11-25 23:48:33,926 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 163 transitions. Word has length 8 [2022-11-25 23:48:33,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:48:33,926 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 163 transitions. [2022-11-25 23:48:33,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:48:33,927 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 163 transitions. [2022-11-25 23:48:33,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-25 23:48:33,930 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:48:33,930 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] [2022-11-25 23:48:33,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 23:48:33,931 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:48:33,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:48:33,932 INFO L85 PathProgramCache]: Analyzing trace with hash 761830316, now seen corresponding path program 1 times [2022-11-25 23:48:33,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:48:33,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229157081] [2022-11-25 23:48:33,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:48:33,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:48:34,278 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 23:48:34,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [433926295] [2022-11-25 23:48:34,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:48:34,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:48:34,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d464b5d3-7dce-408f-8975-1b8d1a4ea418/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:48:34,285 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d464b5d3-7dce-408f-8975-1b8d1a4ea418/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:48:34,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d464b5d3-7dce-408f-8975-1b8d1a4ea418/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 23:48:35,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:48:35,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 3056 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 23:48:35,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:48:35,797 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:48:35,797 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:48:35,939 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:48:35,940 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:48:35,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229157081] [2022-11-25 23:48:35,940 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 23:48:35,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [433926295] [2022-11-25 23:48:35,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [433926295] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:48:35,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1355884927] [2022-11-25 23:48:35,963 INFO L159 IcfgInterpreter]: Started Sifa with 52 locations of interest [2022-11-25 23:48:35,964 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:48:35,967 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:48:35,973 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:48:35,973 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:48:36,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:36,165 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:36,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:36,196 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-25 23:48:36,197 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 [2022-11-25 23:48:36,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:36,227 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 [2022-11-25 23:48:36,268 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-25 23:48:36,269 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2022-11-25 23:48:36,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:36,349 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 [2022-11-25 23:48:36,396 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 23:48:36,397 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-25 23:48:36,857 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 [2022-11-25 23:48:36,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:36,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:36,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:36,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:36,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:36,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:36,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:36,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:36,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:36,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:36,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:36,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:36,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:36,920 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 [2022-11-25 23:48:36,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:36,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:36,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:36,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:36,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:36,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:36,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:36,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:36,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:36,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:36,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:36,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:36,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:36,975 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 [2022-11-25 23:48:37,018 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 [2022-11-25 23:48:37,088 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-25 23:48:37,089 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2022-11-25 23:48:37,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:37,107 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 [2022-11-25 23:48:37,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:37,120 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:37,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:37,136 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-25 23:48:37,136 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 [2022-11-25 23:48:37,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:37,158 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 [2022-11-25 23:48:37,210 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 23:48:37,211 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-25 23:48:37,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:37,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:37,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:37,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:37,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:37,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:37,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:37,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:37,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:37,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:37,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:37,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:37,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:37,657 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 [2022-11-25 23:48:37,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:37,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:37,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:37,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:37,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:37,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:37,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:37,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:37,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:37,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:37,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:37,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:37,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:37,700 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 [2022-11-25 23:48:37,736 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 [2022-11-25 23:48:37,754 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 [2022-11-25 23:48:37,779 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:48:45,695 WARN L233 SmtUtils]: Spent 5.05s on a formula simplification. DAG size of input: 223 DAG size of output: 212 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:48:53,214 WARN L233 SmtUtils]: Spent 5.39s on a formula simplification. DAG size of input: 239 DAG size of output: 228 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:48:53,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1355884927] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:48:53,220 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-25 23:48:53,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 3] total 11 [2022-11-25 23:48:53,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478494891] [2022-11-25 23:48:53,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:48:53,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:48:53,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:48:53,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:48:53,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=69, Unknown=2, NotChecked=0, Total=132 [2022-11-25 23:48:53,228 INFO L87 Difference]: Start difference. First operand 127 states and 163 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:48:58,424 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 23:49:00,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 23:49:02,519 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 23:49:07,005 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 23:49:08,283 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 23:49:10,342 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 23:49:11,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:49:11,229 INFO L93 Difference]: Finished difference Result 265 states and 340 transitions. [2022-11-25 23:49:11,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 23:49:11,230 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-11-25 23:49:11,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:49:11,231 INFO L225 Difference]: With dead ends: 265 [2022-11-25 23:49:11,231 INFO L226 Difference]: Without dead ends: 140 [2022-11-25 23:49:11,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 18.1s TimeCoverageRelationStatistics Valid=71, Invalid=83, Unknown=2, NotChecked=0, Total=156 [2022-11-25 23:49:11,233 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 1 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 4 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:49:11,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 461 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 211 Invalid, 4 Unknown, 0 Unchecked, 15.3s Time] [2022-11-25 23:49:11,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2022-11-25 23:49:11,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 137. [2022-11-25 23:49:11,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 118 states have (on average 1.194915254237288) internal successors, (141), 128 states have internal predecessors, (141), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-25 23:49:11,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 173 transitions. [2022-11-25 23:49:11,266 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 173 transitions. Word has length 52 [2022-11-25 23:49:11,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:49:11,266 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 173 transitions. [2022-11-25 23:49:11,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:49:11,267 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 173 transitions. [2022-11-25 23:49:11,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-25 23:49:11,268 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:49:11,269 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] [2022-11-25 23:49:11,290 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d464b5d3-7dce-408f-8975-1b8d1a4ea418/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 23:49:11,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d464b5d3-7dce-408f-8975-1b8d1a4ea418/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:49:11,487 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:49:11,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:49:11,488 INFO L85 PathProgramCache]: Analyzing trace with hash 583681991, now seen corresponding path program 1 times [2022-11-25 23:49:11,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:49:11,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89586454] [2022-11-25 23:49:11,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:49:11,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:49:11,701 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 23:49:11,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1719820460] [2022-11-25 23:49:11,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:49:11,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:49:11,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d464b5d3-7dce-408f-8975-1b8d1a4ea418/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:49:11,706 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d464b5d3-7dce-408f-8975-1b8d1a4ea418/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:49:11,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d464b5d3-7dce-408f-8975-1b8d1a4ea418/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 23:49:12,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:49:12,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 2193 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 23:49:12,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:49:12,944 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 23:49:12,944 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:49:13,064 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 23:49:13,064 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:49:13,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89586454] [2022-11-25 23:49:13,064 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 23:49:13,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1719820460] [2022-11-25 23:49:13,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1719820460] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:49:13,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1500826276] [2022-11-25 23:49:13,070 INFO L159 IcfgInterpreter]: Started Sifa with 62 locations of interest [2022-11-25 23:49:13,070 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:49:13,071 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:49:13,071 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:49:13,071 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:49:13,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:13,219 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:49:13,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:13,234 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-25 23:49:13,235 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 [2022-11-25 23:49:13,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:13,253 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 [2022-11-25 23:49:13,289 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-25 23:49:13,289 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2022-11-25 23:49:13,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:13,312 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 [2022-11-25 23:49:13,359 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 23:49:13,359 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-25 23:49:13,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:13,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:13,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:13,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:13,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:13,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:13,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:13,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:13,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:13,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:13,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:13,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:13,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:13,677 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 [2022-11-25 23:49:13,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:13,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:13,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:13,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:13,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:13,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:13,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:13,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:13,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:13,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:13,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:13,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:13,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:13,777 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 [2022-11-25 23:49:13,816 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 [2022-11-25 23:49:13,837 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 [2022-11-25 23:49:13,876 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 [2022-11-25 23:49:13,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:13,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:13,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:13,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:13,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:13,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:13,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:13,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:13,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:13,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:13,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:13,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:13,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:13,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:13,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:13,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:13,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:13,929 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 [2022-11-25 23:49:13,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:13,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:13,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:13,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:13,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:13,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:13,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:13,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:13,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:13,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:13,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:13,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:13,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:13,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:13,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:13,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:13,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:13,982 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 [2022-11-25 23:49:14,017 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 [2022-11-25 23:49:14,063 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 [2022-11-25 23:49:14,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:14,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:14,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:14,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:14,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:14,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:14,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:14,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:14,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:14,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:14,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:14,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:14,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:14,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:14,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:14,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:14,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:14,108 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 [2022-11-25 23:49:14,150 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 [2022-11-25 23:49:14,227 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-25 23:49:14,228 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 77 [2022-11-25 23:49:14,248 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 28 treesize of output 36 [2022-11-25 23:49:14,633 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 23:49:14,634 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-25 23:49:14,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:14,651 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 [2022-11-25 23:49:14,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:14,664 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 [2022-11-25 23:49:14,671 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 [2022-11-25 23:49:14,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:14,683 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:49:14,684 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 [2022-11-25 23:49:15,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,145 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 [2022-11-25 23:49:15,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,189 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 [2022-11-25 23:49:15,222 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 [2022-11-25 23:49:15,239 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 [2022-11-25 23:49:15,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,318 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 [2022-11-25 23:49:15,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,369 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 [2022-11-25 23:49:15,396 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 [2022-11-25 23:49:15,413 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 [2022-11-25 23:49:15,465 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 [2022-11-25 23:49:15,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:15,504 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 [2022-11-25 23:49:15,547 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 [2022-11-25 23:49:15,627 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-25 23:49:15,627 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 77 [2022-11-25 23:49:15,649 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 28 treesize of output 36 [2022-11-25 23:49:16,035 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 241 for LOIs [2022-11-25 23:49:16,137 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:49:22,507 WARN L233 SmtUtils]: Spent 5.38s on a formula simplification. DAG size of input: 223 DAG size of output: 212 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:49:29,889 WARN L233 SmtUtils]: Spent 5.27s on a formula simplification. DAG size of input: 239 DAG size of output: 228 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:49:39,697 WARN L233 SmtUtils]: Spent 5.68s on a formula simplification. DAG size of input: 250 DAG size of output: 240 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:49:52,186 WARN L233 SmtUtils]: Spent 6.32s on a formula simplification. DAG size of input: 272 DAG size of output: 254 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:50:04,368 WARN L233 SmtUtils]: Spent 5.99s on a formula simplification. DAG size of input: 272 DAG size of output: 254 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:50:05,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1500826276] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:50:05,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-25 23:50:05,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [4, 4] total 17 [2022-11-25 23:50:05,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727804527] [2022-11-25 23:50:05,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:50:05,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 23:50:05,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:50:05,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 23:50:05,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=172, Unknown=9, NotChecked=0, Total=272 [2022-11-25 23:50:05,086 INFO L87 Difference]: Start difference. First operand 137 states and 173 transitions. Second operand has 13 states, 12 states have (on average 4.833333333333333) internal successors, (58), 11 states have internal predecessors, (58), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:50:07,473 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 23:50:09,686 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 23:50:11,718 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 23:50:13,830 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 23:50:15,850 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 23:50:17,878 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 23:50:19,939 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 23:50:21,958 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 23:50:23,982 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 23:50:31,796 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 23:50:35,024 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 23:50:36,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 23:50:38,912 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 23:50:40,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 23:50:42,499 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] [2022-11-25 23:50:42,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:50:42,763 INFO L93 Difference]: Finished difference Result 267 states and 342 transitions. [2022-11-25 23:50:42,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-25 23:50:42,764 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.833333333333333) internal successors, (58), 11 states have internal predecessors, (58), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 65 [2022-11-25 23:50:42,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:50:42,766 INFO L225 Difference]: With dead ends: 267 [2022-11-25 23:50:42,766 INFO L226 Difference]: Without dead ends: 142 [2022-11-25 23:50:42,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 176 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 48.9s TimeCoverageRelationStatistics Valid=91, Invalid=172, Unknown=9, NotChecked=0, Total=272 [2022-11-25 23:50:42,769 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 0 mSDsluCounter, 608 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 0 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 749 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.6s IncrementalHoareTripleChecker+Time [2022-11-25 23:50:42,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 749 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 433 Invalid, 10 Unknown, 0 Unchecked, 37.6s Time] [2022-11-25 23:50:42,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2022-11-25 23:50:42,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2022-11-25 23:50:42,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 122 states have (on average 1.1885245901639345) internal successors, (145), 132 states have internal predecessors, (145), 17 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (17), 7 states have call predecessors, (17), 17 states have call successors, (17) [2022-11-25 23:50:42,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 179 transitions. [2022-11-25 23:50:42,802 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 179 transitions. Word has length 65 [2022-11-25 23:50:42,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:50:42,802 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 179 transitions. [2022-11-25 23:50:42,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.833333333333333) internal successors, (58), 11 states have internal predecessors, (58), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:50:42,803 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 179 transitions. [2022-11-25 23:50:42,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-25 23:50:42,805 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:50:42,805 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] [2022-11-25 23:50:42,821 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d464b5d3-7dce-408f-8975-1b8d1a4ea418/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 23:50:43,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d464b5d3-7dce-408f-8975-1b8d1a4ea418/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:50:43,016 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:50:43,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:50:43,017 INFO L85 PathProgramCache]: Analyzing trace with hash 501515405, now seen corresponding path program 1 times [2022-11-25 23:50:43,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:50:43,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571305755] [2022-11-25 23:50:43,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:50:43,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:50:43,194 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 23:50:43,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1568843838] [2022-11-25 23:50:43,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:50:43,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:50:43,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d464b5d3-7dce-408f-8975-1b8d1a4ea418/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:50:43,196 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d464b5d3-7dce-408f-8975-1b8d1a4ea418/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:50:43,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d464b5d3-7dce-408f-8975-1b8d1a4ea418/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 23:50:44,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:50:44,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 2208 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 23:50:44,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:50:44,491 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-25 23:50:44,491 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:50:44,592 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-25 23:50:44,592 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:50:44,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571305755] [2022-11-25 23:50:44,593 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 23:50:44,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1568843838] [2022-11-25 23:50:44,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1568843838] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:50:44,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1818412560] [2022-11-25 23:50:44,597 INFO L159 IcfgInterpreter]: Started Sifa with 62 locations of interest [2022-11-25 23:50:44,598 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:50:44,598 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:50:44,598 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:50:44,599 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:50:44,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:44,780 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 [2022-11-25 23:50:44,816 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-25 23:50:44,817 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2022-11-25 23:50:44,859 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 23:50:44,859 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-25 23:50:44,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:44,875 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 [2022-11-25 23:50:44,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:44,884 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:44,885 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 [2022-11-25 23:50:45,152 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 [2022-11-25 23:50:45,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,199 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 [2022-11-25 23:50:45,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,240 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 [2022-11-25 23:50:45,311 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 [2022-11-25 23:50:45,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,392 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 [2022-11-25 23:50:45,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,444 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 [2022-11-25 23:50:45,469 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 [2022-11-25 23:50:45,482 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 [2022-11-25 23:50:45,525 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 [2022-11-25 23:50:45,591 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-25 23:50:45,591 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 66 [2022-11-25 23:50:45,664 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-25 23:50:45,664 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 77 [2022-11-25 23:50:45,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:45,713 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 [2022-11-25 23:50:45,749 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 [2022-11-25 23:50:45,889 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-25 23:50:45,894 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-25 23:50:45,898 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 [2022-11-25 23:50:45,941 INFO L321 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2022-11-25 23:50:45,941 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 53 treesize of output 56 [2022-11-25 23:50:46,009 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-25 23:50:46,009 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 47 treesize of output 50 [2022-11-25 23:50:46,040 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-25 23:50:46,040 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 [2022-11-25 23:50:46,073 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 [2022-11-25 23:50:46,079 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 [2022-11-25 23:50:46,085 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-25 23:50:46,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:46,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:46,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:46,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:46,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:46,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:46,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:46,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:46,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:46,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:46,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:46,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:46,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:46,173 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 [2022-11-25 23:50:46,198 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 [2022-11-25 23:50:46,216 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 [2022-11-25 23:50:46,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:46,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:46,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:46,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:46,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:46,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:46,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:46,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:46,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:46,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:46,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:46,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:46,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:46,405 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 [2022-11-25 23:50:46,424 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 [2022-11-25 23:50:46,443 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 [2022-11-25 23:50:47,740 INFO L217 Elim1Store]: Index analysis took 955 ms [2022-11-25 23:50:50,305 INFO L321 Elim1Store]: treesize reduction 96, result has 17.9 percent of original size [2022-11-25 23:50:50,306 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 10752670 treesize of output 10752673 [2022-11-25 23:50:51,376 INFO L217 Elim1Store]: Index analysis took 906 ms [2022-11-25 23:50:53,504 INFO L321 Elim1Store]: treesize reduction 144, result has 12.7 percent of original size [2022-11-25 23:50:53,505 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 10752675 treesize of output 10752677 [2022-11-25 23:51:02,715 WARN L233 SmtUtils]: Spent 8.96s on a formula simplification. DAG size of input: 67 DAG size of output: 32 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-25 23:51:02,715 INFO L321 Elim1Store]: treesize reduction 340, result has 16.0 percent of original size [2022-11-25 23:51:02,716 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 1986 treesize of output 1476 [2022-11-25 23:51:29,317 WARN L233 SmtUtils]: Spent 26.41s 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) [2022-11-25 23:51:29,317 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-11-25 23:51:29,318 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 2005 treesize of output 1824 [2022-11-25 23:51:30,244 INFO L217 Elim1Store]: Index analysis took 699 ms [2022-11-25 23:51:55,478 WARN L233 SmtUtils]: Spent 24.55s on a formula simplification. DAG size of input: 252 DAG size of output: 150 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-25 23:51:55,479 INFO L321 Elim1Store]: treesize reduction 2438, result has 32.1 percent of original size [2022-11-25 23:51:55,480 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 1542 treesize of output 2093 [2022-11-25 23:51:56,292 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:56,680 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:56,680 INFO L217 Elim1Store]: Index analysis took 388 ms [2022-11-25 23:51:56,682 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 89 [2022-11-25 23:51:56,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:56,838 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 30 [2022-11-25 23:51:56,912 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:51:57,441 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:57,443 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 71 [2022-11-25 23:51:57,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:57,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:57,672 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 57 [2022-11-25 23:51:58,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:58,799 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-11-25 23:55:24,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:55:24,416 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13