./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-pthread/cs_read_write_lock-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ff24010-5fb8-4abd-9dd2-91dcec412b09/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ff24010-5fb8-4abd-9dd2-91dcec412b09/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ff24010-5fb8-4abd-9dd2-91dcec412b09/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ff24010-5fb8-4abd-9dd2-91dcec412b09/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-pthread/cs_read_write_lock-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ff24010-5fb8-4abd-9dd2-91dcec412b09/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ff24010-5fb8-4abd-9dd2-91dcec412b09/bin/utaipan-g80aRyZoba --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1458378674bd140ace04512980940eeb05aa22f50528a181d147a292aa3349d2 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 02:15:31,044 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:15:31,047 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:15:31,093 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:15:31,095 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:15:31,099 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:15:31,103 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:15:31,106 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:15:31,108 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:15:31,114 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:15:31,116 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:15:31,118 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:15:31,119 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:15:31,121 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:15:31,123 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:15:31,126 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:15:31,128 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:15:31,129 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:15:31,131 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:15:31,138 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:15:31,140 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:15:31,143 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:15:31,145 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:15:31,146 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:15:31,157 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:15:31,159 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:15:31,159 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:15:31,160 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:15:31,162 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:15:31,163 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:15:31,164 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:15:31,165 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:15:31,167 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:15:31,170 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:15:31,171 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:15:31,172 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:15:31,172 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:15:31,173 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:15:31,173 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:15:31,175 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:15:31,176 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:15:31,177 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ff24010-5fb8-4abd-9dd2-91dcec412b09/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-22 02:15:31,225 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:15:31,225 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:15:31,226 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:15:31,240 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:15:31,242 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:15:31,242 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:15:31,242 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:15:31,243 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:15:31,243 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:15:31,243 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 02:15:31,245 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:15:31,245 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:15:31,245 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 02:15:31,246 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 02:15:31,246 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:15:31,247 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 02:15:31,247 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 02:15:31,247 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 02:15:31,248 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:15:31,248 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 02:15:31,249 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 02:15:31,249 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 02:15:31,249 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:15:31,249 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 02:15:31,250 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:15:31,250 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 02:15:31,250 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 02:15:31,250 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 02:15:31,251 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:15:31,251 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 02:15:31,251 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:15:31,252 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:15:31,252 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:15:31,252 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:15:31,253 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 02:15:31,253 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:15:31,253 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 02:15:31,253 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 02:15:31,254 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 02:15:31,254 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 02:15:31,254 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:15:31,254 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_5ff24010-5fb8-4abd-9dd2-91dcec412b09/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ff24010-5fb8-4abd-9dd2-91dcec412b09/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1458378674bd140ace04512980940eeb05aa22f50528a181d147a292aa3349d2 [2022-11-22 02:15:31,649 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:15:31,694 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:15:31,697 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:15:31,699 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:15:31,699 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:15:31,701 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ff24010-5fb8-4abd-9dd2-91dcec412b09/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/seq-pthread/cs_read_write_lock-2.i [2022-11-22 02:15:35,324 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:15:35,731 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:15:35,732 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ff24010-5fb8-4abd-9dd2-91dcec412b09/sv-benchmarks/c/seq-pthread/cs_read_write_lock-2.i [2022-11-22 02:15:35,757 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ff24010-5fb8-4abd-9dd2-91dcec412b09/bin/utaipan-g80aRyZoba/data/bbe38e4a4/791059228aac46a8a2fb5e27665e5d53/FLAG1e61a9a7d [2022-11-22 02:15:35,779 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ff24010-5fb8-4abd-9dd2-91dcec412b09/bin/utaipan-g80aRyZoba/data/bbe38e4a4/791059228aac46a8a2fb5e27665e5d53 [2022-11-22 02:15:35,783 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:15:35,786 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:15:35,790 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:15:35,790 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:15:35,795 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:15:35,796 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:15:35" (1/1) ... [2022-11-22 02:15:35,798 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64a9c1c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:15:35, skipping insertion in model container [2022-11-22 02:15:35,798 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:15:35" (1/1) ... [2022-11-22 02:15:35,807 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:15:35,853 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:15:36,179 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_5ff24010-5fb8-4abd-9dd2-91dcec412b09/sv-benchmarks/c/seq-pthread/cs_read_write_lock-2.i[23469,23482] [2022-11-22 02:15:36,368 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:15:36,395 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:15:36,456 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_5ff24010-5fb8-4abd-9dd2-91dcec412b09/sv-benchmarks/c/seq-pthread/cs_read_write_lock-2.i[23469,23482] [2022-11-22 02:15:36,559 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:15:36,606 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:15:36,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:15:36 WrapperNode [2022-11-22 02:15:36,607 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:15:36,608 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:15:36,608 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:15:36,608 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:15:36,617 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:15:36" (1/1) ... [2022-11-22 02:15:36,647 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:15:36" (1/1) ... [2022-11-22 02:15:36,710 INFO L138 Inliner]: procedures = 145, calls = 279, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 558 [2022-11-22 02:15:36,710 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:15:36,711 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:15:36,711 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:15:36,712 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:15:36,723 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:15:36" (1/1) ... [2022-11-22 02:15:36,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:15:36" (1/1) ... [2022-11-22 02:15:36,731 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:15:36" (1/1) ... [2022-11-22 02:15:36,731 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:15:36" (1/1) ... [2022-11-22 02:15:36,773 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:15:36" (1/1) ... [2022-11-22 02:15:36,778 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:15:36" (1/1) ... [2022-11-22 02:15:36,781 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:15:36" (1/1) ... [2022-11-22 02:15:36,785 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:15:36" (1/1) ... [2022-11-22 02:15:36,791 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:15:36,792 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:15:36,792 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:15:36,792 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:15:36,795 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:15:36" (1/1) ... [2022-11-22 02:15:36,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:15:36,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ff24010-5fb8-4abd-9dd2-91dcec412b09/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:15:36,866 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ff24010-5fb8-4abd-9dd2-91dcec412b09/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:15:36,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ff24010-5fb8-4abd-9dd2-91dcec412b09/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:15:36,924 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 02:15:36,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 02:15:36,925 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-22 02:15:36,925 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-22 02:15:36,925 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 02:15:36,925 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 02:15:36,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 02:15:36,926 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2022-11-22 02:15:36,926 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2022-11-22 02:15:36,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 02:15:36,926 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_join [2022-11-22 02:15:36,926 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_join [2022-11-22 02:15:36,926 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2022-11-22 02:15:36,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2022-11-22 02:15:36,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 02:15:36,927 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2022-11-22 02:15:36,927 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2022-11-22 02:15:36,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 02:15:36,928 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_assume [2022-11-22 02:15:36,928 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_assume [2022-11-22 02:15:36,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:15:36,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:15:37,250 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:15:37,252 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:15:37,689 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##42: assume !(0 != ~__CS_ret~0 % 256); [2022-11-22 02:15:37,689 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##41: assume 0 != ~__CS_ret~0 % 256;reader_#res#1.base, reader_#res#1.offset := 0, 0; [2022-11-22 02:15:40,311 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:15:40,554 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:15:40,554 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-22 02:15:40,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:15:40 BoogieIcfgContainer [2022-11-22 02:15:40,557 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:15:40,560 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:15:40,560 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:15:40,564 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:15:40,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:15:35" (1/3) ... [2022-11-22 02:15:40,566 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29e462d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:15:40, skipping insertion in model container [2022-11-22 02:15:40,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:15:36" (2/3) ... [2022-11-22 02:15:40,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29e462d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:15:40, skipping insertion in model container [2022-11-22 02:15:40,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:15:40" (3/3) ... [2022-11-22 02:15:40,572 INFO L112 eAbstractionObserver]: Analyzing ICFG cs_read_write_lock-2.i [2022-11-22 02:15:40,598 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:15:40,598 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 02:15:40,677 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:15:40,685 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1789f6f1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:15:40,685 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 02:15:40,690 INFO L276 IsEmpty]: Start isEmpty. Operand has 145 states, 84 states have (on average 1.369047619047619) internal successors, (115), 85 states have internal predecessors, (115), 53 states have call successors, (53), 6 states have call predecessors, (53), 6 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2022-11-22 02:15:40,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-22 02:15:40,712 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:15:40,713 INFO L195 NwaCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:15:40,714 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:15:40,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:15:40,720 INFO L85 PathProgramCache]: Analyzing trace with hash 2048231144, now seen corresponding path program 1 times [2022-11-22 02:15:40,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:15:40,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354065484] [2022-11-22 02:15:40,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:15:40,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:15:41,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:15:43,536 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2022-11-22 02:15:43,537 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:15:43,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354065484] [2022-11-22 02:15:43,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354065484] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:15:43,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:15:43,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:15:43,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975924323] [2022-11-22 02:15:43,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:15:43,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:15:43,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:15:43,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:15:43,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:15:43,608 INFO L87 Difference]: Start difference. First operand has 145 states, 84 states have (on average 1.369047619047619) internal successors, (115), 85 states have internal predecessors, (115), 53 states have call successors, (53), 6 states have call predecessors, (53), 6 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2022-11-22 02:15:45,650 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 [] [2022-11-22 02:15:45,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:15:45,998 INFO L93 Difference]: Finished difference Result 289 states and 447 transitions. [2022-11-22 02:15:45,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:15:46,001 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 69 [2022-11-22 02:15:46,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:15:46,028 INFO L225 Difference]: With dead ends: 289 [2022-11-22 02:15:46,028 INFO L226 Difference]: Without dead ends: 250 [2022-11-22 02:15:46,034 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 [2022-11-22 02:15:46,046 INFO L413 NwaCegarLoop]: 269 mSDtfsCounter, 180 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 736 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-22 02:15:46,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 736 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 74 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-11-22 02:15:46,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2022-11-22 02:15:46,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 249. [2022-11-22 02:15:46,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 145 states have (on average 1.3862068965517242) internal successors, (201), 146 states have internal predecessors, (201), 91 states have call successors, (91), 12 states have call predecessors, (91), 12 states have return successors, (99), 90 states have call predecessors, (99), 91 states have call successors, (99) [2022-11-22 02:15:46,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 391 transitions. [2022-11-22 02:15:46,142 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 391 transitions. Word has length 69 [2022-11-22 02:15:46,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:15:46,143 INFO L495 AbstractCegarLoop]: Abstraction has 249 states and 391 transitions. [2022-11-22 02:15:46,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2022-11-22 02:15:46,144 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 391 transitions. [2022-11-22 02:15:46,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-11-22 02:15:46,164 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:15:46,164 INFO L195 NwaCegarLoop]: trace histogram [19, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:15:46,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 02:15:46,166 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:15:46,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:15:46,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1530831876, now seen corresponding path program 1 times [2022-11-22 02:15:46,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:15:46,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44867013] [2022-11-22 02:15:46,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:15:46,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:15:46,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:15:48,184 INFO L134 CoverageAnalysis]: Checked inductivity of 382 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked. [2022-11-22 02:15:48,186 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:15:48,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44867013] [2022-11-22 02:15:48,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44867013] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:15:48,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:15:48,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:15:48,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735691186] [2022-11-22 02:15:48,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:15:48,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:15:48,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:15:48,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:15:48,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:15:48,198 INFO L87 Difference]: Start difference. First operand 249 states and 391 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 4 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2022-11-22 02:15:50,224 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 [] [2022-11-22 02:15:50,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:15:50,741 INFO L93 Difference]: Finished difference Result 458 states and 723 transitions. [2022-11-22 02:15:50,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:15:50,743 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 4 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) Word has length 122 [2022-11-22 02:15:50,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:15:50,748 INFO L225 Difference]: With dead ends: 458 [2022-11-22 02:15:50,749 INFO L226 Difference]: Without dead ends: 419 [2022-11-22 02:15:50,751 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 [2022-11-22 02:15:50,752 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 184 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 24 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-22 02:15:50,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 524 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 131 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-11-22 02:15:50,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2022-11-22 02:15:50,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 409. [2022-11-22 02:15:50,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 239 states have (on average 1.3765690376569037) internal successors, (329), 244 states have internal predecessors, (329), 146 states have call successors, (146), 20 states have call predecessors, (146), 23 states have return successors, (177), 144 states have call predecessors, (177), 146 states have call successors, (177) [2022-11-22 02:15:50,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 652 transitions. [2022-11-22 02:15:50,823 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 652 transitions. Word has length 122 [2022-11-22 02:15:50,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:15:50,824 INFO L495 AbstractCegarLoop]: Abstraction has 409 states and 652 transitions. [2022-11-22 02:15:50,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 4 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2022-11-22 02:15:50,824 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 652 transitions. [2022-11-22 02:15:50,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-11-22 02:15:50,833 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:15:50,834 INFO L195 NwaCegarLoop]: trace histogram [19, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:15:50,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 02:15:50,835 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:15:50,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:15:50,835 INFO L85 PathProgramCache]: Analyzing trace with hash -1058898953, now seen corresponding path program 1 times [2022-11-22 02:15:50,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:15:50,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368145216] [2022-11-22 02:15:50,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:15:50,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:15:51,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:15:52,440 INFO L134 CoverageAnalysis]: Checked inductivity of 382 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked. [2022-11-22 02:15:52,441 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:15:52,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368145216] [2022-11-22 02:15:52,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368145216] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:15:52,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:15:52,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:15:52,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760474733] [2022-11-22 02:15:52,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:15:52,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:15:52,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:15:52,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:15:52,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:15:52,446 INFO L87 Difference]: Start difference. First operand 409 states and 652 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 4 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2022-11-22 02:15:54,462 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:15:54,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:15:54,943 INFO L93 Difference]: Finished difference Result 729 states and 1140 transitions. [2022-11-22 02:15:54,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:15:54,944 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 4 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) Word has length 122 [2022-11-22 02:15:54,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:15:54,949 INFO L225 Difference]: With dead ends: 729 [2022-11-22 02:15:54,950 INFO L226 Difference]: Without dead ends: 415 [2022-11-22 02:15:54,953 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 [2022-11-22 02:15:54,954 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 186 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 23 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-22 02:15:54,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 533 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 131 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-11-22 02:15:54,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2022-11-22 02:15:55,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 405. [2022-11-22 02:15:55,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 236 states have (on average 1.3771186440677967) internal successors, (325), 241 states have internal predecessors, (325), 145 states have call successors, (145), 20 states have call predecessors, (145), 23 states have return successors, (171), 143 states have call predecessors, (171), 145 states have call successors, (171) [2022-11-22 02:15:55,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 641 transitions. [2022-11-22 02:15:55,010 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 641 transitions. Word has length 122 [2022-11-22 02:15:55,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:15:55,011 INFO L495 AbstractCegarLoop]: Abstraction has 405 states and 641 transitions. [2022-11-22 02:15:55,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 4 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2022-11-22 02:15:55,011 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 641 transitions. [2022-11-22 02:15:55,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-11-22 02:15:55,017 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:15:55,018 INFO L195 NwaCegarLoop]: trace histogram [19, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:15:55,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 02:15:55,018 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:15:55,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:15:55,019 INFO L85 PathProgramCache]: Analyzing trace with hash 398083052, now seen corresponding path program 1 times [2022-11-22 02:15:55,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:15:55,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087059814] [2022-11-22 02:15:55,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:15:55,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:15:55,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:15:56,525 INFO L134 CoverageAnalysis]: Checked inductivity of 382 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked. [2022-11-22 02:15:56,526 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:15:56,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087059814] [2022-11-22 02:15:56,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087059814] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:15:56,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:15:56,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:15:56,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068795661] [2022-11-22 02:15:56,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:15:56,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:15:56,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:15:56,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:15:56,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:15:56,533 INFO L87 Difference]: Start difference. First operand 405 states and 641 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 4 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2022-11-22 02:15:58,552 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:15:59,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:15:59,067 INFO L93 Difference]: Finished difference Result 737 states and 1149 transitions. [2022-11-22 02:15:59,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:15:59,068 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 4 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) Word has length 122 [2022-11-22 02:15:59,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:15:59,076 INFO L225 Difference]: With dead ends: 737 [2022-11-22 02:15:59,076 INFO L226 Difference]: Without dead ends: 411 [2022-11-22 02:15:59,079 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 [2022-11-22 02:15:59,082 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 188 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 22 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-22 02:15:59,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 542 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 129 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-11-22 02:15:59,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2022-11-22 02:15:59,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 401. [2022-11-22 02:15:59,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 233 states have (on average 1.3776824034334765) internal successors, (321), 238 states have internal predecessors, (321), 144 states have call successors, (144), 20 states have call predecessors, (144), 23 states have return successors, (165), 142 states have call predecessors, (165), 144 states have call successors, (165) [2022-11-22 02:15:59,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 630 transitions. [2022-11-22 02:15:59,156 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 630 transitions. Word has length 122 [2022-11-22 02:15:59,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:15:59,156 INFO L495 AbstractCegarLoop]: Abstraction has 401 states and 630 transitions. [2022-11-22 02:15:59,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 4 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2022-11-22 02:15:59,157 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 630 transitions. [2022-11-22 02:15:59,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-11-22 02:15:59,162 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:15:59,163 INFO L195 NwaCegarLoop]: trace histogram [19, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:15:59,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 02:15:59,163 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:15:59,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:15:59,164 INFO L85 PathProgramCache]: Analyzing trace with hash 90664608, now seen corresponding path program 1 times [2022-11-22 02:15:59,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:15:59,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043016086] [2022-11-22 02:15:59,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:15:59,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:15:59,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:16:00,795 INFO L134 CoverageAnalysis]: Checked inductivity of 382 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked. [2022-11-22 02:16:00,796 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:16:00,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043016086] [2022-11-22 02:16:00,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043016086] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:16:00,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:16:00,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:16:00,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248989989] [2022-11-22 02:16:00,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:16:00,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:16:00,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:16:00,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:16:00,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:16:00,805 INFO L87 Difference]: Start difference. First operand 401 states and 630 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 4 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2022-11-22 02:16:02,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:16:03,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:16:03,272 INFO L93 Difference]: Finished difference Result 745 states and 1158 transitions. [2022-11-22 02:16:03,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:16:03,273 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 4 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) Word has length 122 [2022-11-22 02:16:03,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:16:03,276 INFO L225 Difference]: With dead ends: 745 [2022-11-22 02:16:03,276 INFO L226 Difference]: Without dead ends: 357 [2022-11-22 02:16:03,279 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 [2022-11-22 02:16:03,280 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 190 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 21 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-22 02:16:03,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 548 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 127 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-11-22 02:16:03,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2022-11-22 02:16:03,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 351. [2022-11-22 02:16:03,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 205 states have (on average 1.3073170731707318) internal successors, (268), 208 states have internal predecessors, (268), 123 states have call successors, (123), 20 states have call predecessors, (123), 22 states have return successors, (139), 122 states have call predecessors, (139), 123 states have call successors, (139) [2022-11-22 02:16:03,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 530 transitions. [2022-11-22 02:16:03,313 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 530 transitions. Word has length 122 [2022-11-22 02:16:03,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:16:03,314 INFO L495 AbstractCegarLoop]: Abstraction has 351 states and 530 transitions. [2022-11-22 02:16:03,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 4 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2022-11-22 02:16:03,315 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 530 transitions. [2022-11-22 02:16:03,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-11-22 02:16:03,318 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:16:03,319 INFO L195 NwaCegarLoop]: trace histogram [19, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:16:03,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 02:16:03,319 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:16:03,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:16:03,320 INFO L85 PathProgramCache]: Analyzing trace with hash -2083066109, now seen corresponding path program 1 times [2022-11-22 02:16:03,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:16:03,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665646099] [2022-11-22 02:16:03,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:16:03,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:16:03,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:16:04,875 INFO L134 CoverageAnalysis]: Checked inductivity of 382 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked. [2022-11-22 02:16:04,875 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:16:04,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665646099] [2022-11-22 02:16:04,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665646099] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:16:04,876 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:16:04,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:16:04,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364228623] [2022-11-22 02:16:04,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:16:04,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:16:04,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:16:04,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:16:04,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:16:04,878 INFO L87 Difference]: Start difference. First operand 351 states and 530 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 4 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2022-11-22 02:16:06,894 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:16:07,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:16:07,225 INFO L93 Difference]: Finished difference Result 361 states and 549 transitions. [2022-11-22 02:16:07,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:16:07,226 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 4 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) Word has length 122 [2022-11-22 02:16:07,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:16:07,228 INFO L225 Difference]: With dead ends: 361 [2022-11-22 02:16:07,229 INFO L226 Difference]: Without dead ends: 269 [2022-11-22 02:16:07,229 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 [2022-11-22 02:16:07,231 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 42 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 520 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-22 02:16:07,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 520 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 112 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-11-22 02:16:07,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2022-11-22 02:16:07,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 265. [2022-11-22 02:16:07,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 154 states have (on average 1.3571428571428572) internal successors, (209), 157 states have internal predecessors, (209), 93 states have call successors, (93), 15 states have call predecessors, (93), 17 states have return successors, (116), 92 states have call predecessors, (116), 93 states have call successors, (116) [2022-11-22 02:16:07,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 418 transitions. [2022-11-22 02:16:07,263 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 418 transitions. Word has length 122 [2022-11-22 02:16:07,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:16:07,264 INFO L495 AbstractCegarLoop]: Abstraction has 265 states and 418 transitions. [2022-11-22 02:16:07,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 4 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2022-11-22 02:16:07,264 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 418 transitions. [2022-11-22 02:16:07,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-11-22 02:16:07,272 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:16:07,274 INFO L195 NwaCegarLoop]: trace histogram [22, 8, 8, 8, 8, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:16:07,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 02:16:07,274 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:16:07,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:16:07,275 INFO L85 PathProgramCache]: Analyzing trace with hash -488775799, now seen corresponding path program 1 times [2022-11-22 02:16:07,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:16:07,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634706470] [2022-11-22 02:16:07,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:16:07,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:16:11,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:16:15,872 INFO L134 CoverageAnalysis]: Checked inductivity of 605 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 586 trivial. 0 not checked. [2022-11-22 02:16:15,872 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:16:15,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634706470] [2022-11-22 02:16:15,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634706470] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:16:15,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2003205377] [2022-11-22 02:16:15,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:16:15,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:16:15,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ff24010-5fb8-4abd-9dd2-91dcec412b09/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:16:15,878 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ff24010-5fb8-4abd-9dd2-91dcec412b09/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:16:15,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ff24010-5fb8-4abd-9dd2-91dcec412b09/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 02:16:17,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:16:17,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 3310 conjuncts, 37 conjunts are in the unsatisfiable core [2022-11-22 02:16:17,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:16:17,994 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-22 02:16:18,005 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-22 02:16:18,576 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-22 02:16:18,592 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-22 02:16:18,958 INFO L321 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2022-11-22 02:16:18,959 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 16 [2022-11-22 02:16:19,017 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-22 02:16:19,017 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 22 [2022-11-22 02:16:19,322 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2022-11-22 02:16:19,334 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-22 02:16:19,335 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 7 [2022-11-22 02:16:19,630 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 02:16:19,638 INFO L134 CoverageAnalysis]: Checked inductivity of 605 backedges. 230 proven. 55 refuted. 0 times theorem prover too weak. 320 trivial. 0 not checked. [2022-11-22 02:16:19,641 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:16:19,853 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2022-11-22 02:16:19,857 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-22 02:16:23,720 INFO L321 Elim1Store]: treesize reduction 76, result has 43.3 percent of original size [2022-11-22 02:16:23,721 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 37 treesize of output 103 [2022-11-22 02:16:23,788 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:16:23,789 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 46 [2022-11-22 02:16:23,859 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:16:23,860 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 47 [2022-11-22 02:16:24,286 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-22 02:16:24,321 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-22 02:16:26,802 INFO L321 Elim1Store]: treesize reduction 76, result has 43.3 percent of original size [2022-11-22 02:16:26,803 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 35 treesize of output 106 [2022-11-22 02:16:26,885 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:16:26,886 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 47 [2022-11-22 02:16:26,973 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:16:26,973 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 49 [2022-11-22 02:16:27,507 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:16:27,509 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-22 02:16:27,811 INFO L321 Elim1Store]: treesize reduction 76, result has 43.3 percent of original size [2022-11-22 02:16:27,812 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 159 treesize of output 231 [2022-11-22 02:16:27,853 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:16:27,854 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 144 treesize of output 165 [2022-11-22 02:16:27,894 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:16:27,895 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 138 treesize of output 159 [2022-11-22 02:16:28,185 INFO L134 CoverageAnalysis]: Checked inductivity of 605 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 586 trivial. 0 not checked. [2022-11-22 02:16:28,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2003205377] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:16:28,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [927319841] [2022-11-22 02:16:28,229 INFO L159 IcfgInterpreter]: Started Sifa with 85 locations of interest [2022-11-22 02:16:28,230 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 02:16:28,235 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 02:16:28,245 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 02:16:28,245 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 02:16:28,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:28,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:28,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:28,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:28,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:28,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:28,686 INFO L217 Elim1Store]: Index analysis took 133 ms [2022-11-22 02:16:31,543 INFO L321 Elim1Store]: treesize reduction 1860, result has 14.5 percent of original size [2022-11-22 02:16:31,545 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 18 select indices, 18 select index equivalence classes, 78 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 95 case distinctions, treesize of input 172 treesize of output 445 [2022-11-22 02:16:31,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:31,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:31,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:31,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:31,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:31,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:31,766 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 11 select indices, 11 select index equivalence classes, 144 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 119 [2022-11-22 02:16:32,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:32,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:32,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:32,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:32,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:32,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:32,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:32,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:32,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:32,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:32,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:32,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:32,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:32,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:32,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:32,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:32,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:32,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:32,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:32,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:32,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:32,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:32,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:32,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:32,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:32,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:32,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:32,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:32,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:32,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:32,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:32,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:32,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:32,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:32,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:32,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:32,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:32,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:32,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:32,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:32,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:32,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:32,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:32,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:32,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:32,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:32,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:32,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:32,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:32,273 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 120 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 415 treesize of output 328 [2022-11-22 02:16:32,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:32,323 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 29 [2022-11-22 02:16:32,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:32,371 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 29 [2022-11-22 02:16:32,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:32,425 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 29 [2022-11-22 02:16:32,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:32,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:32,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:32,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:32,484 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 59 [2022-11-22 02:16:32,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:32,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:32,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:32,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:32,607 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 59 [2022-11-22 02:16:32,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:32,667 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 29 [2022-11-22 02:16:32,718 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 46 [2022-11-22 02:16:32,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:32,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:32,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:32,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:32,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:33,022 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 19 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 103 [2022-11-22 02:16:33,076 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 46 [2022-11-22 02:16:33,128 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 19 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 93 [2022-11-22 02:16:33,177 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 22 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 110 [2022-11-22 02:16:33,226 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 26 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 129 treesize of output 127 [2022-11-22 02:16:33,274 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 31 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 140 [2022-11-22 02:16:33,330 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 37 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 153 treesize of output 153 [2022-11-22 02:16:33,379 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 44 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 165 treesize of output 166 [2022-11-22 02:16:33,419 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2022-11-22 02:16:33,456 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2022-11-22 02:16:33,494 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2022-11-22 02:16:33,533 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2022-11-22 02:16:33,573 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2022-11-22 02:16:33,612 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2022-11-22 02:16:33,655 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2022-11-22 02:16:33,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:33,701 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 11 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-22 02:16:33,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:33,755 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 11 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-22 02:16:34,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:34,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:34,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:34,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:34,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:34,220 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 19 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 103 [2022-11-22 02:16:34,324 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 46 [2022-11-22 02:16:34,383 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 19 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 93 [2022-11-22 02:16:34,441 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 22 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 110 [2022-11-22 02:16:34,500 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 26 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 129 treesize of output 127 [2022-11-22 02:16:34,560 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 31 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 140 [2022-11-22 02:16:34,633 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 37 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 153 treesize of output 153 [2022-11-22 02:16:34,701 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 44 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 165 treesize of output 166 [2022-11-22 02:16:34,753 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2022-11-22 02:16:34,804 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2022-11-22 02:16:34,858 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2022-11-22 02:16:34,904 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2022-11-22 02:16:34,951 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2022-11-22 02:16:34,996 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2022-11-22 02:16:35,042 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2022-11-22 02:16:36,157 INFO L321 Elim1Store]: treesize reduction 93, result has 14.7 percent of original size [2022-11-22 02:16:36,158 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 21 [2022-11-22 02:16:36,253 INFO L321 Elim1Store]: treesize reduction 141, result has 10.2 percent of original size [2022-11-22 02:16:36,253 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 12 case distinctions, treesize of input 60 treesize of output 57 [2022-11-22 02:16:37,003 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 02:16:37,011 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 02:16:37,019 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 02:16:37,279 INFO L321 Elim1Store]: treesize reduction 212, result has 34.8 percent of original size [2022-11-22 02:16:37,279 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 193 treesize of output 113 [2022-11-22 02:16:37,295 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-22 02:16:37,521 INFO L321 Elim1Store]: treesize reduction 200, result has 36.1 percent of original size [2022-11-22 02:16:37,521 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 189 treesize of output 120 [2022-11-22 02:16:37,824 INFO L321 Elim1Store]: treesize reduction 212, result has 34.8 percent of original size [2022-11-22 02:16:37,824 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 193 treesize of output 113 [2022-11-22 02:16:37,847 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-22 02:16:38,973 INFO L321 Elim1Store]: treesize reduction 93, result has 14.7 percent of original size [2022-11-22 02:16:38,974 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 21 [2022-11-22 02:16:40,992 INFO L321 Elim1Store]: treesize reduction 93, result has 14.7 percent of original size [2022-11-22 02:16:40,992 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 21 [2022-11-22 02:16:41,312 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 16 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 49 [2022-11-22 02:16:41,342 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 16 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 49 [2022-11-22 02:16:41,372 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 16 [2022-11-22 02:16:41,417 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 16 [2022-11-22 02:16:41,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:41,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:41,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:41,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:41,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:41,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:41,479 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 55 [2022-11-22 02:16:41,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:41,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:41,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:41,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:41,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:41,542 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 14 select indices, 14 select index equivalence classes, 111 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 278 treesize of output 212 [2022-11-22 02:16:41,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:41,573 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2022-11-22 02:16:41,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:41,603 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2022-11-22 02:16:41,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:41,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:41,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:41,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:41,641 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 21 [2022-11-22 02:16:41,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:41,674 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-22 02:16:41,702 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 02:16:41,729 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:16:41,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:41,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:41,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:41,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:41,770 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 16 [2022-11-22 02:16:41,800 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 02:16:41,827 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:16:41,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:41,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:41,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:41,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:41,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:41,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:41,882 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 17 select indices, 17 select index equivalence classes, 142 disjoint index pairs (out of 136 index pairs), introduced 17 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 52 [2022-11-22 02:16:42,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:42,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:42,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:42,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:42,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:42,827 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 14 select indices, 14 select index equivalence classes, 111 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 278 treesize of output 212 [2022-11-22 02:16:42,861 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 02:16:42,886 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:16:42,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:42,915 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-22 02:16:42,945 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 02:16:42,974 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:16:43,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:43,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:43,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:43,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:43,011 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 21 [2022-11-22 02:16:43,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:43,049 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2022-11-22 02:16:43,079 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 02:16:43,106 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:16:43,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:43,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:43,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:43,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:43,148 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 16 [2022-11-22 02:16:43,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:43,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:43,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:43,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:43,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:43,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:43,218 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 55 [2022-11-22 02:16:43,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:43,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:43,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:43,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:43,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:43,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:43,336 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 17 select indices, 17 select index equivalence classes, 142 disjoint index pairs (out of 136 index pairs), introduced 17 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 52 [2022-11-22 02:16:43,378 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 16 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 49 [2022-11-22 02:16:43,419 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 16 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 49 [2022-11-22 02:16:43,454 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 16 [2022-11-22 02:16:43,496 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 16 [2022-11-22 02:16:43,931 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 1 [2022-11-22 02:16:43,958 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 1 [2022-11-22 02:16:43,984 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2022-11-22 02:16:45,117 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 24 [2022-11-22 02:16:45,471 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 24 [2022-11-22 02:16:45,874 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 1 [2022-11-22 02:16:45,900 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2022-11-22 02:16:45,930 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 1 [2022-11-22 02:19:02,055 INFO L197 IcfgInterpreter]: Interpreting procedure ##fun~$Pointer$~TO~$Pointer$ with input of size 604 for LOIs [2022-11-22 02:19:15,258 WARN L233 SmtUtils]: Spent 10.83s on a formula simplification. DAG size of input: 663 DAG size of output: 460 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-22 02:19:15,262 INFO L321 Elim1Store]: treesize reduction 1140, result has 44.4 percent of original size [2022-11-22 02:19:15,264 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 17 select indices, 17 select index equivalence classes, 59 disjoint index pairs (out of 136 index pairs), introduced 18 new quantified variables, introduced 101 case distinctions, treesize of input 1380 treesize of output 2236 [2022-11-22 02:19:16,226 INFO L217 Elim1Store]: Index analysis took 630 ms [2022-11-22 02:19:29,848 WARN L233 SmtUtils]: Spent 13.61s on a formula simplification. DAG size of input: 841 DAG size of output: 356 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-22 02:19:29,850 INFO L321 Elim1Store]: treesize reduction 1868, result has 30.5 percent of original size [2022-11-22 02:19:29,851 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 22 select indices, 22 select index equivalence classes, 70 disjoint index pairs (out of 231 index pairs), introduced 23 new quantified variables, introduced 184 case distinctions, treesize of input 1336 treesize of output 2091 [2022-11-22 02:24:40,850 WARN L233 SmtUtils]: Spent 25.58s on a formula simplification. DAG size of input: 1018 DAG size of output: 1018 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-22 02:24:58,256 WARN L233 SmtUtils]: Spent 13.89s on a formula simplification. DAG size of input: 998 DAG size of output: 600 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-22 02:26:58,464 WARN L233 SmtUtils]: Spent 12.89s on a formula simplification. DAG size of input: 998 DAG size of output: 600 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-22 02:28:54,445 WARN L233 SmtUtils]: Spent 13.02s on a formula simplification. DAG size of input: 998 DAG size of output: 600 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)