./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/forester-heap/sll-circular-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f 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_378d9a45-791e-4bf0-97a3-a7dad4eaa08b/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_378d9a45-791e-4bf0-97a3-a7dad4eaa08b/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_378d9a45-791e-4bf0-97a3-a7dad4eaa08b/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_378d9a45-791e-4bf0-97a3-a7dad4eaa08b/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/forester-heap/sll-circular-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_378d9a45-791e-4bf0-97a3-a7dad4eaa08b/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_378d9a45-791e-4bf0-97a3-a7dad4eaa08b/bin/utaipan-Xvt2sAort0 --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 6c54160550402a2cf6139371c972b70bfa4a53acf207c90f67eed3e784812b38 --- 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-e04fb08 [2022-11-16 20:21:36,773 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 20:21:36,775 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 20:21:36,805 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 20:21:36,805 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 20:21:36,809 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 20:21:36,815 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 20:21:36,822 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 20:21:36,824 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 20:21:36,833 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 20:21:36,835 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 20:21:36,836 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 20:21:36,836 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 20:21:36,837 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 20:21:36,841 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 20:21:36,842 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 20:21:36,843 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 20:21:36,844 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 20:21:36,845 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 20:21:36,847 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 20:21:36,849 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 20:21:36,850 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 20:21:36,851 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 20:21:36,852 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 20:21:36,856 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 20:21:36,856 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 20:21:36,857 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 20:21:36,858 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 20:21:36,858 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 20:21:36,859 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 20:21:36,860 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 20:21:36,861 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 20:21:36,861 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 20:21:36,862 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 20:21:36,863 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 20:21:36,863 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 20:21:36,864 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 20:21:36,864 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 20:21:36,865 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 20:21:36,865 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 20:21:36,866 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 20:21:36,867 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_378d9a45-791e-4bf0-97a3-a7dad4eaa08b/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-16 20:21:36,892 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 20:21:36,893 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 20:21:36,893 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 20:21:36,893 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 20:21:36,894 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 20:21:36,894 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 20:21:36,894 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 20:21:36,894 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 20:21:36,895 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 20:21:36,895 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 20:21:36,895 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 20:21:36,895 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 20:21:36,895 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 20:21:36,896 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 20:21:36,896 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 20:21:36,896 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 20:21:36,896 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 20:21:36,896 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 20:21:36,897 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 20:21:36,897 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 20:21:36,898 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 20:21:36,898 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 20:21:36,898 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 20:21:36,898 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 20:21:36,899 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 20:21:36,899 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 20:21:36,899 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 20:21:36,899 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 20:21:36,899 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 20:21:36,900 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 20:21:36,900 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 20:21:36,900 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 20:21:36,900 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 20:21:36,900 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 20:21:36,901 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 20:21:36,901 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 20:21:36,901 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 20:21:36,901 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 20:21:36,901 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 20:21:36,902 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 20:21:36,902 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 20:21:36,902 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_378d9a45-791e-4bf0-97a3-a7dad4eaa08b/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_378d9a45-791e-4bf0-97a3-a7dad4eaa08b/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c54160550402a2cf6139371c972b70bfa4a53acf207c90f67eed3e784812b38 [2022-11-16 20:21:37,211 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 20:21:37,255 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 20:21:37,258 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 20:21:37,260 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 20:21:37,261 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 20:21:37,263 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_378d9a45-791e-4bf0-97a3-a7dad4eaa08b/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/forester-heap/sll-circular-1.i [2022-11-16 20:21:37,346 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_378d9a45-791e-4bf0-97a3-a7dad4eaa08b/bin/utaipan-Xvt2sAort0/data/1bb534d61/c30a4458fb664e318a20934009008a9e/FLAGf39e6ef93 [2022-11-16 20:21:38,111 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 20:21:38,111 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_378d9a45-791e-4bf0-97a3-a7dad4eaa08b/sv-benchmarks/c/forester-heap/sll-circular-1.i [2022-11-16 20:21:38,130 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_378d9a45-791e-4bf0-97a3-a7dad4eaa08b/bin/utaipan-Xvt2sAort0/data/1bb534d61/c30a4458fb664e318a20934009008a9e/FLAGf39e6ef93 [2022-11-16 20:21:38,345 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_378d9a45-791e-4bf0-97a3-a7dad4eaa08b/bin/utaipan-Xvt2sAort0/data/1bb534d61/c30a4458fb664e318a20934009008a9e [2022-11-16 20:21:38,348 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 20:21:38,350 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 20:21:38,352 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 20:21:38,352 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 20:21:38,357 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 20:21:38,358 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:21:38" (1/1) ... [2022-11-16 20:21:38,359 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58693571 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:21:38, skipping insertion in model container [2022-11-16 20:21:38,359 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:21:38" (1/1) ... [2022-11-16 20:21:38,368 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 20:21:38,412 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 20:21:38,835 WARN L229 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_378d9a45-791e-4bf0-97a3-a7dad4eaa08b/sv-benchmarks/c/forester-heap/sll-circular-1.i[22324,22337] [2022-11-16 20:21:38,841 WARN L229 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_378d9a45-791e-4bf0-97a3-a7dad4eaa08b/sv-benchmarks/c/forester-heap/sll-circular-1.i[22430,22443] [2022-11-16 20:21:38,843 WARN L229 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_378d9a45-791e-4bf0-97a3-a7dad4eaa08b/sv-benchmarks/c/forester-heap/sll-circular-1.i[22555,22568] [2022-11-16 20:21:38,847 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 20:21:38,857 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 20:21:38,912 WARN L229 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_378d9a45-791e-4bf0-97a3-a7dad4eaa08b/sv-benchmarks/c/forester-heap/sll-circular-1.i[22324,22337] [2022-11-16 20:21:38,916 WARN L229 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_378d9a45-791e-4bf0-97a3-a7dad4eaa08b/sv-benchmarks/c/forester-heap/sll-circular-1.i[22430,22443] [2022-11-16 20:21:38,924 WARN L229 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_378d9a45-791e-4bf0-97a3-a7dad4eaa08b/sv-benchmarks/c/forester-heap/sll-circular-1.i[22555,22568] [2022-11-16 20:21:38,927 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 20:21:38,965 INFO L208 MainTranslator]: Completed translation [2022-11-16 20:21:38,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:21:38 WrapperNode [2022-11-16 20:21:38,967 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 20:21:38,969 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 20:21:38,969 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 20:21:38,970 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 20:21:38,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:21:38" (1/1) ... [2022-11-16 20:21:39,026 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:21:38" (1/1) ... [2022-11-16 20:21:39,062 INFO L138 Inliner]: procedures = 119, calls = 28, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 113 [2022-11-16 20:21:39,066 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 20:21:39,067 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 20:21:39,067 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 20:21:39,068 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 20:21:39,079 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:21:38" (1/1) ... [2022-11-16 20:21:39,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:21:38" (1/1) ... [2022-11-16 20:21:39,083 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:21:38" (1/1) ... [2022-11-16 20:21:39,083 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:21:38" (1/1) ... [2022-11-16 20:21:39,091 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:21:38" (1/1) ... [2022-11-16 20:21:39,106 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:21:38" (1/1) ... [2022-11-16 20:21:39,108 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:21:38" (1/1) ... [2022-11-16 20:21:39,121 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:21:38" (1/1) ... [2022-11-16 20:21:39,124 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 20:21:39,125 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 20:21:39,125 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 20:21:39,125 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 20:21:39,132 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:21:38" (1/1) ... [2022-11-16 20:21:39,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 20:21:39,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_378d9a45-791e-4bf0-97a3-a7dad4eaa08b/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:21:39,176 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_378d9a45-791e-4bf0-97a3-a7dad4eaa08b/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 20:21:39,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_378d9a45-791e-4bf0-97a3-a7dad4eaa08b/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 20:21:39,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 20:21:39,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 20:21:39,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 20:21:39,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 20:21:39,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 20:21:39,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 20:21:39,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 20:21:39,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 20:21:39,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 20:21:39,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 20:21:39,434 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 20:21:39,436 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 20:21:39,843 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 20:21:39,878 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 20:21:39,878 INFO L300 CfgBuilder]: Removed 9 assume(true) statements. [2022-11-16 20:21:39,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 08:21:39 BoogieIcfgContainer [2022-11-16 20:21:39,882 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 20:21:39,884 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 20:21:39,885 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 20:21:39,889 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 20:21:39,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 08:21:38" (1/3) ... [2022-11-16 20:21:39,894 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@254e6753 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:21:39, skipping insertion in model container [2022-11-16 20:21:39,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:21:38" (2/3) ... [2022-11-16 20:21:39,895 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@254e6753 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:21:39, skipping insertion in model container [2022-11-16 20:21:39,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 08:21:39" (3/3) ... [2022-11-16 20:21:39,897 INFO L112 eAbstractionObserver]: Analyzing ICFG sll-circular-1.i [2022-11-16 20:21:39,920 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 20:21:39,922 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-16 20:21:40,041 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 20:21:40,055 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;@78e41fa3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 20:21:40,055 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-16 20:21:40,062 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 25 states have (on average 1.84) internal successors, (46), 28 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:21:40,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-16 20:21:40,070 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:21:40,070 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-16 20:21:40,071 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:21:40,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:21:40,080 INFO L85 PathProgramCache]: Analyzing trace with hash 148381218, now seen corresponding path program 1 times [2022-11-16 20:21:40,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:21:40,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156578375] [2022-11-16 20:21:40,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:21:40,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:21:40,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:21:40,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 20:21:40,372 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:21:40,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156578375] [2022-11-16 20:21:40,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156578375] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:21:40,375 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:21:40,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 20:21:40,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563687948] [2022-11-16 20:21:40,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:21:40,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 20:21:40,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:21:40,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 20:21:40,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 20:21:40,439 INFO L87 Difference]: Start difference. First operand has 29 states, 25 states have (on average 1.84) internal successors, (46), 28 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:21:40,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:21:40,495 INFO L93 Difference]: Finished difference Result 57 states and 91 transitions. [2022-11-16 20:21:40,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 20:21:40,498 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-16 20:21:40,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:21:40,507 INFO L225 Difference]: With dead ends: 57 [2022-11-16 20:21:40,508 INFO L226 Difference]: Without dead ends: 24 [2022-11-16 20:21:40,512 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 20:21:40,516 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 20:21:40,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 20:21:40,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-11-16 20:21:40,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2022-11-16 20:21:40,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 21 states have (on average 1.3333333333333333) internal successors, (28), 23 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:21:40,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2022-11-16 20:21:40,563 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 5 [2022-11-16 20:21:40,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:21:40,564 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2022-11-16 20:21:40,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:21:40,565 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2022-11-16 20:21:40,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-16 20:21:40,566 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:21:40,566 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-16 20:21:40,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 20:21:40,567 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:21:40,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:21:40,568 INFO L85 PathProgramCache]: Analyzing trace with hash 263882099, now seen corresponding path program 1 times [2022-11-16 20:21:40,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:21:40,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199028312] [2022-11-16 20:21:40,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:21:40,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:21:40,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:21:40,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 20:21:40,941 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:21:40,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199028312] [2022-11-16 20:21:40,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199028312] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:21:40,942 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:21:40,943 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 20:21:40,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510551116] [2022-11-16 20:21:40,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:21:40,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 20:21:40,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:21:40,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 20:21:40,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 20:21:40,946 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:21:41,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:21:41,072 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2022-11-16 20:21:41,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 20:21:41,074 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-16 20:21:41,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:21:41,076 INFO L225 Difference]: With dead ends: 39 [2022-11-16 20:21:41,076 INFO L226 Difference]: Without dead ends: 35 [2022-11-16 20:21:41,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 20:21:41,078 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 22 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 20:21:41,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 40 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 20:21:41,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-11-16 20:21:41,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 26. [2022-11-16 20:21:41,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 25 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:21:41,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2022-11-16 20:21:41,087 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 6 [2022-11-16 20:21:41,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:21:41,087 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2022-11-16 20:21:41,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:21:41,088 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2022-11-16 20:21:41,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-16 20:21:41,088 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:21:41,089 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:21:41,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 20:21:41,089 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:21:41,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:21:41,090 INFO L85 PathProgramCache]: Analyzing trace with hash -2093833755, now seen corresponding path program 1 times [2022-11-16 20:21:41,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:21:41,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450562624] [2022-11-16 20:21:41,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:21:41,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:21:41,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:21:41,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 20:21:41,211 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:21:41,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450562624] [2022-11-16 20:21:41,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450562624] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:21:41,212 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:21:41,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 20:21:41,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038339348] [2022-11-16 20:21:41,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:21:41,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 20:21:41,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:21:41,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 20:21:41,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:21:41,215 INFO L87 Difference]: Start difference. First operand 26 states and 31 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:21:41,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:21:41,263 INFO L93 Difference]: Finished difference Result 67 states and 79 transitions. [2022-11-16 20:21:41,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 20:21:41,264 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-16 20:21:41,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:21:41,266 INFO L225 Difference]: With dead ends: 67 [2022-11-16 20:21:41,266 INFO L226 Difference]: Without dead ends: 46 [2022-11-16 20:21:41,267 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 [2022-11-16 20:21:41,268 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 18 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 20:21:41,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 39 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 20:21:41,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-11-16 20:21:41,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 33. [2022-11-16 20:21:41,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 31 states have (on average 1.2903225806451613) internal successors, (40), 32 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:21:41,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 40 transitions. [2022-11-16 20:21:41,275 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 40 transitions. Word has length 9 [2022-11-16 20:21:41,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:21:41,275 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 40 transitions. [2022-11-16 20:21:41,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:21:41,276 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 40 transitions. [2022-11-16 20:21:41,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-16 20:21:41,276 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:21:41,277 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:21:41,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 20:21:41,277 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:21:41,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:21:41,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1360097193, now seen corresponding path program 1 times [2022-11-16 20:21:41,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:21:41,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379762120] [2022-11-16 20:21:41,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:21:41,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:21:41,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:21:42,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 20:21:42,490 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:21:42,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379762120] [2022-11-16 20:21:42,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379762120] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:21:42,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:21:42,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 20:21:42,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412163639] [2022-11-16 20:21:42,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:21:42,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 20:21:42,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:21:42,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 20:21:42,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-16 20:21:42,494 INFO L87 Difference]: Start difference. First operand 33 states and 40 transitions. Second operand has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:21:42,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:21:42,804 INFO L93 Difference]: Finished difference Result 44 states and 51 transitions. [2022-11-16 20:21:42,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 20:21:42,804 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-16 20:21:42,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:21:42,805 INFO L225 Difference]: With dead ends: 44 [2022-11-16 20:21:42,805 INFO L226 Difference]: Without dead ends: 31 [2022-11-16 20:21:42,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-16 20:21:42,807 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 11 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 20:21:42,808 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 66 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 20:21:42,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-11-16 20:21:42,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2022-11-16 20:21:42,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 29 states have (on average 1.2758620689655173) internal successors, (37), 30 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:21:42,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 37 transitions. [2022-11-16 20:21:42,813 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 37 transitions. Word has length 11 [2022-11-16 20:21:42,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:21:42,814 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 37 transitions. [2022-11-16 20:21:42,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:21:42,814 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 37 transitions. [2022-11-16 20:21:42,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-16 20:21:42,815 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:21:42,815 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:21:42,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 20:21:42,815 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:21:42,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:21:42,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1079887144, now seen corresponding path program 1 times [2022-11-16 20:21:42,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:21:42,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218372557] [2022-11-16 20:21:42,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:21:42,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:21:42,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:21:43,024 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 20:21:43,024 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:21:43,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218372557] [2022-11-16 20:21:43,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218372557] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 20:21:43,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1012011206] [2022-11-16 20:21:43,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:21:43,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:21:43,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_378d9a45-791e-4bf0-97a3-a7dad4eaa08b/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:21:43,030 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_378d9a45-791e-4bf0-97a3-a7dad4eaa08b/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 20:21:43,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_378d9a45-791e-4bf0-97a3-a7dad4eaa08b/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 20:21:43,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:21:43,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-16 20:21:43,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 20:21:43,220 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-16 20:21:43,292 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2022-11-16 20:21:43,311 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-16 20:21:43,311 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-11-16 20:21:43,326 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 20:21:43,347 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-16 20:21:43,350 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 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-16 20:21:43,411 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-16 20:21:43,527 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 27 [2022-11-16 20:21:43,535 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2022-11-16 20:21:43,547 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 20:21:43,547 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 20:21:43,652 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 20:21:43,652 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 20 [2022-11-16 20:21:43,683 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 20:21:43,683 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 41 [2022-11-16 20:21:43,690 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2022-11-16 20:21:43,833 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 20:21:43,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1012011206] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 20:21:43,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1604850452] [2022-11-16 20:21:43,859 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-11-16 20:21:43,859 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 20:21:43,862 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 20:21:43,868 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 20:21:43,868 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 20:21:43,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:21:43,928 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 [2022-11-16 20:21:43,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:21:43,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:21:43,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:21:43,976 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-16 20:21:43,977 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 31 treesize of output 41 [2022-11-16 20:21:44,032 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-16 20:21:44,033 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 [2022-11-16 20:21:44,054 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 [2022-11-16 20:21:44,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:21:44,073 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 [2022-11-16 20:21:44,184 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-16 20:21:44,186 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 35 treesize of output 18 [2022-11-16 20:21:44,257 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-11-16 20:21:44,260 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 32 treesize of output 53 [2022-11-16 20:21:44,282 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-16 20:21:44,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:21:44,321 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 55 treesize of output 40 [2022-11-16 20:21:44,337 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 18 [2022-11-16 20:21:44,377 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 37 treesize of output 42 [2022-11-16 20:21:44,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:21:44,392 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-16 20:21:44,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:21:44,409 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-16 20:21:44,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:21:44,540 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-11-16 20:21:44,541 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 3 new quantified variables, introduced 4 case distinctions, treesize of input 204 treesize of output 113 [2022-11-16 20:21:44,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:21:44,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:21:44,597 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-16 20:21:44,598 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 13 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 4 case distinctions, treesize of input 41 treesize of output 61 [2022-11-16 20:21:44,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:21:44,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:21:44,620 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 32 [2022-11-16 20:21:44,644 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 47 [2022-11-16 20:21:44,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:21:44,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:21:44,661 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 47 [2022-11-16 20:21:44,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:21:44,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:21:44,703 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 42 [2022-11-16 20:21:44,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:21:44,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:21:44,867 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:21:44,868 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:21:44,875 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-16 20:21:44,876 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 398 treesize of output 347 [2022-11-16 20:21:44,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:21:44,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:21:44,896 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:21:44,898 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:21:44,936 INFO L321 Elim1Store]: treesize reduction 50, result has 36.7 percent of original size [2022-11-16 20:21:44,937 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 392 treesize of output 394 [2022-11-16 20:21:44,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:21:44,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:21:44,964 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:21:44,965 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:21:44,971 INFO L321 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2022-11-16 20:21:44,972 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 390 treesize of output 372 [2022-11-16 20:21:45,252 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:21:45,253 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:21:45,365 INFO L321 Elim1Store]: treesize reduction 96, result has 26.2 percent of original size [2022-11-16 20:21:45,366 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 414 treesize of output 370 [2022-11-16 20:21:45,413 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:21:45,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:21:45,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:21:45,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:21:45,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:21:45,433 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:21:45,434 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:21:45,459 INFO L321 Elim1Store]: treesize reduction 53, result has 11.7 percent of original size [2022-11-16 20:21:45,460 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 395 treesize of output 381 [2022-11-16 20:21:45,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:21:45,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:21:45,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:21:45,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:21:45,505 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:21:45,506 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:21:45,528 INFO L321 Elim1Store]: treesize reduction 53, result has 11.7 percent of original size [2022-11-16 20:21:45,528 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 395 treesize of output 381 [2022-11-16 20:21:45,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:21:45,701 INFO L321 Elim1Store]: treesize reduction 226, result has 14.4 percent of original size [2022-11-16 20:21:45,702 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 5 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 382 treesize of output 395 [2022-11-16 20:21:45,753 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:21:45,755 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:21:45,813 INFO L321 Elim1Store]: treesize reduction 144, result has 15.3 percent of original size [2022-11-16 20:21:45,814 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 398 treesize of output 379 [2022-11-16 20:21:45,902 INFO L321 Elim1Store]: treesize reduction 142, result has 12.3 percent of original size [2022-11-16 20:21:45,903 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 369 treesize of output 375 [2022-11-16 20:21:46,580 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 19 treesize of output 1 [2022-11-16 20:21:46,584 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 19 treesize of output 1 [2022-11-16 20:21:46,588 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 [2022-11-16 20:21:46,622 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-16 20:21:46,628 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-16 20:21:46,666 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-16 20:21:46,666 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 1 case distinctions, treesize of input 27 treesize of output 19 [2022-11-16 20:21:46,691 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-16 20:21:46,691 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 1 case distinctions, treesize of input 27 treesize of output 15 [2022-11-16 20:21:46,723 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-16 20:21:46,723 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 22 [2022-11-16 20:21:46,746 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 19 treesize of output 1 [2022-11-16 20:21:46,750 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 [2022-11-16 20:21:46,754 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 19 treesize of output 1 [2022-11-16 20:21:46,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:21:46,843 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 159 treesize of output 143 [2022-11-16 20:21:46,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:21:46,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:21:46,861 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:21:46,893 INFO L321 Elim1Store]: treesize reduction 14, result has 61.1 percent of original size [2022-11-16 20:21:46,893 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 153 treesize of output 164 [2022-11-16 20:21:46,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:21:46,917 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 147 treesize of output 131 [2022-11-16 20:21:47,080 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 20:21:48,074 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '533#(and (<= 1 |ULTIMATE.start_main_~state~0#1|) (= |ULTIMATE.start_main_~x~0#1.offset| 0) (<= |#NULL.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~head~0#1.base|) |ULTIMATE.start_main_~head~0#1.offset|) |ULTIMATE.start_main_~x~0#1.offset|) (= |ULTIMATE.start_main_~x~0#1.base| 0) (<= |ULTIMATE.start_main_~head~0#1.offset| 0) (= |ULTIMATE.start_main_~x~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~head~0#1.base|) |ULTIMATE.start_main_~head~0#1.offset|)) (<= |ULTIMATE.start_main_~state~0#1| 1) (<= 0 |#NULL.offset|) (<= 0 |ULTIMATE.start_main_~head~0#1.offset|) (or (and (not (= |ULTIMATE.start_main_~head~0#1.base| 0)) (= |ULTIMATE.start_main_~state~0#1| (select (select |#memory_int| |ULTIMATE.start_main_~head~0#1.base|) 4)) (= |#NULL.base| 0)) (and (exists ((|v_ULTIMATE.start_main_~x~0#1.base_38| Int)) (and (= (select (select |#memory_int| |v_ULTIMATE.start_main_~x~0#1.base_38|) 4) |ULTIMATE.start_main_~state~0#1|) (not (= |v_ULTIMATE.start_main_~x~0#1.base_38| 0)) (not (= |v_ULTIMATE.start_main_~x~0#1.base_38| |ULTIMATE.start_main_~head~0#1.base|)))) (= |#NULL.base| 0))) (<= 0 |#StackHeapBarrier|))' at error location [2022-11-16 20:21:48,075 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-16 20:21:48,075 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 20:21:48,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2022-11-16 20:21:48,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102529855] [2022-11-16 20:21:48,075 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 20:21:48,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 20:21:48,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:21:48,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 20:21:48,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2022-11-16 20:21:48,077 INFO L87 Difference]: Start difference. First operand 31 states and 37 transitions. Second operand has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:21:48,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:21:48,186 INFO L93 Difference]: Finished difference Result 56 states and 65 transitions. [2022-11-16 20:21:48,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 20:21:48,191 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-16 20:21:48,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:21:48,192 INFO L225 Difference]: With dead ends: 56 [2022-11-16 20:21:48,192 INFO L226 Difference]: Without dead ends: 54 [2022-11-16 20:21:48,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-16 20:21:48,193 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 40 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 20 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 20:21:48,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 89 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 36 Invalid, 0 Unknown, 20 Unchecked, 0.1s Time] [2022-11-16 20:21:48,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-11-16 20:21:48,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 45. [2022-11-16 20:21:48,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 43 states have (on average 1.255813953488372) internal successors, (54), 44 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:21:48,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 54 transitions. [2022-11-16 20:21:48,202 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 54 transitions. Word has length 12 [2022-11-16 20:21:48,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:21:48,202 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 54 transitions. [2022-11-16 20:21:48,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:21:48,203 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 54 transitions. [2022-11-16 20:21:48,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-16 20:21:48,204 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:21:48,204 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:21:48,216 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_378d9a45-791e-4bf0-97a3-a7dad4eaa08b/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 20:21:48,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_378d9a45-791e-4bf0-97a3-a7dad4eaa08b/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:21:48,411 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:21:48,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:21:48,412 INFO L85 PathProgramCache]: Analyzing trace with hash 803507937, now seen corresponding path program 1 times [2022-11-16 20:21:48,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:21:48,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260025378] [2022-11-16 20:21:48,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:21:48,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:21:48,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:21:48,462 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 20:21:48,462 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:21:48,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260025378] [2022-11-16 20:21:48,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260025378] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:21:48,463 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:21:48,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 20:21:48,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577113009] [2022-11-16 20:21:48,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:21:48,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 20:21:48,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:21:48,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 20:21:48,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:21:48,466 INFO L87 Difference]: Start difference. First operand 45 states and 54 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:21:48,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:21:48,498 INFO L93 Difference]: Finished difference Result 89 states and 106 transitions. [2022-11-16 20:21:48,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 20:21:48,499 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-16 20:21:48,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:21:48,504 INFO L225 Difference]: With dead ends: 89 [2022-11-16 20:21:48,504 INFO L226 Difference]: Without dead ends: 68 [2022-11-16 20:21:48,504 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:21:48,507 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 15 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 20:21:48,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 58 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 20:21:48,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-11-16 20:21:48,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 53. [2022-11-16 20:21:48,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 51 states have (on average 1.2549019607843137) internal successors, (64), 52 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:21:48,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 64 transitions. [2022-11-16 20:21:48,531 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 64 transitions. Word has length 16 [2022-11-16 20:21:48,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:21:48,532 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 64 transitions. [2022-11-16 20:21:48,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:21:48,532 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 64 transitions. [2022-11-16 20:21:48,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-16 20:21:48,533 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:21:48,533 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:21:48,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 20:21:48,534 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:21:48,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:21:48,534 INFO L85 PathProgramCache]: Analyzing trace with hash -998590188, now seen corresponding path program 1 times [2022-11-16 20:21:48,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:21:48,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940264436] [2022-11-16 20:21:48,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:21:48,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:21:48,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:21:49,534 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 20:21:49,535 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:21:49,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940264436] [2022-11-16 20:21:49,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940264436] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 20:21:49,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [166427697] [2022-11-16 20:21:49,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:21:49,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:21:49,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_378d9a45-791e-4bf0-97a3-a7dad4eaa08b/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:21:49,537 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_378d9a45-791e-4bf0-97a3-a7dad4eaa08b/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 20:21:49,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_378d9a45-791e-4bf0-97a3-a7dad4eaa08b/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 20:21:49,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:21:49,653 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 59 conjunts are in the unsatisfiable core [2022-11-16 20:21:49,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 20:21:49,668 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-16 20:21:49,675 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 [2022-11-16 20:21:49,751 INFO L321 Elim1Store]: treesize reduction 13, result has 58.1 percent of original size [2022-11-16 20:21:49,751 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 54 [2022-11-16 20:21:49,782 INFO L321 Elim1Store]: treesize reduction 35, result has 34.0 percent of original size [2022-11-16 20:21:49,782 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 71 [2022-11-16 20:21:49,795 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-16 20:21:49,815 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-16 20:21:49,838 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 24 treesize of output 17 [2022-11-16 20:21:49,846 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 20:21:49,854 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 71 [2022-11-16 20:21:49,918 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:21:49,920 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-16 20:21:49,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:21:49,944 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 26 [2022-11-16 20:21:49,961 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-16 20:21:49,962 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 16 treesize of output 22 [2022-11-16 20:21:49,969 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-16 20:21:50,012 INFO L321 Elim1Store]: treesize reduction 13, result has 58.1 percent of original size [2022-11-16 20:21:50,013 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 54 [2022-11-16 20:21:50,058 INFO L321 Elim1Store]: treesize reduction 39, result has 26.4 percent of original size [2022-11-16 20:21:50,058 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 67 [2022-11-16 20:21:50,078 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-16 20:21:50,119 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-16 20:21:50,152 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 5 [2022-11-16 20:21:50,158 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 20:21:50,170 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 45 [2022-11-16 20:21:50,185 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:21:50,190 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 25 treesize of output 3 [2022-11-16 20:21:50,229 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-16 20:21:50,230 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-16 20:21:50,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:21:50,361 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-16 20:21:50,385 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-16 20:21:50,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:21:50,401 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-16 20:21:50,531 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 20:21:50,531 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 79 treesize of output 56 [2022-11-16 20:21:50,540 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 54 treesize of output 48 [2022-11-16 20:21:50,546 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-16 20:21:50,751 INFO L321 Elim1Store]: treesize reduction 30, result has 9.1 percent of original size [2022-11-16 20:21:50,751 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 3 case distinctions, treesize of input 282 treesize of output 154 [2022-11-16 20:21:50,764 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:21:50,778 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 20:21:50,778 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 117 treesize of output 105 [2022-11-16 20:21:50,788 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 20:21:50,788 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 20:21:51,075 INFO L321 Elim1Store]: treesize reduction 13, result has 69.0 percent of original size [2022-11-16 20:21:51,075 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 805 treesize of output 707 [2022-11-16 20:21:51,239 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 20:21:51,239 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 2455 treesize of output 2553 [2022-11-16 20:21:51,362 INFO L321 Elim1Store]: treesize reduction 13, result has 69.0 percent of original size [2022-11-16 20:21:51,363 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 4155 treesize of output 3175 [2022-11-16 20:21:51,428 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 20:21:51,428 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 3147 treesize of output 2823 [2022-11-16 20:21:51,903 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 20:21:51,905 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 9167 treesize of output 8605 [2022-11-16 20:21:52,509 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 20:21:52,510 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 8385 treesize of output 7987 [2022-11-16 20:21:53,151 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 20:21:53,153 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 44231 treesize of output 43209 [2022-11-16 20:21:57,742 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 20:21:57,742 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 146 treesize of output 140 [2022-11-16 20:21:58,864 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-16 20:22:01,717 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 20:22:01,717 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 260 treesize of output 251 [2022-11-16 20:22:03,986 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-16 20:22:06,332 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-16 20:22:12,845 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 20:22:12,846 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 2131 treesize of output 2127 [2022-11-16 20:22:25,635 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-16 20:22:25,730 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-16 20:22:31,761 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-16 20:22:31,846 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-16 20:22:33,709 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 20:22:33,710 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1101 treesize of output 1055 [2022-11-16 20:22:44,383 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-16 20:22:44,478 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-16 20:22:46,221 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-16 20:22:48,179 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-16 20:22:48,270 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-16 20:22:59,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:00,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:00,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:00,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:01,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:01,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:01,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:01,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:02,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:02,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:02,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:04,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:04,471 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 966 treesize of output 958 [2022-11-16 20:23:05,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:05,383 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 742 treesize of output 734 [2022-11-16 20:23:06,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:06,133 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 742 treesize of output 734 [2022-11-16 20:23:06,765 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:23:06,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:06,835 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-16 20:23:06,836 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 527 treesize of output 1 [2022-11-16 20:23:09,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:09,623 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1117 treesize of output 1109 [2022-11-16 20:23:11,354 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:23:11,438 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 20:23:11,439 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 501 treesize of output 495 [2022-11-16 20:23:12,214 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:23:12,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:12,249 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 455 treesize of output 447 [2022-11-16 20:23:13,070 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:23:13,071 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:23:13,154 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 20:23:13,155 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 1 case distinctions, treesize of input 460 treesize of output 454 [2022-11-16 20:23:14,144 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:23:14,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:14,182 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 443 treesize of output 435 [2022-11-16 20:23:15,546 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 20:23:15,546 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 2426 treesize of output 2396 [2022-11-16 20:23:23,533 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:23:23,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:23,573 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 488 treesize of output 480 [2022-11-16 20:23:24,487 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:23:24,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:24,527 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 440 treesize of output 432 [2022-11-16 20:23:25,591 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:23:25,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:25,628 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 455 treesize of output 447 [2022-11-16 20:23:26,312 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:23:26,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:26,355 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 443 treesize of output 435 [2022-11-16 20:23:26,847 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:23:26,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:26,886 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 443 treesize of output 435 [2022-11-16 20:23:29,375 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-16 20:23:29,375 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 2771 treesize of output 1 [2022-11-16 20:23:31,517 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:23:31,688 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-16 20:23:31,689 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 1 case distinctions, treesize of input 937 treesize of output 1 [2022-11-16 20:23:34,203 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:23:34,281 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-16 20:23:34,282 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 1 case distinctions, treesize of input 937 treesize of output 1 [2022-11-16 20:23:40,772 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-16 20:23:40,772 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 2929 treesize of output 1 [2022-11-16 20:23:57,190 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:23:57,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:57,235 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 443 treesize of output 435 [2022-11-16 20:23:57,703 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:23:57,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:57,750 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 455 treesize of output 447 [2022-11-16 20:23:59,089 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:23:59,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:23:59,129 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 443 treesize of output 435 [2022-11-16 20:24:00,213 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:24:00,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:24:00,255 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 798 treesize of output 790 [2022-11-16 20:24:00,644 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:24:00,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:24:00,689 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 488 treesize of output 480 [2022-11-16 20:24:01,210 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:24:01,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:24:01,257 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 440 treesize of output 432 [2022-11-16 20:24:02,134 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:24:02,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:24:02,172 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 455 treesize of output 447 [2022-11-16 20:24:02,740 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:24:02,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:24:02,779 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 443 treesize of output 435 [2022-11-16 20:24:03,217 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:24:03,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:24:03,259 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 443 treesize of output 435 [2022-11-16 20:24:03,710 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:24:03,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:24:03,753 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1002 treesize of output 994 [2022-11-16 20:24:06,195 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:24:06,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:24:06,238 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1117 treesize of output 1109 [2022-11-16 20:24:18,545 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-11-16 20:24:18,545 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 2515 treesize of output 2436 [2022-11-16 20:24:21,337 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-16 20:24:29,739 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-16 20:24:30,505 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-16 20:24:30,777 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-16 20:24:31,266 WARN L207 Elim1Store]: Array PQE input equivalent to true