./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/heap-manipulation/merge_sort-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) 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_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/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_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/heap-manipulation/merge_sort-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e47f94c757882803b8e19e21a897c3f5ab1653c3391e3b246153a1c416bdab7c --- 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 09:41:04,118 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 09:41:04,123 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 09:41:04,141 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 09:41:04,142 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 09:41:04,143 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 09:41:04,144 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 09:41:04,145 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 09:41:04,156 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 09:41:04,157 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 09:41:04,158 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 09:41:04,159 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 09:41:04,160 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 09:41:04,161 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 09:41:04,162 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 09:41:04,163 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 09:41:04,163 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 09:41:04,164 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 09:41:04,166 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 09:41:04,167 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 09:41:04,169 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 09:41:04,170 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 09:41:04,171 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 09:41:04,172 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 09:41:04,175 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 09:41:04,175 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 09:41:04,175 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 09:41:04,176 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 09:41:04,177 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 09:41:04,178 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 09:41:04,178 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 09:41:04,178 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 09:41:04,179 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 09:41:04,180 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 09:41:04,180 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 09:41:04,181 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 09:41:04,181 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 09:41:04,181 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 09:41:04,182 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 09:41:04,182 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 09:41:04,183 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 09:41:04,184 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-12-14 09:41:04,203 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 09:41:04,203 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 09:41:04,204 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 09:41:04,204 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 09:41:04,204 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 09:41:04,204 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 09:41:04,205 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 09:41:04,205 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 09:41:04,205 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 09:41:04,205 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 09:41:04,205 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 09:41:04,205 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 09:41:04,206 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 09:41:04,206 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 09:41:04,206 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 09:41:04,206 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 09:41:04,206 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 09:41:04,206 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 09:41:04,207 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 09:41:04,207 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 09:41:04,207 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 09:41:04,208 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 09:41:04,208 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 09:41:04,208 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 09:41:04,208 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 09:41:04,208 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 09:41:04,208 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 09:41:04,208 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 09:41:04,209 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-14 09:41:04,209 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 09:41:04,209 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 09:41:04,209 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 09:41:04,209 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 09:41:04,209 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 09:41:04,210 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 09:41:04,210 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:41:04,210 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 09:41:04,210 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 09:41:04,210 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 09:41:04,211 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 09:41:04,211 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 09:41:04,211 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 09:41:04,211 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_ecc346e5-b553-4744-9b78-503613d5f2df/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e47f94c757882803b8e19e21a897c3f5ab1653c3391e3b246153a1c416bdab7c [2022-12-14 09:41:04,387 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 09:41:04,419 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 09:41:04,422 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 09:41:04,423 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 09:41:04,423 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 09:41:04,424 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/heap-manipulation/merge_sort-2.i [2022-12-14 09:41:07,057 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 09:41:07,258 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 09:41:07,259 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/sv-benchmarks/c/heap-manipulation/merge_sort-2.i [2022-12-14 09:41:07,271 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/data/29a07b54f/fa7243ccde034d9080812cacf042944e/FLAGe253ce436 [2022-12-14 09:41:07,284 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/data/29a07b54f/fa7243ccde034d9080812cacf042944e [2022-12-14 09:41:07,287 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 09:41:07,288 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 09:41:07,290 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 09:41:07,290 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 09:41:07,293 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 09:41:07,294 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:41:07" (1/1) ... [2022-12-14 09:41:07,295 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c1c3ecf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:41:07, skipping insertion in model container [2022-12-14 09:41:07,295 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:41:07" (1/1) ... [2022-12-14 09:41:07,300 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 09:41:07,323 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 09:41:07,546 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_ecc346e5-b553-4744-9b78-503613d5f2df/sv-benchmarks/c/heap-manipulation/merge_sort-2.i[22632,22645] [2022-12-14 09:41:07,575 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:41:07,585 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 09:41:07,611 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_ecc346e5-b553-4744-9b78-503613d5f2df/sv-benchmarks/c/heap-manipulation/merge_sort-2.i[22632,22645] [2022-12-14 09:41:07,627 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:41:07,651 INFO L208 MainTranslator]: Completed translation [2022-12-14 09:41:07,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:41:07 WrapperNode [2022-12-14 09:41:07,652 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 09:41:07,653 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 09:41:07,653 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 09:41:07,653 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 09:41:07,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:41:07" (1/1) ... [2022-12-14 09:41:07,673 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:41:07" (1/1) ... [2022-12-14 09:41:07,698 INFO L138 Inliner]: procedures = 125, calls = 83, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 294 [2022-12-14 09:41:07,699 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 09:41:07,699 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 09:41:07,700 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 09:41:07,700 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 09:41:07,709 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:41:07" (1/1) ... [2022-12-14 09:41:07,709 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:41:07" (1/1) ... [2022-12-14 09:41:07,714 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:41:07" (1/1) ... [2022-12-14 09:41:07,714 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:41:07" (1/1) ... [2022-12-14 09:41:07,725 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:41:07" (1/1) ... [2022-12-14 09:41:07,732 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:41:07" (1/1) ... [2022-12-14 09:41:07,734 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:41:07" (1/1) ... [2022-12-14 09:41:07,736 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:41:07" (1/1) ... [2022-12-14 09:41:07,739 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 09:41:07,740 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 09:41:07,740 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 09:41:07,740 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 09:41:07,741 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:41:07" (1/1) ... [2022-12-14 09:41:07,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:41:07,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:41:07,767 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 09:41:07,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 09:41:07,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 09:41:07,800 INFO L130 BoogieDeclarations]: Found specification of procedure merge_single_node [2022-12-14 09:41:07,801 INFO L138 BoogieDeclarations]: Found implementation of procedure merge_single_node [2022-12-14 09:41:07,801 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2022-12-14 09:41:07,801 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2022-12-14 09:41:07,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 09:41:07,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 09:41:07,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 09:41:07,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 09:41:07,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 09:41:07,801 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 09:41:07,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 09:41:07,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 09:41:07,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 09:41:07,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 09:41:07,891 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 09:41:07,893 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 09:41:08,327 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 09:41:08,384 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 09:41:08,384 INFO L300 CfgBuilder]: Removed 33 assume(true) statements. [2022-12-14 09:41:08,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:41:08 BoogieIcfgContainer [2022-12-14 09:41:08,387 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 09:41:08,389 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 09:41:08,389 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 09:41:08,392 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 09:41:08,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 09:41:07" (1/3) ... [2022-12-14 09:41:08,392 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14a1907f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:41:08, skipping insertion in model container [2022-12-14 09:41:08,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:41:07" (2/3) ... [2022-12-14 09:41:08,393 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14a1907f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:41:08, skipping insertion in model container [2022-12-14 09:41:08,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:41:08" (3/3) ... [2022-12-14 09:41:08,394 INFO L112 eAbstractionObserver]: Analyzing ICFG merge_sort-2.i [2022-12-14 09:41:08,408 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 09:41:08,408 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 105 error locations. [2022-12-14 09:41:08,443 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 09:41:08,447 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=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@ed6193a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 09:41:08,448 INFO L358 AbstractCegarLoop]: Starting to check reachability of 105 error locations. [2022-12-14 09:41:08,451 INFO L276 IsEmpty]: Start isEmpty. Operand has 230 states, 107 states have (on average 2.514018691588785) internal successors, (269), 227 states have internal predecessors, (269), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 14 states have call predecessors, (15), 15 states have call successors, (15) [2022-12-14 09:41:08,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 09:41:08,455 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:41:08,455 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 09:41:08,456 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-12-14 09:41:08,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:41:08,460 INFO L85 PathProgramCache]: Analyzing trace with hash 18345167, now seen corresponding path program 1 times [2022-12-14 09:41:08,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:41:08,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378149190] [2022-12-14 09:41:08,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:41:08,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:41:08,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:41:08,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:41:08,620 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:41:08,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378149190] [2022-12-14 09:41:08,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378149190] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:41:08,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:41:08,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 09:41:08,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126606856] [2022-12-14 09:41:08,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:41:08,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:41:08,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:41:08,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:41:08,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:41:08,655 INFO L87 Difference]: Start difference. First operand has 230 states, 107 states have (on average 2.514018691588785) internal successors, (269), 227 states have internal predecessors, (269), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 14 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:41:08,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:41:08,968 INFO L93 Difference]: Finished difference Result 396 states and 447 transitions. [2022-12-14 09:41:08,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:41:08,970 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-12-14 09:41:08,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:41:08,981 INFO L225 Difference]: With dead ends: 396 [2022-12-14 09:41:08,981 INFO L226 Difference]: Without dead ends: 394 [2022-12-14 09:41:08,982 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:41:08,984 INFO L413 NwaCegarLoop]: 337 mSDtfsCounter, 181 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 09:41:08,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 479 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 09:41:08,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2022-12-14 09:41:09,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 226. [2022-12-14 09:41:09,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 107 states have (on average 2.1869158878504673) internal successors, (234), 223 states have internal predecessors, (234), 15 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:41:09,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 251 transitions. [2022-12-14 09:41:09,024 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 251 transitions. Word has length 4 [2022-12-14 09:41:09,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:41:09,024 INFO L495 AbstractCegarLoop]: Abstraction has 226 states and 251 transitions. [2022-12-14 09:41:09,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:41:09,024 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 251 transitions. [2022-12-14 09:41:09,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 09:41:09,024 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:41:09,024 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 09:41:09,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 09:41:09,025 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-12-14 09:41:09,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:41:09,025 INFO L85 PathProgramCache]: Analyzing trace with hash 18345168, now seen corresponding path program 1 times [2022-12-14 09:41:09,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:41:09,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015228807] [2022-12-14 09:41:09,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:41:09,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:41:09,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:41:09,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:41:09,106 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:41:09,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015228807] [2022-12-14 09:41:09,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015228807] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:41:09,107 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:41:09,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 09:41:09,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627073798] [2022-12-14 09:41:09,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:41:09,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:41:09,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:41:09,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:41:09,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:41:09,109 INFO L87 Difference]: Start difference. First operand 226 states and 251 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:41:09,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:41:09,303 INFO L93 Difference]: Finished difference Result 360 states and 405 transitions. [2022-12-14 09:41:09,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:41:09,304 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-12-14 09:41:09,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:41:09,306 INFO L225 Difference]: With dead ends: 360 [2022-12-14 09:41:09,306 INFO L226 Difference]: Without dead ends: 360 [2022-12-14 09:41:09,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:41:09,308 INFO L413 NwaCegarLoop]: 322 mSDtfsCounter, 148 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 09:41:09,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 471 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 09:41:09,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2022-12-14 09:41:09,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 224. [2022-12-14 09:41:09,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 107 states have (on average 2.1682242990654204) internal successors, (232), 221 states have internal predecessors, (232), 15 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:41:09,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 249 transitions. [2022-12-14 09:41:09,323 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 249 transitions. Word has length 4 [2022-12-14 09:41:09,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:41:09,323 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 249 transitions. [2022-12-14 09:41:09,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:41:09,323 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 249 transitions. [2022-12-14 09:41:09,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 09:41:09,324 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:41:09,324 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 09:41:09,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 09:41:09,324 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr89ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-12-14 09:41:09,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:41:09,324 INFO L85 PathProgramCache]: Analyzing trace with hash 568154688, now seen corresponding path program 1 times [2022-12-14 09:41:09,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:41:09,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571581394] [2022-12-14 09:41:09,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:41:09,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:41:09,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:41:09,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:41:09,345 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:41:09,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571581394] [2022-12-14 09:41:09,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571581394] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:41:09,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:41:09,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 09:41:09,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474140972] [2022-12-14 09:41:09,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:41:09,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:41:09,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:41:09,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:41:09,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:41:09,347 INFO L87 Difference]: Start difference. First operand 224 states and 249 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:41:09,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:41:09,491 INFO L93 Difference]: Finished difference Result 349 states and 393 transitions. [2022-12-14 09:41:09,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:41:09,492 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-12-14 09:41:09,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:41:09,493 INFO L225 Difference]: With dead ends: 349 [2022-12-14 09:41:09,493 INFO L226 Difference]: Without dead ends: 348 [2022-12-14 09:41:09,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:41:09,494 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 125 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:41:09,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 311 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:41:09,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2022-12-14 09:41:09,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 227. [2022-12-14 09:41:09,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 110 states have (on average 2.1454545454545455) internal successors, (236), 224 states have internal predecessors, (236), 15 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:41:09,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 253 transitions. [2022-12-14 09:41:09,502 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 253 transitions. Word has length 5 [2022-12-14 09:41:09,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:41:09,502 INFO L495 AbstractCegarLoop]: Abstraction has 227 states and 253 transitions. [2022-12-14 09:41:09,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:41:09,502 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 253 transitions. [2022-12-14 09:41:09,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 09:41:09,502 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:41:09,502 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 09:41:09,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 09:41:09,503 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-12-14 09:41:09,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:41:09,503 INFO L85 PathProgramCache]: Analyzing trace with hash 450363646, now seen corresponding path program 1 times [2022-12-14 09:41:09,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:41:09,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803222082] [2022-12-14 09:41:09,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:41:09,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:41:09,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:41:09,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:41:09,578 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:41:09,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803222082] [2022-12-14 09:41:09,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803222082] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:41:09,578 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:41:09,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 09:41:09,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907581492] [2022-12-14 09:41:09,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:41:09,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:41:09,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:41:09,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:41:09,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:41:09,580 INFO L87 Difference]: Start difference. First operand 227 states and 253 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:41:09,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:41:09,747 INFO L93 Difference]: Finished difference Result 360 states and 404 transitions. [2022-12-14 09:41:09,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:41:09,747 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-12-14 09:41:09,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:41:09,748 INFO L225 Difference]: With dead ends: 360 [2022-12-14 09:41:09,748 INFO L226 Difference]: Without dead ends: 360 [2022-12-14 09:41:09,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:41:09,750 INFO L413 NwaCegarLoop]: 318 mSDtfsCounter, 146 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:41:09,750 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 466 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:41:09,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2022-12-14 09:41:09,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 225. [2022-12-14 09:41:09,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 110 states have (on average 2.1272727272727274) internal successors, (234), 222 states have internal predecessors, (234), 15 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:41:09,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 251 transitions. [2022-12-14 09:41:09,761 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 251 transitions. Word has length 6 [2022-12-14 09:41:09,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:41:09,761 INFO L495 AbstractCegarLoop]: Abstraction has 225 states and 251 transitions. [2022-12-14 09:41:09,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:41:09,761 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 251 transitions. [2022-12-14 09:41:09,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 09:41:09,762 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:41:09,762 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 09:41:09,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 09:41:09,762 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-12-14 09:41:09,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:41:09,763 INFO L85 PathProgramCache]: Analyzing trace with hash 450363645, now seen corresponding path program 1 times [2022-12-14 09:41:09,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:41:09,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758843957] [2022-12-14 09:41:09,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:41:09,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:41:09,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:41:09,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:41:09,815 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:41:09,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758843957] [2022-12-14 09:41:09,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758843957] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:41:09,815 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:41:09,815 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 09:41:09,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849887750] [2022-12-14 09:41:09,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:41:09,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:41:09,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:41:09,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:41:09,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:41:09,817 INFO L87 Difference]: Start difference. First operand 225 states and 251 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:41:09,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:41:09,979 INFO L93 Difference]: Finished difference Result 390 states and 440 transitions. [2022-12-14 09:41:09,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:41:09,979 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-12-14 09:41:09,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:41:09,981 INFO L225 Difference]: With dead ends: 390 [2022-12-14 09:41:09,981 INFO L226 Difference]: Without dead ends: 390 [2022-12-14 09:41:09,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:41:09,982 INFO L413 NwaCegarLoop]: 333 mSDtfsCounter, 174 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:41:09,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 474 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:41:09,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2022-12-14 09:41:09,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 223. [2022-12-14 09:41:09,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 110 states have (on average 2.109090909090909) internal successors, (232), 220 states have internal predecessors, (232), 15 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:41:09,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 249 transitions. [2022-12-14 09:41:09,991 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 249 transitions. Word has length 6 [2022-12-14 09:41:09,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:41:09,992 INFO L495 AbstractCegarLoop]: Abstraction has 223 states and 249 transitions. [2022-12-14 09:41:09,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:41:09,992 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 249 transitions. [2022-12-14 09:41:09,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 09:41:09,992 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:41:09,992 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:41:09,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 09:41:09,993 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-12-14 09:41:09,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:41:09,993 INFO L85 PathProgramCache]: Analyzing trace with hash 535440203, now seen corresponding path program 1 times [2022-12-14 09:41:09,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:41:09,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132604731] [2022-12-14 09:41:09,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:41:09,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:41:09,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:41:10,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:41:10,015 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:41:10,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132604731] [2022-12-14 09:41:10,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132604731] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:41:10,015 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:41:10,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 09:41:10,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111262602] [2022-12-14 09:41:10,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:41:10,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:41:10,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:41:10,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:41:10,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:41:10,017 INFO L87 Difference]: Start difference. First operand 223 states and 249 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:41:10,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:41:10,074 INFO L93 Difference]: Finished difference Result 229 states and 253 transitions. [2022-12-14 09:41:10,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:41:10,074 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-12-14 09:41:10,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:41:10,075 INFO L225 Difference]: With dead ends: 229 [2022-12-14 09:41:10,075 INFO L226 Difference]: Without dead ends: 228 [2022-12-14 09:41:10,075 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:41:10,076 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 5 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:41:10,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 415 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:41:10,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2022-12-14 09:41:10,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 222. [2022-12-14 09:41:10,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 109 states have (on average 2.110091743119266) internal successors, (230), 219 states have internal predecessors, (230), 15 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:41:10,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 247 transitions. [2022-12-14 09:41:10,081 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 247 transitions. Word has length 7 [2022-12-14 09:41:10,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:41:10,081 INFO L495 AbstractCegarLoop]: Abstraction has 222 states and 247 transitions. [2022-12-14 09:41:10,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:41:10,081 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 247 transitions. [2022-12-14 09:41:10,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 09:41:10,081 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:41:10,082 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:41:10,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 09:41:10,082 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr89ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-12-14 09:41:10,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:41:10,082 INFO L85 PathProgramCache]: Analyzing trace with hash -1154009547, now seen corresponding path program 1 times [2022-12-14 09:41:10,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:41:10,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425166717] [2022-12-14 09:41:10,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:41:10,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:41:10,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:41:10,125 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:41:10,125 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:41:10,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425166717] [2022-12-14 09:41:10,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425166717] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:41:10,125 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:41:10,125 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 09:41:10,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325762941] [2022-12-14 09:41:10,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:41:10,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 09:41:10,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:41:10,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 09:41:10,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 09:41:10,126 INFO L87 Difference]: Start difference. First operand 222 states and 247 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:41:10,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:41:10,225 INFO L93 Difference]: Finished difference Result 353 states and 393 transitions. [2022-12-14 09:41:10,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 09:41:10,225 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-12-14 09:41:10,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:41:10,227 INFO L225 Difference]: With dead ends: 353 [2022-12-14 09:41:10,227 INFO L226 Difference]: Without dead ends: 353 [2022-12-14 09:41:10,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 09:41:10,228 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 535 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 537 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:41:10,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [537 Valid, 380 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:41:10,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2022-12-14 09:41:10,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 222. [2022-12-14 09:41:10,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 109 states have (on average 2.1009174311926606) internal successors, (229), 219 states have internal predecessors, (229), 15 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:41:10,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 246 transitions. [2022-12-14 09:41:10,236 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 246 transitions. Word has length 11 [2022-12-14 09:41:10,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:41:10,236 INFO L495 AbstractCegarLoop]: Abstraction has 222 states and 246 transitions. [2022-12-14 09:41:10,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:41:10,236 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 246 transitions. [2022-12-14 09:41:10,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 09:41:10,237 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:41:10,237 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:41:10,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 09:41:10,237 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-12-14 09:41:10,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:41:10,238 INFO L85 PathProgramCache]: Analyzing trace with hash -901980672, now seen corresponding path program 1 times [2022-12-14 09:41:10,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:41:10,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39955374] [2022-12-14 09:41:10,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:41:10,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:41:10,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:41:10,319 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:41:10,319 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:41:10,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39955374] [2022-12-14 09:41:10,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39955374] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:41:10,319 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:41:10,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:41:10,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619985899] [2022-12-14 09:41:10,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:41:10,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:41:10,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:41:10,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:41:10,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:41:10,321 INFO L87 Difference]: Start difference. First operand 222 states and 246 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:41:10,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:41:10,530 INFO L93 Difference]: Finished difference Result 627 states and 702 transitions. [2022-12-14 09:41:10,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 09:41:10,531 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-12-14 09:41:10,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:41:10,535 INFO L225 Difference]: With dead ends: 627 [2022-12-14 09:41:10,535 INFO L226 Difference]: Without dead ends: 627 [2022-12-14 09:41:10,536 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 09:41:10,536 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 1320 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1322 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 09:41:10,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1322 Valid, 528 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 09:41:10,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2022-12-14 09:41:10,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 247. [2022-12-14 09:41:10,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 135 states have (on average 2.066666666666667) internal successors, (279), 244 states have internal predecessors, (279), 14 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:41:10,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 295 transitions. [2022-12-14 09:41:10,549 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 295 transitions. Word has length 13 [2022-12-14 09:41:10,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:41:10,549 INFO L495 AbstractCegarLoop]: Abstraction has 247 states and 295 transitions. [2022-12-14 09:41:10,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:41:10,549 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 295 transitions. [2022-12-14 09:41:10,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 09:41:10,550 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:41:10,550 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:41:10,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 09:41:10,550 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-12-14 09:41:10,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:41:10,551 INFO L85 PathProgramCache]: Analyzing trace with hash -901991921, now seen corresponding path program 1 times [2022-12-14 09:41:10,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:41:10,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155466694] [2022-12-14 09:41:10,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:41:10,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:41:10,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:41:10,625 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:41:10,625 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:41:10,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155466694] [2022-12-14 09:41:10,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155466694] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:41:10,625 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:41:10,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 09:41:10,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853995881] [2022-12-14 09:41:10,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:41:10,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:41:10,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:41:10,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:41:10,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:41:10,627 INFO L87 Difference]: Start difference. First operand 247 states and 295 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:41:10,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:41:10,966 INFO L93 Difference]: Finished difference Result 403 states and 470 transitions. [2022-12-14 09:41:10,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 09:41:10,967 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-12-14 09:41:10,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:41:10,970 INFO L225 Difference]: With dead ends: 403 [2022-12-14 09:41:10,970 INFO L226 Difference]: Without dead ends: 403 [2022-12-14 09:41:10,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 09:41:10,971 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 578 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 580 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 09:41:10,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [580 Valid, 413 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 09:41:10,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2022-12-14 09:41:10,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 238. [2022-12-14 09:41:10,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 135 states have (on average 1.9777777777777779) internal successors, (267), 235 states have internal predecessors, (267), 14 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:41:10,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 283 transitions. [2022-12-14 09:41:10,975 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 283 transitions. Word has length 13 [2022-12-14 09:41:10,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:41:10,976 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 283 transitions. [2022-12-14 09:41:10,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:41:10,976 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 283 transitions. [2022-12-14 09:41:10,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 09:41:10,976 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:41:10,976 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:41:10,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 09:41:10,976 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-12-14 09:41:10,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:41:10,977 INFO L85 PathProgramCache]: Analyzing trace with hash -901991920, now seen corresponding path program 1 times [2022-12-14 09:41:10,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:41:10,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983089753] [2022-12-14 09:41:10,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:41:10,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:41:10,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:41:11,075 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:41:11,076 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:41:11,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983089753] [2022-12-14 09:41:11,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983089753] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:41:11,076 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:41:11,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 09:41:11,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007796057] [2022-12-14 09:41:11,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:41:11,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:41:11,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:41:11,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:41:11,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:41:11,077 INFO L87 Difference]: Start difference. First operand 238 states and 283 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:41:11,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:41:11,451 INFO L93 Difference]: Finished difference Result 534 states and 596 transitions. [2022-12-14 09:41:11,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:41:11,451 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-12-14 09:41:11,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:41:11,455 INFO L225 Difference]: With dead ends: 534 [2022-12-14 09:41:11,455 INFO L226 Difference]: Without dead ends: 534 [2022-12-14 09:41:11,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 09:41:11,456 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 806 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 806 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 09:41:11,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [806 Valid, 441 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 09:41:11,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2022-12-14 09:41:11,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 258. [2022-12-14 09:41:11,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 155 states have (on average 1.8774193548387097) internal successors, (291), 255 states have internal predecessors, (291), 14 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:41:11,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 307 transitions. [2022-12-14 09:41:11,461 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 307 transitions. Word has length 13 [2022-12-14 09:41:11,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:41:11,461 INFO L495 AbstractCegarLoop]: Abstraction has 258 states and 307 transitions. [2022-12-14 09:41:11,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:41:11,461 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 307 transitions. [2022-12-14 09:41:11,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 09:41:11,461 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:41:11,461 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:41:11,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 09:41:11,462 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-12-14 09:41:11,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:41:11,462 INFO L85 PathProgramCache]: Analyzing trace with hash -256693872, now seen corresponding path program 1 times [2022-12-14 09:41:11,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:41:11,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799334184] [2022-12-14 09:41:11,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:41:11,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:41:11,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:41:11,529 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 09:41:11,529 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:41:11,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799334184] [2022-12-14 09:41:11,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799334184] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:41:11,530 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:41:11,530 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:41:11,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253723066] [2022-12-14 09:41:11,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:41:11,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:41:11,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:41:11,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:41:11,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:41:11,531 INFO L87 Difference]: Start difference. First operand 258 states and 307 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:41:11,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:41:11,711 INFO L93 Difference]: Finished difference Result 332 states and 387 transitions. [2022-12-14 09:41:11,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 09:41:11,712 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-12-14 09:41:11,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:41:11,714 INFO L225 Difference]: With dead ends: 332 [2022-12-14 09:41:11,714 INFO L226 Difference]: Without dead ends: 332 [2022-12-14 09:41:11,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-14 09:41:11,715 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 96 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 662 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 09:41:11,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 662 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 09:41:11,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2022-12-14 09:41:11,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 257. [2022-12-14 09:41:11,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 155 states have (on average 1.864516129032258) internal successors, (289), 254 states have internal predecessors, (289), 13 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:41:11,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 304 transitions. [2022-12-14 09:41:11,719 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 304 transitions. Word has length 20 [2022-12-14 09:41:11,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:41:11,719 INFO L495 AbstractCegarLoop]: Abstraction has 257 states and 304 transitions. [2022-12-14 09:41:11,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:41:11,720 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 304 transitions. [2022-12-14 09:41:11,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 09:41:11,720 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:41:11,720 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:41:11,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 09:41:11,720 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-12-14 09:41:11,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:41:11,720 INFO L85 PathProgramCache]: Analyzing trace with hash -937110950, now seen corresponding path program 1 times [2022-12-14 09:41:11,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:41:11,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862971655] [2022-12-14 09:41:11,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:41:11,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:41:11,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:41:11,786 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 09:41:11,786 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:41:11,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862971655] [2022-12-14 09:41:11,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862971655] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:41:11,787 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:41:11,787 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:41:11,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135711707] [2022-12-14 09:41:11,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:41:11,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:41:11,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:41:11,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:41:11,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:41:11,788 INFO L87 Difference]: Start difference. First operand 257 states and 304 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:41:11,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:41:11,937 INFO L93 Difference]: Finished difference Result 256 states and 301 transitions. [2022-12-14 09:41:11,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 09:41:11,938 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-12-14 09:41:11,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:41:11,938 INFO L225 Difference]: With dead ends: 256 [2022-12-14 09:41:11,939 INFO L226 Difference]: Without dead ends: 256 [2022-12-14 09:41:11,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-14 09:41:11,939 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 19 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:41:11,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 673 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:41:11,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2022-12-14 09:41:11,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 256. [2022-12-14 09:41:11,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 155 states have (on average 1.8516129032258064) internal successors, (287), 253 states have internal predecessors, (287), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:41:11,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 301 transitions. [2022-12-14 09:41:11,943 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 301 transitions. Word has length 20 [2022-12-14 09:41:11,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:41:11,943 INFO L495 AbstractCegarLoop]: Abstraction has 256 states and 301 transitions. [2022-12-14 09:41:11,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:41:11,943 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 301 transitions. [2022-12-14 09:41:11,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-12-14 09:41:11,943 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:41:11,943 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:41:11,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 09:41:11,944 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-12-14 09:41:11,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:41:11,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1946598122, now seen corresponding path program 1 times [2022-12-14 09:41:11,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:41:11,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728723565] [2022-12-14 09:41:11,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:41:11,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:41:11,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:41:12,063 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:41:12,064 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:41:12,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728723565] [2022-12-14 09:41:12,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728723565] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:41:12,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:41:12,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 09:41:12,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517107212] [2022-12-14 09:41:12,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:41:12,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 09:41:12,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:41:12,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 09:41:12,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-14 09:41:12,065 INFO L87 Difference]: Start difference. First operand 256 states and 301 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:41:12,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:41:12,347 INFO L93 Difference]: Finished difference Result 538 states and 595 transitions. [2022-12-14 09:41:12,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 09:41:12,347 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-12-14 09:41:12,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:41:12,349 INFO L225 Difference]: With dead ends: 538 [2022-12-14 09:41:12,349 INFO L226 Difference]: Without dead ends: 538 [2022-12-14 09:41:12,350 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-12-14 09:41:12,350 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 1177 mSDsluCounter, 652 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1179 SdHoareTripleChecker+Valid, 825 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 09:41:12,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1179 Valid, 825 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 09:41:12,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2022-12-14 09:41:12,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 256. [2022-12-14 09:41:12,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 155 states have (on average 1.8451612903225807) internal successors, (286), 253 states have internal predecessors, (286), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:41:12,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 300 transitions. [2022-12-14 09:41:12,358 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 300 transitions. Word has length 23 [2022-12-14 09:41:12,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:41:12,358 INFO L495 AbstractCegarLoop]: Abstraction has 256 states and 300 transitions. [2022-12-14 09:41:12,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:41:12,358 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 300 transitions. [2022-12-14 09:41:12,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-12-14 09:41:12,359 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:41:12,359 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:41:12,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-14 09:41:12,359 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-12-14 09:41:12,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:41:12,360 INFO L85 PathProgramCache]: Analyzing trace with hash -479719491, now seen corresponding path program 1 times [2022-12-14 09:41:12,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:41:12,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385783948] [2022-12-14 09:41:12,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:41:12,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:41:12,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:41:12,506 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:41:12,506 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:41:12,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385783948] [2022-12-14 09:41:12,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385783948] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:41:12,507 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:41:12,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 09:41:12,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651337338] [2022-12-14 09:41:12,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:41:12,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 09:41:12,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:41:12,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 09:41:12,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-14 09:41:12,508 INFO L87 Difference]: Start difference. First operand 256 states and 300 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:41:12,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:41:12,791 INFO L93 Difference]: Finished difference Result 537 states and 593 transitions. [2022-12-14 09:41:12,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 09:41:12,791 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-12-14 09:41:12,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:41:12,793 INFO L225 Difference]: With dead ends: 537 [2022-12-14 09:41:12,793 INFO L226 Difference]: Without dead ends: 537 [2022-12-14 09:41:12,793 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-12-14 09:41:12,793 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 1173 mSDsluCounter, 652 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1175 SdHoareTripleChecker+Valid, 825 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 09:41:12,794 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1175 Valid, 825 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 09:41:12,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2022-12-14 09:41:12,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 256. [2022-12-14 09:41:12,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 155 states have (on average 1.8387096774193548) internal successors, (285), 253 states have internal predecessors, (285), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:41:12,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 299 transitions. [2022-12-14 09:41:12,801 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 299 transitions. Word has length 23 [2022-12-14 09:41:12,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:41:12,801 INFO L495 AbstractCegarLoop]: Abstraction has 256 states and 299 transitions. [2022-12-14 09:41:12,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:41:12,801 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 299 transitions. [2022-12-14 09:41:12,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-14 09:41:12,802 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:41:12,802 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:41:12,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-14 09:41:12,802 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr26REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-12-14 09:41:12,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:41:12,803 INFO L85 PathProgramCache]: Analyzing trace with hash 214784498, now seen corresponding path program 1 times [2022-12-14 09:41:12,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:41:12,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800540567] [2022-12-14 09:41:12,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:41:12,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:41:12,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:41:12,983 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:41:12,984 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:41:12,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800540567] [2022-12-14 09:41:12,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800540567] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:41:12,984 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:41:12,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-14 09:41:12,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489920300] [2022-12-14 09:41:12,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:41:12,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 09:41:12,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:41:12,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 09:41:12,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-12-14 09:41:12,985 INFO L87 Difference]: Start difference. First operand 256 states and 299 transitions. Second operand has 9 states, 8 states have (on average 3.0) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:41:13,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:41:13,497 INFO L93 Difference]: Finished difference Result 602 states and 673 transitions. [2022-12-14 09:41:13,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-14 09:41:13,498 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.0) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-12-14 09:41:13,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:41:13,500 INFO L225 Difference]: With dead ends: 602 [2022-12-14 09:41:13,500 INFO L226 Difference]: Without dead ends: 602 [2022-12-14 09:41:13,500 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=82, Invalid=158, Unknown=0, NotChecked=0, Total=240 [2022-12-14 09:41:13,501 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 1467 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 652 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1469 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 09:41:13,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1469 Valid, 642 Invalid, 687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 652 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 09:41:13,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2022-12-14 09:41:13,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 257. [2022-12-14 09:41:13,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 156 states have (on average 1.8397435897435896) internal successors, (287), 254 states have internal predecessors, (287), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:41:13,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 301 transitions. [2022-12-14 09:41:13,506 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 301 transitions. Word has length 24 [2022-12-14 09:41:13,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:41:13,506 INFO L495 AbstractCegarLoop]: Abstraction has 257 states and 301 transitions. [2022-12-14 09:41:13,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.0) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:41:13,506 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 301 transitions. [2022-12-14 09:41:13,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-14 09:41:13,507 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:41:13,507 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:41:13,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-14 09:41:13,507 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr27REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-12-14 09:41:13,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:41:13,508 INFO L85 PathProgramCache]: Analyzing trace with hash 214784499, now seen corresponding path program 1 times [2022-12-14 09:41:13,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:41:13,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705528589] [2022-12-14 09:41:13,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:41:13,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:41:13,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:41:13,730 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:41:13,730 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:41:13,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705528589] [2022-12-14 09:41:13,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705528589] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:41:13,731 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:41:13,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 09:41:13,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214735106] [2022-12-14 09:41:13,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:41:13,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 09:41:13,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:41:13,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 09:41:13,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-14 09:41:13,732 INFO L87 Difference]: Start difference. First operand 257 states and 301 transitions. Second operand has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:41:14,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:41:14,118 INFO L93 Difference]: Finished difference Result 595 states and 659 transitions. [2022-12-14 09:41:14,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 09:41:14,119 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-12-14 09:41:14,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:41:14,120 INFO L225 Difference]: With dead ends: 595 [2022-12-14 09:41:14,120 INFO L226 Difference]: Without dead ends: 595 [2022-12-14 09:41:14,121 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-12-14 09:41:14,121 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 1071 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 608 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1071 SdHoareTripleChecker+Valid, 684 SdHoareTripleChecker+Invalid, 611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 09:41:14,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1071 Valid, 684 Invalid, 611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 608 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 09:41:14,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2022-12-14 09:41:14,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 257. [2022-12-14 09:41:14,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 156 states have (on average 1.8333333333333333) internal successors, (286), 254 states have internal predecessors, (286), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:41:14,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 300 transitions. [2022-12-14 09:41:14,126 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 300 transitions. Word has length 24 [2022-12-14 09:41:14,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:41:14,126 INFO L495 AbstractCegarLoop]: Abstraction has 257 states and 300 transitions. [2022-12-14 09:41:14,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:41:14,126 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 300 transitions. [2022-12-14 09:41:14,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-14 09:41:14,126 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:41:14,126 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:41:14,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-14 09:41:14,126 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-12-14 09:41:14,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:41:14,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1986692204, now seen corresponding path program 1 times [2022-12-14 09:41:14,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:41:14,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200754402] [2022-12-14 09:41:14,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:41:14,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:41:14,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:41:14,278 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:41:14,278 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:41:14,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200754402] [2022-12-14 09:41:14,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200754402] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:41:14,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:41:14,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-14 09:41:14,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396160669] [2022-12-14 09:41:14,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:41:14,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 09:41:14,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:41:14,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 09:41:14,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-12-14 09:41:14,280 INFO L87 Difference]: Start difference. First operand 257 states and 300 transitions. Second operand has 9 states, 8 states have (on average 3.0) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:41:14,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:41:14,794 INFO L93 Difference]: Finished difference Result 600 states and 671 transitions. [2022-12-14 09:41:14,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-14 09:41:14,794 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.0) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-12-14 09:41:14,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:41:14,797 INFO L225 Difference]: With dead ends: 600 [2022-12-14 09:41:14,797 INFO L226 Difference]: Without dead ends: 600 [2022-12-14 09:41:14,798 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=82, Invalid=158, Unknown=0, NotChecked=0, Total=240 [2022-12-14 09:41:14,798 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 998 mSDsluCounter, 727 mSDsCounter, 0 mSdLazyCounter, 892 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1000 SdHoareTripleChecker+Valid, 869 SdHoareTripleChecker+Invalid, 915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 892 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 09:41:14,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1000 Valid, 869 Invalid, 915 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 892 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 09:41:14,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2022-12-14 09:41:14,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 257. [2022-12-14 09:41:14,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 156 states have (on average 1.8269230769230769) internal successors, (285), 254 states have internal predecessors, (285), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:41:14,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 299 transitions. [2022-12-14 09:41:14,804 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 299 transitions. Word has length 24 [2022-12-14 09:41:14,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:41:14,804 INFO L495 AbstractCegarLoop]: Abstraction has 257 states and 299 transitions. [2022-12-14 09:41:14,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.0) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:41:14,804 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 299 transitions. [2022-12-14 09:41:14,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-14 09:41:14,804 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:41:14,804 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:41:14,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-14 09:41:14,804 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-12-14 09:41:14,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:41:14,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1986692203, now seen corresponding path program 1 times [2022-12-14 09:41:14,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:41:14,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327623271] [2022-12-14 09:41:14,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:41:14,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:41:14,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:41:15,029 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:41:15,029 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:41:15,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327623271] [2022-12-14 09:41:15,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327623271] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:41:15,030 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:41:15,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-14 09:41:15,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031923823] [2022-12-14 09:41:15,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:41:15,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 09:41:15,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:41:15,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 09:41:15,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-12-14 09:41:15,031 INFO L87 Difference]: Start difference. First operand 257 states and 299 transitions. Second operand has 9 states, 8 states have (on average 3.0) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:41:15,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:41:15,742 INFO L93 Difference]: Finished difference Result 707 states and 786 transitions. [2022-12-14 09:41:15,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 09:41:15,743 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.0) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-12-14 09:41:15,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:41:15,744 INFO L225 Difference]: With dead ends: 707 [2022-12-14 09:41:15,745 INFO L226 Difference]: Without dead ends: 707 [2022-12-14 09:41:15,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2022-12-14 09:41:15,745 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 1490 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 912 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1490 SdHoareTripleChecker+Valid, 654 SdHoareTripleChecker+Invalid, 931 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 912 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 09:41:15,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1490 Valid, 654 Invalid, 931 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 912 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 09:41:15,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2022-12-14 09:41:15,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 257. [2022-12-14 09:41:15,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 156 states have (on average 1.8205128205128205) internal successors, (284), 254 states have internal predecessors, (284), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:41:15,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 298 transitions. [2022-12-14 09:41:15,750 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 298 transitions. Word has length 24 [2022-12-14 09:41:15,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:41:15,750 INFO L495 AbstractCegarLoop]: Abstraction has 257 states and 298 transitions. [2022-12-14 09:41:15,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.0) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:41:15,750 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 298 transitions. [2022-12-14 09:41:15,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-12-14 09:41:15,751 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:41:15,751 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:41:15,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-14 09:41:15,751 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-12-14 09:41:15,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:41:15,752 INFO L85 PathProgramCache]: Analyzing trace with hash -856061257, now seen corresponding path program 1 times [2022-12-14 09:41:15,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:41:15,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704206419] [2022-12-14 09:41:15,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:41:15,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:41:15,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:41:16,064 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:41:16,065 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:41:16,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704206419] [2022-12-14 09:41:16,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704206419] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:41:16,065 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:41:16,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-14 09:41:16,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950349638] [2022-12-14 09:41:16,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:41:16,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 09:41:16,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:41:16,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 09:41:16,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-14 09:41:16,066 INFO L87 Difference]: Start difference. First operand 257 states and 298 transitions. Second operand has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:41:16,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:41:16,748 INFO L93 Difference]: Finished difference Result 532 states and 587 transitions. [2022-12-14 09:41:16,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 09:41:16,748 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-12-14 09:41:16,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:41:16,749 INFO L225 Difference]: With dead ends: 532 [2022-12-14 09:41:16,749 INFO L226 Difference]: Without dead ends: 532 [2022-12-14 09:41:16,750 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=132, Invalid=288, Unknown=0, NotChecked=0, Total=420 [2022-12-14 09:41:16,750 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 1490 mSDsluCounter, 931 mSDsCounter, 0 mSdLazyCounter, 616 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1490 SdHoareTripleChecker+Valid, 1089 SdHoareTripleChecker+Invalid, 626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 09:41:16,750 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1490 Valid, 1089 Invalid, 626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 616 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 09:41:16,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2022-12-14 09:41:16,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 258. [2022-12-14 09:41:16,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 157 states have (on average 1.8152866242038217) internal successors, (285), 255 states have internal predecessors, (285), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:41:16,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 299 transitions. [2022-12-14 09:41:16,754 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 299 transitions. Word has length 27 [2022-12-14 09:41:16,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:41:16,754 INFO L495 AbstractCegarLoop]: Abstraction has 258 states and 299 transitions. [2022-12-14 09:41:16,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:41:16,754 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 299 transitions. [2022-12-14 09:41:16,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-12-14 09:41:16,755 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:41:16,755 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:41:16,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-14 09:41:16,755 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-12-14 09:41:16,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:41:16,755 INFO L85 PathProgramCache]: Analyzing trace with hash -897960630, now seen corresponding path program 1 times [2022-12-14 09:41:16,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:41:16,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839311568] [2022-12-14 09:41:16,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:41:16,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:41:16,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:41:17,038 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:41:17,038 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:41:17,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839311568] [2022-12-14 09:41:17,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839311568] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:41:17,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:41:17,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-14 09:41:17,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593043359] [2022-12-14 09:41:17,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:41:17,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 09:41:17,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:41:17,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 09:41:17,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-14 09:41:17,040 INFO L87 Difference]: Start difference. First operand 258 states and 299 transitions. Second operand has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:41:17,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:41:17,723 INFO L93 Difference]: Finished difference Result 531 states and 585 transitions. [2022-12-14 09:41:17,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 09:41:17,723 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-12-14 09:41:17,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:41:17,724 INFO L225 Difference]: With dead ends: 531 [2022-12-14 09:41:17,724 INFO L226 Difference]: Without dead ends: 531 [2022-12-14 09:41:17,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=132, Invalid=288, Unknown=0, NotChecked=0, Total=420 [2022-12-14 09:41:17,725 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 1485 mSDsluCounter, 931 mSDsCounter, 0 mSdLazyCounter, 616 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1485 SdHoareTripleChecker+Valid, 1089 SdHoareTripleChecker+Invalid, 626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 09:41:17,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1485 Valid, 1089 Invalid, 626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 616 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 09:41:17,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2022-12-14 09:41:17,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 258. [2022-12-14 09:41:17,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 157 states have (on average 1.8089171974522293) internal successors, (284), 255 states have internal predecessors, (284), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:41:17,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 298 transitions. [2022-12-14 09:41:17,732 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 298 transitions. Word has length 27 [2022-12-14 09:41:17,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:41:17,732 INFO L495 AbstractCegarLoop]: Abstraction has 258 states and 298 transitions. [2022-12-14 09:41:17,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:41:17,732 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 298 transitions. [2022-12-14 09:41:17,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-12-14 09:41:17,733 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:41:17,733 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:41:17,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-14 09:41:17,733 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-12-14 09:41:17,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:41:17,733 INFO L85 PathProgramCache]: Analyzing trace with hash -2067233019, now seen corresponding path program 1 times [2022-12-14 09:41:17,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:41:17,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521165688] [2022-12-14 09:41:17,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:41:17,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:41:17,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:41:18,033 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:41:18,033 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:41:18,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521165688] [2022-12-14 09:41:18,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521165688] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:41:18,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [977281754] [2022-12-14 09:41:18,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:41:18,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:41:18,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:41:18,035 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:41:18,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 09:41:18,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:41:18,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 32 conjunts are in the unsatisfiable core [2022-12-14 09:41:18,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:41:18,218 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:41:18,225 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:41:18,294 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-14 09:41:18,297 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-14 09:41:18,301 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:41:18,301 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:41:18,449 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:41:18,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [977281754] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:41:18,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1958490547] [2022-12-14 09:41:18,467 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2022-12-14 09:41:18,468 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:41:18,472 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:41:18,477 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:41:18,477 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:41:18,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:18,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:18,548 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 09:41:18,565 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:41:18,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:18,573 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-12-14 09:41:18,584 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:41:18,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:18,602 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 09:41:18,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:18,612 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 09:41:18,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:18,624 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 09:41:18,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:18,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:18,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:18,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:18,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:18,637 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-12-14 09:41:18,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:18,665 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 09:41:18,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:18,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:18,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:18,678 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 38 [2022-12-14 09:41:18,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:18,693 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 09:41:18,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:18,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:18,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:18,725 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 38 [2022-12-14 09:41:18,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:18,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:18,739 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 09:41:18,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:18,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:18,755 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 09:41:18,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:18,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:18,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:18,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:18,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:18,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:18,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:18,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:18,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:18,803 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 47 [2022-12-14 09:41:18,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:18,865 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-12-14 09:41:18,865 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 143 treesize of output 111 [2022-12-14 09:41:18,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:18,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:18,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:18,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:18,890 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2022-12-14 09:41:18,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:18,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:18,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:18,908 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 40 [2022-12-14 09:41:18,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:18,959 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:18,976 INFO L321 Elim1Store]: treesize reduction 47, result has 13.0 percent of original size [2022-12-14 09:41:18,976 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 177 treesize of output 129 [2022-12-14 09:41:18,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:18,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:18,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:19,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:19,001 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 45 [2022-12-14 09:41:19,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:19,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:19,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:19,018 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 49 [2022-12-14 09:41:19,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:19,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:19,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:19,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:19,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:19,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:19,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:19,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:19,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:19,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:19,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:19,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:19,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:19,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:19,056 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 55 [2022-12-14 09:41:19,124 INFO L321 Elim1Store]: treesize reduction 72, result has 23.4 percent of original size [2022-12-14 09:41:19,124 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 169 treesize of output 136 [2022-12-14 09:41:19,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:19,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:19,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:19,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:19,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:19,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:19,144 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 57 [2022-12-14 09:41:19,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:19,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:19,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:19,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:19,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:19,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:19,167 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 52 [2022-12-14 09:41:19,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:19,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:19,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:19,262 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:19,262 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:19,263 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:19,284 INFO L321 Elim1Store]: treesize reduction 65, result has 9.7 percent of original size [2022-12-14 09:41:19,284 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 483 treesize of output 445 [2022-12-14 09:41:19,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:19,298 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:19,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:19,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:19,300 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:19,301 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:19,319 INFO L321 Elim1Store]: treesize reduction 131, result has 9.0 percent of original size [2022-12-14 09:41:19,319 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 621 treesize of output 624 [2022-12-14 09:41:19,332 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:19,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:19,334 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:19,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:19,358 INFO L321 Elim1Store]: treesize reduction 80, result has 33.9 percent of original size [2022-12-14 09:41:19,358 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 639 treesize of output 606 [2022-12-14 09:41:19,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:19,676 INFO L321 Elim1Store]: treesize reduction 296, result has 15.9 percent of original size [2022-12-14 09:41:19,676 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 19 case distinctions, treesize of input 1230 treesize of output 1211 [2022-12-14 09:41:20,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:20,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:20,143 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:20,143 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:20,202 INFO L321 Elim1Store]: treesize reduction 116, result has 22.1 percent of original size [2022-12-14 09:41:20,202 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 2133 treesize of output 1288 [2022-12-14 09:41:20,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:20,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:20,239 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:20,240 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:20,304 INFO L321 Elim1Store]: treesize reduction 232, result has 21.4 percent of original size [2022-12-14 09:41:20,305 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 17 case distinctions, treesize of input 2109 treesize of output 1967 [2022-12-14 09:41:20,351 INFO L321 Elim1Store]: treesize reduction 43, result has 14.0 percent of original size [2022-12-14 09:41:20,352 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 6 case distinctions, treesize of input 2053 treesize of output 1908 [2022-12-14 09:41:21,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:21,126 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:21,127 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:21,128 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:21,169 INFO L321 Elim1Store]: treesize reduction 134, result has 11.3 percent of original size [2022-12-14 09:41:21,169 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 22 case distinctions, treesize of input 3937 treesize of output 2318 [2022-12-14 09:41:21,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:21,217 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:21,218 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:21,219 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:21,264 INFO L321 Elim1Store]: treesize reduction 238, result has 8.8 percent of original size [2022-12-14 09:41:21,265 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 22 case distinctions, treesize of input 3955 treesize of output 3637 [2022-12-14 09:41:21,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:21,443 INFO L321 Elim1Store]: treesize reduction 410, result has 13.7 percent of original size [2022-12-14 09:41:21,443 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 26 case distinctions, treesize of input 3936 treesize of output 3782 [2022-12-14 09:41:21,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:21,528 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:21,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:21,572 INFO L321 Elim1Store]: treesize reduction 82, result has 34.4 percent of original size [2022-12-14 09:41:21,572 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 7 case distinctions, treesize of input 3888 treesize of output 3620 [2022-12-14 09:41:24,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:24,680 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:24,681 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:24,797 INFO L321 Elim1Store]: treesize reduction 164, result has 19.6 percent of original size [2022-12-14 09:41:24,798 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 25 case distinctions, treesize of input 14329 treesize of output 8383 [2022-12-14 09:41:24,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:24,985 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:24,985 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:25,090 INFO L321 Elim1Store]: treesize reduction 300, result has 18.9 percent of original size [2022-12-14 09:41:25,090 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 24 case distinctions, treesize of input 14291 treesize of output 13122 [2022-12-14 09:41:25,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:25,275 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:25,299 INFO L321 Elim1Store]: treesize reduction 73, result has 8.8 percent of original size [2022-12-14 09:41:25,300 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 14136 treesize of output 13160 [2022-12-14 09:41:28,853 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:41:28,857 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 09:41:28,860 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:41:28,875 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 09:41:28,875 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-12-14 09:41:28,893 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 09:41:28,893 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 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-14 09:41:28,906 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:41:28,912 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-14 09:41:28,919 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:41:28,936 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:41:28,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:28,943 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 09:41:28,964 INFO L321 Elim1Store]: treesize reduction 24, result has 38.5 percent of original size [2022-12-14 09:41:28,965 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 31 [2022-12-14 09:41:28,993 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 09:41:28,993 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-12-14 09:41:29,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:29,002 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-12-14 09:41:29,014 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 09:41:29,020 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 18 [2022-12-14 09:41:29,028 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-12-14 09:41:29,038 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:41:29,042 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:41:29,046 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 09:41:29,738 INFO L321 Elim1Store]: treesize reduction 46, result has 37.8 percent of original size [2022-12-14 09:41:29,738 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 125 treesize of output 145 [2022-12-14 09:41:29,854 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 09:41:29,855 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 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-14 09:41:29,884 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 09:41:29,885 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 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-14 09:41:30,027 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-12-14 09:41:30,027 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 418 treesize of output 421 [2022-12-14 09:41:30,047 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-12-14 09:41:30,048 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 410 treesize of output 381 [2022-12-14 09:41:30,176 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:41:30,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:30,310 INFO L321 Elim1Store]: treesize reduction 70, result has 28.6 percent of original size [2022-12-14 09:41:30,311 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 8 case distinctions, treesize of input 726 treesize of output 723 [2022-12-14 09:41:30,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:30,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:30,330 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 691 treesize of output 653 [2022-12-14 09:41:30,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:30,369 INFO L321 Elim1Store]: treesize reduction 39, result has 30.4 percent of original size [2022-12-14 09:41:30,370 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 704 treesize of output 687 [2022-12-14 09:41:31,677 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 09:41:31,677 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 29 [2022-12-14 09:41:31,718 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-12-14 09:41:31,719 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 1 [2022-12-14 09:41:31,779 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 09:41:31,779 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-12-14 09:41:31,887 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 09:41:31,887 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-12-14 09:41:31,925 INFO L321 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2022-12-14 09:41:31,926 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 1 [2022-12-14 09:41:31,967 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 09:41:31,968 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-12-14 09:41:32,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:32,139 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 09:41:32,242 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:41:33,945 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '14798#(and (<= 0 |#NULL.base|) (not (= (select |#valid| |ULTIMATE.start_inspect_before_~shape#1.base|) 1)) (<= 0 |ULTIMATE.start_main_~item~0#1.offset|) (<= 0 |ULTIMATE.start_main_~node~1#1.offset|) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_inspect_before_#in~shape#1.offset|) (<= |ULTIMATE.start_main_~item~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~data~0#1.offset|) (<= |#NULL.base| 0) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_main_~data~0#1.offset| 0) (<= |ULTIMATE.start_inspect_before_#in~shape#1.offset| 0) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~node~1#1.offset| 0))' at error location [2022-12-14 09:41:33,946 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 09:41:33,946 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:41:33,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 7] total 13 [2022-12-14 09:41:33,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154778575] [2022-12-14 09:41:33,946 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 09:41:33,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-14 09:41:33,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:41:33,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-14 09:41:33,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=870, Unknown=0, NotChecked=0, Total=992 [2022-12-14 09:41:33,947 INFO L87 Difference]: Start difference. First operand 258 states and 298 transitions. Second operand has 14 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 13 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:41:34,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:41:34,203 INFO L93 Difference]: Finished difference Result 434 states and 491 transitions. [2022-12-14 09:41:34,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 09:41:34,203 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 13 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-12-14 09:41:34,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:41:34,204 INFO L225 Difference]: With dead ends: 434 [2022-12-14 09:41:34,204 INFO L226 Difference]: Without dead ends: 430 [2022-12-14 09:41:34,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 56 SyntacticMatches, 5 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 325 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=137, Invalid=985, Unknown=0, NotChecked=0, Total=1122 [2022-12-14 09:41:34,205 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 522 mSDsluCounter, 1071 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 522 SdHoareTripleChecker+Valid, 1248 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 09:41:34,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [522 Valid, 1248 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 470 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 09:41:34,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2022-12-14 09:41:34,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 269. [2022-12-14 09:41:34,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 168 states have (on average 1.7619047619047619) internal successors, (296), 266 states have internal predecessors, (296), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:41:34,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 310 transitions. [2022-12-14 09:41:34,209 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 310 transitions. Word has length 28 [2022-12-14 09:41:34,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:41:34,209 INFO L495 AbstractCegarLoop]: Abstraction has 269 states and 310 transitions. [2022-12-14 09:41:34,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 13 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:41:34,209 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 310 transitions. [2022-12-14 09:41:34,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 09:41:34,209 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:41:34,209 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:41:34,215 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 09:41:34,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:41:34,411 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr31REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-12-14 09:41:34,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:41:34,413 INFO L85 PathProgramCache]: Analyzing trace with hash -260397027, now seen corresponding path program 1 times [2022-12-14 09:41:34,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:41:34,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686579068] [2022-12-14 09:41:34,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:41:34,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:41:34,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:41:34,554 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:41:34,554 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:41:34,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686579068] [2022-12-14 09:41:34,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686579068] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:41:34,554 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:41:34,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 09:41:34,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253465423] [2022-12-14 09:41:34,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:41:34,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:41:34,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:41:34,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:41:34,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:41:34,556 INFO L87 Difference]: Start difference. First operand 269 states and 310 transitions. Second operand has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:41:34,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:41:34,809 INFO L93 Difference]: Finished difference Result 441 states and 486 transitions. [2022-12-14 09:41:34,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:41:34,809 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-12-14 09:41:34,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:41:34,811 INFO L225 Difference]: With dead ends: 441 [2022-12-14 09:41:34,812 INFO L226 Difference]: Without dead ends: 441 [2022-12-14 09:41:34,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 09:41:34,812 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 428 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 09:41:34,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [428 Valid, 478 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 413 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 09:41:34,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2022-12-14 09:41:34,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 274. [2022-12-14 09:41:34,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 173 states have (on average 1.76878612716763) internal successors, (306), 271 states have internal predecessors, (306), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:41:34,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 320 transitions. [2022-12-14 09:41:34,819 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 320 transitions. Word has length 31 [2022-12-14 09:41:34,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:41:34,820 INFO L495 AbstractCegarLoop]: Abstraction has 274 states and 320 transitions. [2022-12-14 09:41:34,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:41:34,820 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 320 transitions. [2022-12-14 09:41:34,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 09:41:34,820 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:41:34,820 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:41:34,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-14 09:41:34,821 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-12-14 09:41:34,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:41:34,821 INFO L85 PathProgramCache]: Analyzing trace with hash -260397028, now seen corresponding path program 1 times [2022-12-14 09:41:34,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:41:34,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544159585] [2022-12-14 09:41:34,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:41:34,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:41:34,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:41:34,889 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 09:41:34,889 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:41:34,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544159585] [2022-12-14 09:41:34,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544159585] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:41:34,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:41:34,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:41:34,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090982019] [2022-12-14 09:41:34,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:41:34,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 09:41:34,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:41:34,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 09:41:34,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-14 09:41:34,891 INFO L87 Difference]: Start difference. First operand 274 states and 320 transitions. Second operand has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:41:35,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:41:35,197 INFO L93 Difference]: Finished difference Result 546 states and 628 transitions. [2022-12-14 09:41:35,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 09:41:35,197 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-12-14 09:41:35,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:41:35,198 INFO L225 Difference]: With dead ends: 546 [2022-12-14 09:41:35,199 INFO L226 Difference]: Without dead ends: 546 [2022-12-14 09:41:35,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-12-14 09:41:35,199 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 865 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 867 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 09:41:35,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [867 Valid, 442 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 09:41:35,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2022-12-14 09:41:35,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 274. [2022-12-14 09:41:35,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 175 states have (on average 1.7428571428571429) internal successors, (305), 271 states have internal predecessors, (305), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:41:35,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 319 transitions. [2022-12-14 09:41:35,204 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 319 transitions. Word has length 31 [2022-12-14 09:41:35,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:41:35,204 INFO L495 AbstractCegarLoop]: Abstraction has 274 states and 319 transitions. [2022-12-14 09:41:35,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:41:35,204 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 319 transitions. [2022-12-14 09:41:35,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-12-14 09:41:35,205 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:41:35,205 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:41:35,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-14 09:41:35,205 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-12-14 09:41:35,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:41:35,205 INFO L85 PathProgramCache]: Analyzing trace with hash -1131391516, now seen corresponding path program 1 times [2022-12-14 09:41:35,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:41:35,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808873450] [2022-12-14 09:41:35,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:41:35,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:41:35,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:41:35,269 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:41:35,269 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:41:35,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808873450] [2022-12-14 09:41:35,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808873450] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:41:35,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:41:35,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 09:41:35,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016131174] [2022-12-14 09:41:35,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:41:35,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 09:41:35,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:41:35,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 09:41:35,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 09:41:35,271 INFO L87 Difference]: Start difference. First operand 274 states and 319 transitions. Second operand has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:41:35,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:41:35,402 INFO L93 Difference]: Finished difference Result 371 states and 412 transitions. [2022-12-14 09:41:35,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 09:41:35,402 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-12-14 09:41:35,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:41:35,403 INFO L225 Difference]: With dead ends: 371 [2022-12-14 09:41:35,403 INFO L226 Difference]: Without dead ends: 371 [2022-12-14 09:41:35,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-12-14 09:41:35,404 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 711 mSDsluCounter, 482 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 713 SdHoareTripleChecker+Valid, 667 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:41:35,404 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [713 Valid, 667 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:41:35,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2022-12-14 09:41:35,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 274. [2022-12-14 09:41:35,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 175 states have (on average 1.737142857142857) internal successors, (304), 271 states have internal predecessors, (304), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:41:35,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 318 transitions. [2022-12-14 09:41:35,408 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 318 transitions. Word has length 33 [2022-12-14 09:41:35,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:41:35,408 INFO L495 AbstractCegarLoop]: Abstraction has 274 states and 318 transitions. [2022-12-14 09:41:35,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:41:35,408 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 318 transitions. [2022-12-14 09:41:35,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-12-14 09:41:35,408 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:41:35,408 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:41:35,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-14 09:41:35,409 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-12-14 09:41:35,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:41:35,409 INFO L85 PathProgramCache]: Analyzing trace with hash 517949797, now seen corresponding path program 1 times [2022-12-14 09:41:35,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:41:35,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103130837] [2022-12-14 09:41:35,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:41:35,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:41:35,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:41:35,472 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:41:35,472 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:41:35,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103130837] [2022-12-14 09:41:35,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103130837] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:41:35,472 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:41:35,472 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 09:41:35,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052089869] [2022-12-14 09:41:35,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:41:35,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 09:41:35,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:41:35,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 09:41:35,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 09:41:35,474 INFO L87 Difference]: Start difference. First operand 274 states and 318 transitions. Second operand has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:41:35,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:41:35,663 INFO L93 Difference]: Finished difference Result 480 states and 533 transitions. [2022-12-14 09:41:35,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 09:41:35,663 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-12-14 09:41:35,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:41:35,665 INFO L225 Difference]: With dead ends: 480 [2022-12-14 09:41:35,665 INFO L226 Difference]: Without dead ends: 480 [2022-12-14 09:41:35,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-12-14 09:41:35,666 INFO L413 NwaCegarLoop]: 244 mSDtfsCounter, 973 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 975 SdHoareTripleChecker+Valid, 776 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 09:41:35,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [975 Valid, 776 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 09:41:35,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2022-12-14 09:41:35,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 274. [2022-12-14 09:41:35,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 175 states have (on average 1.7314285714285715) internal successors, (303), 271 states have internal predecessors, (303), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:41:35,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 317 transitions. [2022-12-14 09:41:35,671 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 317 transitions. Word has length 32 [2022-12-14 09:41:35,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:41:35,671 INFO L495 AbstractCegarLoop]: Abstraction has 274 states and 317 transitions. [2022-12-14 09:41:35,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:41:35,672 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 317 transitions. [2022-12-14 09:41:35,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-12-14 09:41:35,672 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:41:35,672 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:41:35,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-12-14 09:41:35,672 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr67REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-12-14 09:41:35,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:41:35,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1131392727, now seen corresponding path program 1 times [2022-12-14 09:41:35,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:41:35,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458131979] [2022-12-14 09:41:35,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:41:35,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:41:35,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:41:35,743 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 09:41:35,743 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:41:35,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458131979] [2022-12-14 09:41:35,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458131979] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:41:35,744 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:41:35,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:41:35,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889943745] [2022-12-14 09:41:35,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:41:35,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 09:41:35,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:41:35,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 09:41:35,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-14 09:41:35,745 INFO L87 Difference]: Start difference. First operand 274 states and 317 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:41:36,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:41:36,043 INFO L93 Difference]: Finished difference Result 492 states and 561 transitions. [2022-12-14 09:41:36,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 09:41:36,043 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-12-14 09:41:36,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:41:36,044 INFO L225 Difference]: With dead ends: 492 [2022-12-14 09:41:36,044 INFO L226 Difference]: Without dead ends: 492 [2022-12-14 09:41:36,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 09:41:36,045 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 402 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 558 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 09:41:36,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [408 Valid, 558 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 09:41:36,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2022-12-14 09:41:36,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 271. [2022-12-14 09:41:36,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 175 states have (on average 1.697142857142857) internal successors, (297), 268 states have internal predecessors, (297), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:41:36,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 311 transitions. [2022-12-14 09:41:36,050 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 311 transitions. Word has length 33 [2022-12-14 09:41:36,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:41:36,050 INFO L495 AbstractCegarLoop]: Abstraction has 271 states and 311 transitions. [2022-12-14 09:41:36,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:41:36,050 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 311 transitions. [2022-12-14 09:41:36,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-12-14 09:41:36,051 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:41:36,051 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:41:36,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-12-14 09:41:36,051 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr68REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-12-14 09:41:36,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:41:36,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1131392726, now seen corresponding path program 1 times [2022-12-14 09:41:36,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:41:36,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878250919] [2022-12-14 09:41:36,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:41:36,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:41:36,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:41:36,163 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:41:36,163 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:41:36,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878250919] [2022-12-14 09:41:36,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878250919] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:41:36,163 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:41:36,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 09:41:36,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904170595] [2022-12-14 09:41:36,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:41:36,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:41:36,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:41:36,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:41:36,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:41:36,164 INFO L87 Difference]: Start difference. First operand 271 states and 311 transitions. Second operand has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:41:36,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:41:36,406 INFO L93 Difference]: Finished difference Result 365 states and 404 transitions. [2022-12-14 09:41:36,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 09:41:36,406 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-12-14 09:41:36,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:41:36,407 INFO L225 Difference]: With dead ends: 365 [2022-12-14 09:41:36,407 INFO L226 Difference]: Without dead ends: 365 [2022-12-14 09:41:36,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-14 09:41:36,408 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 312 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 09:41:36,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 426 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 09:41:36,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2022-12-14 09:41:36,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 271. [2022-12-14 09:41:36,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 175 states have (on average 1.68) internal successors, (294), 268 states have internal predecessors, (294), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:41:36,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 308 transitions. [2022-12-14 09:41:36,413 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 308 transitions. Word has length 33 [2022-12-14 09:41:36,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:41:36,413 INFO L495 AbstractCegarLoop]: Abstraction has 271 states and 308 transitions. [2022-12-14 09:41:36,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:41:36,414 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 308 transitions. [2022-12-14 09:41:36,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-12-14 09:41:36,414 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:41:36,414 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2022-12-14 09:41:36,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-12-14 09:41:36,414 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-12-14 09:41:36,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:41:36,415 INFO L85 PathProgramCache]: Analyzing trace with hash -100268176, now seen corresponding path program 2 times [2022-12-14 09:41:36,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:41:36,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542046953] [2022-12-14 09:41:36,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:41:36,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:41:36,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:41:36,812 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:41:36,812 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:41:36,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542046953] [2022-12-14 09:41:36,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542046953] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:41:36,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1953026039] [2022-12-14 09:41:36,812 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 09:41:36,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:41:36,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:41:36,813 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:41:36,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 09:41:36,903 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-12-14 09:41:36,904 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 09:41:36,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 36 conjunts are in the unsatisfiable core [2022-12-14 09:41:36,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:41:36,911 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 09:41:36,922 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 09:41:36,922 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-14 09:41:36,930 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-14 09:41:36,930 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 12 treesize of output 14 [2022-12-14 09:41:36,945 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:41:37,019 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2022-12-14 09:41:37,029 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:41:37,029 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:41:37,127 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:41:37,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1953026039] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:41:37,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1311512213] [2022-12-14 09:41:37,130 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2022-12-14 09:41:37,130 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:41:37,130 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:41:37,130 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:41:37,130 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:41:37,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,159 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 09:41:37,172 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:41:37,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,179 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-12-14 09:41:37,186 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:41:37,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,208 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-12-14 09:41:37,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,217 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 09:41:37,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,225 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 09:41:37,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,236 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 09:41:37,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,250 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 09:41:37,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,258 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 09:41:37,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,278 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 38 [2022-12-14 09:41:37,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,305 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 38 [2022-12-14 09:41:37,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,316 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 09:41:37,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,327 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 09:41:37,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,372 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 47 [2022-12-14 09:41:37,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,434 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-12-14 09:41:37,434 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 143 treesize of output 111 [2022-12-14 09:41:37,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,449 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2022-12-14 09:41:37,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,462 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 40 [2022-12-14 09:41:37,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,497 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:37,509 INFO L321 Elim1Store]: treesize reduction 47, result has 13.0 percent of original size [2022-12-14 09:41:37,509 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 177 treesize of output 129 [2022-12-14 09:41:37,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,530 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 49 [2022-12-14 09:41:37,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,549 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 45 [2022-12-14 09:41:37,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,582 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 55 [2022-12-14 09:41:37,652 INFO L321 Elim1Store]: treesize reduction 72, result has 23.4 percent of original size [2022-12-14 09:41:37,653 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 169 treesize of output 136 [2022-12-14 09:41:37,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,673 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 52 [2022-12-14 09:41:37,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,694 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 57 [2022-12-14 09:41:37,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,765 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:37,765 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:37,766 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:37,785 INFO L321 Elim1Store]: treesize reduction 65, result has 9.7 percent of original size [2022-12-14 09:41:37,786 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 483 treesize of output 445 [2022-12-14 09:41:37,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,801 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:37,802 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:37,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,830 INFO L321 Elim1Store]: treesize reduction 80, result has 33.9 percent of original size [2022-12-14 09:41:37,830 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 627 treesize of output 594 [2022-12-14 09:41:37,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,847 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:37,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:37,849 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:37,849 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:37,865 INFO L321 Elim1Store]: treesize reduction 131, result has 9.0 percent of original size [2022-12-14 09:41:37,866 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 593 treesize of output 596 [2022-12-14 09:41:38,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:38,158 INFO L321 Elim1Store]: treesize reduction 296, result has 15.9 percent of original size [2022-12-14 09:41:38,159 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 19 case distinctions, treesize of input 1230 treesize of output 1211 [2022-12-14 09:41:38,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:38,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:38,540 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:38,541 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:38,655 INFO L321 Elim1Store]: treesize reduction 116, result has 22.1 percent of original size [2022-12-14 09:41:38,656 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 1462 treesize of output 893 [2022-12-14 09:41:38,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:38,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:38,685 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:38,685 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:38,757 INFO L321 Elim1Store]: treesize reduction 232, result has 21.4 percent of original size [2022-12-14 09:41:38,757 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 17 case distinctions, treesize of input 1452 treesize of output 1380 [2022-12-14 09:41:38,828 INFO L321 Elim1Store]: treesize reduction 43, result has 14.0 percent of original size [2022-12-14 09:41:38,828 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 6 case distinctions, treesize of input 1410 treesize of output 1313 [2022-12-14 09:41:39,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:39,447 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:39,447 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:39,448 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:39,508 INFO L321 Elim1Store]: treesize reduction 134, result has 11.3 percent of original size [2022-12-14 09:41:39,509 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 22 case distinctions, treesize of input 3497 treesize of output 2086 [2022-12-14 09:41:39,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:39,744 INFO L321 Elim1Store]: treesize reduction 410, result has 13.7 percent of original size [2022-12-14 09:41:39,745 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 26 case distinctions, treesize of input 3496 treesize of output 3374 [2022-12-14 09:41:39,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:39,802 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:39,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:39,846 INFO L321 Elim1Store]: treesize reduction 82, result has 34.4 percent of original size [2022-12-14 09:41:39,847 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 7 case distinctions, treesize of input 3460 treesize of output 3216 [2022-12-14 09:41:39,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:39,897 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:39,898 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:39,899 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:39,943 INFO L321 Elim1Store]: treesize reduction 238, result has 8.8 percent of original size [2022-12-14 09:41:39,943 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 3435 treesize of output 3155 [2022-12-14 09:41:41,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:41,292 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:41,292 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:41,391 INFO L321 Elim1Store]: treesize reduction 164, result has 19.6 percent of original size [2022-12-14 09:41:41,392 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 25 case distinctions, treesize of input 6984 treesize of output 4114 [2022-12-14 09:41:41,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:41,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:41,471 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:41,493 INFO L321 Elim1Store]: treesize reduction 73, result has 8.8 percent of original size [2022-12-14 09:41:41,493 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 6959 treesize of output 6495 [2022-12-14 09:41:41,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:41,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:41,580 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:41,580 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:41,669 INFO L321 Elim1Store]: treesize reduction 284, result has 18.2 percent of original size [2022-12-14 09:41:41,670 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 23 case distinctions, treesize of input 6960 treesize of output 6423 [2022-12-14 09:41:44,744 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 09:41:44,747 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:41:44,751 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:41:44,769 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 09:41:44,769 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 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-14 09:41:44,775 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-14 09:41:44,787 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:41:44,792 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-14 09:41:44,798 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:41:44,821 INFO L321 Elim1Store]: treesize reduction 24, result has 38.5 percent of original size [2022-12-14 09:41:44,821 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 33 [2022-12-14 09:41:44,848 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 09:41:44,849 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-12-14 09:41:44,856 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:41:44,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:44,863 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2022-12-14 09:41:44,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:44,871 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 09:41:44,886 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 18 [2022-12-14 09:41:44,893 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 09:41:44,901 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 09:41:44,912 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:41:44,915 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 09:41:44,918 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:41:45,591 INFO L321 Elim1Store]: treesize reduction 46, result has 37.8 percent of original size [2022-12-14 09:41:45,592 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 125 treesize of output 145 [2022-12-14 09:41:45,696 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 09:41:45,696 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 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-14 09:41:45,725 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 09:41:45,725 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 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-14 09:41:45,870 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-12-14 09:41:45,871 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 418 treesize of output 421 [2022-12-14 09:41:45,892 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-12-14 09:41:45,893 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 410 treesize of output 381 [2022-12-14 09:41:46,043 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:41:46,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:46,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:46,132 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 852 treesize of output 802 [2022-12-14 09:41:46,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:46,207 INFO L321 Elim1Store]: treesize reduction 70, result has 28.6 percent of original size [2022-12-14 09:41:46,207 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 8 case distinctions, treesize of input 857 treesize of output 850 [2022-12-14 09:41:46,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:46,247 INFO L321 Elim1Store]: treesize reduction 39, result has 30.4 percent of original size [2022-12-14 09:41:46,248 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 831 treesize of output 814 [2022-12-14 09:41:47,605 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 09:41:47,606 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-12-14 09:41:47,808 INFO L321 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2022-12-14 09:41:47,809 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 1 [2022-12-14 09:41:47,953 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2022-12-14 09:41:47,992 INFO L321 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2022-12-14 09:41:47,993 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 1 [2022-12-14 09:41:48,015 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2022-12-14 09:41:48,055 INFO L321 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2022-12-14 09:41:48,055 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 1 [2022-12-14 09:41:48,097 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-12-14 09:41:48,097 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 1 [2022-12-14 09:41:48,135 INFO L321 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2022-12-14 09:41:48,135 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 1 [2022-12-14 09:41:48,177 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-12-14 09:41:48,178 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 1 [2022-12-14 09:41:48,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:48,298 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 09:41:48,356 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:41:49,969 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '20146#(and (<= 0 |#NULL.base|) (not (= (select |#valid| |ULTIMATE.start_inspect_before_~shape#1.base|) 1)) (<= 0 |ULTIMATE.start_main_~item~0#1.offset|) (<= 0 |ULTIMATE.start_main_~node~1#1.offset|) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_inspect_before_#in~shape#1.offset|) (<= |ULTIMATE.start_main_~item~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~data~0#1.offset|) (<= |#NULL.base| 0) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_main_~data~0#1.offset| 0) (<= |ULTIMATE.start_inspect_before_#in~shape#1.offset| 0) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~node~1#1.offset| 0))' at error location [2022-12-14 09:41:49,970 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 09:41:49,970 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:41:49,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7, 7] total 17 [2022-12-14 09:41:49,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396939897] [2022-12-14 09:41:49,970 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 09:41:49,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-14 09:41:49,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:41:49,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-14 09:41:49,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=1093, Unknown=0, NotChecked=0, Total=1260 [2022-12-14 09:41:49,971 INFO L87 Difference]: Start difference. First operand 271 states and 308 transitions. Second operand has 18 states, 17 states have (on average 5.235294117647059) internal successors, (89), 18 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:41:50,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:41:50,820 INFO L93 Difference]: Finished difference Result 580 states and 658 transitions. [2022-12-14 09:41:50,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 09:41:50,821 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 5.235294117647059) internal successors, (89), 18 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-12-14 09:41:50,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:41:50,822 INFO L225 Difference]: With dead ends: 580 [2022-12-14 09:41:50,822 INFO L226 Difference]: Without dead ends: 580 [2022-12-14 09:41:50,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 76 SyntacticMatches, 3 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 551 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=304, Invalid=1766, Unknown=0, NotChecked=0, Total=2070 [2022-12-14 09:41:50,822 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 1690 mSDsluCounter, 1143 mSDsCounter, 0 mSdLazyCounter, 1566 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1692 SdHoareTripleChecker+Valid, 1353 SdHoareTripleChecker+Invalid, 1629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-14 09:41:50,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1692 Valid, 1353 Invalid, 1629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1566 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-14 09:41:50,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2022-12-14 09:41:50,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 272. [2022-12-14 09:41:50,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 176 states have (on average 1.6818181818181819) internal successors, (296), 269 states have internal predecessors, (296), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:41:50,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 310 transitions. [2022-12-14 09:41:50,830 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 310 transitions. Word has length 34 [2022-12-14 09:41:50,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:41:50,830 INFO L495 AbstractCegarLoop]: Abstraction has 272 states and 310 transitions. [2022-12-14 09:41:50,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 5.235294117647059) internal successors, (89), 18 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:41:50,830 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 310 transitions. [2022-12-14 09:41:50,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-12-14 09:41:50,830 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:41:50,831 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2022-12-14 09:41:50,836 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-14 09:41:51,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-12-14 09:41:51,031 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-12-14 09:41:51,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:41:51,032 INFO L85 PathProgramCache]: Analyzing trace with hash -100268175, now seen corresponding path program 1 times [2022-12-14 09:41:51,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:41:51,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332037643] [2022-12-14 09:41:51,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:41:51,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:41:51,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:41:51,512 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:41:51,513 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:41:51,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332037643] [2022-12-14 09:41:51,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332037643] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:41:51,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [843068860] [2022-12-14 09:41:51,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:41:51,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:41:51,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:41:51,514 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:41:51,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 09:41:51,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:41:51,618 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 47 conjunts are in the unsatisfiable core [2022-12-14 09:41:51,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:41:51,623 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 09:41:51,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:51,667 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-14 09:41:51,673 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-14 09:41:51,673 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-12-14 09:41:51,699 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 09:41:51,699 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 20 [2022-12-14 09:41:51,729 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:41:51,735 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:41:51,879 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-14 09:41:51,881 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2022-12-14 09:41:51,899 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:41:51,899 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:41:52,260 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 83 treesize of output 79 [2022-12-14 09:41:52,322 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:41:52,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [843068860] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:41:52,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [824589288] [2022-12-14 09:41:52,324 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2022-12-14 09:41:52,324 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:41:52,324 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:41:52,324 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:41:52,324 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:41:52,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,345 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 09:41:52,359 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:41:52,366 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:41:52,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,374 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-12-14 09:41:52,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,394 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-12-14 09:41:52,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,404 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 09:41:52,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,414 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 09:41:52,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,423 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 09:41:52,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,440 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 38 [2022-12-14 09:41:52,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,452 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 09:41:52,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,461 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 09:41:52,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,484 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 38 [2022-12-14 09:41:52,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,496 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 09:41:52,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,508 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 09:41:52,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,546 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 47 [2022-12-14 09:41:52,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,592 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-12-14 09:41:52,592 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 143 treesize of output 111 [2022-12-14 09:41:52,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,614 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 40 [2022-12-14 09:41:52,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,632 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2022-12-14 09:41:52,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,664 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:52,681 INFO L321 Elim1Store]: treesize reduction 49, result has 15.5 percent of original size [2022-12-14 09:41:52,681 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 179 treesize of output 131 [2022-12-14 09:41:52,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,722 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 60 [2022-12-14 09:41:52,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,742 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 47 [2022-12-14 09:41:52,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,759 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 49 [2022-12-14 09:41:52,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,835 INFO L321 Elim1Store]: treesize reduction 72, result has 23.4 percent of original size [2022-12-14 09:41:52,836 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 171 treesize of output 138 [2022-12-14 09:41:52,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,858 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2022-12-14 09:41:52,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,881 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 57 [2022-12-14 09:41:52,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,943 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:52,944 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:52,945 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:52,945 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:52,965 INFO L321 Elim1Store]: treesize reduction 79, result has 10.2 percent of original size [2022-12-14 09:41:52,966 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 494 treesize of output 497 [2022-12-14 09:41:52,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,983 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:52,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:52,986 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:52,987 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:52,987 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:53,009 INFO L321 Elim1Store]: treesize reduction 73, result has 17.0 percent of original size [2022-12-14 09:41:53,009 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 596 treesize of output 492 [2022-12-14 09:41:53,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:53,024 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:53,025 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:53,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:53,053 INFO L321 Elim1Store]: treesize reduction 98, result has 35.1 percent of original size [2022-12-14 09:41:53,054 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 740 treesize of output 707 [2022-12-14 09:41:53,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:53,355 INFO L321 Elim1Store]: treesize reduction 338, result has 16.7 percent of original size [2022-12-14 09:41:53,355 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 19 case distinctions, treesize of input 1426 treesize of output 1403 [2022-12-14 09:41:53,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:53,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:53,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:53,915 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:53,916 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:53,916 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:53,984 INFO L321 Elim1Store]: treesize reduction 122, result has 24.2 percent of original size [2022-12-14 09:41:53,985 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 3222 treesize of output 1769 [2022-12-14 09:41:54,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:54,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:54,026 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:54,120 INFO L321 Elim1Store]: treesize reduction 336, result has 14.3 percent of original size [2022-12-14 09:41:54,121 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 19 case distinctions, treesize of input 3203 treesize of output 2630 [2022-12-14 09:41:54,188 INFO L321 Elim1Store]: treesize reduction 49, result has 12.5 percent of original size [2022-12-14 09:41:54,188 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 6 case distinctions, treesize of input 3066 treesize of output 2827 [2022-12-14 09:41:54,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:54,763 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:54,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:54,765 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:54,766 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:54,766 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:54,854 INFO L321 Elim1Store]: treesize reduction 142, result has 15.0 percent of original size [2022-12-14 09:41:54,854 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 22 case distinctions, treesize of input 3225 treesize of output 1764 [2022-12-14 09:41:54,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:54,901 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:54,902 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:54,984 INFO L321 Elim1Store]: treesize reduction 388, result has 8.5 percent of original size [2022-12-14 09:41:54,985 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 23 case distinctions, treesize of input 3243 treesize of output 2670 [2022-12-14 09:41:55,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:55,042 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:55,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:55,092 INFO L321 Elim1Store]: treesize reduction 100, result has 35.5 percent of original size [2022-12-14 09:41:55,093 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 7 case distinctions, treesize of input 3212 treesize of output 3004 [2022-12-14 09:41:55,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:55,271 INFO L321 Elim1Store]: treesize reduction 458, result has 14.4 percent of original size [2022-12-14 09:41:55,272 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 26 case distinctions, treesize of input 3144 treesize of output 3054 [2022-12-14 09:41:57,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:57,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:57,503 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:57,504 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:57,504 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:57,594 INFO L321 Elim1Store]: treesize reduction 170, result has 21.3 percent of original size [2022-12-14 09:41:57,595 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 25 case distinctions, treesize of input 11524 treesize of output 6264 [2022-12-14 09:41:57,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:57,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:57,701 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:57,820 INFO L321 Elim1Store]: treesize reduction 400, result has 12.3 percent of original size [2022-12-14 09:41:57,821 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 25 case distinctions, treesize of input 11505 treesize of output 9491 [2022-12-14 09:41:57,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:57,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:41:57,964 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:41:57,982 INFO L321 Elim1Store]: treesize reduction 85, result has 7.6 percent of original size [2022-12-14 09:41:57,982 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 11381 treesize of output 10603 [2022-12-14 09:42:02,029 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:42:02,032 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 09:42:02,035 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:42:02,052 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 09:42:02,053 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 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-14 09:42:02,058 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-14 09:42:02,066 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:42:02,071 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-14 09:42:02,077 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:42:02,087 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:42:02,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:02,092 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2022-12-14 09:42:02,112 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 09:42:02,112 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-12-14 09:42:02,119 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2022-12-14 09:42:02,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:02,127 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 09:42:02,138 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 09:42:02,144 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 18 [2022-12-14 09:42:02,152 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 09:42:02,160 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:42:02,163 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 09:42:02,166 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:42:02,701 INFO L321 Elim1Store]: treesize reduction 46, result has 37.8 percent of original size [2022-12-14 09:42:02,701 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 125 treesize of output 145 [2022-12-14 09:42:02,752 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 09:42:02,752 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 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-14 09:42:02,885 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-12-14 09:42:02,885 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 233 treesize of output 220 [2022-12-14 09:42:02,902 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-12-14 09:42:02,902 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 221 treesize of output 230 [2022-12-14 09:42:02,961 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:42:02,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:03,044 INFO L321 Elim1Store]: treesize reduction 70, result has 28.6 percent of original size [2022-12-14 09:42:03,045 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 8 case distinctions, treesize of input 330 treesize of output 343 [2022-12-14 09:42:03,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:03,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:03,057 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 311 treesize of output 297 [2022-12-14 09:42:03,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:03,090 INFO L321 Elim1Store]: treesize reduction 39, result has 30.4 percent of original size [2022-12-14 09:42:03,090 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 324 treesize of output 319 [2022-12-14 09:42:03,336 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 09:42:03,336 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-12-14 09:42:03,373 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 09:42:03,373 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-12-14 09:42:03,411 INFO L321 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2022-12-14 09:42:03,411 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 1 [2022-12-14 09:42:03,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:03,438 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 09:42:03,459 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:42:05,328 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '21265#(and (<= 0 |#NULL.base|) (<= 0 |ULTIMATE.start_main_~item~0#1.offset|) (<= 0 |ULTIMATE.start_main_~node~1#1.offset|) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_inspect_before_#in~shape#1.offset|) (<= |ULTIMATE.start_main_~item~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~data~0#1.offset|) (<= |#NULL.base| 0) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_main_~data~0#1.offset| 0) (<= |ULTIMATE.start_inspect_before_#in~shape#1.offset| 0) (<= 0 |#StackHeapBarrier|) (or (not (<= 0 (+ 4 |ULTIMATE.start_inspect_before_~shape#1.offset|))) (not (<= (+ 8 |ULTIMATE.start_inspect_before_~shape#1.offset|) (select |#length| |ULTIMATE.start_inspect_before_~shape#1.base|)))) (<= |ULTIMATE.start_main_~node~1#1.offset| 0))' at error location [2022-12-14 09:42:05,328 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 09:42:05,328 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:42:05,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 10] total 28 [2022-12-14 09:42:05,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593942996] [2022-12-14 09:42:05,329 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 09:42:05,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-12-14 09:42:05,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:42:05,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-12-14 09:42:05,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=220, Invalid=1942, Unknown=0, NotChecked=0, Total=2162 [2022-12-14 09:42:05,330 INFO L87 Difference]: Start difference. First operand 272 states and 310 transitions. Second operand has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:42:07,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:42:07,904 INFO L93 Difference]: Finished difference Result 856 states and 954 transitions. [2022-12-14 09:42:07,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-12-14 09:42:07,904 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-12-14 09:42:07,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:42:07,906 INFO L225 Difference]: With dead ends: 856 [2022-12-14 09:42:07,906 INFO L226 Difference]: Without dead ends: 856 [2022-12-14 09:42:07,908 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 67 SyntacticMatches, 1 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2042 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=1039, Invalid=5767, Unknown=0, NotChecked=0, Total=6806 [2022-12-14 09:42:07,908 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 3658 mSDsluCounter, 1327 mSDsCounter, 0 mSdLazyCounter, 2303 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3660 SdHoareTripleChecker+Valid, 1479 SdHoareTripleChecker+Invalid, 2414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 2303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-14 09:42:07,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3660 Valid, 1479 Invalid, 2414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 2303 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-14 09:42:07,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states. [2022-12-14 09:42:07,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 288. [2022-12-14 09:42:07,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 195 states have (on average 1.6205128205128205) internal successors, (316), 285 states have internal predecessors, (316), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:42:07,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 330 transitions. [2022-12-14 09:42:07,915 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 330 transitions. Word has length 34 [2022-12-14 09:42:07,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:42:07,915 INFO L495 AbstractCegarLoop]: Abstraction has 288 states and 330 transitions. [2022-12-14 09:42:07,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:42:07,915 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 330 transitions. [2022-12-14 09:42:07,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-12-14 09:42:07,916 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:42:07,916 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:42:07,921 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-14 09:42:08,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-12-14 09:42:08,117 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr37REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-12-14 09:42:08,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:42:08,118 INFO L85 PathProgramCache]: Analyzing trace with hash -767870067, now seen corresponding path program 1 times [2022-12-14 09:42:08,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:42:08,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345988847] [2022-12-14 09:42:08,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:42:08,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:42:08,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:42:08,325 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:42:08,325 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:42:08,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345988847] [2022-12-14 09:42:08,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345988847] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:42:08,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1464356049] [2022-12-14 09:42:08,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:42:08,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:42:08,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:42:08,327 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:42:08,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 09:42:08,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:42:08,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 25 conjunts are in the unsatisfiable core [2022-12-14 09:42:08,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:42:08,443 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:42:08,446 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:42:08,523 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-14 09:42:08,524 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-14 09:42:08,531 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:42:08,531 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:42:08,595 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:42:08,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1464356049] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:42:08,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1157050436] [2022-12-14 09:42:08,597 INFO L159 IcfgInterpreter]: Started Sifa with 33 locations of interest [2022-12-14 09:42:08,597 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:42:08,598 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:42:08,598 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:42:08,598 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:42:08,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:08,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:08,620 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 09:42:08,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:08,635 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-12-14 09:42:08,641 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:42:08,647 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:42:08,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:08,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:08,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:08,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:08,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:08,661 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-12-14 09:42:08,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:08,667 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 09:42:08,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:08,672 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 09:42:08,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:08,679 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 09:42:08,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:08,691 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 09:42:08,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:08,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:08,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:08,699 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 38 [2022-12-14 09:42:08,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:08,706 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 09:42:08,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:08,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:08,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:08,722 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 38 [2022-12-14 09:42:08,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:08,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:08,732 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 09:42:08,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:08,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:08,744 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 09:42:08,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:08,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:08,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:08,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:08,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:08,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:08,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:08,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:08,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:08,774 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 47 [2022-12-14 09:42:08,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:08,830 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-12-14 09:42:08,830 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 143 treesize of output 111 [2022-12-14 09:42:08,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:08,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:08,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:08,852 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 40 [2022-12-14 09:42:08,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:08,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:08,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:08,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:08,864 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2022-12-14 09:42:08,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:08,891 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:08,906 INFO L321 Elim1Store]: treesize reduction 47, result has 13.0 percent of original size [2022-12-14 09:42:08,906 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 177 treesize of output 129 [2022-12-14 09:42:08,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:08,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:08,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:08,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:08,921 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 45 [2022-12-14 09:42:08,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:08,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:08,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:08,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:08,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:08,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:08,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:08,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:08,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:08,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:08,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:08,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:08,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:08,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:08,944 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 55 [2022-12-14 09:42:08,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:08,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:08,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:08,960 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 49 [2022-12-14 09:42:09,031 INFO L321 Elim1Store]: treesize reduction 72, result has 23.4 percent of original size [2022-12-14 09:42:09,031 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 169 treesize of output 136 [2022-12-14 09:42:09,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:09,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:09,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:09,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:09,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:09,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:09,054 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 57 [2022-12-14 09:42:09,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:09,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:09,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:09,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:09,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:09,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:09,071 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 52 [2022-12-14 09:42:09,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:09,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:09,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:09,120 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:09,120 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:09,121 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:09,137 INFO L321 Elim1Store]: treesize reduction 65, result has 9.7 percent of original size [2022-12-14 09:42:09,137 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 483 treesize of output 445 [2022-12-14 09:42:09,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:09,148 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:09,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:09,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:09,150 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:09,151 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:09,165 INFO L321 Elim1Store]: treesize reduction 131, result has 9.0 percent of original size [2022-12-14 09:42:09,165 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 621 treesize of output 624 [2022-12-14 09:42:09,184 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:09,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:09,185 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:09,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:09,206 INFO L321 Elim1Store]: treesize reduction 80, result has 33.9 percent of original size [2022-12-14 09:42:09,206 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 639 treesize of output 606 [2022-12-14 09:42:09,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:09,723 INFO L321 Elim1Store]: treesize reduction 296, result has 15.9 percent of original size [2022-12-14 09:42:09,723 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 19 case distinctions, treesize of input 1230 treesize of output 1211 [2022-12-14 09:42:10,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:10,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:10,081 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:10,082 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:10,132 INFO L321 Elim1Store]: treesize reduction 116, result has 22.1 percent of original size [2022-12-14 09:42:10,132 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 1462 treesize of output 893 [2022-12-14 09:42:10,174 INFO L321 Elim1Store]: treesize reduction 43, result has 14.0 percent of original size [2022-12-14 09:42:10,175 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 6 case distinctions, treesize of input 1438 treesize of output 1341 [2022-12-14 09:42:10,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:10,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:10,194 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:10,195 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:10,250 INFO L321 Elim1Store]: treesize reduction 232, result has 21.4 percent of original size [2022-12-14 09:42:10,250 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 17 case distinctions, treesize of input 1452 treesize of output 1380 [2022-12-14 09:42:10,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:10,534 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:10,534 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:10,535 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:10,583 INFO L321 Elim1Store]: treesize reduction 134, result has 11.3 percent of original size [2022-12-14 09:42:10,583 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 22 case distinctions, treesize of input 1533 treesize of output 908 [2022-12-14 09:42:10,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:10,752 INFO L321 Elim1Store]: treesize reduction 410, result has 13.7 percent of original size [2022-12-14 09:42:10,753 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 26 case distinctions, treesize of input 1532 treesize of output 1506 [2022-12-14 09:42:10,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:10,787 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:10,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:10,833 INFO L321 Elim1Store]: treesize reduction 82, result has 34.4 percent of original size [2022-12-14 09:42:10,834 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 7 case distinctions, treesize of input 1496 treesize of output 1424 [2022-12-14 09:42:10,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:10,866 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:10,867 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:10,867 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:10,909 INFO L321 Elim1Store]: treesize reduction 238, result has 8.8 percent of original size [2022-12-14 09:42:10,909 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 1499 treesize of output 1401 [2022-12-14 09:42:12,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:12,072 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:12,072 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:12,172 INFO L321 Elim1Store]: treesize reduction 164, result has 19.6 percent of original size [2022-12-14 09:42:12,172 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 25 case distinctions, treesize of input 6103 treesize of output 3625 [2022-12-14 09:42:12,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:12,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:12,246 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:12,267 INFO L321 Elim1Store]: treesize reduction 73, result has 8.8 percent of original size [2022-12-14 09:42:12,267 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 6064 treesize of output 5648 [2022-12-14 09:42:12,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:12,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:12,336 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:12,337 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:12,410 INFO L321 Elim1Store]: treesize reduction 284, result has 18.2 percent of original size [2022-12-14 09:42:12,411 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 23 case distinctions, treesize of input 6065 treesize of output 5632 [2022-12-14 09:42:13,285 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:42:13,288 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 09:42:13,291 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:42:13,306 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 09:42:13,306 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 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-14 09:42:13,310 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-14 09:42:13,317 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-14 09:42:13,322 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:42:13,326 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:42:13,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:13,337 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 09:42:13,340 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:42:13,359 INFO L321 Elim1Store]: treesize reduction 24, result has 38.5 percent of original size [2022-12-14 09:42:13,359 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 31 [2022-12-14 09:42:13,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:13,366 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-12-14 09:42:13,389 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 09:42:13,389 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-12-14 09:42:13,400 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-12-14 09:42:13,407 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 09:42:13,412 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 18 [2022-12-14 09:42:13,423 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 09:42:13,425 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:42:13,428 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:42:13,649 INFO L321 Elim1Store]: treesize reduction 46, result has 37.8 percent of original size [2022-12-14 09:42:13,649 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 125 treesize of output 145 [2022-12-14 09:42:13,737 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 09:42:13,737 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 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-14 09:42:13,767 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-12-14 09:42:13,767 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 2 case distinctions, treesize of input 17 treesize of output 1 [2022-12-14 09:42:13,890 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-12-14 09:42:13,890 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 351 treesize of output 360 [2022-12-14 09:42:13,904 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-12-14 09:42:13,905 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 349 treesize of output 320 [2022-12-14 09:42:13,982 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:42:14,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:14,030 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 09:42:14,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:14,080 INFO L321 Elim1Store]: treesize reduction 70, result has 28.6 percent of original size [2022-12-14 09:42:14,080 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 8 case distinctions, treesize of input 539 treesize of output 546 [2022-12-14 09:42:14,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:14,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:14,093 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 514 treesize of output 484 [2022-12-14 09:42:14,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:14,122 INFO L321 Elim1Store]: treesize reduction 39, result has 30.4 percent of original size [2022-12-14 09:42:14,122 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 527 treesize of output 516 [2022-12-14 09:42:14,586 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 09:42:14,586 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-12-14 09:42:14,604 INFO L321 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2022-12-14 09:42:14,605 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 1 [2022-12-14 09:42:14,624 INFO L321 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2022-12-14 09:42:14,625 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 1 [2022-12-14 09:42:14,632 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2022-12-14 09:42:14,706 INFO L321 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2022-12-14 09:42:14,706 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 1 [2022-12-14 09:42:14,727 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-12-14 09:42:14,727 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 1 [2022-12-14 09:42:14,847 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:42:17,405 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '22709#(and (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|)) 0) (= |ULTIMATE.start_seq_sort_core_#in~data#1.base| |ULTIMATE.start_seq_sort_core_~data#1.base|) (= |ULTIMATE.start_main_~data~0#1.base| |ULTIMATE.start_seq_sort_core_#in~data#1.base|) (<= 0 |#NULL.base|) (<= |ULTIMATE.start_inspect_before_~shape#1.offset| 0) (<= 0 |ULTIMATE.start_inspect_before_~shape#1.offset|) (= (select |#valid| |ULTIMATE.start_inspect_before_~shape#1.base|) 1) (not (= |ULTIMATE.start_seq_sort_core_~data#1.base| 0)) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_seq_sort_core_~data#1.base|) |ULTIMATE.start_seq_sort_core_~data#1.offset|) |ULTIMATE.start_seq_sort_core_#t~mem18#1.base|) (<= (+ 4 |ULTIMATE.start_inspect_before_~shape#1.offset|) (select |#length| |ULTIMATE.start_inspect_before_~shape#1.base|)) (= (select |#valid| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|)) 1) (= |ULTIMATE.start_seq_sort_core_#in~data#1.offset| |ULTIMATE.start_main_~data~0#1.offset|) (= |ULTIMATE.start_seq_sort_core_~dst~0#1.base| 0) (<= 0 |ULTIMATE.start_main_~item~0#1.offset|) (<= 0 |ULTIMATE.start_main_~node~1#1.offset|) (<= |#NULL.offset| 0) (or (not (<= (+ |ULTIMATE.start_seq_sort_core_~next~0#1.offset| 4) (select |#length| |ULTIMATE.start_seq_sort_core_~next~0#1.base|))) (not (<= 0 |ULTIMATE.start_seq_sort_core_~next~0#1.offset|))) (<= 0 |ULTIMATE.start_inspect_before_#in~shape#1.offset|) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|)) 0) (= (select |#valid| |ULTIMATE.start_main_~data~0#1.base|) 1) (= |ULTIMATE.start_seq_sort_core_#t~mem18#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_seq_sort_core_~data#1.base|) |ULTIMATE.start_seq_sort_core_~data#1.offset|)) (<= (+ |ULTIMATE.start_seq_sort_core_~data#1.offset| 8) (select |#length| |ULTIMATE.start_seq_sort_core_~data#1.base|)) (<= |ULTIMATE.start_main_~item~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_seq_sort_core_~data#1.base|) (+ |ULTIMATE.start_seq_sort_core_~data#1.offset| 4)) |ULTIMATE.start_seq_sort_core_~next~0#1.offset|) (or (not (= |ULTIMATE.start_seq_sort_core_~next~0#1.base| 0)) (not (= |ULTIMATE.start_seq_sort_core_~next~0#1.offset| 0))) (<= 0 |ULTIMATE.start_main_~data~0#1.offset|) (<= |#NULL.base| 0) (= |ULTIMATE.start_seq_sort_core_~dst~0#1.offset| 0) (= |ULTIMATE.start_seq_sort_core_~data#1.offset| |ULTIMATE.start_seq_sort_core_#in~data#1.offset|) (<= 0 (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|)) (= |ULTIMATE.start_seq_sort_core_~next~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_seq_sort_core_~data#1.base|) (+ |ULTIMATE.start_seq_sort_core_~data#1.offset| 4))) (<= (+ (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|) 4) (select |#length| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|))) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_main_~data~0#1.offset| 0) (<= |ULTIMATE.start_inspect_before_#in~shape#1.offset| 0) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~node~1#1.offset| 0))' at error location [2022-12-14 09:42:17,405 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 09:42:17,405 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:42:17,405 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 4] total 9 [2022-12-14 09:42:17,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536330587] [2022-12-14 09:42:17,405 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 09:42:17,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-14 09:42:17,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:42:17,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-14 09:42:17,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=741, Unknown=0, NotChecked=0, Total=870 [2022-12-14 09:42:17,406 INFO L87 Difference]: Start difference. First operand 288 states and 330 transitions. Second operand has 10 states, 10 states have (on average 6.4) internal successors, (64), 9 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:42:17,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:42:17,596 INFO L93 Difference]: Finished difference Result 349 states and 395 transitions. [2022-12-14 09:42:17,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 09:42:17,596 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.4) internal successors, (64), 9 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-12-14 09:42:17,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:42:17,597 INFO L225 Difference]: With dead ends: 349 [2022-12-14 09:42:17,597 INFO L226 Difference]: Without dead ends: 349 [2022-12-14 09:42:17,598 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 76 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=135, Invalid=795, Unknown=0, NotChecked=0, Total=930 [2022-12-14 09:42:17,598 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 97 mSDsluCounter, 837 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 1011 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 09:42:17,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 1011 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 09:42:17,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2022-12-14 09:42:17,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 303. [2022-12-14 09:42:17,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 210 states have (on average 1.5761904761904761) internal successors, (331), 300 states have internal predecessors, (331), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:42:17,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 345 transitions. [2022-12-14 09:42:17,603 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 345 transitions. Word has length 34 [2022-12-14 09:42:17,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:42:17,603 INFO L495 AbstractCegarLoop]: Abstraction has 303 states and 345 transitions. [2022-12-14 09:42:17,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.4) internal successors, (64), 9 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:42:17,604 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 345 transitions. [2022-12-14 09:42:17,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-12-14 09:42:17,604 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:42:17,604 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:42:17,609 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 09:42:17,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:42:17,805 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-12-14 09:42:17,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:42:17,805 INFO L85 PathProgramCache]: Analyzing trace with hash 1583015888, now seen corresponding path program 1 times [2022-12-14 09:42:17,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:42:17,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033569947] [2022-12-14 09:42:17,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:42:17,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:42:17,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:42:18,132 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:42:18,132 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:42:18,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033569947] [2022-12-14 09:42:18,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033569947] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:42:18,132 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:42:18,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-14 09:42:18,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953979844] [2022-12-14 09:42:18,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:42:18,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 09:42:18,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:42:18,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 09:42:18,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2022-12-14 09:42:18,133 INFO L87 Difference]: Start difference. First operand 303 states and 345 transitions. Second operand has 13 states, 13 states have (on average 2.6923076923076925) internal successors, (35), 12 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:42:18,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:42:18,492 INFO L93 Difference]: Finished difference Result 458 states and 508 transitions. [2022-12-14 09:42:18,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-14 09:42:18,492 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.6923076923076925) internal successors, (35), 12 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2022-12-14 09:42:18,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:42:18,493 INFO L225 Difference]: With dead ends: 458 [2022-12-14 09:42:18,493 INFO L226 Difference]: Without dead ends: 458 [2022-12-14 09:42:18,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=109, Invalid=233, Unknown=0, NotChecked=0, Total=342 [2022-12-14 09:42:18,493 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 562 mSDsluCounter, 1188 mSDsCounter, 0 mSdLazyCounter, 562 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 564 SdHoareTripleChecker+Valid, 1357 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 09:42:18,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [564 Valid, 1357 Invalid, 566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 562 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 09:42:18,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2022-12-14 09:42:18,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 312. [2022-12-14 09:42:18,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 219 states have (on average 1.5570776255707763) internal successors, (341), 309 states have internal predecessors, (341), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:42:18,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 355 transitions. [2022-12-14 09:42:18,499 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 355 transitions. Word has length 36 [2022-12-14 09:42:18,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:42:18,499 INFO L495 AbstractCegarLoop]: Abstraction has 312 states and 355 transitions. [2022-12-14 09:42:18,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.6923076923076925) internal successors, (35), 12 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:42:18,499 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 355 transitions. [2022-12-14 09:42:18,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-12-14 09:42:18,500 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:42:18,500 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2022-12-14 09:42:18,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-12-14 09:42:18,500 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-12-14 09:42:18,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:42:18,500 INFO L85 PathProgramCache]: Analyzing trace with hash -268978756, now seen corresponding path program 1 times [2022-12-14 09:42:18,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:42:18,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947656476] [2022-12-14 09:42:18,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:42:18,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:42:18,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:42:18,633 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 09:42:18,634 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:42:18,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947656476] [2022-12-14 09:42:18,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947656476] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:42:18,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [546333104] [2022-12-14 09:42:18,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:42:18,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:42:18,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:42:18,635 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:42:18,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 09:42:18,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:42:18,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-14 09:42:18,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:42:18,815 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-12-14 09:42:18,816 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2022-12-14 09:42:18,831 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 09:42:18,831 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:42:18,892 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 09:42:18,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [546333104] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:42:18,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1121922047] [2022-12-14 09:42:18,894 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2022-12-14 09:42:18,894 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:42:18,895 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:42:18,895 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:42:18,895 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:42:18,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:18,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:18,927 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 09:42:18,939 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:42:18,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:18,946 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-12-14 09:42:18,953 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:42:18,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:18,970 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 09:42:18,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:18,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:18,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:18,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:18,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:18,982 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-12-14 09:42:18,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:18,990 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 09:42:18,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:18,997 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 09:42:19,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,018 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 09:42:19,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,025 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 09:42:19,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,034 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 38 [2022-12-14 09:42:19,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,056 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 38 [2022-12-14 09:42:19,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,066 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 09:42:19,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,077 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 09:42:19,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,108 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 47 [2022-12-14 09:42:19,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,151 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-12-14 09:42:19,151 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 143 treesize of output 111 [2022-12-14 09:42:19,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,166 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2022-12-14 09:42:19,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,179 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 40 [2022-12-14 09:42:19,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,216 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:19,230 INFO L321 Elim1Store]: treesize reduction 49, result has 15.5 percent of original size [2022-12-14 09:42:19,230 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 179 treesize of output 131 [2022-12-14 09:42:19,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,248 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 47 [2022-12-14 09:42:19,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,261 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 49 [2022-12-14 09:42:19,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,287 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 55 [2022-12-14 09:42:19,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,345 INFO L321 Elim1Store]: treesize reduction 72, result has 23.4 percent of original size [2022-12-14 09:42:19,345 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 171 treesize of output 138 [2022-12-14 09:42:19,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,363 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 57 [2022-12-14 09:42:19,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,381 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2022-12-14 09:42:19,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,440 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:19,440 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:19,441 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:19,441 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:19,455 INFO L321 Elim1Store]: treesize reduction 67, result has 11.8 percent of original size [2022-12-14 09:42:19,455 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 480 treesize of output 442 [2022-12-14 09:42:19,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,468 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:19,468 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:19,469 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:19,469 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:19,483 INFO L321 Elim1Store]: treesize reduction 133, result has 10.1 percent of original size [2022-12-14 09:42:19,484 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 618 treesize of output 621 [2022-12-14 09:42:19,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,495 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:19,496 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:19,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,519 INFO L321 Elim1Store]: treesize reduction 98, result has 35.1 percent of original size [2022-12-14 09:42:19,520 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 726 treesize of output 693 [2022-12-14 09:42:19,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:19,823 INFO L321 Elim1Store]: treesize reduction 338, result has 16.7 percent of original size [2022-12-14 09:42:19,824 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 19 case distinctions, treesize of input 1398 treesize of output 1383 [2022-12-14 09:42:20,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:20,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:20,273 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:20,273 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:20,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:20,276 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:20,336 INFO L321 Elim1Store]: treesize reduction 214, result has 16.7 percent of original size [2022-12-14 09:42:20,337 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 2541 treesize of output 1444 [2022-12-14 09:42:20,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:20,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:20,366 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:20,442 INFO L321 Elim1Store]: treesize reduction 370, result has 13.1 percent of original size [2022-12-14 09:42:20,442 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 10 new quantified variables, introduced 19 case distinctions, treesize of input 2542 treesize of output 2032 [2022-12-14 09:42:20,506 INFO L321 Elim1Store]: treesize reduction 158, result has 13.7 percent of original size [2022-12-14 09:42:20,506 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 7 case distinctions, treesize of input 2425 treesize of output 2208 [2022-12-14 09:42:21,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:21,761 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:21,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:21,763 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:21,766 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:21,766 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:21,846 INFO L321 Elim1Store]: treesize reduction 268, result has 11.8 percent of original size [2022-12-14 09:42:21,847 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 23 case distinctions, treesize of input 8796 treesize of output 4739 [2022-12-14 09:42:21,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:21,929 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:21,930 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:22,037 INFO L321 Elim1Store]: treesize reduction 464, result has 9.2 percent of original size [2022-12-14 09:42:22,038 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 11 new quantified variables, introduced 24 case distinctions, treesize of input 8814 treesize of output 6852 [2022-12-14 09:42:22,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:22,139 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:22,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:22,205 INFO L321 Elim1Store]: treesize reduction 174, result has 26.0 percent of original size [2022-12-14 09:42:22,206 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 7 case distinctions, treesize of input 8783 treesize of output 7973 [2022-12-14 09:42:22,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:22,497 INFO L321 Elim1Store]: treesize reduction 458, result has 14.4 percent of original size [2022-12-14 09:42:22,497 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 26 case distinctions, treesize of input 8635 treesize of output 8283 [2022-12-14 09:42:28,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:28,214 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:28,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:28,219 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:28,220 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:28,367 INFO L321 Elim1Store]: treesize reduction 270, result has 15.6 percent of original size [2022-12-14 09:42:28,368 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 25 case distinctions, treesize of input 30531 treesize of output 16433 [2022-12-14 09:42:28,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:28,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:28,644 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:28,819 INFO L321 Elim1Store]: treesize reduction 438, result has 11.3 percent of original size [2022-12-14 09:42:28,819 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 11 new quantified variables, introduced 25 case distinctions, treesize of input 30212 treesize of output 23719 [2022-12-14 09:42:29,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:29,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:29,153 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:29,191 INFO L321 Elim1Store]: treesize reduction 202, result has 11.0 percent of original size [2022-12-14 09:42:29,191 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 29788 treesize of output 27204 [2022-12-14 09:42:38,518 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 09:42:38,522 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:42:38,525 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:42:38,542 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 09:42:38,542 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-12-14 09:42:38,559 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 09:42:38,559 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 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-14 09:42:38,570 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:42:38,575 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-14 09:42:38,581 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:42:38,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:38,592 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 09:42:38,611 INFO L321 Elim1Store]: treesize reduction 24, result has 38.5 percent of original size [2022-12-14 09:42:38,611 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 33 [2022-12-14 09:42:38,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:38,619 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2022-12-14 09:42:38,625 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:42:38,649 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 09:42:38,649 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-12-14 09:42:38,659 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 09:42:38,665 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 18 [2022-12-14 09:42:38,671 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 09:42:38,679 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:42:38,682 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:42:38,684 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 09:42:39,373 INFO L321 Elim1Store]: treesize reduction 46, result has 37.8 percent of original size [2022-12-14 09:42:39,373 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 125 treesize of output 145 [2022-12-14 09:42:39,457 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 09:42:39,457 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 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-14 09:42:39,480 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-12-14 09:42:39,481 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 2 case distinctions, treesize of input 17 treesize of output 1 [2022-12-14 09:42:39,568 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:42:39,588 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-12-14 09:42:39,588 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 351 treesize of output 360 [2022-12-14 09:42:39,603 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-12-14 09:42:39,603 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 349 treesize of output 320 [2022-12-14 09:42:39,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:39,711 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 09:42:39,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:39,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:39,725 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 414 treesize of output 388 [2022-12-14 09:42:39,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:39,782 INFO L321 Elim1Store]: treesize reduction 70, result has 28.6 percent of original size [2022-12-14 09:42:39,782 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 8 case distinctions, treesize of input 419 treesize of output 430 [2022-12-14 09:42:39,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:39,812 INFO L321 Elim1Store]: treesize reduction 39, result has 30.4 percent of original size [2022-12-14 09:42:39,812 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 411 treesize of output 406 [2022-12-14 09:42:40,092 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 09:42:40,092 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-12-14 09:42:40,126 INFO L197 IcfgInterpreter]: Interpreting procedure fail with input of size 10 for LOIs [2022-12-14 09:42:40,127 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:42:41,509 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '24412#(and (<= 0 |#NULL.base|) (<= |#NULL.offset| 0) (<= |#NULL.base| 0) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|))' at error location [2022-12-14 09:42:41,509 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 09:42:41,509 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:42:41,509 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 12 [2022-12-14 09:42:41,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493982308] [2022-12-14 09:42:41,509 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 09:42:41,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 09:42:41,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:42:41,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 09:42:41,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=781, Unknown=0, NotChecked=0, Total=930 [2022-12-14 09:42:41,510 INFO L87 Difference]: Start difference. First operand 312 states and 355 transitions. Second operand has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:42:41,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:42:41,714 INFO L93 Difference]: Finished difference Result 310 states and 349 transitions. [2022-12-14 09:42:41,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 09:42:41,714 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2022-12-14 09:42:41,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:42:41,716 INFO L225 Difference]: With dead ends: 310 [2022-12-14 09:42:41,716 INFO L226 Difference]: Without dead ends: 310 [2022-12-14 09:42:41,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 94 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 343 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=193, Invalid=997, Unknown=0, NotChecked=0, Total=1190 [2022-12-14 09:42:41,717 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 1205 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1205 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 09:42:41,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1205 Valid, 368 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 09:42:41,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2022-12-14 09:42:41,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 310. [2022-12-14 09:42:41,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 219 states have (on average 1.538812785388128) internal successors, (337), 307 states have internal predecessors, (337), 10 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:42:41,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 349 transitions. [2022-12-14 09:42:41,722 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 349 transitions. Word has length 38 [2022-12-14 09:42:41,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:42:41,723 INFO L495 AbstractCegarLoop]: Abstraction has 310 states and 349 transitions. [2022-12-14 09:42:41,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:42:41,723 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 349 transitions. [2022-12-14 09:42:41,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-12-14 09:42:41,723 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:42:41,723 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:42:41,728 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-14 09:42:41,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:42:41,925 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-12-14 09:42:41,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:42:41,926 INFO L85 PathProgramCache]: Analyzing trace with hash 866023571, now seen corresponding path program 1 times [2022-12-14 09:42:41,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:42:41,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518444751] [2022-12-14 09:42:41,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:42:41,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:42:41,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:42:42,054 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:42:42,054 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:42:42,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518444751] [2022-12-14 09:42:42,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518444751] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:42:42,055 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:42:42,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-14 09:42:42,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503655602] [2022-12-14 09:42:42,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:42:42,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 09:42:42,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:42:42,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 09:42:42,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 09:42:42,056 INFO L87 Difference]: Start difference. First operand 310 states and 349 transitions. Second operand has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:42:42,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:42:42,264 INFO L93 Difference]: Finished difference Result 387 states and 422 transitions. [2022-12-14 09:42:42,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-14 09:42:42,265 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-12-14 09:42:42,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:42:42,265 INFO L225 Difference]: With dead ends: 387 [2022-12-14 09:42:42,265 INFO L226 Difference]: Without dead ends: 387 [2022-12-14 09:42:42,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2022-12-14 09:42:42,266 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 768 mSDsluCounter, 641 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 770 SdHoareTripleChecker+Valid, 803 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 09:42:42,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [770 Valid, 803 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 09:42:42,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2022-12-14 09:42:42,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 310. [2022-12-14 09:42:42,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 219 states have (on average 1.5342465753424657) internal successors, (336), 307 states have internal predecessors, (336), 10 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:42:42,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 348 transitions. [2022-12-14 09:42:42,269 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 348 transitions. Word has length 39 [2022-12-14 09:42:42,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:42:42,269 INFO L495 AbstractCegarLoop]: Abstraction has 310 states and 348 transitions. [2022-12-14 09:42:42,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:42:42,269 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 348 transitions. [2022-12-14 09:42:42,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-12-14 09:42:42,269 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:42:42,270 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2022-12-14 09:42:42,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-12-14 09:42:42,270 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr37REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-12-14 09:42:42,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:42:42,270 INFO L85 PathProgramCache]: Analyzing trace with hash -543981640, now seen corresponding path program 2 times [2022-12-14 09:42:42,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:42:42,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085545579] [2022-12-14 09:42:42,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:42:42,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:42:42,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:42:42,534 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 09:42:42,534 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:42:42,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085545579] [2022-12-14 09:42:42,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085545579] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:42:42,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1944020127] [2022-12-14 09:42:42,534 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 09:42:42,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:42:42,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:42:42,535 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:42:42,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-14 09:42:42,632 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-12-14 09:42:42,632 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 09:42:42,633 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 21 conjunts are in the unsatisfiable core [2022-12-14 09:42:42,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:42:42,712 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-14 09:42:42,715 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-14 09:42:42,722 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 09:42:42,723 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 09:42:42,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1944020127] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:42:42,723 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 09:42:42,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2022-12-14 09:42:42,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082496271] [2022-12-14 09:42:42,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:42:42,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 09:42:42,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:42:42,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 09:42:42,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-12-14 09:42:42,724 INFO L87 Difference]: Start difference. First operand 310 states and 348 transitions. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:42:42,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:42:42,937 INFO L93 Difference]: Finished difference Result 347 states and 386 transitions. [2022-12-14 09:42:42,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:42:42,937 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2022-12-14 09:42:42,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:42:42,938 INFO L225 Difference]: With dead ends: 347 [2022-12-14 09:42:42,938 INFO L226 Difference]: Without dead ends: 347 [2022-12-14 09:42:42,938 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2022-12-14 09:42:42,938 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 118 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 780 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 09:42:42,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 780 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 09:42:42,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2022-12-14 09:42:42,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 295. [2022-12-14 09:42:42,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 204 states have (on average 1.5686274509803921) internal successors, (320), 292 states have internal predecessors, (320), 10 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:42:42,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 332 transitions. [2022-12-14 09:42:42,941 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 332 transitions. Word has length 40 [2022-12-14 09:42:42,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:42:42,941 INFO L495 AbstractCegarLoop]: Abstraction has 295 states and 332 transitions. [2022-12-14 09:42:42,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:42:42,941 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 332 transitions. [2022-12-14 09:42:42,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-12-14 09:42:42,942 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:42:42,942 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:42:42,946 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-14 09:42:43,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2022-12-14 09:42:43,144 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr73REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-12-14 09:42:43,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:42:43,145 INFO L85 PathProgramCache]: Analyzing trace with hash -975101704, now seen corresponding path program 1 times [2022-12-14 09:42:43,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:42:43,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702076207] [2022-12-14 09:42:43,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:42:43,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:42:43,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:42:43,250 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 09:42:43,250 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:42:43,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702076207] [2022-12-14 09:42:43,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702076207] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:42:43,251 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:42:43,251 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 09:42:43,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535471929] [2022-12-14 09:42:43,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:42:43,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 09:42:43,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:42:43,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 09:42:43,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-14 09:42:43,251 INFO L87 Difference]: Start difference. First operand 295 states and 332 transitions. Second operand has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 7 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:42:43,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:42:43,527 INFO L93 Difference]: Finished difference Result 330 states and 367 transitions. [2022-12-14 09:42:43,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 09:42:43,527 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 7 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2022-12-14 09:42:43,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:42:43,529 INFO L225 Difference]: With dead ends: 330 [2022-12-14 09:42:43,529 INFO L226 Difference]: Without dead ends: 330 [2022-12-14 09:42:43,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-12-14 09:42:43,530 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 144 mSDsluCounter, 628 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 787 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 09:42:43,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 787 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 09:42:43,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2022-12-14 09:42:43,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 300. [2022-12-14 09:42:43,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 211 states have (on average 1.5355450236966826) internal successors, (324), 297 states have internal predecessors, (324), 10 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:42:43,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 336 transitions. [2022-12-14 09:42:43,533 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 336 transitions. Word has length 41 [2022-12-14 09:42:43,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:42:43,533 INFO L495 AbstractCegarLoop]: Abstraction has 300 states and 336 transitions. [2022-12-14 09:42:43,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 7 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:42:43,533 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 336 transitions. [2022-12-14 09:42:43,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-12-14 09:42:43,534 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:42:43,534 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:42:43,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-12-14 09:42:43,534 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr74REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-12-14 09:42:43,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:42:43,534 INFO L85 PathProgramCache]: Analyzing trace with hash -975101703, now seen corresponding path program 1 times [2022-12-14 09:42:43,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:42:43,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990223662] [2022-12-14 09:42:43,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:42:43,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:42:43,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:42:43,719 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:42:43,719 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:42:43,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990223662] [2022-12-14 09:42:43,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990223662] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:42:43,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:42:43,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-14 09:42:43,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795287350] [2022-12-14 09:42:43,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:42:43,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-14 09:42:43,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:42:43,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-14 09:42:43,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-12-14 09:42:43,720 INFO L87 Difference]: Start difference. First operand 300 states and 336 transitions. Second operand has 10 states, 9 states have (on average 4.555555555555555) internal successors, (41), 10 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:42:44,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:42:44,153 INFO L93 Difference]: Finished difference Result 380 states and 415 transitions. [2022-12-14 09:42:44,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-14 09:42:44,154 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.555555555555555) internal successors, (41), 10 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2022-12-14 09:42:44,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:42:44,154 INFO L225 Difference]: With dead ends: 380 [2022-12-14 09:42:44,154 INFO L226 Difference]: Without dead ends: 380 [2022-12-14 09:42:44,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2022-12-14 09:42:44,155 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 950 mSDsluCounter, 655 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 952 SdHoareTripleChecker+Valid, 810 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 09:42:44,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [952 Valid, 810 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 532 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 09:42:44,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2022-12-14 09:42:44,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 303. [2022-12-14 09:42:44,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 214 states have (on average 1.52803738317757) internal successors, (327), 300 states have internal predecessors, (327), 10 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:42:44,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 339 transitions. [2022-12-14 09:42:44,158 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 339 transitions. Word has length 41 [2022-12-14 09:42:44,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:42:44,158 INFO L495 AbstractCegarLoop]: Abstraction has 303 states and 339 transitions. [2022-12-14 09:42:44,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.555555555555555) internal successors, (41), 10 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:42:44,158 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 339 transitions. [2022-12-14 09:42:44,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-12-14 09:42:44,159 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:42:44,159 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2022-12-14 09:42:44,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-12-14 09:42:44,159 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-12-14 09:42:44,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:42:44,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1768846581, now seen corresponding path program 1 times [2022-12-14 09:42:44,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:42:44,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911758184] [2022-12-14 09:42:44,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:42:44,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:42:44,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:42:44,628 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:42:44,628 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:42:44,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911758184] [2022-12-14 09:42:44,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911758184] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:42:44,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1587652197] [2022-12-14 09:42:44,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:42:44,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:42:44,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:42:44,630 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:42:44,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-14 09:42:44,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:42:44,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 64 conjunts are in the unsatisfiable core [2022-12-14 09:42:44,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:42:44,764 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 09:42:44,791 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:42:44,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:44,823 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2022-12-14 09:42:44,859 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-14 09:42:44,859 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-12-14 09:42:44,889 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 17 [2022-12-14 09:42:44,897 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 17 [2022-12-14 09:42:44,937 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 09:42:44,937 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 21 [2022-12-14 09:42:44,943 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-12-14 09:42:44,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:44,982 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2022-12-14 09:42:44,988 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:42:45,215 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-14 09:42:45,439 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-14 09:42:45,439 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 22 [2022-12-14 09:42:45,442 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:42:45,442 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:42:45,832 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:42:45,833 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 33 [2022-12-14 09:42:46,108 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:42:46,108 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 61 treesize of output 53 [2022-12-14 09:42:46,113 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 157 treesize of output 139 [2022-12-14 09:42:46,126 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:42:46,126 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 141 treesize of output 119 [2022-12-14 09:42:46,132 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 99 treesize of output 93 [2022-12-14 09:42:46,293 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:42:46,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1587652197] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:42:46,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [154525620] [2022-12-14 09:42:46,295 INFO L159 IcfgInterpreter]: Started Sifa with 35 locations of interest [2022-12-14 09:42:46,295 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:42:46,295 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:42:46,295 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:42:46,295 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:42:46,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,317 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 09:42:46,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,327 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-12-14 09:42:46,334 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:42:46,341 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:42:46,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,355 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 09:42:46,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,364 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-12-14 09:42:46,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,373 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 09:42:46,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,384 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 09:42:46,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,407 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 38 [2022-12-14 09:42:46,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,417 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 09:42:46,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,425 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 09:42:46,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,441 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 09:42:46,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,452 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 38 [2022-12-14 09:42:46,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,466 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 09:42:46,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,500 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 47 [2022-12-14 09:42:46,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,554 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-12-14 09:42:46,555 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 143 treesize of output 111 [2022-12-14 09:42:46,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,571 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 40 [2022-12-14 09:42:46,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,587 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2022-12-14 09:42:46,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,618 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:46,634 INFO L321 Elim1Store]: treesize reduction 47, result has 13.0 percent of original size [2022-12-14 09:42:46,634 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 177 treesize of output 129 [2022-12-14 09:42:46,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,653 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 45 [2022-12-14 09:42:46,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,668 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 49 [2022-12-14 09:42:46,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,699 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 55 [2022-12-14 09:42:46,767 INFO L321 Elim1Store]: treesize reduction 72, result has 23.4 percent of original size [2022-12-14 09:42:46,768 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 169 treesize of output 136 [2022-12-14 09:42:46,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,788 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 52 [2022-12-14 09:42:46,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,812 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 57 [2022-12-14 09:42:46,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,870 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:46,870 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:46,871 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:46,894 INFO L321 Elim1Store]: treesize reduction 65, result has 9.7 percent of original size [2022-12-14 09:42:46,894 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 483 treesize of output 445 [2022-12-14 09:42:46,909 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:46,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,911 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:46,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,938 INFO L321 Elim1Store]: treesize reduction 80, result has 33.9 percent of original size [2022-12-14 09:42:46,939 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 627 treesize of output 594 [2022-12-14 09:42:46,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,955 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:46,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:46,957 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:46,957 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:46,979 INFO L321 Elim1Store]: treesize reduction 131, result has 9.0 percent of original size [2022-12-14 09:42:46,980 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 593 treesize of output 596 [2022-12-14 09:42:47,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:47,263 INFO L321 Elim1Store]: treesize reduction 296, result has 15.9 percent of original size [2022-12-14 09:42:47,263 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 19 case distinctions, treesize of input 1230 treesize of output 1211 [2022-12-14 09:42:47,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:47,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:47,652 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:47,655 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:47,730 INFO L321 Elim1Store]: treesize reduction 194, result has 16.0 percent of original size [2022-12-14 09:42:47,731 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 1572 treesize of output 983 [2022-12-14 09:42:47,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:47,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:47,765 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:47,766 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:47,849 INFO L321 Elim1Store]: treesize reduction 292, result has 17.7 percent of original size [2022-12-14 09:42:47,849 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 17 case distinctions, treesize of input 1562 treesize of output 1421 [2022-12-14 09:42:47,914 INFO L321 Elim1Store]: treesize reduction 152, result has 14.1 percent of original size [2022-12-14 09:42:47,915 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 7 case distinctions, treesize of input 1520 treesize of output 1381 [2022-12-14 09:42:48,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:48,859 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:48,860 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:48,864 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:48,947 INFO L321 Elim1Store]: treesize reduction 246, result has 10.2 percent of original size [2022-12-14 09:42:48,947 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 23 case distinctions, treesize of input 5738 treesize of output 3453 [2022-12-14 09:42:49,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:49,021 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:49,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:49,090 INFO L321 Elim1Store]: treesize reduction 156, result has 23.9 percent of original size [2022-12-14 09:42:49,090 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 7 case distinctions, treesize of input 5725 treesize of output 5131 [2022-12-14 09:42:49,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:49,336 INFO L321 Elim1Store]: treesize reduction 410, result has 13.7 percent of original size [2022-12-14 09:42:49,336 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 26 case distinctions, treesize of input 5625 treesize of output 5377 [2022-12-14 09:42:49,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:49,426 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:49,427 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:49,428 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:49,504 INFO L321 Elim1Store]: treesize reduction 340, result has 9.1 percent of original size [2022-12-14 09:42:49,504 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 22 case distinctions, treesize of input 5620 treesize of output 4911 [2022-12-14 09:42:51,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:51,973 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:51,974 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:52,141 INFO L321 Elim1Store]: treesize reduction 250, result has 15.0 percent of original size [2022-12-14 09:42:52,141 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 25 case distinctions, treesize of input 13292 treesize of output 7932 [2022-12-14 09:42:52,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:52,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:52,282 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:52,283 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:52,406 INFO L321 Elim1Store]: treesize reduction 348, result has 15.3 percent of original size [2022-12-14 09:42:52,406 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 23 case distinctions, treesize of input 13170 treesize of output 11600 [2022-12-14 09:42:52,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:52,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:52,582 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:42:52,648 INFO L321 Elim1Store]: treesize reduction 190, result has 11.6 percent of original size [2022-12-14 09:42:52,648 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 13029 treesize of output 11795 [2022-12-14 09:42:57,430 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 09:42:57,433 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:42:57,436 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:42:57,450 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 09:42:57,450 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-12-14 09:42:57,465 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 09:42:57,466 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 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-14 09:42:57,473 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:42:57,478 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-14 09:42:57,483 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:42:57,512 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 09:42:57,512 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-12-14 09:42:57,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:57,517 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2022-12-14 09:42:57,523 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:42:57,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:57,528 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 09:42:57,534 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2022-12-14 09:42:57,544 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 09:42:57,551 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 09:42:57,557 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 18 [2022-12-14 09:42:57,564 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:42:57,567 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:42:57,570 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 09:42:58,224 INFO L321 Elim1Store]: treesize reduction 46, result has 37.8 percent of original size [2022-12-14 09:42:58,224 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 125 treesize of output 145 [2022-12-14 09:42:58,318 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 09:42:58,319 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 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-14 09:42:58,345 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-12-14 09:42:58,345 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 2 case distinctions, treesize of input 17 treesize of output 1 [2022-12-14 09:42:58,431 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:42:58,447 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-12-14 09:42:58,447 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 355 treesize of output 326 [2022-12-14 09:42:58,468 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-12-14 09:42:58,469 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 335 treesize of output 344 [2022-12-14 09:42:58,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:58,633 INFO L321 Elim1Store]: treesize reduction 39, result has 30.4 percent of original size [2022-12-14 09:42:58,633 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 667 treesize of output 656 [2022-12-14 09:42:58,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:58,702 INFO L321 Elim1Store]: treesize reduction 70, result has 28.6 percent of original size [2022-12-14 09:42:58,702 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 8 case distinctions, treesize of input 647 treesize of output 646 [2022-12-14 09:42:58,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:58,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:58,727 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 614 treesize of output 576 [2022-12-14 09:42:59,275 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2022-12-14 09:42:59,312 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 09:42:59,312 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-12-14 09:42:59,397 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 09:42:59,397 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-12-14 09:42:59,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:42:59,456 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 09:42:59,487 INFO L197 IcfgInterpreter]: Interpreting procedure fail with input of size 49 for LOIs [2022-12-14 09:42:59,497 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:43:02,775 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '28213#(and (<= 0 |#NULL.base|) (or (exists ((|v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_2| Int)) (and (exists ((|v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_2| Int)) (and (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_2|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_2|) 0) (= (select |#valid| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_2|) 1) (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_2|) (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_2| 4)) 0) (<= (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_2| 8) (select |#length| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_2|)) (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_2|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_2|) 0) (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_2|) (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_2| 4)) 0))) (<= 0 |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_2|) (not (= |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_2| 0)))) (exists ((|v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_2| Int)) (and (exists ((|v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_2| Int)) (and (not (= |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_2| 0)) (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_2|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_2|) 0) (= (select |#valid| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_2|) 1) (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_2|) (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_2| 4)) 0) (<= (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_2| 8) (select |#length| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_2|)) (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_2|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_2|) 0) (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_2|) (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_2| 4)) 0))) (<= 0 |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_2|)))) (<= |#NULL.offset| 0) (<= |#NULL.base| 0) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|))' at error location [2022-12-14 09:43:02,775 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 09:43:02,775 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:43:02,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 16] total 39 [2022-12-14 09:43:02,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018650718] [2022-12-14 09:43:02,775 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 09:43:02,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-12-14 09:43:02,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:43:02,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-12-14 09:43:02,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=249, Invalid=3531, Unknown=2, NotChecked=0, Total=3782 [2022-12-14 09:43:02,778 INFO L87 Difference]: Start difference. First operand 303 states and 339 transitions. Second operand has 39 states, 39 states have (on average 3.051282051282051) internal successors, (119), 39 states have internal predecessors, (119), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:43:12,739 WARN L233 SmtUtils]: Spent 8.24s on a formula simplification. DAG size of input: 62 DAG size of output: 60 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:43:14,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-12-14 09:43:16,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:43:16,019 INFO L93 Difference]: Finished difference Result 586 states and 644 transitions. [2022-12-14 09:43:16,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-12-14 09:43:16,020 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 3.051282051282051) internal successors, (119), 39 states have internal predecessors, (119), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2022-12-14 09:43:16,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:43:16,021 INFO L225 Difference]: With dead ends: 586 [2022-12-14 09:43:16,021 INFO L226 Difference]: Without dead ends: 586 [2022-12-14 09:43:16,022 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 87 SyntacticMatches, 1 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1584 ImplicationChecksByTransitivity, 13.6s TimeCoverageRelationStatistics Valid=818, Invalid=5985, Unknown=3, NotChecked=0, Total=6806 [2022-12-14 09:43:16,022 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 3598 mSDsluCounter, 3148 mSDsCounter, 0 mSdLazyCounter, 2727 mSolverCounterSat, 65 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3600 SdHoareTripleChecker+Valid, 3367 SdHoareTripleChecker+Invalid, 2799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 2727 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-12-14 09:43:16,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3600 Valid, 3367 Invalid, 2799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 2727 Invalid, 7 Unknown, 0 Unchecked, 3.7s Time] [2022-12-14 09:43:16,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2022-12-14 09:43:16,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 303. [2022-12-14 09:43:16,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 214 states have (on average 1.5233644859813085) internal successors, (326), 300 states have internal predecessors, (326), 10 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:43:16,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 338 transitions. [2022-12-14 09:43:16,025 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 338 transitions. Word has length 44 [2022-12-14 09:43:16,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:43:16,026 INFO L495 AbstractCegarLoop]: Abstraction has 303 states and 338 transitions. [2022-12-14 09:43:16,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 3.051282051282051) internal successors, (119), 39 states have internal predecessors, (119), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:43:16,026 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 338 transitions. [2022-12-14 09:43:16,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-12-14 09:43:16,026 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:43:16,026 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 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] [2022-12-14 09:43:16,031 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-12-14 09:43:16,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:43:16,228 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-12-14 09:43:16,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:43:16,229 INFO L85 PathProgramCache]: Analyzing trace with hash 99803102, now seen corresponding path program 1 times [2022-12-14 09:43:16,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:43:16,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952613529] [2022-12-14 09:43:16,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:43:16,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:43:16,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:43:16,732 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:43:16,733 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:43:16,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952613529] [2022-12-14 09:43:16,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952613529] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:43:16,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [730097951] [2022-12-14 09:43:16,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:43:16,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:43:16,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:43:16,734 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:43:16,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-14 09:43:16,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:43:16,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 69 conjunts are in the unsatisfiable core [2022-12-14 09:43:16,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:43:16,869 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 09:43:16,895 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:43:16,898 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:43:16,938 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 09:43:16,938 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-14 09:43:16,980 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-14 09:43:16,986 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-14 09:43:16,999 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-14 09:43:16,999 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-12-14 09:43:17,004 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-14 09:43:17,010 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-14 09:43:17,043 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-14 09:43:17,048 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-14 09:43:17,057 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-14 09:43:17,062 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2022-12-14 09:43:17,313 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:43:17,317 INFO L321 Elim1Store]: treesize reduction 17, result has 15.0 percent of original size [2022-12-14 09:43:17,317 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 33 [2022-12-14 09:43:17,322 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-12-14 09:43:17,322 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 16 [2022-12-14 09:43:17,341 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:43:17,342 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:43:17,717 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:43:17,717 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 21 [2022-12-14 09:43:17,723 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:43:17,723 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 21 [2022-12-14 09:43:20,129 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:43:20,129 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 26 [2022-12-14 09:43:20,133 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 140 treesize of output 122 [2022-12-14 09:43:20,140 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 59 treesize of output 51 [2022-12-14 09:43:20,149 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:43:20,149 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 116 treesize of output 106 [2022-12-14 09:43:20,215 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:43:20,215 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 26 [2022-12-14 09:43:20,220 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 140 treesize of output 122 [2022-12-14 09:43:20,225 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 118 treesize of output 110 [2022-12-14 09:43:20,234 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:43:20,234 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 116 treesize of output 106 [2022-12-14 09:43:20,685 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:43:20,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [730097951] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:43:20,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [268339324] [2022-12-14 09:43:20,687 INFO L159 IcfgInterpreter]: Started Sifa with 28 locations of interest [2022-12-14 09:43:20,687 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:43:20,687 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:43:20,687 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:43:20,687 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:43:20,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:20,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:20,714 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 09:43:20,727 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:43:20,733 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:43:20,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:20,740 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-12-14 09:43:20,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:20,755 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 09:43:20,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:20,763 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 09:43:20,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:20,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:20,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:20,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:20,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:20,775 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-12-14 09:43:20,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:20,788 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 09:43:20,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:20,807 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 09:43:20,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:20,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:20,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:20,820 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 38 [2022-12-14 09:43:20,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:20,833 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 09:43:20,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:20,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:20,853 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 09:43:20,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:20,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:20,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:20,866 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 38 [2022-12-14 09:43:20,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:20,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:20,882 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 09:43:20,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:20,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:20,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:20,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:20,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:20,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:20,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:20,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:20,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:20,923 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 47 [2022-12-14 09:43:20,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:20,974 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-12-14 09:43:20,974 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 143 treesize of output 111 [2022-12-14 09:43:20,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:20,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:20,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:20,990 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 40 [2022-12-14 09:43:21,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:21,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:21,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:21,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:21,008 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2022-12-14 09:43:21,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:21,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:21,044 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:43:21,060 INFO L321 Elim1Store]: treesize reduction 49, result has 15.5 percent of original size [2022-12-14 09:43:21,060 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 179 treesize of output 131 [2022-12-14 09:43:21,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:21,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:21,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:21,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:21,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:21,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:21,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:21,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:21,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:21,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:21,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:21,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:21,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:21,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:21,089 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 60 [2022-12-14 09:43:21,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:21,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:21,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:21,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:21,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:21,107 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 47 [2022-12-14 09:43:21,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:21,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:21,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:21,122 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 49 [2022-12-14 09:43:21,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:21,195 INFO L321 Elim1Store]: treesize reduction 72, result has 23.4 percent of original size [2022-12-14 09:43:21,195 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 171 treesize of output 138 [2022-12-14 09:43:21,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:21,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:21,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:21,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:21,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:21,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:21,215 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 57 [2022-12-14 09:43:21,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:21,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:21,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:21,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:21,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:21,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:21,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:21,235 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2022-12-14 09:43:21,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:21,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:21,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:21,289 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:43:21,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:21,291 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:43:21,291 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:43:21,291 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:43:21,313 INFO L321 Elim1Store]: treesize reduction 67, result has 11.8 percent of original size [2022-12-14 09:43:21,314 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 494 treesize of output 456 [2022-12-14 09:43:21,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:21,326 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:43:21,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:21,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:21,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:21,329 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:43:21,329 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:43:21,330 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:43:21,350 INFO L321 Elim1Store]: treesize reduction 133, result has 10.1 percent of original size [2022-12-14 09:43:21,350 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 638 treesize of output 641 [2022-12-14 09:43:21,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:21,364 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:43:21,364 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:43:21,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:21,396 INFO L321 Elim1Store]: treesize reduction 98, result has 35.1 percent of original size [2022-12-14 09:43:21,396 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 752 treesize of output 719 [2022-12-14 09:43:21,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:21,726 INFO L321 Elim1Store]: treesize reduction 338, result has 16.7 percent of original size [2022-12-14 09:43:21,726 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 19 case distinctions, treesize of input 1450 treesize of output 1415 [2022-12-14 09:43:22,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:22,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:22,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:22,068 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:43:22,068 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:43:22,069 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:43:22,137 INFO L321 Elim1Store]: treesize reduction 122, result has 24.2 percent of original size [2022-12-14 09:43:22,138 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 1706 treesize of output 961 [2022-12-14 09:43:22,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:22,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:22,165 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:43:22,264 INFO L321 Elim1Store]: treesize reduction 336, result has 14.3 percent of original size [2022-12-14 09:43:22,264 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 19 case distinctions, treesize of input 1727 treesize of output 1442 [2022-12-14 09:43:22,309 INFO L321 Elim1Store]: treesize reduction 49, result has 12.5 percent of original size [2022-12-14 09:43:22,310 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 6 case distinctions, treesize of input 1630 treesize of output 1527 [2022-12-14 09:43:22,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:22,931 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:43:22,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:22,933 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:43:22,933 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:43:22,934 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:43:23,014 INFO L321 Elim1Store]: treesize reduction 142, result has 15.0 percent of original size [2022-12-14 09:43:23,014 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 22 case distinctions, treesize of input 4587 treesize of output 2492 [2022-12-14 09:43:23,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:23,071 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:43:23,071 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:43:23,177 INFO L321 Elim1Store]: treesize reduction 388, result has 8.5 percent of original size [2022-12-14 09:43:23,177 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 23 case distinctions, treesize of input 4605 treesize of output 3740 [2022-12-14 09:43:23,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:23,248 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:43:23,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:23,298 INFO L321 Elim1Store]: treesize reduction 100, result has 35.5 percent of original size [2022-12-14 09:43:23,298 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 7 case distinctions, treesize of input 4574 treesize of output 4294 [2022-12-14 09:43:23,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:23,501 INFO L321 Elim1Store]: treesize reduction 458, result has 14.4 percent of original size [2022-12-14 09:43:23,502 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 26 case distinctions, treesize of input 4506 treesize of output 4316 [2022-12-14 09:43:26,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:26,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:26,932 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:43:26,933 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:43:26,934 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:43:27,045 INFO L321 Elim1Store]: treesize reduction 170, result has 21.3 percent of original size [2022-12-14 09:43:27,045 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 25 case distinctions, treesize of input 18379 treesize of output 9801 [2022-12-14 09:43:27,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:27,208 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:43:27,364 INFO L321 Elim1Store]: treesize reduction 416, result has 13.2 percent of original size [2022-12-14 09:43:27,364 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 26 case distinctions, treesize of input 18240 treesize of output 14766 [2022-12-14 09:43:27,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:27,574 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:43:27,606 INFO L321 Elim1Store]: treesize reduction 85, result has 7.6 percent of original size [2022-12-14 09:43:27,606 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 17956 treesize of output 16866 [2022-12-14 09:43:31,701 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 09:43:31,704 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:43:31,708 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:43:31,728 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 09:43:31,728 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-12-14 09:43:31,747 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 09:43:31,748 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 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-14 09:43:31,756 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:43:31,762 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-14 09:43:31,768 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:43:31,802 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 09:43:31,802 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-12-14 09:43:31,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:31,808 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 09:43:31,813 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:43:31,819 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 27 [2022-12-14 09:43:31,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:31,827 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-12-14 09:43:31,838 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 09:43:31,844 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-12-14 09:43:31,852 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 18 [2022-12-14 09:43:31,862 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:43:31,865 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 09:43:31,869 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:43:32,398 INFO L321 Elim1Store]: treesize reduction 46, result has 37.8 percent of original size [2022-12-14 09:43:32,398 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 125 treesize of output 145 [2022-12-14 09:43:32,494 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 09:43:32,494 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 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-14 09:43:32,512 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-12-14 09:43:32,512 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 2 case distinctions, treesize of input 17 treesize of output 1 [2022-12-14 09:43:32,537 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-12-14 09:43:32,537 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 2 case distinctions, treesize of input 17 treesize of output 1 [2022-12-14 09:43:32,629 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:43:32,649 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-12-14 09:43:32,649 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 475 treesize of output 430 [2022-12-14 09:43:32,672 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-12-14 09:43:32,673 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 447 treesize of output 456 [2022-12-14 09:43:32,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:32,826 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 09:43:32,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:32,889 INFO L321 Elim1Store]: treesize reduction 70, result has 28.6 percent of original size [2022-12-14 09:43:32,890 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 8 case distinctions, treesize of input 779 treesize of output 774 [2022-12-14 09:43:32,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:32,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:32,907 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 742 treesize of output 688 [2022-12-14 09:43:32,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:32,951 INFO L321 Elim1Store]: treesize reduction 39, result has 30.4 percent of original size [2022-12-14 09:43:32,951 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 755 treesize of output 744 [2022-12-14 09:43:33,437 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 09:43:33,437 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-12-14 09:43:33,464 INFO L321 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2022-12-14 09:43:33,465 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 1 [2022-12-14 09:43:33,475 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2022-12-14 09:43:33,514 INFO L321 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2022-12-14 09:43:33,514 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 1 [2022-12-14 09:43:33,569 INFO L197 IcfgInterpreter]: Interpreting procedure fail with input of size 32 for LOIs [2022-12-14 09:43:33,574 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:43:36,305 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '29462#(and (<= 0 |#NULL.base|) (<= |#NULL.offset| 0) (<= |#NULL.base| 0) (exists ((|v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_3| Int) (|v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_3| Int)) (and (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_3|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_3|) 0) (<= 0 |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_3|) (= (select |#valid| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_3|) 1) (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_3|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_3|) 0) (<= (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_3| 4) (select |#length| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_3|)))) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|))' at error location [2022-12-14 09:43:36,306 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 09:43:36,306 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:43:36,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 10, 13] total 35 [2022-12-14 09:43:36,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141977475] [2022-12-14 09:43:36,306 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 09:43:36,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-12-14 09:43:36,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:43:36,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-12-14 09:43:36,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=2682, Unknown=1, NotChecked=0, Total=2862 [2022-12-14 09:43:36,308 INFO L87 Difference]: Start difference. First operand 303 states and 338 transitions. Second operand has 35 states, 35 states have (on average 3.4857142857142858) internal successors, (122), 35 states have internal predecessors, (122), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:43:40,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:43:40,583 INFO L93 Difference]: Finished difference Result 647 states and 700 transitions. [2022-12-14 09:43:40,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-12-14 09:43:40,583 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4857142857142858) internal successors, (122), 35 states have internal predecessors, (122), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2022-12-14 09:43:40,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:43:40,584 INFO L225 Difference]: With dead ends: 647 [2022-12-14 09:43:40,584 INFO L226 Difference]: Without dead ends: 643 [2022-12-14 09:43:40,585 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 96 SyntacticMatches, 1 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1590 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=659, Invalid=6650, Unknown=1, NotChecked=0, Total=7310 [2022-12-14 09:43:40,586 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 4350 mSDsluCounter, 3935 mSDsCounter, 0 mSdLazyCounter, 2964 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4352 SdHoareTripleChecker+Valid, 4166 SdHoareTripleChecker+Invalid, 3024 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 2964 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:43:40,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4352 Valid, 4166 Invalid, 3024 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 2964 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-12-14 09:43:40,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2022-12-14 09:43:40,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 329. [2022-12-14 09:43:40,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 240 states have (on average 1.4708333333333334) internal successors, (353), 326 states have internal predecessors, (353), 10 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:43:40,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 365 transitions. [2022-12-14 09:43:40,589 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 365 transitions. Word has length 44 [2022-12-14 09:43:40,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:43:40,589 INFO L495 AbstractCegarLoop]: Abstraction has 329 states and 365 transitions. [2022-12-14 09:43:40,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 3.4857142857142858) internal successors, (122), 35 states have internal predecessors, (122), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:43:40,590 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 365 transitions. [2022-12-14 09:43:40,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-12-14 09:43:40,590 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:43:40,590 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:43:40,595 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-12-14 09:43:40,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2022-12-14 09:43:40,791 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr73REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-12-14 09:43:40,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:43:40,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1904378457, now seen corresponding path program 1 times [2022-12-14 09:43:40,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:43:40,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540173477] [2022-12-14 09:43:40,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:43:40,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:43:40,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:43:40,979 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 09:43:40,979 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:43:40,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540173477] [2022-12-14 09:43:40,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540173477] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:43:40,979 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:43:40,979 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-14 09:43:40,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271287472] [2022-12-14 09:43:40,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:43:40,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 09:43:40,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:43:40,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 09:43:40,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-14 09:43:40,980 INFO L87 Difference]: Start difference. First operand 329 states and 365 transitions. Second operand has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:43:41,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:43:41,325 INFO L93 Difference]: Finished difference Result 349 states and 385 transitions. [2022-12-14 09:43:41,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 09:43:41,325 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2022-12-14 09:43:41,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:43:41,327 INFO L225 Difference]: With dead ends: 349 [2022-12-14 09:43:41,327 INFO L226 Difference]: Without dead ends: 349 [2022-12-14 09:43:41,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2022-12-14 09:43:41,328 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 140 mSDsluCounter, 1053 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 1214 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 09:43:41,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 1214 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 09:43:41,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2022-12-14 09:43:41,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 328. [2022-12-14 09:43:41,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 239 states have (on average 1.4686192468619246) internal successors, (351), 325 states have internal predecessors, (351), 10 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:43:41,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 363 transitions. [2022-12-14 09:43:41,330 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 363 transitions. Word has length 44 [2022-12-14 09:43:41,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:43:41,331 INFO L495 AbstractCegarLoop]: Abstraction has 328 states and 363 transitions. [2022-12-14 09:43:41,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:43:41,331 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 363 transitions. [2022-12-14 09:43:41,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-12-14 09:43:41,331 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:43:41,331 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2022-12-14 09:43:41,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-12-14 09:43:41,331 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr26REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-12-14 09:43:41,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:43:41,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1000115697, now seen corresponding path program 1 times [2022-12-14 09:43:41,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:43:41,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222235494] [2022-12-14 09:43:41,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:43:41,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:43:41,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:43:42,143 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:43:42,144 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:43:42,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222235494] [2022-12-14 09:43:42,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222235494] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:43:42,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1128123137] [2022-12-14 09:43:42,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:43:42,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:43:42,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:43:42,145 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:43:42,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-14 09:43:42,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:43:42,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 75 conjunts are in the unsatisfiable core [2022-12-14 09:43:42,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:43:42,257 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 09:43:42,297 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 09:43:42,297 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 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-14 09:43:42,339 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:43:42,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:42,387 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 26 [2022-12-14 09:43:42,464 INFO L321 Elim1Store]: treesize reduction 48, result has 36.0 percent of original size [2022-12-14 09:43:42,464 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 41 [2022-12-14 09:43:42,526 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 30 [2022-12-14 09:43:42,549 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 30 [2022-12-14 09:43:42,583 INFO L321 Elim1Store]: treesize reduction 38, result has 48.6 percent of original size [2022-12-14 09:43:42,584 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 26 treesize of output 50 [2022-12-14 09:43:42,691 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 09:43:42,692 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 62 [2022-12-14 09:43:42,706 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 48 treesize of output 38 [2022-12-14 09:43:42,853 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:43:42,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:42,860 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 82 [2022-12-14 09:43:44,162 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-14 09:43:44,898 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-14 09:43:44,898 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 89 treesize of output 40 [2022-12-14 09:43:44,971 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:43:44,971 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:43:45,492 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:43:45,492 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 34 [2022-12-14 09:43:45,867 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:43:45,868 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 68 treesize of output 60 [2022-12-14 09:43:45,875 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 388 treesize of output 356 [2022-12-14 09:43:45,883 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 352 treesize of output 340 [2022-12-14 09:43:45,901 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:43:45,901 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 346 treesize of output 280 [2022-12-14 09:43:50,591 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:43:50,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1128123137] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:43:50,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1631121000] [2022-12-14 09:43:50,593 INFO L159 IcfgInterpreter]: Started Sifa with 36 locations of interest [2022-12-14 09:43:50,593 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:43:50,593 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:43:50,593 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:43:50,593 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:43:50,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:50,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:50,623 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 09:43:50,633 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:43:50,637 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:43:50,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:50,643 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-12-14 09:43:50,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:50,655 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 09:43:50,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:50,662 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 09:43:50,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:50,668 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 09:43:50,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:50,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:50,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:50,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:50,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:50,678 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-12-14 09:43:50,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:50,693 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 09:43:50,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:50,700 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 09:43:50,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:50,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:50,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:50,709 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 38 [2022-12-14 09:43:50,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:50,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:50,736 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 09:43:50,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:50,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:50,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:50,744 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 38 [2022-12-14 09:43:50,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:50,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:50,754 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 09:43:50,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:50,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:50,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:50,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:50,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:50,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:50,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:50,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:50,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:50,786 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 56 [2022-12-14 09:43:50,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:50,828 INFO L321 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2022-12-14 09:43:50,828 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 178 treesize of output 142 [2022-12-14 09:43:50,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:50,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:50,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:50,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:50,845 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 97 [2022-12-14 09:43:50,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:50,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:50,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:50,857 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 46 [2022-12-14 09:43:50,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:50,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:50,891 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:43:50,903 INFO L321 Elim1Store]: treesize reduction 49, result has 15.5 percent of original size [2022-12-14 09:43:50,903 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 214 treesize of output 162 [2022-12-14 09:43:50,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:50,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:50,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:50,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:50,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:50,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:50,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:50,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:50,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:50,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:50,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:50,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:50,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:50,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:50,945 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 64 [2022-12-14 09:43:50,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:50,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:50,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:50,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:50,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:50,965 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 124 treesize of output 100 [2022-12-14 09:43:50,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:50,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:50,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:50,980 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 49 [2022-12-14 09:43:51,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:51,044 INFO L321 Elim1Store]: treesize reduction 72, result has 23.4 percent of original size [2022-12-14 09:43:51,044 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 171 treesize of output 138 [2022-12-14 09:43:51,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:51,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:51,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:51,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:51,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:51,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:51,068 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 57 [2022-12-14 09:43:51,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:51,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:51,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:51,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:51,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:51,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:51,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:51,089 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2022-12-14 09:43:51,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:51,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:51,148 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:43:51,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:51,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:51,152 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:43:51,153 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:43:51,153 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:43:51,173 INFO L321 Elim1Store]: treesize reduction 67, result has 11.8 percent of original size [2022-12-14 09:43:51,173 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 494 treesize of output 456 [2022-12-14 09:43:51,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:51,188 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:43:51,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:51,190 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:43:51,215 INFO L321 Elim1Store]: treesize reduction 80, result has 33.9 percent of original size [2022-12-14 09:43:51,215 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 638 treesize of output 605 [2022-12-14 09:43:51,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:51,228 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:43:51,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:51,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:51,231 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:43:51,231 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:43:51,231 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:43:51,247 INFO L321 Elim1Store]: treesize reduction 133, result has 10.1 percent of original size [2022-12-14 09:43:51,247 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 604 treesize of output 607 [2022-12-14 09:43:51,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:51,570 INFO L321 Elim1Store]: treesize reduction 338, result has 16.7 percent of original size [2022-12-14 09:43:51,570 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 19 case distinctions, treesize of input 1426 treesize of output 1403 [2022-12-14 09:43:52,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:52,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:52,056 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:43:52,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:52,057 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:43:52,059 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:43:52,185 INFO L321 Elim1Store]: treesize reduction 214, result has 16.7 percent of original size [2022-12-14 09:43:52,186 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 3502 treesize of output 1989 [2022-12-14 09:43:52,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:52,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:52,228 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:43:52,316 INFO L321 Elim1Store]: treesize reduction 370, result has 13.1 percent of original size [2022-12-14 09:43:52,316 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 10 new quantified variables, introduced 19 case distinctions, treesize of input 3483 treesize of output 2753 [2022-12-14 09:43:52,395 INFO L321 Elim1Store]: treesize reduction 158, result has 13.7 percent of original size [2022-12-14 09:43:52,395 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 7 case distinctions, treesize of input 3346 treesize of output 3017 [2022-12-14 09:43:53,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:53,484 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:43:53,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:53,490 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:43:53,497 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:43:53,498 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:43:53,661 INFO L321 Elim1Store]: treesize reduction 268, result has 11.8 percent of original size [2022-12-14 09:43:53,661 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 23 case distinctions, treesize of input 6570 treesize of output 3663 [2022-12-14 09:43:53,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:53,726 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:43:53,727 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:43:53,923 INFO L321 Elim1Store]: treesize reduction 464, result has 9.2 percent of original size [2022-12-14 09:43:53,923 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 11 new quantified variables, introduced 24 case distinctions, treesize of input 6588 treesize of output 5186 [2022-12-14 09:43:54,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:54,004 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:43:54,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:54,141 INFO L321 Elim1Store]: treesize reduction 174, result has 26.0 percent of original size [2022-12-14 09:43:54,142 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 7 case distinctions, treesize of input 6557 treesize of output 5927 [2022-12-14 09:43:54,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:54,526 INFO L321 Elim1Store]: treesize reduction 458, result has 14.4 percent of original size [2022-12-14 09:43:54,526 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 26 case distinctions, treesize of input 6409 treesize of output 6077 [2022-12-14 09:43:58,798 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:43:58,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:58,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:58,804 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:43:58,806 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:43:58,911 INFO L321 Elim1Store]: treesize reduction 270, result has 15.6 percent of original size [2022-12-14 09:43:58,912 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 25 case distinctions, treesize of input 22099 treesize of output 12219 [2022-12-14 09:43:59,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:59,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:59,113 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:43:59,244 INFO L321 Elim1Store]: treesize reduction 438, result has 11.3 percent of original size [2022-12-14 09:43:59,244 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 11 new quantified variables, introduced 25 case distinctions, treesize of input 21880 treesize of output 17357 [2022-12-14 09:43:59,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:59,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:59,501 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:43:59,545 INFO L321 Elim1Store]: treesize reduction 202, result has 11.0 percent of original size [2022-12-14 09:43:59,546 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 21756 treesize of output 19820 [2022-12-14 09:44:05,431 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 09:44:05,435 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:44:05,438 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:44:05,455 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 09:44:05,456 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-12-14 09:44:05,473 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 09:44:05,473 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 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-14 09:44:05,482 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-14 09:44:05,489 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:44:05,496 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:44:05,525 INFO L321 Elim1Store]: treesize reduction 24, result has 38.5 percent of original size [2022-12-14 09:44:05,525 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 33 [2022-12-14 09:44:05,552 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 09:44:05,552 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-12-14 09:44:05,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:05,559 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2022-12-14 09:44:05,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:05,565 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 09:44:05,571 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:44:05,581 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 18 [2022-12-14 09:44:05,588 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 09:44:05,596 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 09:44:05,606 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 09:44:05,610 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:44:05,614 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:44:06,261 INFO L321 Elim1Store]: treesize reduction 46, result has 37.8 percent of original size [2022-12-14 09:44:06,262 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 125 treesize of output 145 [2022-12-14 09:44:06,305 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 09:44:06,305 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 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-14 09:44:06,393 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:44:06,412 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-12-14 09:44:06,412 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 229 treesize of output 238 [2022-12-14 09:44:06,429 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-12-14 09:44:06,430 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 227 treesize of output 214 [2022-12-14 09:44:06,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:06,567 INFO L321 Elim1Store]: treesize reduction 70, result has 28.6 percent of original size [2022-12-14 09:44:06,568 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 8 case distinctions, treesize of input 330 treesize of output 343 [2022-12-14 09:44:06,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:06,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:06,583 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 311 treesize of output 297 [2022-12-14 09:44:06,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:06,616 INFO L321 Elim1Store]: treesize reduction 39, result has 30.4 percent of original size [2022-12-14 09:44:06,616 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 324 treesize of output 319 [2022-12-14 09:44:06,775 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 09:44:06,775 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-12-14 09:44:06,814 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 09:44:06,814 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-12-14 09:44:06,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:06,838 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 09:44:06,849 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:44:10,191 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '31532#(and (<= 0 |#NULL.base|) (<= 0 |ULTIMATE.start_inspect_before_~shape#1.offset|) (= (select |#valid| |ULTIMATE.start_inspect_before_~shape#1.base|) 1) (= |ULTIMATE.start_inspect_before_#t~mem29#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|)) (= |ULTIMATE.start_inspect_before_#t~mem29#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|)) (<= 0 |ULTIMATE.start_main_~item~0#1.offset|) (<= 0 |ULTIMATE.start_main_~node~1#1.offset|) (<= |#NULL.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_inspect_before_~shape#1.base|) (+ 4 |ULTIMATE.start_inspect_before_~shape#1.offset|)) 0) (<= 0 |ULTIMATE.start_inspect_before_#in~shape#1.offset|) (or (not (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|) 0)) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|) 0))) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_inspect_before_~shape#1.base|) (+ 4 |ULTIMATE.start_inspect_before_~shape#1.offset|)) 0) (<= |ULTIMATE.start_main_~item~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~data~0#1.offset|) (<= |#NULL.base| 0) (or (not (= 0 |ULTIMATE.start_inspect_before_~shape#1.offset|)) (not (= |ULTIMATE.start_inspect_before_~shape#1.base| 0))) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_main_~data~0#1.offset| 0) (<= |ULTIMATE.start_inspect_before_#in~shape#1.offset| 0) (<= 0 |#StackHeapBarrier|) (not (= (select |#valid| |ULTIMATE.start_inspect_before_#t~mem29#1.base|) 1)) (<= (+ 8 |ULTIMATE.start_inspect_before_~shape#1.offset|) (select |#length| |ULTIMATE.start_inspect_before_~shape#1.base|)) (<= |ULTIMATE.start_main_~node~1#1.offset| 0))' at error location [2022-12-14 09:44:10,191 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 09:44:10,191 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:44:10,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 15, 17] total 45 [2022-12-14 09:44:10,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163503540] [2022-12-14 09:44:10,191 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 09:44:10,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-12-14 09:44:10,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:44:10,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-12-14 09:44:10,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=329, Invalid=4499, Unknown=2, NotChecked=0, Total=4830 [2022-12-14 09:44:10,193 INFO L87 Difference]: Start difference. First operand 328 states and 363 transitions. Second operand has 46 states, 45 states have (on average 2.8222222222222224) internal successors, (127), 46 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:44:18,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2022-12-14 09:44:20,606 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2022-12-14 09:44:22,689 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2022-12-14 09:44:24,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:44:24,895 INFO L93 Difference]: Finished difference Result 591 states and 646 transitions. [2022-12-14 09:44:24,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-12-14 09:44:24,895 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 2.8222222222222224) internal successors, (127), 46 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2022-12-14 09:44:24,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:44:24,896 INFO L225 Difference]: With dead ends: 591 [2022-12-14 09:44:24,896 INFO L226 Difference]: Without dead ends: 591 [2022-12-14 09:44:24,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 83 SyntacticMatches, 2 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2451 ImplicationChecksByTransitivity, 14.1s TimeCoverageRelationStatistics Valid=1092, Invalid=7827, Unknown=11, NotChecked=0, Total=8930 [2022-12-14 09:44:24,898 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 3753 mSDsluCounter, 3467 mSDsCounter, 0 mSdLazyCounter, 3974 mSolverCounterSat, 129 mSolverCounterUnsat, 44 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3755 SdHoareTripleChecker+Valid, 3668 SdHoareTripleChecker+Invalid, 4147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 3974 IncrementalHoareTripleChecker+Invalid, 44 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:44:24,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3755 Valid, 3668 Invalid, 4147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 3974 Invalid, 44 Unknown, 0 Unchecked, 10.1s Time] [2022-12-14 09:44:24,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2022-12-14 09:44:24,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 329. [2022-12-14 09:44:24,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 240 states have (on average 1.4708333333333334) internal successors, (353), 326 states have internal predecessors, (353), 10 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:44:24,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 365 transitions. [2022-12-14 09:44:24,901 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 365 transitions. Word has length 45 [2022-12-14 09:44:24,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:44:24,901 INFO L495 AbstractCegarLoop]: Abstraction has 329 states and 365 transitions. [2022-12-14 09:44:24,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 2.8222222222222224) internal successors, (127), 46 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:44:24,901 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 365 transitions. [2022-12-14 09:44:24,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-12-14 09:44:24,901 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:44:24,901 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2022-12-14 09:44:24,906 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-12-14 09:44:25,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2022-12-14 09:44:25,103 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr27REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-12-14 09:44:25,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:44:25,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1000115698, now seen corresponding path program 1 times [2022-12-14 09:44:25,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:44:25,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207667100] [2022-12-14 09:44:25,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:44:25,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:44:25,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:44:26,142 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:44:26,142 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:44:26,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207667100] [2022-12-14 09:44:26,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207667100] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:44:26,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1913898227] [2022-12-14 09:44:26,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:44:26,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:44:26,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:44:26,144 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:44:26,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-14 09:44:26,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:44:26,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 82 conjunts are in the unsatisfiable core [2022-12-14 09:44:26,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:44:26,298 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 09:44:26,342 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 09:44:26,342 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-14 09:44:26,351 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-14 09:44:26,387 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 09:44:26,391 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:44:26,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:26,428 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 31 [2022-12-14 09:44:26,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:26,437 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-14 09:44:26,499 INFO L321 Elim1Store]: treesize reduction 48, result has 36.0 percent of original size [2022-12-14 09:44:26,499 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 41 [2022-12-14 09:44:26,514 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-14 09:44:26,567 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 37 [2022-12-14 09:44:26,578 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-14 09:44:26,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:26,599 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-14 09:44:26,604 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 37 [2022-12-14 09:44:26,616 INFO L321 Elim1Store]: treesize reduction 8, result has 61.9 percent of original size [2022-12-14 09:44:26,616 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 22 [2022-12-14 09:44:26,626 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-14 09:44:26,676 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 30 [2022-12-14 09:44:26,684 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-14 09:44:26,697 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 30 [2022-12-14 09:44:26,704 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2022-12-14 09:44:27,459 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:44:27,459 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 91 treesize of output 45 [2022-12-14 09:44:27,466 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-12-14 09:44:27,467 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 16 [2022-12-14 09:44:27,516 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:44:27,516 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:44:27,997 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:44:27,998 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2022-12-14 09:44:28,005 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:44:28,005 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 35 [2022-12-14 09:44:28,010 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:44:28,010 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 30 [2022-12-14 09:44:33,098 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:44:33,104 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:44:33,104 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 59 treesize of output 65 [2022-12-14 09:44:33,113 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 386 treesize of output 374 [2022-12-14 09:44:33,120 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:44:33,125 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:44:33,126 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 370 treesize of output 284 [2022-12-14 09:44:33,136 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1726 treesize of output 1658 [2022-12-14 09:44:33,155 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 827 treesize of output 795 [2022-12-14 09:44:33,180 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:44:33,180 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 1628 treesize of output 1570 [2022-12-14 09:44:33,199 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 1558 treesize of output 1526 [2022-12-14 09:44:33,219 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:44:33,219 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 1532 treesize of output 1474 [2022-12-14 09:44:38,408 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:44:38,412 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:44:38,413 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 32 [2022-12-14 09:44:38,416 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 122 treesize of output 110 [2022-12-14 09:44:38,425 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:44:38,425 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 112 treesize of output 110 [2022-12-14 09:44:38,430 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 94 [2022-12-14 09:44:49,288 WARN L233 SmtUtils]: Spent 10.25s on a formula simplification. DAG size of input: 148 DAG size of output: 52 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:44:49,310 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 299 treesize of output 293 [2022-12-14 09:44:49,742 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:44:49,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1913898227] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:44:49,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1581499622] [2022-12-14 09:44:49,743 INFO L159 IcfgInterpreter]: Started Sifa with 36 locations of interest [2022-12-14 09:44:49,743 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:44:49,744 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:44:49,744 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:44:49,744 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:44:49,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:49,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:49,768 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 09:44:49,784 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:44:49,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:49,791 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-12-14 09:44:49,799 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:44:49,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:49,816 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 09:44:49,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:49,823 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 09:44:49,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:49,832 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 09:44:49,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:49,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:49,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:49,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:49,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:49,847 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-12-14 09:44:49,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:49,867 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 09:44:49,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:49,875 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 09:44:49,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:49,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:49,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:49,888 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 38 [2022-12-14 09:44:49,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:49,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:49,907 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 09:44:49,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:49,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:49,920 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 09:44:49,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:49,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:49,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:49,933 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 38 [2022-12-14 09:44:49,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:49,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:49,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:49,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:49,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:49,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:49,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:49,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:49,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:49,976 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 47 [2022-12-14 09:44:50,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:50,031 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-12-14 09:44:50,031 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 143 treesize of output 111 [2022-12-14 09:44:50,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:50,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:50,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:50,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:50,055 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2022-12-14 09:44:50,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:50,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:50,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:50,071 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 40 [2022-12-14 09:44:50,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:50,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:50,108 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:44:50,127 INFO L321 Elim1Store]: treesize reduction 49, result has 15.5 percent of original size [2022-12-14 09:44:50,127 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 179 treesize of output 131 [2022-12-14 09:44:50,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:50,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:50,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:50,150 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 49 [2022-12-14 09:44:50,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:50,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:50,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:50,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:50,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:50,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:50,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:50,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:50,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:50,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:50,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:50,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:50,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:50,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:50,189 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 55 [2022-12-14 09:44:50,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:50,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:50,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:50,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:50,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:50,211 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 47 [2022-12-14 09:44:50,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:50,282 INFO L321 Elim1Store]: treesize reduction 72, result has 23.4 percent of original size [2022-12-14 09:44:50,282 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 171 treesize of output 138 [2022-12-14 09:44:50,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:50,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:50,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:50,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:50,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:50,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:50,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:50,308 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2022-12-14 09:44:50,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:50,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:50,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:50,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:50,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:50,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:50,331 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 57 [2022-12-14 09:44:50,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:50,397 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:44:50,397 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:44:50,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:50,440 INFO L321 Elim1Store]: treesize reduction 62, result has 31.9 percent of original size [2022-12-14 09:44:50,441 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 493 treesize of output 460 [2022-12-14 09:44:50,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:50,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:50,457 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:44:50,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:50,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:50,461 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:44:50,461 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:44:50,462 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:44:50,484 INFO L321 Elim1Store]: treesize reduction 67, result has 11.8 percent of original size [2022-12-14 09:44:50,484 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 490 treesize of output 452 [2022-12-14 09:44:50,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:50,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:50,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:50,505 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:44:50,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:50,507 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:44:50,507 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:44:50,508 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:44:50,531 INFO L321 Elim1Store]: treesize reduction 133, result has 10.1 percent of original size [2022-12-14 09:44:50,532 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 597 treesize of output 600 [2022-12-14 09:44:50,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:50,914 INFO L321 Elim1Store]: treesize reduction 338, result has 16.7 percent of original size [2022-12-14 09:44:50,915 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 19 case distinctions, treesize of input 1412 treesize of output 1393 [2022-12-14 09:44:51,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:51,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:51,317 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:44:51,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:51,320 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:44:51,322 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:44:51,460 INFO L321 Elim1Store]: treesize reduction 214, result has 16.7 percent of original size [2022-12-14 09:44:51,461 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 1778 treesize of output 1025 [2022-12-14 09:44:51,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:51,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:51,497 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:44:51,611 INFO L321 Elim1Store]: treesize reduction 370, result has 13.1 percent of original size [2022-12-14 09:44:51,611 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 10 new quantified variables, introduced 19 case distinctions, treesize of input 1799 treesize of output 1457 [2022-12-14 09:44:51,690 INFO L321 Elim1Store]: treesize reduction 158, result has 13.7 percent of original size [2022-12-14 09:44:51,690 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 7 case distinctions, treesize of input 1702 treesize of output 1557 [2022-12-14 09:44:52,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:52,598 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:44:52,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:52,602 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:44:52,608 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:44:52,608 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:44:52,733 INFO L321 Elim1Store]: treesize reduction 268, result has 11.8 percent of original size [2022-12-14 09:44:52,734 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 23 case distinctions, treesize of input 6469 treesize of output 3590 [2022-12-14 09:44:52,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:52,800 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:44:52,800 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:44:52,890 INFO L321 Elim1Store]: treesize reduction 464, result has 9.2 percent of original size [2022-12-14 09:44:52,891 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 11 new quantified variables, introduced 24 case distinctions, treesize of input 6487 treesize of output 5085 [2022-12-14 09:44:52,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:53,146 INFO L321 Elim1Store]: treesize reduction 458, result has 14.4 percent of original size [2022-12-14 09:44:53,147 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 26 case distinctions, treesize of input 6468 treesize of output 6214 [2022-12-14 09:44:53,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:53,229 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:44:53,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:53,284 INFO L321 Elim1Store]: treesize reduction 174, result has 26.0 percent of original size [2022-12-14 09:44:53,285 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 7 case distinctions, treesize of input 6420 treesize of output 5790 [2022-12-14 09:44:57,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:57,930 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:44:57,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:57,934 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:44:57,936 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:44:58,148 INFO L321 Elim1Store]: treesize reduction 270, result has 15.6 percent of original size [2022-12-14 09:44:58,148 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 25 case distinctions, treesize of input 26281 treesize of output 14387 [2022-12-14 09:44:58,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:58,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:58,389 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:44:58,504 INFO L321 Elim1Store]: treesize reduction 438, result has 11.3 percent of original size [2022-12-14 09:44:58,505 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 11 new quantified variables, introduced 25 case distinctions, treesize of input 26022 treesize of output 20467 [2022-12-14 09:44:58,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:58,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:58,823 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:44:58,874 INFO L321 Elim1Store]: treesize reduction 202, result has 11.0 percent of original size [2022-12-14 09:44:58,874 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 25658 treesize of output 23358 [2022-12-14 09:45:06,742 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 09:45:06,747 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:45:06,753 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:45:06,774 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 09:45:06,775 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-12-14 09:45:06,794 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 09:45:06,794 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 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-14 09:45:06,809 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 23 [2022-12-14 09:45:06,819 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:45:06,823 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:45:06,854 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 09:45:06,854 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-12-14 09:45:06,862 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2022-12-14 09:45:06,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:06,869 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 26 [2022-12-14 09:45:06,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:06,875 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 09:45:06,882 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:45:06,895 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 09:45:06,902 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 18 [2022-12-14 09:45:06,909 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 33 [2022-12-14 09:45:06,924 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 09:45:06,929 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:45:06,934 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:45:07,519 INFO L321 Elim1Store]: treesize reduction 46, result has 37.8 percent of original size [2022-12-14 09:45:07,519 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 146 treesize of output 166 [2022-12-14 09:45:07,577 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 09:45:07,577 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 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-14 09:45:07,672 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-12-14 09:45:07,672 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 251 treesize of output 238 [2022-12-14 09:45:07,701 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-12-14 09:45:07,701 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 239 treesize of output 242 [2022-12-14 09:45:07,762 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:45:07,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:07,868 INFO L321 Elim1Store]: treesize reduction 70, result has 28.6 percent of original size [2022-12-14 09:45:07,868 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 8 case distinctions, treesize of input 348 treesize of output 361 [2022-12-14 09:45:07,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:07,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:07,884 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 329 treesize of output 315 [2022-12-14 09:45:07,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:07,929 INFO L321 Elim1Store]: treesize reduction 39, result has 30.4 percent of original size [2022-12-14 09:45:07,930 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 342 treesize of output 331 [2022-12-14 09:45:08,088 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 09:45:08,089 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-12-14 09:45:08,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:08,124 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 09:45:08,134 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:45:12,324 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '32834#(and (<= 0 |#NULL.base|) (<= 0 |ULTIMATE.start_inspect_before_~shape#1.offset|) (= (select |#valid| |ULTIMATE.start_inspect_before_~shape#1.base|) 1) (= |ULTIMATE.start_inspect_before_#t~mem29#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|)) (= |ULTIMATE.start_inspect_before_#t~mem29#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|)) (<= 0 |ULTIMATE.start_main_~item~0#1.offset|) (<= 0 |ULTIMATE.start_main_~node~1#1.offset|) (<= |#NULL.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_inspect_before_~shape#1.base|) (+ 4 |ULTIMATE.start_inspect_before_~shape#1.offset|)) 0) (<= 0 |ULTIMATE.start_inspect_before_#in~shape#1.offset|) (or (not (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|) 0)) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|) 0))) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_inspect_before_~shape#1.base|) (+ 4 |ULTIMATE.start_inspect_before_~shape#1.offset|)) 0) (<= |ULTIMATE.start_main_~item~0#1.offset| 0) (or (not (<= (+ |ULTIMATE.start_inspect_before_#t~mem29#1.offset| 4) (select |#length| |ULTIMATE.start_inspect_before_#t~mem29#1.base|))) (not (<= 0 |ULTIMATE.start_inspect_before_#t~mem29#1.offset|))) (<= 0 |ULTIMATE.start_main_~data~0#1.offset|) (<= |#NULL.base| 0) (or (not (= 0 |ULTIMATE.start_inspect_before_~shape#1.offset|)) (not (= |ULTIMATE.start_inspect_before_~shape#1.base| 0))) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_main_~data~0#1.offset| 0) (<= |ULTIMATE.start_inspect_before_#in~shape#1.offset| 0) (<= 0 |#StackHeapBarrier|) (<= (+ 8 |ULTIMATE.start_inspect_before_~shape#1.offset|) (select |#length| |ULTIMATE.start_inspect_before_~shape#1.base|)) (<= |ULTIMATE.start_main_~node~1#1.offset| 0))' at error location [2022-12-14 09:45:12,324 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 09:45:12,324 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:45:12,324 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 12, 14] total 41 [2022-12-14 09:45:12,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534016431] [2022-12-14 09:45:12,325 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 09:45:12,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-12-14 09:45:12,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:45:12,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-12-14 09:45:12,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=272, Invalid=4016, Unknown=2, NotChecked=0, Total=4290 [2022-12-14 09:45:12,326 INFO L87 Difference]: Start difference. First operand 329 states and 365 transitions. Second operand has 42 states, 41 states have (on average 3.1951219512195124) internal successors, (131), 42 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:45:22,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:45:22,058 INFO L93 Difference]: Finished difference Result 713 states and 778 transitions. [2022-12-14 09:45:22,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-12-14 09:45:22,058 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 41 states have (on average 3.1951219512195124) internal successors, (131), 42 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2022-12-14 09:45:22,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:45:22,059 INFO L225 Difference]: With dead ends: 713 [2022-12-14 09:45:22,059 INFO L226 Difference]: Without dead ends: 713 [2022-12-14 09:45:22,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 88 SyntacticMatches, 1 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2288 ImplicationChecksByTransitivity, 26.6s TimeCoverageRelationStatistics Valid=1095, Invalid=8023, Unknown=2, NotChecked=0, Total=9120 [2022-12-14 09:45:22,060 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 3581 mSDsluCounter, 2722 mSDsCounter, 0 mSdLazyCounter, 4600 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3581 SdHoareTripleChecker+Valid, 2891 SdHoareTripleChecker+Invalid, 4693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 4600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:45:22,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3581 Valid, 2891 Invalid, 4693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 4600 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-12-14 09:45:22,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2022-12-14 09:45:22,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 329. [2022-12-14 09:45:22,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 240 states have (on average 1.4666666666666666) internal successors, (352), 326 states have internal predecessors, (352), 10 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:45:22,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 364 transitions. [2022-12-14 09:45:22,064 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 364 transitions. Word has length 45 [2022-12-14 09:45:22,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:45:22,064 INFO L495 AbstractCegarLoop]: Abstraction has 329 states and 364 transitions. [2022-12-14 09:45:22,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 41 states have (on average 3.1951219512195124) internal successors, (131), 42 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:45:22,064 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 364 transitions. [2022-12-14 09:45:22,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-12-14 09:45:22,065 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:45:22,065 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:45:22,070 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-12-14 09:45:22,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:45:22,266 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-12-14 09:45:22,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:45:22,267 INFO L85 PathProgramCache]: Analyzing trace with hash 446931310, now seen corresponding path program 1 times [2022-12-14 09:45:22,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:45:22,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146131520] [2022-12-14 09:45:22,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:45:22,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:45:22,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:45:22,332 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 09:45:22,332 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:45:22,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146131520] [2022-12-14 09:45:22,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146131520] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:45:22,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:45:22,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:45:22,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495389563] [2022-12-14 09:45:22,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:45:22,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:45:22,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:45:22,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:45:22,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:45:22,333 INFO L87 Difference]: Start difference. First operand 329 states and 364 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:45:22,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:45:22,448 INFO L93 Difference]: Finished difference Result 328 states and 361 transitions. [2022-12-14 09:45:22,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 09:45:22,448 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2022-12-14 09:45:22,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:45:22,449 INFO L225 Difference]: With dead ends: 328 [2022-12-14 09:45:22,449 INFO L226 Difference]: Without dead ends: 328 [2022-12-14 09:45:22,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-14 09:45:22,449 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 24 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:45:22,449 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 641 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:45:22,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2022-12-14 09:45:22,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 328. [2022-12-14 09:45:22,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 240 states have (on average 1.4583333333333333) internal successors, (350), 325 states have internal predecessors, (350), 9 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:45:22,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 361 transitions. [2022-12-14 09:45:22,452 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 361 transitions. Word has length 46 [2022-12-14 09:45:22,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:45:22,452 INFO L495 AbstractCegarLoop]: Abstraction has 328 states and 361 transitions. [2022-12-14 09:45:22,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:45:22,452 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 361 transitions. [2022-12-14 09:45:22,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-12-14 09:45:22,452 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:45:22,452 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2022-12-14 09:45:22,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-12-14 09:45:22,453 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-12-14 09:45:22,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:45:22,453 INFO L85 PathProgramCache]: Analyzing trace with hash 258826840, now seen corresponding path program 1 times [2022-12-14 09:45:22,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:45:22,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794839177] [2022-12-14 09:45:22,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:45:22,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:45:22,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:45:23,873 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:45:23,873 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:45:23,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794839177] [2022-12-14 09:45:23,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794839177] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:45:23,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1523763489] [2022-12-14 09:45:23,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:45:23,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:45:23,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:45:23,874 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:45:23,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-12-14 09:45:23,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:45:23,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 100 conjunts are in the unsatisfiable core [2022-12-14 09:45:23,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:45:23,998 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 09:45:24,004 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 09:45:24,007 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 09:45:24,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:24,016 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-14 09:45:24,029 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 09:45:24,030 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-14 09:45:24,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:24,038 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-14 09:45:24,086 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 09:45:24,090 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-12-14 09:45:24,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:24,119 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 09:45:24,119 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 54 [2022-12-14 09:45:24,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:24,124 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 48 [2022-12-14 09:45:24,209 INFO L321 Elim1Store]: treesize reduction 48, result has 36.0 percent of original size [2022-12-14 09:45:24,209 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 41 [2022-12-14 09:45:24,275 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-12-14 09:45:24,276 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 54 treesize of output 54 [2022-12-14 09:45:24,284 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 30 [2022-12-14 09:45:24,309 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-12-14 09:45:24,309 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 54 treesize of output 54 [2022-12-14 09:45:24,323 INFO L321 Elim1Store]: treesize reduction 12, result has 58.6 percent of original size [2022-12-14 09:45:24,324 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 25 treesize of output 29 [2022-12-14 09:45:24,336 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 30 [2022-12-14 09:45:24,405 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-12-14 09:45:24,405 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 58 treesize of output 47 [2022-12-14 09:45:24,411 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 30 [2022-12-14 09:45:24,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:24,490 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-12-14 09:45:24,490 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 80 treesize of output 64 [2022-12-14 09:45:24,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:24,504 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 46 [2022-12-14 09:45:25,539 INFO L321 Elim1Store]: treesize reduction 97, result has 10.2 percent of original size [2022-12-14 09:45:25,539 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 10 new quantified variables, introduced 14 case distinctions, treesize of input 168 treesize of output 86 [2022-12-14 09:45:25,554 INFO L321 Elim1Store]: treesize reduction 10, result has 41.2 percent of original size [2022-12-14 09:45:25,554 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 25 [2022-12-14 09:45:25,558 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:45:25,558 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:45:25,883 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:45:25,883 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2022-12-14 09:45:25,890 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:45:25,890 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 53 [2022-12-14 09:45:45,405 INFO L321 Elim1Store]: treesize reduction 109, result has 31.4 percent of original size [2022-12-14 09:45:45,405 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 240 treesize of output 253 [2022-12-14 09:45:45,411 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:45:45,469 INFO L321 Elim1Store]: treesize reduction 95, result has 40.3 percent of original size [2022-12-14 09:45:45,470 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 203 treesize of output 119 [2022-12-14 09:45:45,475 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:45:45,475 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:45:45,495 INFO L321 Elim1Store]: treesize reduction 17, result has 32.0 percent of original size [2022-12-14 09:45:45,495 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 91 treesize of output 81 [2022-12-14 09:45:45,501 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:45:45,502 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:45:45,503 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:45:45,505 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:45:45,528 INFO L321 Elim1Store]: treesize reduction 20, result has 51.2 percent of original size [2022-12-14 09:45:45,529 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 151 treesize of output 149 [2022-12-14 09:45:45,538 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 36 treesize of output 34 [2022-12-14 09:45:45,567 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:45:45,567 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:45:45,569 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-12-14 09:45:45,595 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 42 treesize of output 36 [2022-12-14 09:45:45,630 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:45:45,630 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 150 treesize of output 148 [2022-12-14 09:45:45,919 INFO L321 Elim1Store]: treesize reduction 114, result has 28.3 percent of original size [2022-12-14 09:45:45,919 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 192 treesize of output 163 [2022-12-14 09:45:45,926 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:45:45,990 INFO L321 Elim1Store]: treesize reduction 119, result has 25.2 percent of original size [2022-12-14 09:45:45,991 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 118 treesize of output 84 [2022-12-14 09:45:45,995 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:45:45,996 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:45:46,011 INFO L321 Elim1Store]: treesize reduction 72, result has 5.3 percent of original size [2022-12-14 09:45:46,011 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 241 treesize of output 200 [2022-12-14 09:45:46,017 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:45:46,018 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:45:46,018 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:45:46,026 INFO L321 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size [2022-12-14 09:45:46,026 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 93 treesize of output 61 [2022-12-14 09:45:46,038 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:45:46,038 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 54 treesize of output 56 [2022-12-14 09:45:46,045 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 22 treesize of output 20 [2022-12-14 09:45:50,556 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 7 refuted. 1 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:45:50,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1523763489] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:45:50,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1060506347] [2022-12-14 09:45:50,557 INFO L159 IcfgInterpreter]: Started Sifa with 39 locations of interest [2022-12-14 09:45:50,557 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:45:50,557 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:45:50,558 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:45:50,558 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:45:50,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:50,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:50,585 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 09:45:50,597 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:45:50,603 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:45:50,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:50,610 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-12-14 09:45:50,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:50,634 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 09:45:50,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:50,642 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 09:45:50,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:50,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:50,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:50,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:50,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:50,652 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-12-14 09:45:50,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:50,663 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 09:45:50,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:50,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:50,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:50,683 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 38 [2022-12-14 09:45:50,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:50,696 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 09:45:50,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:50,704 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 09:45:50,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:50,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:50,723 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 09:45:50,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:50,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:50,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:50,736 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 38 [2022-12-14 09:45:50,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:50,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:50,749 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 09:45:50,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:50,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:50,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:50,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:50,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:50,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:50,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:50,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:50,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:50,783 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 47 [2022-12-14 09:45:50,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:50,827 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-12-14 09:45:50,828 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 143 treesize of output 111 [2022-12-14 09:45:50,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:50,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:50,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:50,844 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 40 [2022-12-14 09:45:50,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:50,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:50,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:50,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:50,860 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2022-12-14 09:45:50,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:50,895 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:45:50,911 INFO L321 Elim1Store]: treesize reduction 47, result has 13.0 percent of original size [2022-12-14 09:45:50,912 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 177 treesize of output 129 [2022-12-14 09:45:50,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:50,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:50,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:50,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:50,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:50,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:50,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:50,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:50,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:50,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:50,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:50,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:50,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:50,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:50,945 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 55 [2022-12-14 09:45:50,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:50,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:50,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:50,958 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 49 [2022-12-14 09:45:50,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:50,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:50,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:50,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:50,973 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 45 [2022-12-14 09:45:51,026 INFO L321 Elim1Store]: treesize reduction 72, result has 23.4 percent of original size [2022-12-14 09:45:51,026 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 169 treesize of output 136 [2022-12-14 09:45:51,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:51,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:51,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:51,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:51,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:51,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:51,046 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 52 [2022-12-14 09:45:51,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:51,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:51,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:51,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:51,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:51,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:51,067 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 57 [2022-12-14 09:45:51,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:51,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:51,123 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:45:51,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:51,125 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:45:51,125 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:45:51,144 INFO L321 Elim1Store]: treesize reduction 77, result has 8.3 percent of original size [2022-12-14 09:45:51,144 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 483 treesize of output 486 [2022-12-14 09:45:51,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:51,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:51,161 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:45:51,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:51,162 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:45:51,163 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:45:51,181 INFO L321 Elim1Store]: treesize reduction 65, result has 9.7 percent of original size [2022-12-14 09:45:51,181 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 495 treesize of output 457 [2022-12-14 09:45:51,194 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:45:51,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:51,196 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:45:51,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:51,225 INFO L321 Elim1Store]: treesize reduction 80, result has 33.9 percent of original size [2022-12-14 09:45:51,225 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 639 treesize of output 606 [2022-12-14 09:45:51,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:51,567 INFO L321 Elim1Store]: treesize reduction 296, result has 15.9 percent of original size [2022-12-14 09:45:51,568 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 19 case distinctions, treesize of input 1230 treesize of output 1211 [2022-12-14 09:45:51,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:51,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:51,943 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:45:51,946 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:45:52,071 INFO L321 Elim1Store]: treesize reduction 194, result has 16.0 percent of original size [2022-12-14 09:45:52,072 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 1572 treesize of output 983 [2022-12-14 09:45:52,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:52,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:52,106 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:45:52,106 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:45:52,171 INFO L321 Elim1Store]: treesize reduction 292, result has 17.7 percent of original size [2022-12-14 09:45:52,171 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 17 case distinctions, treesize of input 1562 treesize of output 1421 [2022-12-14 09:45:52,238 INFO L321 Elim1Store]: treesize reduction 152, result has 14.1 percent of original size [2022-12-14 09:45:52,239 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 7 case distinctions, treesize of input 1520 treesize of output 1381 [2022-12-14 09:45:53,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:53,140 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:45:53,143 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:45:53,146 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:45:53,275 INFO L321 Elim1Store]: treesize reduction 246, result has 10.2 percent of original size [2022-12-14 09:45:53,276 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 23 case distinctions, treesize of input 5753 treesize of output 3464 [2022-12-14 09:45:53,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:53,341 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:45:53,342 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:45:53,342 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:45:53,425 INFO L321 Elim1Store]: treesize reduction 340, result has 9.1 percent of original size [2022-12-14 09:45:53,426 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 23 case distinctions, treesize of input 5771 treesize of output 5058 [2022-12-14 09:45:53,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:53,506 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:45:53,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:53,609 INFO L321 Elim1Store]: treesize reduction 156, result has 23.9 percent of original size [2022-12-14 09:45:53,610 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 7 case distinctions, treesize of input 5740 treesize of output 5146 [2022-12-14 09:45:53,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:53,853 INFO L321 Elim1Store]: treesize reduction 410, result has 13.7 percent of original size [2022-12-14 09:45:53,853 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 26 case distinctions, treesize of input 5640 treesize of output 5386 [2022-12-14 09:45:58,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:58,687 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:45:58,687 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:45:58,820 INFO L321 Elim1Store]: treesize reduction 250, result has 15.0 percent of original size [2022-12-14 09:45:58,820 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 25 case distinctions, treesize of input 23399 treesize of output 13925 [2022-12-14 09:45:59,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:59,082 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:45:59,083 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:45:59,239 INFO L321 Elim1Store]: treesize reduction 364, result has 16.1 percent of original size [2022-12-14 09:45:59,239 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 24 case distinctions, treesize of input 23193 treesize of output 20371 [2022-12-14 09:45:59,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:59,550 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:45:59,609 INFO L321 Elim1Store]: treesize reduction 190, result has 11.6 percent of original size [2022-12-14 09:45:59,610 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 22968 treesize of output 20758 [2022-12-14 09:46:07,792 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:46:07,798 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 09:46:07,803 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:46:07,821 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 09:46:07,822 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-12-14 09:46:07,841 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 09:46:07,841 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 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-14 09:46:07,852 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:46:07,858 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:46:07,863 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 23 [2022-12-14 09:46:07,875 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:46:07,896 INFO L321 Elim1Store]: treesize reduction 24, result has 38.5 percent of original size [2022-12-14 09:46:07,896 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 33 [2022-12-14 09:46:07,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:07,908 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 09:46:07,934 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 09:46:07,934 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-12-14 09:46:07,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:07,943 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 26 [2022-12-14 09:46:07,957 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 09:46:07,968 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 33 [2022-12-14 09:46:07,977 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 18 [2022-12-14 09:46:07,988 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 09:46:07,994 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:46:07,999 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:46:08,702 INFO L321 Elim1Store]: treesize reduction 46, result has 37.8 percent of original size [2022-12-14 09:46:08,702 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 146 treesize of output 166 [2022-12-14 09:46:08,809 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 09:46:08,809 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 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-14 09:46:08,843 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 09:46:08,843 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 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-14 09:46:08,869 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 09:46:08,869 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 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-14 09:46:09,198 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:46:09,231 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-12-14 09:46:09,231 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 1035 treesize of output 1002 [2022-12-14 09:46:09,261 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-12-14 09:46:09,261 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 991 treesize of output 914 [2022-12-14 09:46:10,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:10,021 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 09:46:10,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:10,115 INFO L321 Elim1Store]: treesize reduction 70, result has 28.6 percent of original size [2022-12-14 09:46:10,116 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 8 case distinctions, treesize of input 2653 treesize of output 2582 [2022-12-14 09:46:10,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:10,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:10,158 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 2550 treesize of output 2352 [2022-12-14 09:46:10,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:10,236 INFO L321 Elim1Store]: treesize reduction 39, result has 30.4 percent of original size [2022-12-14 09:46:10,236 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 2563 treesize of output 2504 [2022-12-14 09:46:13,118 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 09:46:13,118 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-12-14 09:46:13,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:13,167 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-12-14 09:46:13,167 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 1 [2022-12-14 09:46:13,354 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 09:46:13,354 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 29 [2022-12-14 09:46:13,464 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 09:46:13,465 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-12-14 09:46:13,539 INFO L321 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2022-12-14 09:46:13,539 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 1 [2022-12-14 09:46:13,707 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-12-14 09:46:13,707 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 1 [2022-12-14 09:46:13,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:13,739 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 25 [2022-12-14 09:46:13,787 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2022-12-14 09:46:13,826 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2022-12-14 09:46:13,919 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 09:46:13,919 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-12-14 09:46:14,009 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 09:46:14,009 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-12-14 09:46:14,240 INFO L197 IcfgInterpreter]: Interpreting procedure fail with input of size 89 for LOIs [2022-12-14 09:46:14,304 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:46:20,243 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '34947#(and (<= 0 |#NULL.base|) (<= |#NULL.offset| 0) (<= |#NULL.base| 0) (<= 0 |#NULL.offset|) (or (exists ((|v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| Int)) (and (<= 0 |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|) (exists ((|v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4| Int)) (and (= (select |#valid| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) 1) (<= (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 8) (select |#length| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|)) (<= 0 (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) (not (= |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4| 0)) (= (select |#valid| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) 1) (not (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) 0)) (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 4)) 0) (<= (+ (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|) 4) (select |#length| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|))) (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 4)) 0) (not (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|) 0)))))) (exists ((|v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| Int)) (and (exists ((|v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4| Int)) (and (= (select |#valid| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) 1) (<= (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 8) (select |#length| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|)) (<= 0 (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) (= (select |#valid| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) 1) (not (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) 0)) (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 4)) 0) (<= (+ (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|) 4) (select |#length| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|))) (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 4)) 0) (not (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|) 0)))) (<= 0 |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|) (not (= |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 0)))) (exists ((|v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| Int)) (and (<= 0 |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|) (exists ((|v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4| Int)) (and (= (select |#valid| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) 1) (<= (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 8) (select |#length| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|)) (<= 0 (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) (= (select |#valid| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) 1) (not (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|) 0)) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) 0)) (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 4)) 0) (<= (+ (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|) 4) (select |#length| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|))) (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 4)) 0))) (not (= |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 0)))) (exists ((|v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| Int)) (and (<= 0 |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|) (exists ((|v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4| Int)) (and (= (select |#valid| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) 1) (<= (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 8) (select |#length| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|)) (<= 0 (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) (not (= |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4| 0)) (= (select |#valid| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) 1) (not (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|) 0)) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) 0)) (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 4)) 0) (<= (+ (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|) 4) (select |#length| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|))) (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 4)) 0))))) (exists ((|v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| Int)) (and (exists ((|v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4| Int)) (and (= (select |#valid| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) 1) (<= (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 8) (select |#length| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|)) (<= 0 (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) (not (= |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4| 0)) (= (select |#valid| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) 1) (not (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|) 0)) (not (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) 0)) (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 4)) 0) (<= (+ (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|) 4) (select |#length| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|))) (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 4)) 0))) (<= 0 |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|))) (exists ((|v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| Int)) (and (<= 0 |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|) (exists ((|v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4| Int)) (and (= (select |#valid| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) 1) (<= (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 8) (select |#length| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|)) (<= 0 (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) (not (= |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4| 0)) (= (select |#valid| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) 1) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) 0)) (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 4)) 0) (<= (+ (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|) 4) (select |#length| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|))) (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 4)) 0) (not (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|) 0)))))) (exists ((|v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| Int)) (and (<= 0 |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|) (exists ((|v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4| Int)) (and (= (select |#valid| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) 1) (<= (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 8) (select |#length| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|)) (<= 0 (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) (= (select |#valid| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) 1) (not (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|) 0)) (not (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) 0)) (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 4)) 0) (<= (+ (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|) 4) (select |#length| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|))) (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 4)) 0))) (not (= |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 0)))) (exists ((|v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| Int)) (and (exists ((|v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4| Int)) (and (= (select |#valid| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) 1) (<= (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 8) (select |#length| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|)) (<= 0 (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) (= (select |#valid| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) 1) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) 0)) (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 4)) 0) (<= (+ (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|) 4) (select |#length| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|))) (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 4)) 0) (not (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|) 0)))) (<= 0 |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|) (not (= |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 0))))) (<= 0 |#StackHeapBarrier|))' at error location [2022-12-14 09:46:20,243 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 09:46:20,243 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:46:20,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 15, 16] total 40 [2022-12-14 09:46:20,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314851261] [2022-12-14 09:46:20,244 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 09:46:20,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-12-14 09:46:20,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:46:20,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-12-14 09:46:20,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=287, Invalid=3994, Unknown=9, NotChecked=0, Total=4290 [2022-12-14 09:46:20,245 INFO L87 Difference]: Start difference. First operand 328 states and 361 transitions. Second operand has 40 states, 40 states have (on average 2.975) internal successors, (119), 40 states have internal predecessors, (119), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:46:31,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:46:31,092 INFO L93 Difference]: Finished difference Result 627 states and 675 transitions. [2022-12-14 09:46:31,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-12-14 09:46:31,092 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 2.975) internal successors, (119), 40 states have internal predecessors, (119), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2022-12-14 09:46:31,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:46:31,095 INFO L225 Difference]: With dead ends: 627 [2022-12-14 09:46:31,095 INFO L226 Difference]: Without dead ends: 627 [2022-12-14 09:46:31,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 97 SyntacticMatches, 4 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2229 ImplicationChecksByTransitivity, 35.0s TimeCoverageRelationStatistics Valid=869, Invalid=7494, Unknown=9, NotChecked=0, Total=8372 [2022-12-14 09:46:31,096 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 3200 mSDsluCounter, 3394 mSDsCounter, 0 mSdLazyCounter, 3196 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3202 SdHoareTripleChecker+Valid, 3590 SdHoareTripleChecker+Invalid, 3246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 3196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-12-14 09:46:31,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3202 Valid, 3590 Invalid, 3246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 3196 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2022-12-14 09:46:31,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2022-12-14 09:46:31,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 329. [2022-12-14 09:46:31,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 241 states have (on average 1.4564315352697095) internal successors, (351), 326 states have internal predecessors, (351), 9 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:46:31,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 362 transitions. [2022-12-14 09:46:31,099 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 362 transitions. Word has length 48 [2022-12-14 09:46:31,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:46:31,099 INFO L495 AbstractCegarLoop]: Abstraction has 329 states and 362 transitions. [2022-12-14 09:46:31,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 2.975) internal successors, (119), 40 states have internal predecessors, (119), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:46:31,100 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 362 transitions. [2022-12-14 09:46:31,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-12-14 09:46:31,100 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:46:31,100 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:46:31,105 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-12-14 09:46:31,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:46:31,302 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr82ASSERT_VIOLATIONMEMORY_FREE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-12-14 09:46:31,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:46:31,303 INFO L85 PathProgramCache]: Analyzing trace with hash 168125297, now seen corresponding path program 1 times [2022-12-14 09:46:31,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:46:31,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090429371] [2022-12-14 09:46:31,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:46:31,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:46:31,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:46:31,373 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:46:31,373 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:46:31,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090429371] [2022-12-14 09:46:31,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090429371] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:46:31,373 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:46:31,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:46:31,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042859078] [2022-12-14 09:46:31,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:46:31,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 09:46:31,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:46:31,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 09:46:31,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 09:46:31,374 INFO L87 Difference]: Start difference. First operand 329 states and 362 transitions. Second operand has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:46:31,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:46:31,488 INFO L93 Difference]: Finished difference Result 402 states and 440 transitions. [2022-12-14 09:46:31,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 09:46:31,489 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2022-12-14 09:46:31,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:46:31,491 INFO L225 Difference]: With dead ends: 402 [2022-12-14 09:46:31,491 INFO L226 Difference]: Without dead ends: 402 [2022-12-14 09:46:31,491 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 09:46:31,491 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 399 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:46:31,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [401 Valid, 300 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:46:31,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2022-12-14 09:46:31,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 330. [2022-12-14 09:46:31,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 242 states have (on average 1.4545454545454546) internal successors, (352), 327 states have internal predecessors, (352), 9 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:46:31,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 363 transitions. [2022-12-14 09:46:31,494 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 363 transitions. Word has length 49 [2022-12-14 09:46:31,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:46:31,495 INFO L495 AbstractCegarLoop]: Abstraction has 330 states and 363 transitions. [2022-12-14 09:46:31,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:46:31,495 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 363 transitions. [2022-12-14 09:46:31,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-12-14 09:46:31,495 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:46:31,495 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:46:31,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-12-14 09:46:31,495 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-12-14 09:46:31,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:46:31,495 INFO L85 PathProgramCache]: Analyzing trace with hash -556748152, now seen corresponding path program 1 times [2022-12-14 09:46:31,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:46:31,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243675031] [2022-12-14 09:46:31,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:46:31,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:46:31,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:46:32,393 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 11 proven. 23 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 09:46:32,393 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:46:32,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243675031] [2022-12-14 09:46:32,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243675031] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:46:32,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1696943370] [2022-12-14 09:46:32,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:46:32,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:46:32,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:46:32,394 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:46:32,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-12-14 09:46:32,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:46:32,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 67 conjunts are in the unsatisfiable core [2022-12-14 09:46:32,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:46:32,523 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 09:46:32,540 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 09:46:32,540 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-14 09:46:32,579 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:46:32,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:32,617 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 26 [2022-12-14 09:46:32,682 INFO L321 Elim1Store]: treesize reduction 48, result has 36.0 percent of original size [2022-12-14 09:46:32,683 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 41 [2022-12-14 09:46:32,741 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 30 [2022-12-14 09:46:32,759 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 30 [2022-12-14 09:46:32,795 INFO L321 Elim1Store]: treesize reduction 66, result has 35.3 percent of original size [2022-12-14 09:46:32,795 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 31 treesize of output 53 [2022-12-14 09:46:32,863 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 36 [2022-12-14 09:46:32,883 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:46:32,888 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 34 [2022-12-14 09:46:33,610 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-14 09:46:33,960 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:46:33,961 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 37 [2022-12-14 09:46:34,024 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 18 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 09:46:34,024 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:46:34,255 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:46:34,255 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 21 [2022-12-14 09:46:36,602 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:46:36,602 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 40 [2022-12-14 09:46:36,608 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 186 treesize of output 174 [2022-12-14 09:46:36,612 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 170 treesize of output 166 [2022-12-14 09:46:36,621 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:46:36,621 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 172 treesize of output 170 [2022-12-14 09:46:37,224 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 09:46:37,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1696943370] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:46:37,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1674212525] [2022-12-14 09:46:37,225 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2022-12-14 09:46:37,225 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:46:37,225 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:46:37,225 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:46:37,226 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:46:37,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,245 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 09:46:37,258 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:46:37,265 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:46:37,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,272 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-12-14 09:46:37,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,287 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 09:46:37,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,296 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 09:46:37,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,305 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 09:46:37,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,318 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-12-14 09:46:37,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,339 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 38 [2022-12-14 09:46:37,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,351 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 09:46:37,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,361 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 09:46:37,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,378 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 09:46:37,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,389 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 09:46:37,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,403 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 38 [2022-12-14 09:46:37,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,441 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 56 [2022-12-14 09:46:37,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,490 INFO L321 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2022-12-14 09:46:37,490 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 163 treesize of output 131 [2022-12-14 09:46:37,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,507 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 46 [2022-12-14 09:46:37,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,520 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 86 [2022-12-14 09:46:37,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,563 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:46:37,582 INFO L321 Elim1Store]: treesize reduction 47, result has 13.0 percent of original size [2022-12-14 09:46:37,582 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 177 treesize of output 129 [2022-12-14 09:46:37,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,624 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 55 [2022-12-14 09:46:37,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,642 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 45 [2022-12-14 09:46:37,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,662 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 49 [2022-12-14 09:46:37,722 INFO L321 Elim1Store]: treesize reduction 72, result has 23.4 percent of original size [2022-12-14 09:46:37,723 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 169 treesize of output 136 [2022-12-14 09:46:37,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,742 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 52 [2022-12-14 09:46:37,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,762 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 57 [2022-12-14 09:46:37,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,822 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:46:37,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,824 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:46:37,824 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:46:37,843 INFO L321 Elim1Store]: treesize reduction 65, result has 9.7 percent of original size [2022-12-14 09:46:37,843 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 490 treesize of output 452 [2022-12-14 09:46:37,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,856 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:46:37,856 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:46:37,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,884 INFO L321 Elim1Store]: treesize reduction 80, result has 33.9 percent of original size [2022-12-14 09:46:37,884 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 634 treesize of output 601 [2022-12-14 09:46:37,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,897 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:46:37,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:37,899 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:46:37,899 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:46:37,918 INFO L321 Elim1Store]: treesize reduction 131, result has 9.0 percent of original size [2022-12-14 09:46:37,918 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 600 treesize of output 603 [2022-12-14 09:46:38,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:38,240 INFO L321 Elim1Store]: treesize reduction 296, result has 15.9 percent of original size [2022-12-14 09:46:38,240 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 19 case distinctions, treesize of input 1244 treesize of output 1221 [2022-12-14 09:46:38,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:38,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:38,783 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:46:38,785 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:46:38,869 INFO L321 Elim1Store]: treesize reduction 194, result has 16.0 percent of original size [2022-12-14 09:46:38,869 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 3120 treesize of output 1919 [2022-12-14 09:46:38,985 INFO L321 Elim1Store]: treesize reduction 152, result has 14.1 percent of original size [2022-12-14 09:46:38,985 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 7 case distinctions, treesize of input 3068 treesize of output 2757 [2022-12-14 09:46:39,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:39,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:39,022 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:46:39,022 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:46:39,108 INFO L321 Elim1Store]: treesize reduction 292, result has 17.7 percent of original size [2022-12-14 09:46:39,109 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 17 case distinctions, treesize of input 3082 treesize of output 2713 [2022-12-14 09:46:39,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:39,806 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:46:39,808 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:46:39,813 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:46:39,894 INFO L321 Elim1Store]: treesize reduction 246, result has 10.2 percent of original size [2022-12-14 09:46:39,895 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 23 case distinctions, treesize of input 3845 treesize of output 2358 [2022-12-14 09:46:39,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:39,953 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:46:39,954 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:46:39,954 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:46:40,027 INFO L321 Elim1Store]: treesize reduction 340, result has 9.1 percent of original size [2022-12-14 09:46:40,027 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 22 case distinctions, treesize of input 3863 treesize of output 3400 [2022-12-14 09:46:40,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:40,253 INFO L321 Elim1Store]: treesize reduction 410, result has 13.7 percent of original size [2022-12-14 09:46:40,253 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 26 case distinctions, treesize of input 3844 treesize of output 3650 [2022-12-14 09:46:40,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:40,320 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:46:40,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:40,374 INFO L321 Elim1Store]: treesize reduction 156, result has 23.9 percent of original size [2022-12-14 09:46:40,374 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 7 case distinctions, treesize of input 3796 treesize of output 3438 [2022-12-14 09:46:41,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:41,731 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:46:41,734 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:46:41,885 INFO L321 Elim1Store]: treesize reduction 250, result has 15.0 percent of original size [2022-12-14 09:46:41,886 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 25 case distinctions, treesize of input 7664 treesize of output 4614 [2022-12-14 09:46:41,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:41,983 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:46:42,039 INFO L321 Elim1Store]: treesize reduction 190, result has 11.6 percent of original size [2022-12-14 09:46:42,040 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 7639 treesize of output 6965 [2022-12-14 09:46:42,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:42,131 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:46:42,131 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:46:42,253 INFO L321 Elim1Store]: treesize reduction 364, result has 16.1 percent of original size [2022-12-14 09:46:42,253 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 24 case distinctions, treesize of input 7640 treesize of output 6802 [2022-12-14 09:46:44,187 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 09:46:44,190 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:46:44,193 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:46:44,208 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 09:46:44,208 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-12-14 09:46:44,226 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 09:46:44,226 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 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-14 09:46:44,235 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:46:44,241 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:46:44,245 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-14 09:46:44,257 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:46:44,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:44,262 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-12-14 09:46:44,283 INFO L321 Elim1Store]: treesize reduction 24, result has 38.5 percent of original size [2022-12-14 09:46:44,283 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 31 [2022-12-14 09:46:44,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:44,292 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 09:46:44,317 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 09:46:44,317 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-12-14 09:46:44,331 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 09:46:44,338 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-12-14 09:46:44,346 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 18 [2022-12-14 09:46:44,359 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 09:46:44,361 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:46:44,364 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:46:44,937 INFO L321 Elim1Store]: treesize reduction 46, result has 37.8 percent of original size [2022-12-14 09:46:44,937 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 125 treesize of output 145 [2022-12-14 09:46:45,029 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 09:46:45,029 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 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-14 09:46:45,059 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 09:46:45,059 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 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-14 09:46:45,160 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:46:45,183 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-12-14 09:46:45,183 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 418 treesize of output 421 [2022-12-14 09:46:45,204 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-12-14 09:46:45,204 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 410 treesize of output 381 [2022-12-14 09:46:45,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:45,391 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 09:46:45,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:45,451 INFO L321 Elim1Store]: treesize reduction 70, result has 28.6 percent of original size [2022-12-14 09:46:45,451 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 8 case distinctions, treesize of input 857 treesize of output 850 [2022-12-14 09:46:45,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:45,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:45,469 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 818 treesize of output 768 [2022-12-14 09:46:45,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:45,514 INFO L321 Elim1Store]: treesize reduction 39, result has 30.4 percent of original size [2022-12-14 09:46:45,515 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 831 treesize of output 814 [2022-12-14 09:46:46,563 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 09:46:46,564 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-12-14 09:46:46,606 INFO L321 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2022-12-14 09:46:46,607 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 1 [2022-12-14 09:46:46,623 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-12-14 09:46:46,624 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 1 [2022-12-14 09:46:46,957 INFO L321 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2022-12-14 09:46:46,957 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 1 [2022-12-14 09:46:46,991 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2022-12-14 09:46:47,015 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2022-12-14 09:46:47,053 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-12-14 09:46:47,053 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 1 [2022-12-14 09:46:47,091 INFO L321 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2022-12-14 09:46:47,092 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 1 [2022-12-14 09:46:47,273 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:46:49,923 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '37061#(and (<= 0 |#NULL.base|) (<= 0 |ULTIMATE.start_inspect_before_~shape#1.offset|) (= (select |#valid| |ULTIMATE.start_inspect_before_~shape#1.base|) 1) (<= (+ 4 |ULTIMATE.start_inspect_before_~shape#1.offset|) (select |#length| |ULTIMATE.start_inspect_before_~shape#1.base|)) (<= 0 |ULTIMATE.start_main_~item~0#1.offset|) (<= 0 |ULTIMATE.start_main_~node~1#1.offset|) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_inspect_before_#in~shape#1.offset|) (or (not (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|) 0)) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|) 0))) (<= |ULTIMATE.start_main_~item~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~data~0#1.offset|) (<= |#NULL.base| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|) |ULTIMATE.start_inspect_before_#t~mem24#1.offset|) (not (= (select |#valid| |ULTIMATE.start_inspect_before_#t~mem24#1.base|) 1)) (<= 0 |#NULL.offset|) (= |ULTIMATE.start_inspect_before_#t~mem24#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|)) (<= |ULTIMATE.start_main_~data~0#1.offset| 0) (<= |ULTIMATE.start_inspect_before_#in~shape#1.offset| 0) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~node~1#1.offset| 0))' at error location [2022-12-14 09:46:49,923 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 09:46:49,923 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:46:49,923 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 12, 14] total 38 [2022-12-14 09:46:49,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675173112] [2022-12-14 09:46:49,923 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 09:46:49,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-12-14 09:46:49,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:46:49,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-12-14 09:46:49,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=244, Invalid=2946, Unknown=2, NotChecked=0, Total=3192 [2022-12-14 09:46:49,925 INFO L87 Difference]: Start difference. First operand 330 states and 363 transitions. Second operand has 39 states, 38 states have (on average 3.3421052631578947) internal successors, (127), 39 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:46:56,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:46:56,335 INFO L93 Difference]: Finished difference Result 562 states and 610 transitions. [2022-12-14 09:46:56,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-12-14 09:46:56,335 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 38 states have (on average 3.3421052631578947) internal successors, (127), 39 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2022-12-14 09:46:56,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:46:56,336 INFO L225 Difference]: With dead ends: 562 [2022-12-14 09:46:56,336 INFO L226 Difference]: Without dead ends: 562 [2022-12-14 09:46:56,337 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 117 SyntacticMatches, 1 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1446 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=756, Invalid=5248, Unknown=2, NotChecked=0, Total=6006 [2022-12-14 09:46:56,337 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 3002 mSDsluCounter, 2456 mSDsCounter, 0 mSdLazyCounter, 2727 mSolverCounterSat, 93 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3004 SdHoareTripleChecker+Valid, 2648 SdHoareTripleChecker+Invalid, 2821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 2727 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-12-14 09:46:56,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3004 Valid, 2648 Invalid, 2821 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 2727 Invalid, 1 Unknown, 0 Unchecked, 2.8s Time] [2022-12-14 09:46:56,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2022-12-14 09:46:56,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 331. [2022-12-14 09:46:56,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 243 states have (on average 1.4567901234567902) internal successors, (354), 328 states have internal predecessors, (354), 9 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:46:56,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 365 transitions. [2022-12-14 09:46:56,340 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 365 transitions. Word has length 51 [2022-12-14 09:46:56,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:46:56,341 INFO L495 AbstractCegarLoop]: Abstraction has 331 states and 365 transitions. [2022-12-14 09:46:56,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 38 states have (on average 3.3421052631578947) internal successors, (127), 39 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:46:56,341 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 365 transitions. [2022-12-14 09:46:56,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-12-14 09:46:56,341 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:46:56,341 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:46:56,346 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-12-14 09:46:56,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2022-12-14 09:46:56,543 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-12-14 09:46:56,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:46:56,544 INFO L85 PathProgramCache]: Analyzing trace with hash -556748151, now seen corresponding path program 1 times [2022-12-14 09:46:56,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:46:56,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815289590] [2022-12-14 09:46:56,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:46:56,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:46:56,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:46:57,721 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 09:46:57,722 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:46:57,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815289590] [2022-12-14 09:46:57,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815289590] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:46:57,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1730698595] [2022-12-14 09:46:57,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:46:57,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:46:57,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:46:57,723 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:46:57,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-12-14 09:46:57,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:46:57,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 83 conjunts are in the unsatisfiable core [2022-12-14 09:46:57,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:46:57,901 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 09:46:57,938 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 09:46:57,938 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 20 [2022-12-14 09:46:57,953 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 09:46:57,953 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-14 09:46:57,986 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 09:46:57,989 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:46:58,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:58,027 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-14 09:46:58,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:46:58,033 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 31 [2022-12-14 09:46:58,108 INFO L321 Elim1Store]: treesize reduction 48, result has 36.0 percent of original size [2022-12-14 09:46:58,108 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 41 [2022-12-14 09:46:58,120 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-14 09:46:58,173 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 37 [2022-12-14 09:46:58,186 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-14 09:46:58,201 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 37 [2022-12-14 09:46:58,206 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-14 09:46:58,223 INFO L321 Elim1Store]: treesize reduction 12, result has 58.6 percent of original size [2022-12-14 09:46:58,224 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 25 treesize of output 29 [2022-12-14 09:46:58,232 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-14 09:46:58,279 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 30 [2022-12-14 09:46:58,287 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-14 09:46:58,299 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 30 [2022-12-14 09:46:58,303 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2022-12-14 09:46:58,936 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:46:58,937 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 91 treesize of output 45 [2022-12-14 09:46:58,944 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-12-14 09:46:58,944 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 16 [2022-12-14 09:46:58,979 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 09:46:58,979 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:46:59,358 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:46:59,358 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2022-12-14 09:46:59,363 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:46:59,364 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 35 [2022-12-14 09:46:59,367 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:46:59,368 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 30 [2022-12-14 09:47:04,272 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:47:04,277 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:47:04,278 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 32 [2022-12-14 09:47:04,281 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 52 [2022-12-14 09:47:04,290 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:47:04,290 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 54 treesize of output 56 [2022-12-14 09:47:04,296 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 22 treesize of output 20 [2022-12-14 09:47:04,363 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:47:04,367 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:47:04,367 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 59 treesize of output 65 [2022-12-14 09:47:04,374 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 386 treesize of output 374 [2022-12-14 09:47:04,381 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:47:04,386 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:47:04,387 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 370 treesize of output 284 [2022-12-14 09:47:04,396 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 862 treesize of output 826 [2022-12-14 09:47:04,414 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:47:04,415 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 828 treesize of output 802 [2022-12-14 09:47:04,429 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 403 treesize of output 387 [2022-12-14 09:47:04,443 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:47:04,443 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 780 treesize of output 754 [2022-12-14 09:47:04,456 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 742 treesize of output 726 [2022-12-14 09:47:21,870 WARN L233 SmtUtils]: Spent 15.75s on a formula simplification. DAG size of input: 137 DAG size of output: 46 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:47:21,889 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 1025 treesize of output 1007 [2022-12-14 09:47:23,723 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 09:47:23,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1730698595] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:47:23,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [97084544] [2022-12-14 09:47:23,724 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2022-12-14 09:47:23,724 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:47:23,724 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:47:23,725 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:47:23,725 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:47:23,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:23,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:23,746 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 09:47:23,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:23,761 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-12-14 09:47:23,770 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:47:23,774 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:47:23,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:23,789 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 09:47:23,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:23,796 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 09:47:23,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:23,804 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 09:47:23,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:23,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:23,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:23,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:23,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:23,820 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-12-14 09:47:23,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:23,838 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 09:47:23,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:23,846 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 09:47:23,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:23,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:23,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:23,857 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 38 [2022-12-14 09:47:23,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:23,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:23,877 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 09:47:23,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:23,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:23,887 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 09:47:23,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:23,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:23,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:23,900 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 38 [2022-12-14 09:47:23,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:23,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:23,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:23,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:23,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:23,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:23,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:23,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:23,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:23,936 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 47 [2022-12-14 09:47:23,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:23,983 INFO L321 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2022-12-14 09:47:23,983 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 163 treesize of output 131 [2022-12-14 09:47:23,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:23,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:23,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:24,000 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 46 [2022-12-14 09:47:24,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:24,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:24,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:24,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:24,014 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 86 [2022-12-14 09:47:24,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:24,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:24,052 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:47:24,070 INFO L321 Elim1Store]: treesize reduction 49, result has 15.5 percent of original size [2022-12-14 09:47:24,071 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 179 treesize of output 131 [2022-12-14 09:47:24,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:24,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:24,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:24,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:24,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:24,090 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 47 [2022-12-14 09:47:24,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:24,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:24,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:24,105 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 49 [2022-12-14 09:47:24,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:24,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:24,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:24,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:24,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:24,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:24,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:24,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:24,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:24,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:24,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:24,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:24,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:24,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:24,141 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 55 [2022-12-14 09:47:24,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:24,237 INFO L321 Elim1Store]: treesize reduction 72, result has 23.4 percent of original size [2022-12-14 09:47:24,237 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 171 treesize of output 138 [2022-12-14 09:47:24,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:24,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:24,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:24,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:24,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:24,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:24,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:24,260 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2022-12-14 09:47:24,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:24,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:24,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:24,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:24,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:24,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:24,281 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 57 [2022-12-14 09:47:24,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:24,343 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:47:24,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:24,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:24,345 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:47:24,346 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:47:24,346 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:47:24,364 INFO L321 Elim1Store]: treesize reduction 79, result has 10.2 percent of original size [2022-12-14 09:47:24,364 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 487 treesize of output 490 [2022-12-14 09:47:24,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:24,380 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:47:24,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:24,382 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:47:24,411 INFO L321 Elim1Store]: treesize reduction 80, result has 33.9 percent of original size [2022-12-14 09:47:24,411 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 595 treesize of output 562 [2022-12-14 09:47:24,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:24,421 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:47:24,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:24,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:24,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:24,425 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:47:24,425 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:47:24,426 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:47:24,443 INFO L321 Elim1Store]: treesize reduction 73, result has 17.0 percent of original size [2022-12-14 09:47:24,443 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 592 treesize of output 488 [2022-12-14 09:47:24,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:24,729 INFO L321 Elim1Store]: treesize reduction 338, result has 16.7 percent of original size [2022-12-14 09:47:24,730 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 19 case distinctions, treesize of input 1412 treesize of output 1393 [2022-12-14 09:47:25,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:25,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:25,173 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:47:25,173 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:47:25,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:25,175 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:47:25,309 INFO L321 Elim1Store]: treesize reduction 122, result has 24.2 percent of original size [2022-12-14 09:47:25,309 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 2421 treesize of output 1344 [2022-12-14 09:47:25,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:25,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:25,343 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:47:25,454 INFO L321 Elim1Store]: treesize reduction 336, result has 14.3 percent of original size [2022-12-14 09:47:25,454 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 19 case distinctions, treesize of input 2422 treesize of output 2005 [2022-12-14 09:47:25,517 INFO L321 Elim1Store]: treesize reduction 49, result has 12.5 percent of original size [2022-12-14 09:47:25,518 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 6 case distinctions, treesize of input 2305 treesize of output 2154 [2022-12-14 09:47:26,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:26,484 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:47:26,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:26,486 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:47:26,487 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:47:26,487 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:47:26,543 INFO L321 Elim1Store]: treesize reduction 142, result has 15.0 percent of original size [2022-12-14 09:47:26,544 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 22 case distinctions, treesize of input 6065 treesize of output 3156 [2022-12-14 09:47:26,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:26,619 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:47:26,620 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:47:26,719 INFO L321 Elim1Store]: treesize reduction 388, result has 8.5 percent of original size [2022-12-14 09:47:26,719 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 23 case distinctions, treesize of input 6083 treesize of output 4878 [2022-12-14 09:47:26,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:27,021 INFO L321 Elim1Store]: treesize reduction 458, result has 14.4 percent of original size [2022-12-14 09:47:27,022 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 26 case distinctions, treesize of input 6064 treesize of output 5808 [2022-12-14 09:47:27,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:27,108 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:47:27,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:27,174 INFO L321 Elim1Store]: treesize reduction 100, result has 35.5 percent of original size [2022-12-14 09:47:27,175 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 7 case distinctions, treesize of input 5962 treesize of output 5650 [2022-12-14 09:47:30,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:30,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:30,973 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:47:30,973 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:47:30,974 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:47:31,089 INFO L321 Elim1Store]: treesize reduction 170, result has 21.3 percent of original size [2022-12-14 09:47:31,090 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 25 case distinctions, treesize of input 18683 treesize of output 9577 [2022-12-14 09:47:31,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:31,267 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:47:31,448 INFO L321 Elim1Store]: treesize reduction 416, result has 13.2 percent of original size [2022-12-14 09:47:31,449 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 26 case distinctions, treesize of input 18464 treesize of output 14848 [2022-12-14 09:47:31,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:31,668 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:47:31,702 INFO L321 Elim1Store]: treesize reduction 85, result has 7.6 percent of original size [2022-12-14 09:47:31,702 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 18140 treesize of output 17194 [2022-12-14 09:47:38,390 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:47:38,395 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:47:38,399 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 09:47:38,421 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 09:47:38,421 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 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-14 09:47:38,427 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-14 09:47:38,438 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:47:38,444 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-14 09:47:38,451 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:47:38,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:38,465 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2022-12-14 09:47:38,497 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 09:47:38,498 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-12-14 09:47:38,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:38,506 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 09:47:38,512 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:47:38,520 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2022-12-14 09:47:38,534 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 18 [2022-12-14 09:47:38,543 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 09:47:38,552 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 09:47:38,563 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 09:47:38,567 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:47:38,572 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:47:39,156 INFO L321 Elim1Store]: treesize reduction 46, result has 37.8 percent of original size [2022-12-14 09:47:39,156 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 125 treesize of output 145 [2022-12-14 09:47:39,231 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 09:47:39,232 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 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-14 09:47:39,254 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-12-14 09:47:39,254 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 2 case distinctions, treesize of input 17 treesize of output 1 [2022-12-14 09:47:39,375 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-12-14 09:47:39,375 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 351 treesize of output 360 [2022-12-14 09:47:39,397 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-12-14 09:47:39,397 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 349 treesize of output 320 [2022-12-14 09:47:39,532 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:47:39,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:39,653 INFO L321 Elim1Store]: treesize reduction 70, result has 28.6 percent of original size [2022-12-14 09:47:39,653 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 8 case distinctions, treesize of input 745 treesize of output 744 [2022-12-14 09:47:39,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:39,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:39,676 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 712 treesize of output 662 [2022-12-14 09:47:39,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:39,720 INFO L321 Elim1Store]: treesize reduction 39, result has 30.4 percent of original size [2022-12-14 09:47:39,720 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 725 treesize of output 714 [2022-12-14 09:47:40,259 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 09:47:40,259 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-12-14 09:47:40,303 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 09:47:40,303 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-12-14 09:47:40,365 INFO L321 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2022-12-14 09:47:40,366 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 1 [2022-12-14 09:47:40,385 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2022-12-14 09:47:40,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:40,427 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 09:47:40,445 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:47:43,340 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '38356#(and (<= 0 |#NULL.base|) (or (not (<= (+ |ULTIMATE.start_inspect_before_#t~mem24#1.offset| 4) (select |#length| |ULTIMATE.start_inspect_before_#t~mem24#1.base|))) (not (<= 0 |ULTIMATE.start_inspect_before_#t~mem24#1.offset|))) (<= 0 |ULTIMATE.start_inspect_before_~shape#1.offset|) (= (select |#valid| |ULTIMATE.start_inspect_before_~shape#1.base|) 1) (<= (+ 4 |ULTIMATE.start_inspect_before_~shape#1.offset|) (select |#length| |ULTIMATE.start_inspect_before_~shape#1.base|)) (<= 0 |ULTIMATE.start_main_~item~0#1.offset|) (<= 0 |ULTIMATE.start_main_~node~1#1.offset|) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_inspect_before_#in~shape#1.offset|) (or (not (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|) 0)) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|) 0))) (<= |ULTIMATE.start_main_~item~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~data~0#1.offset|) (<= |#NULL.base| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|) |ULTIMATE.start_inspect_before_#t~mem24#1.offset|) (<= 0 |#NULL.offset|) (= |ULTIMATE.start_inspect_before_#t~mem24#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|)) (<= |ULTIMATE.start_main_~data~0#1.offset| 0) (<= |ULTIMATE.start_inspect_before_#in~shape#1.offset| 0) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~node~1#1.offset| 0))' at error location [2022-12-14 09:47:43,340 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 09:47:43,340 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:47:43,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 11, 13] total 38 [2022-12-14 09:47:43,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931204822] [2022-12-14 09:47:43,340 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 09:47:43,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-12-14 09:47:43,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:47:43,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-12-14 09:47:43,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=233, Invalid=2957, Unknown=2, NotChecked=0, Total=3192 [2022-12-14 09:47:43,341 INFO L87 Difference]: Start difference. First operand 331 states and 365 transitions. Second operand has 39 states, 38 states have (on average 3.6842105263157894) internal successors, (140), 39 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:47:51,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:47:51,990 INFO L93 Difference]: Finished difference Result 699 states and 756 transitions. [2022-12-14 09:47:51,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-12-14 09:47:51,990 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 38 states have (on average 3.6842105263157894) internal successors, (140), 39 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2022-12-14 09:47:51,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:47:51,991 INFO L225 Difference]: With dead ends: 699 [2022-12-14 09:47:51,991 INFO L226 Difference]: Without dead ends: 699 [2022-12-14 09:47:51,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 118 SyntacticMatches, 1 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1444 ImplicationChecksByTransitivity, 29.8s TimeCoverageRelationStatistics Valid=897, Invalid=5743, Unknown=2, NotChecked=0, Total=6642 [2022-12-14 09:47:51,992 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 4047 mSDsluCounter, 2336 mSDsCounter, 0 mSdLazyCounter, 3892 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4049 SdHoareTripleChecker+Valid, 2501 SdHoareTripleChecker+Invalid, 3996 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 3892 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-12-14 09:47:51,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4049 Valid, 2501 Invalid, 3996 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 3892 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-12-14 09:47:51,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2022-12-14 09:47:51,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 331. [2022-12-14 09:47:51,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 243 states have (on average 1.4526748971193415) internal successors, (353), 328 states have internal predecessors, (353), 9 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:47:51,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 364 transitions. [2022-12-14 09:47:51,996 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 364 transitions. Word has length 51 [2022-12-14 09:47:51,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:47:51,996 INFO L495 AbstractCegarLoop]: Abstraction has 331 states and 364 transitions. [2022-12-14 09:47:51,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 38 states have (on average 3.6842105263157894) internal successors, (140), 39 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:47:51,996 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 364 transitions. [2022-12-14 09:47:51,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-12-14 09:47:51,996 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:47:51,996 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:47:52,001 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-12-14 09:47:52,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2022-12-14 09:47:52,198 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr84REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-12-14 09:47:52,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:47:52,199 INFO L85 PathProgramCache]: Analyzing trace with hash 689402232, now seen corresponding path program 1 times [2022-12-14 09:47:52,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:47:52,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338430094] [2022-12-14 09:47:52,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:47:52,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:47:52,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:47:52,421 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:47:52,421 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:47:52,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338430094] [2022-12-14 09:47:52,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338430094] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:47:52,421 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:47:52,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-14 09:47:52,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927218417] [2022-12-14 09:47:52,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:47:52,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 09:47:52,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:47:52,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 09:47:52,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-12-14 09:47:52,422 INFO L87 Difference]: Start difference. First operand 331 states and 364 transitions. Second operand has 11 states, 10 states have (on average 5.2) internal successors, (52), 11 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:47:53,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:47:53,049 INFO L93 Difference]: Finished difference Result 474 states and 517 transitions. [2022-12-14 09:47:53,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-14 09:47:53,049 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.2) internal successors, (52), 11 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-12-14 09:47:53,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:47:53,051 INFO L225 Difference]: With dead ends: 474 [2022-12-14 09:47:53,052 INFO L226 Difference]: Without dead ends: 474 [2022-12-14 09:47:53,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=180, Invalid=470, Unknown=0, NotChecked=0, Total=650 [2022-12-14 09:47:53,052 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 1042 mSDsluCounter, 666 mSDsCounter, 0 mSdLazyCounter, 681 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1044 SdHoareTripleChecker+Valid, 799 SdHoareTripleChecker+Invalid, 702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 09:47:53,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1044 Valid, 799 Invalid, 702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 681 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 09:47:53,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2022-12-14 09:47:53,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 339. [2022-12-14 09:47:53,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 252 states have (on average 1.4404761904761905) internal successors, (363), 336 states have internal predecessors, (363), 9 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:47:53,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 374 transitions. [2022-12-14 09:47:53,055 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 374 transitions. Word has length 52 [2022-12-14 09:47:53,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:47:53,055 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 374 transitions. [2022-12-14 09:47:53,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.2) internal successors, (52), 11 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:47:53,056 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 374 transitions. [2022-12-14 09:47:53,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-12-14 09:47:53,056 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:47:53,056 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:47:53,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-12-14 09:47:53,056 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr85REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-12-14 09:47:53,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:47:53,057 INFO L85 PathProgramCache]: Analyzing trace with hash 689402233, now seen corresponding path program 1 times [2022-12-14 09:47:53,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:47:53,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570379157] [2022-12-14 09:47:53,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:47:53,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:47:53,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:47:53,236 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:47:53,236 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:47:53,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570379157] [2022-12-14 09:47:53,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570379157] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:47:53,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:47:53,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-14 09:47:53,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741544880] [2022-12-14 09:47:53,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:47:53,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 09:47:53,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:47:53,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 09:47:53,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-12-14 09:47:53,238 INFO L87 Difference]: Start difference. First operand 339 states and 374 transitions. Second operand has 9 states, 8 states have (on average 6.5) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:47:53,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:47:53,681 INFO L93 Difference]: Finished difference Result 379 states and 408 transitions. [2022-12-14 09:47:53,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-14 09:47:53,681 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.5) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-12-14 09:47:53,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:47:53,682 INFO L225 Difference]: With dead ends: 379 [2022-12-14 09:47:53,682 INFO L226 Difference]: Without dead ends: 379 [2022-12-14 09:47:53,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2022-12-14 09:47:53,682 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 658 mSDsluCounter, 729 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 660 SdHoareTripleChecker+Valid, 881 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 09:47:53,682 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [660 Valid, 881 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 559 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 09:47:53,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2022-12-14 09:47:53,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 340. [2022-12-14 09:47:53,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 253 states have (on average 1.434782608695652) internal successors, (363), 337 states have internal predecessors, (363), 9 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:47:53,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 374 transitions. [2022-12-14 09:47:53,688 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 374 transitions. Word has length 52 [2022-12-14 09:47:53,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:47:53,688 INFO L495 AbstractCegarLoop]: Abstraction has 340 states and 374 transitions. [2022-12-14 09:47:53,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.5) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:47:53,688 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 374 transitions. [2022-12-14 09:47:53,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-12-14 09:47:53,688 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:47:53,689 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:47:53,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-12-14 09:47:53,689 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr89ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-12-14 09:47:53,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:47:53,689 INFO L85 PathProgramCache]: Analyzing trace with hash 689404850, now seen corresponding path program 1 times [2022-12-14 09:47:53,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:47:53,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538560022] [2022-12-14 09:47:53,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:47:53,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:47:53,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:47:53,816 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:47:53,816 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:47:53,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538560022] [2022-12-14 09:47:53,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538560022] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:47:53,816 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:47:53,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 09:47:53,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745895079] [2022-12-14 09:47:53,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:47:53,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 09:47:53,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:47:53,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 09:47:53,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-14 09:47:53,817 INFO L87 Difference]: Start difference. First operand 340 states and 374 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:47:54,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:47:54,066 INFO L93 Difference]: Finished difference Result 386 states and 415 transitions. [2022-12-14 09:47:54,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 09:47:54,066 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-12-14 09:47:54,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:47:54,068 INFO L225 Difference]: With dead ends: 386 [2022-12-14 09:47:54,068 INFO L226 Difference]: Without dead ends: 386 [2022-12-14 09:47:54,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2022-12-14 09:47:54,068 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 639 mSDsluCounter, 539 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 641 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 09:47:54,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [641 Valid, 694 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 09:47:54,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2022-12-14 09:47:54,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 342. [2022-12-14 09:47:54,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 255 states have (on average 1.427450980392157) internal successors, (364), 339 states have internal predecessors, (364), 9 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:47:54,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 375 transitions. [2022-12-14 09:47:54,071 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 375 transitions. Word has length 52 [2022-12-14 09:47:54,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:47:54,071 INFO L495 AbstractCegarLoop]: Abstraction has 342 states and 375 transitions. [2022-12-14 09:47:54,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:47:54,071 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 375 transitions. [2022-12-14 09:47:54,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-12-14 09:47:54,072 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:47:54,072 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:47:54,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-12-14 09:47:54,072 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-12-14 09:47:54,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:47:54,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1079650774, now seen corresponding path program 1 times [2022-12-14 09:47:54,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:47:54,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556358700] [2022-12-14 09:47:54,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:47:54,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:47:54,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:47:55,700 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 13 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 09:47:55,700 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:47:55,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556358700] [2022-12-14 09:47:55,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556358700] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:47:55,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [788739515] [2022-12-14 09:47:55,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:47:55,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:47:55,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:47:55,701 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:47:55,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-12-14 09:47:55,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:47:55,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 109 conjunts are in the unsatisfiable core [2022-12-14 09:47:55,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:47:55,881 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 09:47:55,893 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 09:47:55,896 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 09:47:55,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:55,903 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-14 09:47:55,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:55,907 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-14 09:47:55,920 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 09:47:55,920 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-14 09:47:55,967 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 09:47:55,971 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-12-14 09:47:56,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:56,008 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 09:47:56,008 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 54 [2022-12-14 09:47:56,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:56,017 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 48 [2022-12-14 09:47:56,131 INFO L321 Elim1Store]: treesize reduction 48, result has 36.0 percent of original size [2022-12-14 09:47:56,131 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 41 [2022-12-14 09:47:56,215 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-12-14 09:47:56,215 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 62 treesize of output 62 [2022-12-14 09:47:56,220 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 45 [2022-12-14 09:47:56,265 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-12-14 09:47:56,265 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 62 treesize of output 62 [2022-12-14 09:47:56,282 INFO L321 Elim1Store]: treesize reduction 8, result has 61.9 percent of original size [2022-12-14 09:47:56,282 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 22 [2022-12-14 09:47:56,289 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 45 [2022-12-14 09:47:56,369 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-12-14 09:47:56,370 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 53 treesize of output 55 [2022-12-14 09:47:56,376 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 45 [2022-12-14 09:47:56,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:47:56,397 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 09:47:56,397 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 60 treesize of output 53 [2022-12-14 09:47:56,401 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 66 [2022-12-14 09:47:57,663 INFO L321 Elim1Store]: treesize reduction 149, result has 28.4 percent of original size [2022-12-14 09:47:57,663 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 20 case distinctions, treesize of input 170 treesize of output 143 [2022-12-14 09:47:57,683 INFO L321 Elim1Store]: treesize reduction 82, result has 7.9 percent of original size [2022-12-14 09:47:57,683 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 8 case distinctions, treesize of input 100 treesize of output 67 [2022-12-14 09:47:57,689 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 16 proven. 19 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 09:47:57,690 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:47:58,258 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:47:58,259 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 120 treesize of output 110 [2022-12-14 09:47:58,267 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:47:58,268 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 100 treesize of output 90 [2022-12-14 09:48:19,607 INFO L321 Elim1Store]: treesize reduction 125, result has 31.7 percent of original size [2022-12-14 09:48:19,607 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 220 treesize of output 195 [2022-12-14 09:48:19,617 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:48:19,738 INFO L321 Elim1Store]: treesize reduction 109, result has 40.4 percent of original size [2022-12-14 09:48:19,738 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 179 treesize of output 129 [2022-12-14 09:48:19,748 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:48:19,749 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:48:19,852 INFO L321 Elim1Store]: treesize reduction 35, result has 55.1 percent of original size [2022-12-14 09:48:19,852 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 157 treesize of output 169 [2022-12-14 09:48:19,890 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:48:19,890 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 129 treesize of output 131 [2022-12-14 09:48:19,906 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 60 treesize of output 58 [2022-12-14 09:48:19,920 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:48:19,921 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:48:20,057 INFO L321 Elim1Store]: treesize reduction 49, result has 53.8 percent of original size [2022-12-14 09:48:20,057 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 343 treesize of output 277 [2022-12-14 09:48:20,100 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:48:20,100 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 118 treesize of output 120 [2022-12-14 09:48:20,172 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:48:20,173 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 407 treesize of output 379 [2022-12-14 09:48:24,066 INFO L321 Elim1Store]: treesize reduction 132, result has 27.9 percent of original size [2022-12-14 09:48:24,066 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 220 treesize of output 147 [2022-12-14 09:48:24,077 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:48:24,215 INFO L321 Elim1Store]: treesize reduction 137, result has 25.1 percent of original size [2022-12-14 09:48:24,215 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 138 treesize of output 101 [2022-12-14 09:48:24,227 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:48:24,228 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:48:24,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:24,326 INFO L321 Elim1Store]: treesize reduction 61, result has 42.5 percent of original size [2022-12-14 09:48:24,326 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 462 treesize of output 412 [2022-12-14 09:48:24,341 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:48:24,342 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:48:24,402 INFO L321 Elim1Store]: treesize reduction 29, result has 37.0 percent of original size [2022-12-14 09:48:24,403 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 310 treesize of output 219 [2022-12-14 09:48:24,435 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:48:24,435 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 176 treesize of output 178 [2022-12-14 09:48:24,498 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:48:24,499 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 299 treesize of output 311 [2022-12-14 09:48:24,547 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:48:24,547 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 222 treesize of output 190 [2022-12-14 09:48:24,564 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 48 treesize of output 46 [2022-12-14 09:48:30,256 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 16 proven. 19 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 09:48:30,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [788739515] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:48:30,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1448500999] [2022-12-14 09:48:30,257 INFO L159 IcfgInterpreter]: Started Sifa with 28 locations of interest [2022-12-14 09:48:30,257 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:48:30,258 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:48:30,258 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:48:30,258 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:48:30,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,283 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 09:48:30,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,296 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-12-14 09:48:30,302 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:48:30,307 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:48:30,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,327 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 09:48:30,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,342 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-12-14 09:48:30,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,352 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 09:48:30,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,360 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 09:48:30,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,380 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 09:48:30,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,393 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 09:48:30,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,408 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 38 [2022-12-14 09:48:30,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,430 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 09:48:30,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,442 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 09:48:30,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,460 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 38 [2022-12-14 09:48:30,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,504 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 47 [2022-12-14 09:48:30,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,571 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-12-14 09:48:30,571 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 143 treesize of output 111 [2022-12-14 09:48:30,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,587 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 40 [2022-12-14 09:48:30,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,615 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2022-12-14 09:48:30,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,654 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:48:30,674 INFO L321 Elim1Store]: treesize reduction 49, result has 15.5 percent of original size [2022-12-14 09:48:30,674 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 179 treesize of output 131 [2022-12-14 09:48:30,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,714 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 60 [2022-12-14 09:48:30,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,730 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 49 [2022-12-14 09:48:30,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,749 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 47 [2022-12-14 09:48:30,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,851 INFO L321 Elim1Store]: treesize reduction 72, result has 23.4 percent of original size [2022-12-14 09:48:30,852 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 171 treesize of output 138 [2022-12-14 09:48:30,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,876 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2022-12-14 09:48:30,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,897 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 57 [2022-12-14 09:48:30,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,956 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:48:30,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:30,963 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:48:30,963 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:48:30,963 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:48:30,987 INFO L321 Elim1Store]: treesize reduction 67, result has 11.8 percent of original size [2022-12-14 09:48:30,987 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 494 treesize of output 456 [2022-12-14 09:48:31,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:31,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:31,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:31,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:31,011 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:48:31,012 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:48:31,012 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:48:31,013 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:48:31,034 INFO L321 Elim1Store]: treesize reduction 133, result has 10.1 percent of original size [2022-12-14 09:48:31,034 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 638 treesize of output 641 [2022-12-14 09:48:31,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:31,054 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:48:31,054 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:48:31,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:31,100 INFO L321 Elim1Store]: treesize reduction 98, result has 35.1 percent of original size [2022-12-14 09:48:31,100 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 752 treesize of output 719 [2022-12-14 09:48:31,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:31,442 INFO L321 Elim1Store]: treesize reduction 338, result has 16.7 percent of original size [2022-12-14 09:48:31,443 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 19 case distinctions, treesize of input 1450 treesize of output 1415 [2022-12-14 09:48:31,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:31,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:31,945 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:48:31,945 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:48:31,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:31,947 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:48:32,061 INFO L321 Elim1Store]: treesize reduction 122, result has 24.2 percent of original size [2022-12-14 09:48:32,061 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 3298 treesize of output 1821 [2022-12-14 09:48:32,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:32,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:32,115 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:48:32,241 INFO L321 Elim1Store]: treesize reduction 336, result has 14.3 percent of original size [2022-12-14 09:48:32,241 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 19 case distinctions, treesize of input 3279 treesize of output 2682 [2022-12-14 09:48:32,321 INFO L321 Elim1Store]: treesize reduction 49, result has 12.5 percent of original size [2022-12-14 09:48:32,321 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 6 case distinctions, treesize of input 3142 treesize of output 2903 [2022-12-14 09:48:33,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:33,442 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:48:33,443 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:48:33,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:33,445 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:48:33,446 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:48:33,559 INFO L321 Elim1Store]: treesize reduction 142, result has 15.0 percent of original size [2022-12-14 09:48:33,560 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 22 case distinctions, treesize of input 7525 treesize of output 4044 [2022-12-14 09:48:33,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:33,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:33,657 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:48:33,737 INFO L321 Elim1Store]: treesize reduction 100, result has 35.5 percent of original size [2022-12-14 09:48:33,738 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 7 case distinctions, treesize of input 7512 treesize of output 6984 [2022-12-14 09:48:33,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:33,827 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:48:33,827 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:48:33,943 INFO L321 Elim1Store]: treesize reduction 388, result has 8.5 percent of original size [2022-12-14 09:48:33,944 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 23 case distinctions, treesize of input 7426 treesize of output 6029 [2022-12-14 09:48:34,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:34,286 INFO L321 Elim1Store]: treesize reduction 458, result has 14.4 percent of original size [2022-12-14 09:48:34,286 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 26 case distinctions, treesize of input 7364 treesize of output 6954 [2022-12-14 09:48:40,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:40,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:40,199 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:48:40,200 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:48:40,201 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:48:40,379 INFO L321 Elim1Store]: treesize reduction 170, result has 21.3 percent of original size [2022-12-14 09:48:40,380 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 25 case distinctions, treesize of input 28703 treesize of output 15295 [2022-12-14 09:48:40,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:40,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:40,651 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:48:40,803 INFO L321 Elim1Store]: treesize reduction 400, result has 12.3 percent of original size [2022-12-14 09:48:40,803 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 25 case distinctions, treesize of input 28384 treesize of output 23092 [2022-12-14 09:48:41,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:41,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:41,159 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:48:41,206 INFO L321 Elim1Store]: treesize reduction 85, result has 7.6 percent of original size [2022-12-14 09:48:41,206 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 28140 treesize of output 26378 [2022-12-14 09:48:47,079 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:48:47,084 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:48:47,089 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 09:48:47,114 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 09:48:47,114 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-12-14 09:48:47,144 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 09:48:47,145 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 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-14 09:48:47,156 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:48:47,163 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:48:47,172 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-14 09:48:47,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:47,190 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 09:48:47,234 INFO L321 Elim1Store]: treesize reduction 24, result has 38.5 percent of original size [2022-12-14 09:48:47,234 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 33 [2022-12-14 09:48:47,244 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:48:47,305 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 09:48:47,305 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-12-14 09:48:47,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:47,316 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2022-12-14 09:48:47,332 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 09:48:47,341 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 18 [2022-12-14 09:48:47,351 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 09:48:47,363 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 09:48:47,369 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:48:47,374 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:48:47,963 INFO L321 Elim1Store]: treesize reduction 46, result has 37.8 percent of original size [2022-12-14 09:48:47,963 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 125 treesize of output 145 [2022-12-14 09:48:48,065 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 09:48:48,065 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 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-14 09:48:48,099 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-12-14 09:48:48,100 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 2 case distinctions, treesize of input 17 treesize of output 1 [2022-12-14 09:48:48,209 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-12-14 09:48:48,209 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 355 treesize of output 326 [2022-12-14 09:48:48,255 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-12-14 09:48:48,256 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 335 treesize of output 344 [2022-12-14 09:48:48,353 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:48:48,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:48,499 INFO L321 Elim1Store]: treesize reduction 70, result has 28.6 percent of original size [2022-12-14 09:48:48,499 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 8 case distinctions, treesize of input 493 treesize of output 500 [2022-12-14 09:48:48,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:48,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:48,519 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 468 treesize of output 442 [2022-12-14 09:48:48,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:48,584 INFO L321 Elim1Store]: treesize reduction 39, result has 30.4 percent of original size [2022-12-14 09:48:48,584 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 481 treesize of output 476 [2022-12-14 09:48:48,887 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 09:48:48,887 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-12-14 09:48:48,921 INFO L321 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2022-12-14 09:48:48,921 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 1 [2022-12-14 09:48:48,972 INFO L321 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2022-12-14 09:48:48,972 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 1 [2022-12-14 09:48:49,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:48:49,001 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 09:48:49,013 INFO L197 IcfgInterpreter]: Interpreting procedure fail with input of size 10 for LOIs [2022-12-14 09:48:49,015 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:48:54,728 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '42165#(and (<= 0 |#NULL.base|) (<= |#NULL.offset| 0) (<= |#NULL.base| 0) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|))' at error location [2022-12-14 09:48:54,729 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 09:48:54,729 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:48:54,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 17, 19] total 46 [2022-12-14 09:48:54,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892148562] [2022-12-14 09:48:54,729 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 09:48:54,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-12-14 09:48:54,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:48:54,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-12-14 09:48:54,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=320, Invalid=3700, Unknown=12, NotChecked=0, Total=4032 [2022-12-14 09:48:54,731 INFO L87 Difference]: Start difference. First operand 342 states and 375 transitions. Second operand has 46 states, 46 states have (on average 2.782608695652174) internal successors, (128), 46 states have internal predecessors, (128), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:49:29,900 WARN L233 SmtUtils]: Spent 28.12s on a formula simplification. DAG size of input: 190 DAG size of output: 122 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:49:46,545 WARN L233 SmtUtils]: Spent 16.08s on a formula simplification. DAG size of input: 205 DAG size of output: 124 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:50:15,020 WARN L233 SmtUtils]: Spent 28.00s on a formula simplification. DAG size of input: 200 DAG size of output: 126 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:50:28,440 WARN L233 SmtUtils]: Spent 12.92s on a formula simplification. DAG size of input: 206 DAG size of output: 130 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:50:53,281 WARN L233 SmtUtils]: Spent 24.15s on a formula simplification. DAG size of input: 193 DAG size of output: 125 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:51:23,952 WARN L233 SmtUtils]: Spent 29.15s on a formula simplification. DAG size of input: 201 DAG size of output: 133 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:51:52,828 WARN L233 SmtUtils]: Spent 27.77s on a formula simplification. DAG size of input: 205 DAG size of output: 137 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:52:18,126 WARN L233 SmtUtils]: Spent 11.24s on a formula simplification. DAG size of input: 142 DAG size of output: 139 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:52:20,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-12-14 09:52:55,253 WARN L233 SmtUtils]: Spent 25.45s on a formula simplification. DAG size of input: 145 DAG size of output: 142 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:52:57,813 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2022-12-14 09:53:04,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:53:04,304 INFO L93 Difference]: Finished difference Result 597 states and 644 transitions. [2022-12-14 09:53:04,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-12-14 09:53:04,304 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 2.782608695652174) internal successors, (128), 46 states have internal predecessors, (128), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2022-12-14 09:53:04,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:53:04,305 INFO L225 Difference]: With dead ends: 597 [2022-12-14 09:53:04,305 INFO L226 Difference]: Without dead ends: 597 [2022-12-14 09:53:04,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 121 SyntacticMatches, 2 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1992 ImplicationChecksByTransitivity, 262.4s TimeCoverageRelationStatistics Valid=965, Invalid=6677, Unknown=14, NotChecked=0, Total=7656 [2022-12-14 09:53:04,306 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 3359 mSDsluCounter, 3889 mSDsCounter, 0 mSdLazyCounter, 3329 mSolverCounterSat, 59 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3363 SdHoareTripleChecker+Valid, 4092 SdHoareTripleChecker+Invalid, 3397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 3329 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.8s IncrementalHoareTripleChecker+Time [2022-12-14 09:53:04,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3363 Valid, 4092 Invalid, 3397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 3329 Invalid, 9 Unknown, 0 Unchecked, 17.8s Time] [2022-12-14 09:53:04,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2022-12-14 09:53:04,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 343. [2022-12-14 09:53:04,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 256 states have (on average 1.42578125) internal successors, (365), 340 states have internal predecessors, (365), 9 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:53:04,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 376 transitions. [2022-12-14 09:53:04,310 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 376 transitions. Word has length 54 [2022-12-14 09:53:04,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:53:04,310 INFO L495 AbstractCegarLoop]: Abstraction has 343 states and 376 transitions. [2022-12-14 09:53:04,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 2.782608695652174) internal successors, (128), 46 states have internal predecessors, (128), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:53:04,310 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 376 transitions. [2022-12-14 09:53:04,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-12-14 09:53:04,311 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:53:04,311 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:53:04,317 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2022-12-14 09:53:04,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:53:04,513 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr87ASSERT_VIOLATIONMEMORY_FREE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-12-14 09:53:04,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:53:04,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1090668642, now seen corresponding path program 1 times [2022-12-14 09:53:04,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:53:04,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802784695] [2022-12-14 09:53:04,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:53:04,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:53:04,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:53:04,718 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:53:04,718 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:53:04,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802784695] [2022-12-14 09:53:04,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802784695] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:53:04,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:53:04,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 09:53:04,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120257375] [2022-12-14 09:53:04,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:53:04,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 09:53:04,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:53:04,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 09:53:04,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-14 09:53:04,720 INFO L87 Difference]: Start difference. First operand 343 states and 376 transitions. Second operand has 7 states, 6 states have (on average 9.0) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:53:05,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:53:05,613 INFO L93 Difference]: Finished difference Result 383 states and 412 transitions. [2022-12-14 09:53:05,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 09:53:05,613 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.0) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2022-12-14 09:53:05,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:53:05,614 INFO L225 Difference]: With dead ends: 383 [2022-12-14 09:53:05,614 INFO L226 Difference]: Without dead ends: 383 [2022-12-14 09:53:05,614 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2022-12-14 09:53:05,615 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 619 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 621 SdHoareTripleChecker+Valid, 635 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-14 09:53:05,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [621 Valid, 635 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-14 09:53:05,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2022-12-14 09:53:05,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 346. [2022-12-14 09:53:05,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 259 states have (on average 1.4324324324324325) internal successors, (371), 343 states have internal predecessors, (371), 9 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:53:05,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 382 transitions. [2022-12-14 09:53:05,618 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 382 transitions. Word has length 54 [2022-12-14 09:53:05,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:53:05,619 INFO L495 AbstractCegarLoop]: Abstraction has 346 states and 382 transitions. [2022-12-14 09:53:05,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.0) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:53:05,619 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 382 transitions. [2022-12-14 09:53:05,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-12-14 09:53:05,619 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:53:05,619 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-12-14 09:53:05,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-12-14 09:53:05,619 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-12-14 09:53:05,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:53:05,620 INFO L85 PathProgramCache]: Analyzing trace with hash -890821639, now seen corresponding path program 3 times [2022-12-14 09:53:05,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:53:05,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925801331] [2022-12-14 09:53:05,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:53:05,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:53:05,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:53:07,440 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 11 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:53:07,441 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:53:07,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925801331] [2022-12-14 09:53:07,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925801331] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:53:07,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [195289154] [2022-12-14 09:53:07,441 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-14 09:53:07,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:53:07,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:53:07,442 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:53:07,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-12-14 09:53:07,701 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-14 09:53:07,701 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 09:53:07,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 105 conjunts are in the unsatisfiable core [2022-12-14 09:53:07,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:53:07,711 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 09:53:07,738 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-14 09:53:07,738 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 12 treesize of output 14 [2022-12-14 09:53:07,782 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-14 09:53:07,782 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 12 treesize of output 14 [2022-12-14 09:53:07,813 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:53:07,898 INFO L321 Elim1Store]: treesize reduction 52, result has 22.4 percent of original size [2022-12-14 09:53:07,898 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 21 treesize of output 26 [2022-12-14 09:53:08,023 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 09:53:08,023 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-12-14 09:53:08,031 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2022-12-14 09:53:08,297 INFO L321 Elim1Store]: treesize reduction 86, result has 35.8 percent of original size [2022-12-14 09:53:08,297 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 35 treesize of output 69 [2022-12-14 09:53:08,337 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 09:53:08,337 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 38 [2022-12-14 09:53:08,534 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 29 [2022-12-14 09:53:08,574 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:53:08,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:08,711 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 47 [2022-12-14 09:53:08,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:08,750 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-14 09:53:12,509 INFO L321 Elim1Store]: treesize reduction 40, result has 83.7 percent of original size [2022-12-14 09:53:12,510 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 21 case distinctions, treesize of input 216 treesize of output 366 [2022-12-14 09:53:26,047 INFO L321 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2022-12-14 09:53:26,047 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 86 treesize of output 44 [2022-12-14 09:53:26,241 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 16 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:53:26,241 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:53:29,116 INFO L321 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2022-12-14 09:53:29,116 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 370 treesize of output 361 [2022-12-14 09:53:34,790 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:53:34,790 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 100 treesize of output 70 [2022-12-14 09:53:34,794 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:53:34,816 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:53:34,817 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 124 treesize of output 124 [2022-12-14 09:53:34,826 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:53:34,827 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 57 treesize of output 51 [2022-12-14 09:53:34,842 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 60 treesize of output 52 [2022-12-14 09:53:34,882 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:53:34,882 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:53:34,885 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 90 treesize of output 78 [2022-12-14 09:53:34,994 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:53:34,995 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 100 treesize of output 70 [2022-12-14 09:53:34,998 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:53:34,999 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:53:35,017 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:53:35,017 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 68 [2022-12-14 09:53:35,032 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:53:35,040 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 69 treesize of output 57 [2022-12-14 09:53:38,051 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 10 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:53:38,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [195289154] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:53:38,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1650874165] [2022-12-14 09:53:38,053 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2022-12-14 09:53:38,053 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:53:38,053 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:53:38,053 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:53:38,053 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:53:38,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,083 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 09:53:38,098 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:53:38,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,109 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-12-14 09:53:38,118 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:53:38,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,138 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 09:53:38,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,156 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-12-14 09:53:38,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,169 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 09:53:38,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,184 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 09:53:38,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,215 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 38 [2022-12-14 09:53:38,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,230 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 09:53:38,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,244 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 09:53:38,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,273 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 38 [2022-12-14 09:53:38,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,292 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 09:53:38,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,311 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 09:53:38,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,364 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 56 [2022-12-14 09:53:38,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,442 INFO L321 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2022-12-14 09:53:38,442 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 178 treesize of output 142 [2022-12-14 09:53:38,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,470 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 46 [2022-12-14 09:53:38,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,497 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 97 [2022-12-14 09:53:38,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,547 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:53:38,578 INFO L321 Elim1Store]: treesize reduction 49, result has 15.5 percent of original size [2022-12-14 09:53:38,578 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 179 treesize of output 131 [2022-12-14 09:53:38,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,611 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 47 [2022-12-14 09:53:38,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,669 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 60 [2022-12-14 09:53:38,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,697 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 49 [2022-12-14 09:53:38,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,812 INFO L321 Elim1Store]: treesize reduction 72, result has 23.4 percent of original size [2022-12-14 09:53:38,813 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 171 treesize of output 138 [2022-12-14 09:53:38,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,843 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2022-12-14 09:53:38,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,875 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 57 [2022-12-14 09:53:38,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,954 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:53:38,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:38,957 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:53:39,019 INFO L321 Elim1Store]: treesize reduction 62, result has 31.9 percent of original size [2022-12-14 09:53:39,020 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 500 treesize of output 467 [2022-12-14 09:53:39,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:39,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:39,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:39,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:39,052 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:53:39,053 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:53:39,053 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:53:39,054 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:53:39,087 INFO L321 Elim1Store]: treesize reduction 67, result has 11.8 percent of original size [2022-12-14 09:53:39,088 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 497 treesize of output 459 [2022-12-14 09:53:39,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:39,114 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:53:39,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:39,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:39,120 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:53:39,121 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:53:39,121 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:53:39,160 INFO L321 Elim1Store]: treesize reduction 133, result has 10.1 percent of original size [2022-12-14 09:53:39,160 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 604 treesize of output 607 [2022-12-14 09:53:39,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:39,590 INFO L321 Elim1Store]: treesize reduction 338, result has 16.7 percent of original size [2022-12-14 09:53:39,590 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 19 case distinctions, treesize of input 1426 treesize of output 1403 [2022-12-14 09:53:39,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:39,940 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:53:39,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:39,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:39,949 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:53:39,958 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:53:40,094 INFO L321 Elim1Store]: treesize reduction 214, result has 16.7 percent of original size [2022-12-14 09:53:40,095 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 1808 treesize of output 1047 [2022-12-14 09:53:40,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:40,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:40,144 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:53:40,311 INFO L321 Elim1Store]: treesize reduction 370, result has 13.1 percent of original size [2022-12-14 09:53:40,312 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 10 new quantified variables, introduced 19 case distinctions, treesize of input 1829 treesize of output 1479 [2022-12-14 09:53:40,436 INFO L321 Elim1Store]: treesize reduction 158, result has 13.7 percent of original size [2022-12-14 09:53:40,437 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 7 case distinctions, treesize of input 1732 treesize of output 1587 [2022-12-14 09:53:41,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:41,051 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:53:41,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:41,054 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:53:41,065 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:53:41,065 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:53:41,263 INFO L321 Elim1Store]: treesize reduction 268, result has 11.8 percent of original size [2022-12-14 09:53:41,263 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 23 case distinctions, treesize of input 4305 treesize of output 2444 [2022-12-14 09:53:41,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:41,316 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:53:41,317 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:53:41,471 INFO L321 Elim1Store]: treesize reduction 464, result has 9.2 percent of original size [2022-12-14 09:53:41,472 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 11 new quantified variables, introduced 24 case distinctions, treesize of input 4323 treesize of output 3409 [2022-12-14 09:53:41,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:41,538 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:53:41,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:41,652 INFO L321 Elim1Store]: treesize reduction 174, result has 26.0 percent of original size [2022-12-14 09:53:41,653 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 7 case distinctions, treesize of input 4292 treesize of output 3922 [2022-12-14 09:53:41,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:42,018 INFO L321 Elim1Store]: treesize reduction 458, result has 14.4 percent of original size [2022-12-14 09:53:42,018 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 26 case distinctions, treesize of input 4224 treesize of output 4042 [2022-12-14 09:53:43,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:43,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:43,364 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:53:43,365 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:53:43,365 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:53:43,673 INFO L321 Elim1Store]: treesize reduction 270, result has 15.6 percent of original size [2022-12-14 09:53:43,674 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 25 case distinctions, treesize of input 8536 treesize of output 4758 [2022-12-14 09:53:43,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:43,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:43,786 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:53:43,975 INFO L321 Elim1Store]: treesize reduction 438, result has 11.3 percent of original size [2022-12-14 09:53:43,975 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 11 new quantified variables, introduced 25 case distinctions, treesize of input 8537 treesize of output 6748 [2022-12-14 09:53:44,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:44,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:44,106 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:53:44,184 INFO L321 Elim1Store]: treesize reduction 202, result has 11.0 percent of original size [2022-12-14 09:53:44,184 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 8373 treesize of output 7681 [2022-12-14 09:53:45,596 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:53:45,603 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:53:45,607 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 09:53:45,644 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 09:53:45,644 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-12-14 09:53:45,687 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 09:53:45,687 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 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-14 09:53:45,700 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:53:45,710 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-14 09:53:45,721 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:53:45,785 INFO L321 Elim1Store]: treesize reduction 24, result has 38.5 percent of original size [2022-12-14 09:53:45,785 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 33 [2022-12-14 09:53:45,856 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 09:53:45,857 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-12-14 09:53:45,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:45,869 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2022-12-14 09:53:45,880 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:53:45,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:45,893 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 09:53:45,909 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 09:53:45,920 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 18 [2022-12-14 09:53:45,930 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 09:53:45,946 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 09:53:45,953 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:53:45,959 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:53:46,588 INFO L321 Elim1Store]: treesize reduction 46, result has 37.8 percent of original size [2022-12-14 09:53:46,588 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 125 treesize of output 145 [2022-12-14 09:53:46,712 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 09:53:46,712 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 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-14 09:53:46,772 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 09:53:46,772 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 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-14 09:53:46,915 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:53:46,973 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-12-14 09:53:46,973 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 418 treesize of output 421 [2022-12-14 09:53:47,020 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-12-14 09:53:47,020 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 410 treesize of output 381 [2022-12-14 09:53:47,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:47,382 INFO L321 Elim1Store]: treesize reduction 70, result has 28.6 percent of original size [2022-12-14 09:53:47,382 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 8 case distinctions, treesize of input 812 treesize of output 809 [2022-12-14 09:53:47,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:47,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:47,416 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 777 treesize of output 727 [2022-12-14 09:53:47,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:47,518 INFO L321 Elim1Store]: treesize reduction 39, result has 30.4 percent of original size [2022-12-14 09:53:47,518 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 790 treesize of output 773 [2022-12-14 09:53:48,127 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 09:53:48,127 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-12-14 09:53:48,259 INFO L321 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2022-12-14 09:53:48,259 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 1 [2022-12-14 09:53:48,354 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-12-14 09:53:48,354 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 1 [2022-12-14 09:53:48,406 INFO L321 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2022-12-14 09:53:48,407 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 1 [2022-12-14 09:53:48,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:53:48,486 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 09:53:48,524 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:53:55,900 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '44298#(and (<= 0 |#NULL.base|) (not (= (select |#valid| |ULTIMATE.start_inspect_before_~shape#1.base|) 1)) (<= 0 |ULTIMATE.start_main_~item~0#1.offset|) (<= 0 |ULTIMATE.start_main_~node~1#1.offset|) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_inspect_before_#in~shape#1.offset|) (<= |ULTIMATE.start_main_~item~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~data~0#1.offset|) (<= |#NULL.base| 0) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_main_~data~0#1.offset| 0) (<= |ULTIMATE.start_inspect_before_#in~shape#1.offset| 0) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~node~1#1.offset| 0))' at error location [2022-12-14 09:53:55,900 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 09:53:55,900 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:53:55,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 19, 20] total 51 [2022-12-14 09:53:55,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546816748] [2022-12-14 09:53:55,901 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 09:53:55,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2022-12-14 09:53:55,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:53:55,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2022-12-14 09:53:55,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=392, Invalid=4437, Unknown=1, NotChecked=0, Total=4830 [2022-12-14 09:53:55,902 INFO L87 Difference]: Start difference. First operand 346 states and 382 transitions. Second operand has 52 states, 51 states have (on average 2.8627450980392157) internal successors, (146), 52 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:54:33,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:54:33,018 INFO L93 Difference]: Finished difference Result 954 states and 1049 transitions. [2022-12-14 09:54:33,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-12-14 09:54:33,020 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 51 states have (on average 2.8627450980392157) internal successors, (146), 52 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2022-12-14 09:54:33,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:54:33,021 INFO L225 Difference]: With dead ends: 954 [2022-12-14 09:54:33,022 INFO L226 Difference]: Without dead ends: 954 [2022-12-14 09:54:33,022 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 115 SyntacticMatches, 5 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3648 ImplicationChecksByTransitivity, 41.0s TimeCoverageRelationStatistics Valid=1622, Invalid=10809, Unknown=1, NotChecked=0, Total=12432 [2022-12-14 09:54:33,023 INFO L413 NwaCegarLoop]: 314 mSDtfsCounter, 5041 mSDsluCounter, 5260 mSDsCounter, 0 mSdLazyCounter, 5795 mSolverCounterSat, 210 mSolverCounterUnsat, 19 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5043 SdHoareTripleChecker+Valid, 5574 SdHoareTripleChecker+Invalid, 6024 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 210 IncrementalHoareTripleChecker+Valid, 5795 IncrementalHoareTripleChecker+Invalid, 19 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.7s IncrementalHoareTripleChecker+Time [2022-12-14 09:54:33,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5043 Valid, 5574 Invalid, 6024 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [210 Valid, 5795 Invalid, 19 Unknown, 0 Unchecked, 18.7s Time] [2022-12-14 09:54:33,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2022-12-14 09:54:33,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 349. [2022-12-14 09:54:33,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 262 states have (on average 1.4312977099236641) internal successors, (375), 346 states have internal predecessors, (375), 9 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:54:33,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 386 transitions. [2022-12-14 09:54:33,028 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 386 transitions. Word has length 55 [2022-12-14 09:54:33,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:54:33,028 INFO L495 AbstractCegarLoop]: Abstraction has 349 states and 386 transitions. [2022-12-14 09:54:33,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 51 states have (on average 2.8627450980392157) internal successors, (146), 52 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:54:33,028 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 386 transitions. [2022-12-14 09:54:33,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-12-14 09:54:33,029 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:54:33,029 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-12-14 09:54:33,035 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2022-12-14 09:54:33,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:54:33,231 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-12-14 09:54:33,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:54:33,232 INFO L85 PathProgramCache]: Analyzing trace with hash -890821638, now seen corresponding path program 2 times [2022-12-14 09:54:33,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:54:33,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522733489] [2022-12-14 09:54:33,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:54:33,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:54:33,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:54:37,167 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 8 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:54:37,168 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:54:37,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522733489] [2022-12-14 09:54:37,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522733489] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:54:37,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [969578493] [2022-12-14 09:54:37,168 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 09:54:37,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:54:37,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:54:37,169 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:54:37,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc346e5-b553-4744-9b78-503613d5f2df/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-12-14 09:54:37,423 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-12-14 09:54:37,423 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 09:54:37,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 99 conjunts are in the unsatisfiable core [2022-12-14 09:54:37,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:54:37,435 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 09:54:37,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:54:37,642 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-14 09:54:37,680 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 09:54:37,680 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-14 09:54:37,744 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-14 09:54:37,744 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 12 treesize of output 14 [2022-12-14 09:54:37,790 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 09:54:37,790 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 20 [2022-12-14 09:54:37,999 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:54:38,009 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:54:38,262 INFO L321 Elim1Store]: treesize reduction 68, result has 31.3 percent of original size [2022-12-14 09:54:38,262 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 28 treesize of output 45 [2022-12-14 09:54:38,295 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-12-14 09:54:38,295 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 38 [2022-12-14 09:54:38,490 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 45 [2022-12-14 09:54:38,513 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-14 09:54:38,544 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 45 [2022-12-14 09:54:38,589 INFO L321 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2022-12-14 09:54:38,589 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 31 [2022-12-14 09:54:38,616 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-12-14 09:54:38,616 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 38 [2022-12-14 09:54:38,648 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-14 09:54:38,836 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-14 09:54:38,849 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 34 [2022-12-14 09:54:39,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:54:39,060 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 49 [2022-12-14 09:54:39,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:54:39,103 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2022-12-14 09:54:42,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:54:42,778 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:54:42,815 INFO L321 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2022-12-14 09:54:42,815 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 131 treesize of output 71 [2022-12-14 09:54:42,851 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-12-14 09:54:42,851 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 25 [2022-12-14 09:54:43,094 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 12 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:54:43,094 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:54:45,325 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:54:45,326 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 44 [2022-12-14 09:54:45,345 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:54:45,345 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 23 [2022-12-14 09:54:46,935 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:54:46,936 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 28 [2022-12-14 09:54:46,949 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 66 [2022-12-14 09:54:46,972 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:54:46,972 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 68 treesize of output 66 [2022-12-14 09:54:46,984 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 28 treesize of output 24 [2022-12-14 09:54:47,317 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:54:47,318 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 78 treesize of output 69 [2022-12-14 09:54:47,324 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:54:47,348 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 09:54:47,348 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 214 treesize of output 206 [2022-12-14 09:54:47,368 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:54:47,369 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 198 treesize of output 168 [2022-12-14 09:54:47,387 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 552 treesize of output 522 [2022-12-14 09:54:47,407 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 268 treesize of output 248 [2022-12-14 09:54:47,419 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:54:47,426 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 662 treesize of output 630 [2022-12-14 09:54:47,461 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:54:47,462 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 636 treesize of output 594 [2022-12-14 09:54:47,480 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 582 treesize of output 558 [2022-12-14 09:54:47,500 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 286 treesize of output 270 [2022-12-14 09:55:03,917 WARN L233 SmtUtils]: Spent 6.20s on a formula simplification that was a NOOP. DAG size: 59 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:55:04,081 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 4148 treesize of output 4114 [2022-12-14 09:55:11,360 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 10 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:55:11,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [969578493] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:55:11,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1382801554] [2022-12-14 09:55:11,361 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2022-12-14 09:55:11,361 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:55:11,361 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:55:11,361 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:55:11,361 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:55:11,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:11,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:11,394 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 09:55:11,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:11,412 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-12-14 09:55:11,420 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:55:11,427 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:55:11,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:11,443 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 09:55:11,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:11,452 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 09:55:11,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:11,464 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 09:55:11,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:11,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:11,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:11,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:11,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:11,486 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-12-14 09:55:11,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:11,512 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 09:55:11,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:11,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:11,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:11,529 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 38 [2022-12-14 09:55:11,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:11,544 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 09:55:11,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:11,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:11,570 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 09:55:11,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:11,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:11,585 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 09:55:11,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:11,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:11,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:11,604 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 38 [2022-12-14 09:55:11,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:11,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:11,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:11,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:11,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:11,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:11,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:11,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:11,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:11,660 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 47 [2022-12-14 09:55:11,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:11,740 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-12-14 09:55:11,741 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 143 treesize of output 111 [2022-12-14 09:55:11,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:11,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:11,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:11,763 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 40 [2022-12-14 09:55:11,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:11,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:11,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:11,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:11,786 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2022-12-14 09:55:11,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:11,831 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:55:11,866 INFO L321 Elim1Store]: treesize reduction 47, result has 13.0 percent of original size [2022-12-14 09:55:11,867 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 177 treesize of output 129 [2022-12-14 09:55:11,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:11,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:11,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:11,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:11,893 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 45 [2022-12-14 09:55:11,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:11,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:11,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:11,917 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 49 [2022-12-14 09:55:11,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:11,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:11,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:11,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:11,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:11,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:11,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:11,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:11,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:11,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:11,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:11,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:11,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:11,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:11,976 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 55 [2022-12-14 09:55:12,086 INFO L321 Elim1Store]: treesize reduction 72, result has 23.4 percent of original size [2022-12-14 09:55:12,086 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 169 treesize of output 136 [2022-12-14 09:55:12,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:12,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:12,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:12,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:12,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:12,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:12,118 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 57 [2022-12-14 09:55:12,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:12,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:12,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:12,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:12,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:12,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:12,153 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 52 [2022-12-14 09:55:12,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:12,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:12,219 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:55:12,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:12,222 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:55:12,222 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:55:12,256 INFO L321 Elim1Store]: treesize reduction 65, result has 9.7 percent of original size [2022-12-14 09:55:12,257 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 490 treesize of output 452 [2022-12-14 09:55:12,274 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:55:12,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:12,276 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:55:12,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:12,341 INFO L321 Elim1Store]: treesize reduction 80, result has 33.9 percent of original size [2022-12-14 09:55:12,341 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 634 treesize of output 601 [2022-12-14 09:55:12,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:12,366 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:55:12,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:12,370 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:55:12,370 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:55:12,408 INFO L321 Elim1Store]: treesize reduction 131, result has 9.0 percent of original size [2022-12-14 09:55:12,408 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 600 treesize of output 603 [2022-12-14 09:55:12,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:12,853 INFO L321 Elim1Store]: treesize reduction 296, result has 15.9 percent of original size [2022-12-14 09:55:12,853 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 19 case distinctions, treesize of input 1244 treesize of output 1221 [2022-12-14 09:55:13,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:13,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:13,335 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:55:13,339 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:55:13,493 INFO L321 Elim1Store]: treesize reduction 194, result has 16.0 percent of original size [2022-12-14 09:55:13,493 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 3120 treesize of output 1919 [2022-12-14 09:55:13,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:13,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:13,575 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:55:13,576 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:55:13,742 INFO L321 Elim1Store]: treesize reduction 292, result has 17.7 percent of original size [2022-12-14 09:55:13,743 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 17 case distinctions, treesize of input 3082 treesize of output 2713 [2022-12-14 09:55:13,905 INFO L321 Elim1Store]: treesize reduction 152, result has 14.1 percent of original size [2022-12-14 09:55:13,906 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 7 case distinctions, treesize of input 3012 treesize of output 2701 [2022-12-14 09:55:15,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:15,758 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:55:15,758 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:55:15,767 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:55:15,926 INFO L321 Elim1Store]: treesize reduction 246, result has 10.2 percent of original size [2022-12-14 09:55:15,927 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 23 case distinctions, treesize of input 11185 treesize of output 6644 [2022-12-14 09:55:16,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:16,055 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:55:16,055 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:55:16,056 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:55:16,247 INFO L321 Elim1Store]: treesize reduction 340, result has 9.1 percent of original size [2022-12-14 09:55:16,247 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 23 case distinctions, treesize of input 11203 treesize of output 9752 [2022-12-14 09:55:16,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:16,671 INFO L321 Elim1Store]: treesize reduction 410, result has 13.7 percent of original size [2022-12-14 09:55:16,672 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 26 case distinctions, treesize of input 11184 treesize of output 10518 [2022-12-14 09:55:16,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:16,846 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:55:16,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:17,013 INFO L321 Elim1Store]: treesize reduction 156, result has 23.9 percent of original size [2022-12-14 09:55:17,013 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 7 case distinctions, treesize of input 11076 treesize of output 9902 [2022-12-14 09:55:25,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:25,391 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:55:25,395 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:55:25,714 INFO L321 Elim1Store]: treesize reduction 250, result has 15.0 percent of original size [2022-12-14 09:55:25,715 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 25 case distinctions, treesize of input 36617 treesize of output 21683 [2022-12-14 09:55:26,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:26,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:26,161 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:55:26,289 INFO L321 Elim1Store]: treesize reduction 190, result has 11.6 percent of original size [2022-12-14 09:55:26,289 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 36270 treesize of output 32876 [2022-12-14 09:55:26,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:26,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:55:26,734 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:55:26,735 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:55:26,922 INFO L321 Elim1Store]: treesize reduction 348, result has 15.3 percent of original size [2022-12-14 09:55:26,923 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 23 case distinctions, treesize of input 36271 treesize of output 31751