./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-pthread/cs_read_write_lock-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9514d5f3-54f8-4520-925a-c84ffcf077f3/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9514d5f3-54f8-4520-925a-c84ffcf077f3/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9514d5f3-54f8-4520-925a-c84ffcf077f3/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9514d5f3-54f8-4520-925a-c84ffcf077f3/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-pthread/cs_read_write_lock-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9514d5f3-54f8-4520-925a-c84ffcf077f3/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9514d5f3-54f8-4520-925a-c84ffcf077f3/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1458378674bd140ace04512980940eeb05aa22f50528a181d147a292aa3349d2 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 10:17:12,936 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 10:17:12,938 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 10:17:12,958 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 10:17:12,959 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 10:17:12,960 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 10:17:12,961 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 10:17:12,962 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 10:17:12,964 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 10:17:12,965 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 10:17:12,966 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 10:17:12,967 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 10:17:12,968 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 10:17:12,969 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 10:17:12,970 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 10:17:12,971 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 10:17:12,972 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 10:17:12,973 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 10:17:12,974 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 10:17:12,976 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 10:17:12,978 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 10:17:12,979 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 10:17:12,980 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 10:17:12,981 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 10:17:12,985 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 10:17:12,985 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 10:17:12,986 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 10:17:12,987 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 10:17:12,987 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 10:17:12,988 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 10:17:12,988 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 10:17:12,989 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 10:17:12,990 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 10:17:12,990 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 10:17:12,991 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 10:17:12,992 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 10:17:12,992 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 10:17:12,992 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 10:17:12,992 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 10:17:12,993 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 10:17:12,993 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 10:17:12,994 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9514d5f3-54f8-4520-925a-c84ffcf077f3/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 10:17:13,017 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 10:17:13,018 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 10:17:13,018 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 10:17:13,018 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 10:17:13,019 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 10:17:13,019 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 10:17:13,019 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 10:17:13,020 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 10:17:13,020 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 10:17:13,020 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 10:17:13,020 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 10:17:13,020 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 10:17:13,020 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 10:17:13,021 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 10:17:13,021 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 10:17:13,021 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 10:17:13,021 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 10:17:13,021 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 10:17:13,022 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 10:17:13,022 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 10:17:13,022 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 10:17:13,022 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 10:17:13,022 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 10:17:13,023 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 10:17:13,023 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 10:17:13,023 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 10:17:13,023 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 10:17:13,023 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 10:17:13,023 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 10:17:13,024 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 10:17:13,024 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 10:17:13,024 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 10:17:13,024 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:17:13,024 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 10:17:13,024 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 10:17:13,025 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 10:17:13,025 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 10:17:13,025 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 10:17:13,025 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 10:17:13,025 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 10:17:13,025 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 10:17:13,025 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_9514d5f3-54f8-4520-925a-c84ffcf077f3/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9514d5f3-54f8-4520-925a-c84ffcf077f3/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1458378674bd140ace04512980940eeb05aa22f50528a181d147a292aa3349d2 [2022-12-14 10:17:13,226 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 10:17:13,241 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 10:17:13,243 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 10:17:13,244 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 10:17:13,244 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 10:17:13,245 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9514d5f3-54f8-4520-925a-c84ffcf077f3/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/seq-pthread/cs_read_write_lock-2.i [2022-12-14 10:17:15,835 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 10:17:16,044 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 10:17:16,045 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9514d5f3-54f8-4520-925a-c84ffcf077f3/sv-benchmarks/c/seq-pthread/cs_read_write_lock-2.i [2022-12-14 10:17:16,057 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9514d5f3-54f8-4520-925a-c84ffcf077f3/bin/utaipan-gh47qXpMRh/data/aa7b9d330/b55614d73d7d46e4a3b377c9f7a4208e/FLAG252faeac4 [2022-12-14 10:17:16,419 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9514d5f3-54f8-4520-925a-c84ffcf077f3/bin/utaipan-gh47qXpMRh/data/aa7b9d330/b55614d73d7d46e4a3b377c9f7a4208e [2022-12-14 10:17:16,424 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 10:17:16,426 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 10:17:16,428 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 10:17:16,428 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 10:17:16,432 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 10:17:16,433 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:17:16" (1/1) ... [2022-12-14 10:17:16,434 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14a3e5a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:17:16, skipping insertion in model container [2022-12-14 10:17:16,434 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:17:16" (1/1) ... [2022-12-14 10:17:16,441 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 10:17:16,477 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 10:17:16,667 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9514d5f3-54f8-4520-925a-c84ffcf077f3/sv-benchmarks/c/seq-pthread/cs_read_write_lock-2.i[23469,23482] [2022-12-14 10:17:16,734 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:17:16,746 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 10:17:16,768 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9514d5f3-54f8-4520-925a-c84ffcf077f3/sv-benchmarks/c/seq-pthread/cs_read_write_lock-2.i[23469,23482] [2022-12-14 10:17:16,818 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:17:16,857 INFO L208 MainTranslator]: Completed translation [2022-12-14 10:17:16,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:17:16 WrapperNode [2022-12-14 10:17:16,857 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 10:17:16,858 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 10:17:16,858 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 10:17:16,858 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 10:17:16,863 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:17:16" (1/1) ... [2022-12-14 10:17:16,878 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:17:16" (1/1) ... [2022-12-14 10:17:16,901 INFO L138 Inliner]: procedures = 145, calls = 279, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 558 [2022-12-14 10:17:16,902 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 10:17:16,902 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 10:17:16,902 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 10:17:16,902 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 10:17:16,910 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:17:16" (1/1) ... [2022-12-14 10:17:16,910 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:17:16" (1/1) ... [2022-12-14 10:17:16,914 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:17:16" (1/1) ... [2022-12-14 10:17:16,915 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:17:16" (1/1) ... [2022-12-14 10:17:16,928 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:17:16" (1/1) ... [2022-12-14 10:17:16,931 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:17:16" (1/1) ... [2022-12-14 10:17:16,933 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:17:16" (1/1) ... [2022-12-14 10:17:16,935 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:17:16" (1/1) ... [2022-12-14 10:17:16,939 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 10:17:16,939 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 10:17:16,939 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 10:17:16,940 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 10:17:16,940 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:17:16" (1/1) ... [2022-12-14 10:17:16,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:17:16,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9514d5f3-54f8-4520-925a-c84ffcf077f3/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:17:16,965 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9514d5f3-54f8-4520-925a-c84ffcf077f3/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 10:17:16,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9514d5f3-54f8-4520-925a-c84ffcf077f3/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 10:17:17,000 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 10:17:17,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 10:17:17,001 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 10:17:17,001 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 10:17:17,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 10:17:17,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 10:17:17,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 10:17:17,001 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2022-12-14 10:17:17,001 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2022-12-14 10:17:17,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 10:17:17,001 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_join [2022-12-14 10:17:17,001 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_join [2022-12-14 10:17:17,001 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2022-12-14 10:17:17,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2022-12-14 10:17:17,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 10:17:17,002 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2022-12-14 10:17:17,002 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2022-12-14 10:17:17,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 10:17:17,002 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_assume [2022-12-14 10:17:17,002 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_assume [2022-12-14 10:17:17,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 10:17:17,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 10:17:17,152 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 10:17:17,153 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 10:17:17,442 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##42: assume !(0 != ~__CS_ret~0 % 256); [2022-12-14 10:17:17,443 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##41: assume 0 != ~__CS_ret~0 % 256;reader_#res#1.base, reader_#res#1.offset := 0, 0; [2022-12-14 10:17:19,753 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 10:17:19,857 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 10:17:19,857 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 10:17:19,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:17:19 BoogieIcfgContainer [2022-12-14 10:17:19,859 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 10:17:19,861 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 10:17:19,861 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 10:17:19,863 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 10:17:19,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 10:17:16" (1/3) ... [2022-12-14 10:17:19,864 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52732ab2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:17:19, skipping insertion in model container [2022-12-14 10:17:19,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:17:16" (2/3) ... [2022-12-14 10:17:19,864 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52732ab2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:17:19, skipping insertion in model container [2022-12-14 10:17:19,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:17:19" (3/3) ... [2022-12-14 10:17:19,865 INFO L112 eAbstractionObserver]: Analyzing ICFG cs_read_write_lock-2.i [2022-12-14 10:17:19,879 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 10:17:19,879 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 10:17:19,915 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 10:17:19,920 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;@6f01e2db, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 10:17:19,920 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 10:17:19,923 INFO L276 IsEmpty]: Start isEmpty. Operand has 145 states, 84 states have (on average 1.369047619047619) internal successors, (115), 85 states have internal predecessors, (115), 53 states have call successors, (53), 6 states have call predecessors, (53), 6 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2022-12-14 10:17:19,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-12-14 10:17:19,935 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:17:19,936 INFO L195 NwaCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:17:19,936 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:17:19,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:17:19,941 INFO L85 PathProgramCache]: Analyzing trace with hash 2048231144, now seen corresponding path program 1 times [2022-12-14 10:17:19,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:17:19,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266345313] [2022-12-14 10:17:19,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:17:19,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:17:20,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:17:21,444 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2022-12-14 10:17:21,444 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:17:21,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266345313] [2022-12-14 10:17:21,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266345313] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:17:21,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:17:21,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 10:17:21,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507618491] [2022-12-14 10:17:21,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:17:21,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 10:17:21,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:17:21,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 10:17:21,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 10:17:21,483 INFO L87 Difference]: Start difference. First operand has 145 states, 84 states have (on average 1.369047619047619) internal successors, (115), 85 states have internal predecessors, (115), 53 states have call successors, (53), 6 states have call predecessors, (53), 6 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2022-12-14 10:17:23,507 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:17:23,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:17:23,796 INFO L93 Difference]: Finished difference Result 289 states and 447 transitions. [2022-12-14 10:17:23,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 10:17:23,798 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 69 [2022-12-14 10:17:23,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:17:23,815 INFO L225 Difference]: With dead ends: 289 [2022-12-14 10:17:23,815 INFO L226 Difference]: Without dead ends: 250 [2022-12-14 10:17:23,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:17:23,822 INFO L413 NwaCegarLoop]: 269 mSDtfsCounter, 180 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 736 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-12-14 10:17:23,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 736 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 74 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-12-14 10:17:23,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2022-12-14 10:17:23,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 249. [2022-12-14 10:17:23,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 145 states have (on average 1.3862068965517242) internal successors, (201), 146 states have internal predecessors, (201), 91 states have call successors, (91), 12 states have call predecessors, (91), 12 states have return successors, (99), 90 states have call predecessors, (99), 91 states have call successors, (99) [2022-12-14 10:17:23,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 391 transitions. [2022-12-14 10:17:23,928 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 391 transitions. Word has length 69 [2022-12-14 10:17:23,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:17:23,928 INFO L495 AbstractCegarLoop]: Abstraction has 249 states and 391 transitions. [2022-12-14 10:17:23,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2022-12-14 10:17:23,929 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 391 transitions. [2022-12-14 10:17:23,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-12-14 10:17:23,951 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:17:23,951 INFO L195 NwaCegarLoop]: trace histogram [19, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:17:23,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 10:17:23,951 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:17:23,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:17:23,952 INFO L85 PathProgramCache]: Analyzing trace with hash 36919427, now seen corresponding path program 1 times [2022-12-14 10:17:23,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:17:23,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858860163] [2022-12-14 10:17:23,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:17:23,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:17:24,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:17:24,983 INFO L134 CoverageAnalysis]: Checked inductivity of 382 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked. [2022-12-14 10:17:24,983 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:17:24,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858860163] [2022-12-14 10:17:24,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858860163] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:17:24,984 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:17:24,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 10:17:24,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130237305] [2022-12-14 10:17:24,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:17:24,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 10:17:24,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:17:24,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 10:17:24,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 10:17:24,987 INFO L87 Difference]: Start difference. First operand 249 states and 391 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 4 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2022-12-14 10:17:26,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:17:27,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:17:27,283 INFO L93 Difference]: Finished difference Result 458 states and 723 transitions. [2022-12-14 10:17:27,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 10:17:27,284 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 4 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) Word has length 122 [2022-12-14 10:17:27,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:17:27,291 INFO L225 Difference]: With dead ends: 458 [2022-12-14 10:17:27,291 INFO L226 Difference]: Without dead ends: 419 [2022-12-14 10:17:27,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:17:27,295 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 184 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 24 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-12-14 10:17:27,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 524 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 131 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-12-14 10:17:27,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2022-12-14 10:17:27,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 409. [2022-12-14 10:17:27,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 239 states have (on average 1.3765690376569037) internal successors, (329), 244 states have internal predecessors, (329), 146 states have call successors, (146), 20 states have call predecessors, (146), 23 states have return successors, (177), 144 states have call predecessors, (177), 146 states have call successors, (177) [2022-12-14 10:17:27,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 652 transitions. [2022-12-14 10:17:27,358 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 652 transitions. Word has length 122 [2022-12-14 10:17:27,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:17:27,358 INFO L495 AbstractCegarLoop]: Abstraction has 409 states and 652 transitions. [2022-12-14 10:17:27,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 4 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2022-12-14 10:17:27,359 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 652 transitions. [2022-12-14 10:17:27,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-12-14 10:17:27,369 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:17:27,369 INFO L195 NwaCegarLoop]: trace histogram [19, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:17:27,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 10:17:27,370 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:17:27,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:17:27,370 INFO L85 PathProgramCache]: Analyzing trace with hash 2105281718, now seen corresponding path program 1 times [2022-12-14 10:17:27,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:17:27,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597839346] [2022-12-14 10:17:27,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:17:27,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:17:27,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:17:28,210 INFO L134 CoverageAnalysis]: Checked inductivity of 382 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked. [2022-12-14 10:17:28,210 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:17:28,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597839346] [2022-12-14 10:17:28,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597839346] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:17:28,211 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:17:28,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 10:17:28,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93120625] [2022-12-14 10:17:28,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:17:28,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 10:17:28,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:17:28,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 10:17:28,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 10:17:28,213 INFO L87 Difference]: Start difference. First operand 409 states and 652 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 4 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2022-12-14 10:17:30,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:17:30,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:17:30,489 INFO L93 Difference]: Finished difference Result 729 states and 1140 transitions. [2022-12-14 10:17:30,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 10:17:30,489 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 4 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) Word has length 122 [2022-12-14 10:17:30,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:17:30,494 INFO L225 Difference]: With dead ends: 729 [2022-12-14 10:17:30,495 INFO L226 Difference]: Without dead ends: 415 [2022-12-14 10:17:30,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:17:30,500 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 186 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 23 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-12-14 10:17:30,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 533 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 131 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-12-14 10:17:30,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2022-12-14 10:17:30,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 405. [2022-12-14 10:17:30,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 236 states have (on average 1.3771186440677967) internal successors, (325), 241 states have internal predecessors, (325), 145 states have call successors, (145), 20 states have call predecessors, (145), 23 states have return successors, (171), 143 states have call predecessors, (171), 145 states have call successors, (171) [2022-12-14 10:17:30,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 641 transitions. [2022-12-14 10:17:30,547 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 641 transitions. Word has length 122 [2022-12-14 10:17:30,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:17:30,548 INFO L495 AbstractCegarLoop]: Abstraction has 405 states and 641 transitions. [2022-12-14 10:17:30,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 4 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2022-12-14 10:17:30,548 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 641 transitions. [2022-12-14 10:17:30,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-12-14 10:17:30,554 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:17:30,554 INFO L195 NwaCegarLoop]: trace histogram [19, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:17:30,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 10:17:30,555 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:17:30,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:17:30,555 INFO L85 PathProgramCache]: Analyzing trace with hash 338862315, now seen corresponding path program 1 times [2022-12-14 10:17:30,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:17:30,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952614178] [2022-12-14 10:17:30,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:17:30,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:17:30,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:17:31,438 INFO L134 CoverageAnalysis]: Checked inductivity of 382 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked. [2022-12-14 10:17:31,438 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:17:31,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952614178] [2022-12-14 10:17:31,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952614178] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:17:31,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:17:31,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 10:17:31,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468816703] [2022-12-14 10:17:31,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:17:31,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 10:17:31,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:17:31,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 10:17:31,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 10:17:31,441 INFO L87 Difference]: Start difference. First operand 405 states and 641 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 4 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2022-12-14 10:17:33,457 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:17:33,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:17:33,717 INFO L93 Difference]: Finished difference Result 737 states and 1149 transitions. [2022-12-14 10:17:33,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 10:17:33,717 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 4 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) Word has length 122 [2022-12-14 10:17:33,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:17:33,721 INFO L225 Difference]: With dead ends: 737 [2022-12-14 10:17:33,721 INFO L226 Difference]: Without dead ends: 411 [2022-12-14 10:17:33,723 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:17:33,725 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 188 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 22 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-12-14 10:17:33,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 542 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 129 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-12-14 10:17:33,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2022-12-14 10:17:33,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 401. [2022-12-14 10:17:33,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 233 states have (on average 1.3776824034334765) internal successors, (321), 238 states have internal predecessors, (321), 144 states have call successors, (144), 20 states have call predecessors, (144), 23 states have return successors, (165), 142 states have call predecessors, (165), 144 states have call successors, (165) [2022-12-14 10:17:33,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 630 transitions. [2022-12-14 10:17:33,760 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 630 transitions. Word has length 122 [2022-12-14 10:17:33,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:17:33,760 INFO L495 AbstractCegarLoop]: Abstraction has 401 states and 630 transitions. [2022-12-14 10:17:33,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 4 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2022-12-14 10:17:33,761 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 630 transitions. [2022-12-14 10:17:33,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-12-14 10:17:33,765 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:17:33,765 INFO L195 NwaCegarLoop]: trace histogram [19, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:17:33,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 10:17:33,766 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:17:33,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:17:33,766 INFO L85 PathProgramCache]: Analyzing trace with hash -985888801, now seen corresponding path program 1 times [2022-12-14 10:17:33,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:17:33,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356459714] [2022-12-14 10:17:33,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:17:33,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:17:33,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:17:34,740 INFO L134 CoverageAnalysis]: Checked inductivity of 382 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked. [2022-12-14 10:17:34,740 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:17:34,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356459714] [2022-12-14 10:17:34,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356459714] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:17:34,741 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:17:34,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 10:17:34,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689253082] [2022-12-14 10:17:34,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:17:34,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 10:17:34,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:17:34,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 10:17:34,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 10:17:34,742 INFO L87 Difference]: Start difference. First operand 401 states and 630 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 4 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2022-12-14 10:17:36,755 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:17:36,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:17:36,967 INFO L93 Difference]: Finished difference Result 745 states and 1158 transitions. [2022-12-14 10:17:36,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 10:17:36,967 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 4 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) Word has length 122 [2022-12-14 10:17:36,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:17:36,970 INFO L225 Difference]: With dead ends: 745 [2022-12-14 10:17:36,970 INFO L226 Difference]: Without dead ends: 357 [2022-12-14 10:17:36,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:17:36,972 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 190 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 21 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-12-14 10:17:36,973 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 548 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 127 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-12-14 10:17:36,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2022-12-14 10:17:36,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 351. [2022-12-14 10:17:36,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 205 states have (on average 1.3073170731707318) internal successors, (268), 208 states have internal predecessors, (268), 123 states have call successors, (123), 20 states have call predecessors, (123), 22 states have return successors, (139), 122 states have call predecessors, (139), 123 states have call successors, (139) [2022-12-14 10:17:36,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 530 transitions. [2022-12-14 10:17:36,994 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 530 transitions. Word has length 122 [2022-12-14 10:17:36,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:17:36,994 INFO L495 AbstractCegarLoop]: Abstraction has 351 states and 530 transitions. [2022-12-14 10:17:36,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 4 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2022-12-14 10:17:36,994 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 530 transitions. [2022-12-14 10:17:36,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-12-14 10:17:36,997 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:17:36,997 INFO L195 NwaCegarLoop]: trace histogram [19, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:17:36,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 10:17:36,997 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:17:36,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:17:36,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1563773822, now seen corresponding path program 1 times [2022-12-14 10:17:36,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:17:36,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124874761] [2022-12-14 10:17:36,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:17:36,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:17:37,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:17:37,860 INFO L134 CoverageAnalysis]: Checked inductivity of 382 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked. [2022-12-14 10:17:37,860 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:17:37,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124874761] [2022-12-14 10:17:37,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124874761] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:17:37,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:17:37,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 10:17:37,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783299328] [2022-12-14 10:17:37,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:17:37,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 10:17:37,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:17:37,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 10:17:37,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 10:17:37,862 INFO L87 Difference]: Start difference. First operand 351 states and 530 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 4 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2022-12-14 10:17:39,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:17:40,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:17:40,035 INFO L93 Difference]: Finished difference Result 361 states and 549 transitions. [2022-12-14 10:17:40,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 10:17:40,036 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 4 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) Word has length 122 [2022-12-14 10:17:40,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:17:40,038 INFO L225 Difference]: With dead ends: 361 [2022-12-14 10:17:40,038 INFO L226 Difference]: Without dead ends: 269 [2022-12-14 10:17:40,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:17:40,040 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 42 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 520 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-12-14 10:17:40,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 520 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 112 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-12-14 10:17:40,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2022-12-14 10:17:40,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 265. [2022-12-14 10:17:40,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 154 states have (on average 1.3571428571428572) internal successors, (209), 157 states have internal predecessors, (209), 93 states have call successors, (93), 15 states have call predecessors, (93), 17 states have return successors, (116), 92 states have call predecessors, (116), 93 states have call successors, (116) [2022-12-14 10:17:40,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 418 transitions. [2022-12-14 10:17:40,055 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 418 transitions. Word has length 122 [2022-12-14 10:17:40,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:17:40,055 INFO L495 AbstractCegarLoop]: Abstraction has 265 states and 418 transitions. [2022-12-14 10:17:40,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 4 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2022-12-14 10:17:40,055 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 418 transitions. [2022-12-14 10:17:40,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-12-14 10:17:40,057 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:17:40,057 INFO L195 NwaCegarLoop]: trace histogram [22, 8, 8, 8, 8, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:17:40,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 10:17:40,057 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:17:40,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:17:40,058 INFO L85 PathProgramCache]: Analyzing trace with hash -488775799, now seen corresponding path program 1 times [2022-12-14 10:17:40,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:17:40,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254696212] [2022-12-14 10:17:40,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:17:40,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:17:42,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:17:44,499 INFO L134 CoverageAnalysis]: Checked inductivity of 605 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 586 trivial. 0 not checked. [2022-12-14 10:17:44,500 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:17:44,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254696212] [2022-12-14 10:17:44,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254696212] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:17:44,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1053872008] [2022-12-14 10:17:44,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:17:44,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:17:44,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9514d5f3-54f8-4520-925a-c84ffcf077f3/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:17:44,501 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9514d5f3-54f8-4520-925a-c84ffcf077f3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:17:44,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9514d5f3-54f8-4520-925a-c84ffcf077f3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 10:17:45,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:17:45,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 3310 conjuncts, 37 conjunts are in the unsatisfiable core [2022-12-14 10:17:45,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:17:45,586 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-12-14 10:17:45,595 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-12-14 10:17:45,858 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 [2022-12-14 10:17:45,866 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 [2022-12-14 10:17:46,095 INFO L321 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2022-12-14 10:17:46,095 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 1 case distinctions, treesize of input 14 treesize of output 16 [2022-12-14 10:17:46,131 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 10:17:46,131 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 1 case distinctions, treesize of input 14 treesize of output 22 [2022-12-14 10:17:46,336 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 13 treesize of output 11 [2022-12-14 10:17:46,344 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-12-14 10:17:46,345 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 15 treesize of output 7 [2022-12-14 10:17:46,532 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 10:17:46,538 INFO L134 CoverageAnalysis]: Checked inductivity of 605 backedges. 230 proven. 55 refuted. 0 times theorem prover too weak. 320 trivial. 0 not checked. [2022-12-14 10:17:46,538 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 10:17:46,663 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 14 [2022-12-14 10:17:46,666 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 16 treesize of output 12 [2022-12-14 10:17:48,390 INFO L321 Elim1Store]: treesize reduction 76, result has 43.3 percent of original size [2022-12-14 10:17:48,390 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 5 case distinctions, treesize of input 37 treesize of output 103 [2022-12-14 10:17:48,432 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 10:17:48,433 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 2 case distinctions, treesize of input 26 treesize of output 46 [2022-12-14 10:17:48,471 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 10:17:48,471 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 2 case distinctions, treesize of input 27 treesize of output 47 [2022-12-14 10:17:48,742 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-12-14 10:17:48,766 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-12-14 10:17:50,101 INFO L321 Elim1Store]: treesize reduction 76, result has 43.3 percent of original size [2022-12-14 10:17:50,101 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 5 case distinctions, treesize of input 35 treesize of output 106 [2022-12-14 10:17:50,154 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 10:17:50,154 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 2 case distinctions, treesize of input 27 treesize of output 47 [2022-12-14 10:17:50,205 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 10:17:50,205 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 2 case distinctions, treesize of input 29 treesize of output 49 [2022-12-14 10:17:50,493 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 [2022-12-14 10:17:50,494 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-12-14 10:17:50,645 INFO L321 Elim1Store]: treesize reduction 76, result has 43.3 percent of original size [2022-12-14 10:17:50,645 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 5 case distinctions, treesize of input 159 treesize of output 231 [2022-12-14 10:17:50,668 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 10:17:50,668 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 2 case distinctions, treesize of input 144 treesize of output 165 [2022-12-14 10:17:50,692 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 10:17:50,693 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 2 case distinctions, treesize of input 138 treesize of output 159 [2022-12-14 10:17:50,843 INFO L134 CoverageAnalysis]: Checked inductivity of 605 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 586 trivial. 0 not checked. [2022-12-14 10:17:50,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1053872008] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 10:17:50,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1946261962] [2022-12-14 10:17:50,866 INFO L159 IcfgInterpreter]: Started Sifa with 85 locations of interest [2022-12-14 10:17:50,866 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 10:17:50,869 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 10:17:50,874 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 10:17:50,874 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 10:17:51,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:51,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:51,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:51,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:51,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:51,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:52,569 INFO L321 Elim1Store]: treesize reduction 1860, result has 14.5 percent of original size [2022-12-14 10:17:52,570 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 18 select indices, 18 select index equivalence classes, 78 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 95 case distinctions, treesize of input 172 treesize of output 445 [2022-12-14 10:17:52,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:52,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:52,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:52,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:52,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:52,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:52,691 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 11 select indices, 11 select index equivalence classes, 144 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 119 [2022-12-14 10:17:52,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:52,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:52,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:52,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:52,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:52,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:52,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:52,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:52,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:52,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:52,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:52,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:52,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:52,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:52,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:52,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:52,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:52,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:52,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:52,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:52,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:52,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:52,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:52,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:52,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:52,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:52,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:52,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:52,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:52,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:52,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:52,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:52,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:52,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:52,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:52,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:52,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:52,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:52,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:52,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:52,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:52,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:52,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:52,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:52,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:52,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:52,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:52,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:52,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:52,954 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 120 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 415 treesize of output 328 [2022-12-14 10:17:52,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:52,985 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 29 treesize of output 29 [2022-12-14 10:17:53,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:53,018 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 29 treesize of output 29 [2022-12-14 10:17:53,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:53,053 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 29 treesize of output 29 [2022-12-14 10:17:53,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:53,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:53,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:53,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:53,095 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 59 [2022-12-14 10:17:53,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:53,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:53,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:53,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:53,140 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 59 [2022-12-14 10:17:53,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:53,178 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 29 treesize of output 29 [2022-12-14 10:17:53,211 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 46 [2022-12-14 10:17:53,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:53,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:53,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:53,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:53,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:53,415 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 19 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 103 [2022-12-14 10:17:53,450 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 46 [2022-12-14 10:17:53,486 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 19 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 93 [2022-12-14 10:17:53,519 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 22 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 110 [2022-12-14 10:17:53,555 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 26 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 129 treesize of output 127 [2022-12-14 10:17:53,588 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 31 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 140 [2022-12-14 10:17:53,622 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 37 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 153 treesize of output 153 [2022-12-14 10:17:53,656 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 44 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 165 treesize of output 166 [2022-12-14 10:17:53,681 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 16 treesize of output 1 [2022-12-14 10:17:53,703 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 12 treesize of output 1 [2022-12-14 10:17:53,726 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 16 treesize of output 1 [2022-12-14 10:17:53,748 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 16 treesize of output 1 [2022-12-14 10:17:53,771 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 12 treesize of output 1 [2022-12-14 10:17:53,794 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 12 treesize of output 1 [2022-12-14 10:17:53,821 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 16 treesize of output 1 [2022-12-14 10:17:53,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:53,850 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 11 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-12-14 10:17:53,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:53,888 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 11 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-12-14 10:17:54,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:54,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:54,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:54,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:54,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:54,134 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 19 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 103 [2022-12-14 10:17:54,198 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 46 [2022-12-14 10:17:54,232 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 19 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 93 [2022-12-14 10:17:54,266 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 22 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 110 [2022-12-14 10:17:54,315 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 26 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 129 treesize of output 127 [2022-12-14 10:17:54,343 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 31 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 140 [2022-12-14 10:17:54,372 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 37 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 153 treesize of output 153 [2022-12-14 10:17:54,401 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 44 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 165 treesize of output 166 [2022-12-14 10:17:54,426 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 12 treesize of output 1 [2022-12-14 10:17:54,450 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 16 treesize of output 1 [2022-12-14 10:17:54,473 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 16 treesize of output 1 [2022-12-14 10:17:54,496 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 16 treesize of output 1 [2022-12-14 10:17:54,521 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 16 treesize of output 1 [2022-12-14 10:17:54,545 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 12 treesize of output 1 [2022-12-14 10:17:54,568 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 12 treesize of output 1 [2022-12-14 10:17:55,126 INFO L321 Elim1Store]: treesize reduction 93, result has 14.7 percent of original size [2022-12-14 10:17:55,127 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 3 case distinctions, treesize of input 15 treesize of output 21 [2022-12-14 10:17:55,185 INFO L321 Elim1Store]: treesize reduction 141, result has 10.2 percent of original size [2022-12-14 10:17:55,185 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 12 case distinctions, treesize of input 60 treesize of output 57 [2022-12-14 10:17:55,593 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 10:17:55,598 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 15 treesize of output 1 [2022-12-14 10:17:55,604 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 15 treesize of output 1 [2022-12-14 10:17:55,750 INFO L321 Elim1Store]: treesize reduction 212, result has 34.8 percent of original size [2022-12-14 10:17:55,750 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 3 case distinctions, treesize of input 193 treesize of output 113 [2022-12-14 10:17:55,761 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 [2022-12-14 10:17:55,880 INFO L321 Elim1Store]: treesize reduction 200, result has 36.1 percent of original size [2022-12-14 10:17:55,880 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 3 case distinctions, treesize of input 189 treesize of output 120 [2022-12-14 10:17:56,043 INFO L321 Elim1Store]: treesize reduction 212, result has 34.8 percent of original size [2022-12-14 10:17:56,043 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 3 case distinctions, treesize of input 193 treesize of output 113 [2022-12-14 10:17:56,058 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 [2022-12-14 10:17:56,542 INFO L321 Elim1Store]: treesize reduction 93, result has 14.7 percent of original size [2022-12-14 10:17:56,542 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 3 case distinctions, treesize of input 15 treesize of output 21 [2022-12-14 10:17:57,692 INFO L321 Elim1Store]: treesize reduction 93, result has 14.7 percent of original size [2022-12-14 10:17:57,693 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 3 case distinctions, treesize of input 15 treesize of output 21 [2022-12-14 10:17:57,859 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 16 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 49 [2022-12-14 10:17:57,878 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 16 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 49 [2022-12-14 10:17:57,895 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 16 [2022-12-14 10:17:57,922 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 16 [2022-12-14 10:17:57,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:57,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:57,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:57,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:57,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:57,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:57,957 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 55 [2022-12-14 10:17:57,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:57,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:57,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:57,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:57,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:57,992 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 14 select indices, 14 select index equivalence classes, 111 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 278 treesize of output 212 [2022-12-14 10:17:58,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:58,011 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2022-12-14 10:17:58,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:58,030 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2022-12-14 10:17:58,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:58,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:58,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:58,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:58,051 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 21 [2022-12-14 10:17:58,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:58,071 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-12-14 10:17:58,088 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 11 treesize of output 7 [2022-12-14 10:17:58,103 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 [2022-12-14 10:17:58,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:58,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:58,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:58,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:58,123 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 16 [2022-12-14 10:17:58,140 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 11 treesize of output 7 [2022-12-14 10:17:58,154 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 [2022-12-14 10:17:58,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:58,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:58,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:58,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:58,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:58,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:58,181 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 17 select indices, 17 select index equivalence classes, 142 disjoint index pairs (out of 136 index pairs), introduced 17 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 52 [2022-12-14 10:17:58,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:58,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:58,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:58,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:58,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:58,660 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 14 select indices, 14 select index equivalence classes, 111 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 278 treesize of output 212 [2022-12-14 10:17:58,678 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 11 treesize of output 7 [2022-12-14 10:17:58,692 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 [2022-12-14 10:17:58,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:58,710 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-12-14 10:17:58,727 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 11 treesize of output 7 [2022-12-14 10:17:58,744 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 [2022-12-14 10:17:58,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:58,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:58,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:58,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:58,765 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 21 [2022-12-14 10:17:58,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:58,785 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2022-12-14 10:17:58,802 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 11 treesize of output 7 [2022-12-14 10:17:58,818 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 [2022-12-14 10:17:58,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:58,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:58,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:58,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:58,841 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 16 [2022-12-14 10:17:58,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:58,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:58,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:58,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:58,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:58,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:58,873 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 55 [2022-12-14 10:17:58,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:58,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:58,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:58,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:58,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:58,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:17:58,922 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 17 select indices, 17 select index equivalence classes, 142 disjoint index pairs (out of 136 index pairs), introduced 17 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 52 [2022-12-14 10:17:58,942 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 16 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 49 [2022-12-14 10:17:58,962 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 16 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 49 [2022-12-14 10:17:58,978 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 16 [2022-12-14 10:17:58,996 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 16 [2022-12-14 10:17:59,279 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 27 treesize of output 1 [2022-12-14 10:17:59,292 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 27 treesize of output 1 [2022-12-14 10:17:59,304 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 17 treesize of output 13 [2022-12-14 10:17:59,854 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 24 [2022-12-14 10:18:00,024 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 24 [2022-12-14 10:18:00,247 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 29 treesize of output 1 [2022-12-14 10:18:00,263 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 18 treesize of output 14 [2022-12-14 10:18:00,278 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 29 treesize of output 1 [2022-12-14 10:19:45,222 INFO L197 IcfgInterpreter]: Interpreting procedure ##fun~$Pointer$~TO~$Pointer$ with input of size 604 for LOIs [2022-12-14 10:19:54,160 WARN L233 SmtUtils]: Spent 7.17s on a formula simplification. DAG size of input: 663 DAG size of output: 460 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-14 10:19:54,162 INFO L321 Elim1Store]: treesize reduction 1140, result has 44.4 percent of original size [2022-12-14 10:19:54,162 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 17 select indices, 17 select index equivalence classes, 59 disjoint index pairs (out of 136 index pairs), introduced 18 new quantified variables, introduced 101 case distinctions, treesize of input 1380 treesize of output 2236 [2022-12-14 10:19:54,677 INFO L217 Elim1Store]: Index analysis took 321 ms [2022-12-14 10:20:02,983 WARN L233 SmtUtils]: Spent 8.30s on a formula simplification. DAG size of input: 841 DAG size of output: 356 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-14 10:20:02,985 INFO L321 Elim1Store]: treesize reduction 1868, result has 30.5 percent of original size [2022-12-14 10:20:02,985 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 22 select indices, 22 select index equivalence classes, 70 disjoint index pairs (out of 231 index pairs), introduced 23 new quantified variables, introduced 184 case distinctions, treesize of input 1336 treesize of output 2091 [2022-12-14 10:24:27,594 WARN L233 SmtUtils]: Spent 21.45s on a formula simplification. DAG size of input: 1018 DAG size of output: 1018 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-12-14 10:24:43,213 WARN L233 SmtUtils]: Spent 12.57s on a formula simplification. DAG size of input: 998 DAG size of output: 600 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-12-14 10:26:30,312 WARN L233 SmtUtils]: Spent 12.54s on a formula simplification. DAG size of input: 998 DAG size of output: 600 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-12-14 10:28:22,134 WARN L233 SmtUtils]: Spent 13.42s on a formula simplification. DAG size of input: 998 DAG size of output: 600 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-12-14 10:30:14,948 WARN L233 SmtUtils]: Spent 12.78s on a formula simplification. DAG size of input: 998 DAG size of output: 600 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)