./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/list-simple/dll2n_insert_equal.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2886a431-8452-45fa-9c5c-367da695ad0f/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2886a431-8452-45fa-9c5c-367da695ad0f/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2886a431-8452-45fa-9c5c-367da695ad0f/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2886a431-8452-45fa-9c5c-367da695ad0f/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/list-simple/dll2n_insert_equal.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2886a431-8452-45fa-9c5c-367da695ad0f/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2886a431-8452-45fa-9c5c-367da695ad0f/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 93d1510274ba16ddd1276e8e93ff0a644bf6fb4a262c4c9dde32fe8591d5ce8c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-26 01:00:45,985 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 01:00:45,987 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 01:00:46,030 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 01:00:46,030 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 01:00:46,034 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 01:00:46,037 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 01:00:46,040 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 01:00:46,042 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 01:00:46,047 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 01:00:46,049 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 01:00:46,051 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 01:00:46,052 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 01:00:46,054 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 01:00:46,056 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 01:00:46,057 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 01:00:46,059 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 01:00:46,060 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 01:00:46,062 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 01:00:46,068 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 01:00:46,070 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 01:00:46,072 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 01:00:46,074 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 01:00:46,075 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 01:00:46,085 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 01:00:46,085 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 01:00:46,086 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 01:00:46,088 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 01:00:46,088 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 01:00:46,089 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 01:00:46,090 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 01:00:46,090 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 01:00:46,092 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 01:00:46,094 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 01:00:46,097 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 01:00:46,097 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 01:00:46,098 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 01:00:46,098 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 01:00:46,098 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 01:00:46,100 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 01:00:46,101 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 01:00:46,102 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2886a431-8452-45fa-9c5c-367da695ad0f/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-26 01:00:46,145 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 01:00:46,146 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 01:00:46,146 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 01:00:46,147 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 01:00:46,147 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 01:00:46,148 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 01:00:46,148 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 01:00:46,148 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 01:00:46,148 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 01:00:46,149 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 01:00:46,150 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 01:00:46,150 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 01:00:46,150 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 01:00:46,150 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 01:00:46,150 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 01:00:46,151 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 01:00:46,151 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 01:00:46,151 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 01:00:46,152 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 01:00:46,152 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 01:00:46,153 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 01:00:46,153 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 01:00:46,153 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 01:00:46,153 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 01:00:46,153 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 01:00:46,154 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 01:00:46,154 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 01:00:46,154 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 01:00:46,155 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 01:00:46,155 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 01:00:46,155 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 01:00:46,156 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 01:00:46,156 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 01:00:46,156 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 01:00:46,156 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 01:00:46,157 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 01:00:46,157 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 01:00:46,157 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 01:00:46,157 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 01:00:46,157 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 01:00:46,157 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 01:00:46,158 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_2886a431-8452-45fa-9c5c-367da695ad0f/bin/utaipan-ByfvJB40ur/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2886a431-8452-45fa-9c5c-367da695ad0f/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 93d1510274ba16ddd1276e8e93ff0a644bf6fb4a262c4c9dde32fe8591d5ce8c [2022-11-26 01:00:46,502 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 01:00:46,539 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 01:00:46,542 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 01:00:46,543 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 01:00:46,544 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 01:00:46,545 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2886a431-8452-45fa-9c5c-367da695ad0f/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/list-simple/dll2n_insert_equal.i [2022-11-26 01:00:49,817 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 01:00:50,046 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 01:00:50,047 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2886a431-8452-45fa-9c5c-367da695ad0f/sv-benchmarks/c/list-simple/dll2n_insert_equal.i [2022-11-26 01:00:50,061 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2886a431-8452-45fa-9c5c-367da695ad0f/bin/utaipan-ByfvJB40ur/data/b043c4ed4/084c039be3b04fd78c96856a73d253a2/FLAG74a40e919 [2022-11-26 01:00:50,088 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2886a431-8452-45fa-9c5c-367da695ad0f/bin/utaipan-ByfvJB40ur/data/b043c4ed4/084c039be3b04fd78c96856a73d253a2 [2022-11-26 01:00:50,094 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 01:00:50,096 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 01:00:50,100 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 01:00:50,101 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 01:00:50,105 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 01:00:50,106 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 01:00:50" (1/1) ... [2022-11-26 01:00:50,108 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b3e864d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:00:50, skipping insertion in model container [2022-11-26 01:00:50,108 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 01:00:50" (1/1) ... [2022-11-26 01:00:50,117 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 01:00:50,186 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 01:00:50,613 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_2886a431-8452-45fa-9c5c-367da695ad0f/sv-benchmarks/c/list-simple/dll2n_insert_equal.i[24706,24719] [2022-11-26 01:00:50,620 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 01:00:50,634 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 01:00:50,703 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_2886a431-8452-45fa-9c5c-367da695ad0f/sv-benchmarks/c/list-simple/dll2n_insert_equal.i[24706,24719] [2022-11-26 01:00:50,704 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 01:00:50,733 INFO L208 MainTranslator]: Completed translation [2022-11-26 01:00:50,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:00:50 WrapperNode [2022-11-26 01:00:50,734 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 01:00:50,736 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 01:00:50,736 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 01:00:50,736 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 01:00:50,744 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:00:50" (1/1) ... [2022-11-26 01:00:50,771 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:00:50" (1/1) ... [2022-11-26 01:00:50,794 INFO L138 Inliner]: procedures = 127, calls = 44, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 136 [2022-11-26 01:00:50,795 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 01:00:50,796 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 01:00:50,796 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 01:00:50,796 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 01:00:50,806 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:00:50" (1/1) ... [2022-11-26 01:00:50,806 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:00:50" (1/1) ... [2022-11-26 01:00:50,809 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:00:50" (1/1) ... [2022-11-26 01:00:50,810 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:00:50" (1/1) ... [2022-11-26 01:00:50,834 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:00:50" (1/1) ... [2022-11-26 01:00:50,838 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:00:50" (1/1) ... [2022-11-26 01:00:50,840 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:00:50" (1/1) ... [2022-11-26 01:00:50,841 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:00:50" (1/1) ... [2022-11-26 01:00:50,844 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 01:00:50,845 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 01:00:50,845 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 01:00:50,845 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 01:00:50,846 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:00:50" (1/1) ... [2022-11-26 01:00:50,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 01:00:50,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2886a431-8452-45fa-9c5c-367da695ad0f/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 01:00:50,893 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2886a431-8452-45fa-9c5c-367da695ad0f/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 01:00:50,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2886a431-8452-45fa-9c5c-367da695ad0f/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 01:00:50,943 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2022-11-26 01:00:50,943 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2022-11-26 01:00:50,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 01:00:50,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 01:00:50,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-26 01:00:50,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 01:00:50,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 01:00:50,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-26 01:00:50,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-26 01:00:50,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 01:00:50,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-26 01:00:50,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 01:00:50,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 01:00:50,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 01:00:51,129 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 01:00:51,131 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 01:00:51,174 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2022-11-26 01:00:51,446 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 01:00:51,574 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 01:00:51,574 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-26 01:00:51,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:00:51 BoogieIcfgContainer [2022-11-26 01:00:51,576 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 01:00:51,579 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 01:00:51,579 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 01:00:51,582 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 01:00:51,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 01:00:50" (1/3) ... [2022-11-26 01:00:51,583 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@178a566e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 01:00:51, skipping insertion in model container [2022-11-26 01:00:51,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:00:50" (2/3) ... [2022-11-26 01:00:51,583 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@178a566e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 01:00:51, skipping insertion in model container [2022-11-26 01:00:51,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:00:51" (3/3) ... [2022-11-26 01:00:51,585 INFO L112 eAbstractionObserver]: Analyzing ICFG dll2n_insert_equal.i [2022-11-26 01:00:51,603 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 01:00:51,603 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-26 01:00:51,649 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 01:00:51,655 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;@7c3ae26b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 01:00:51,656 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-26 01:00:51,660 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 15 states have (on average 1.6) internal successors, (24), 17 states have internal predecessors, (24), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:00:51,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-26 01:00:51,669 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:00:51,669 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:00:51,670 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 01:00:51,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:00:51,678 INFO L85 PathProgramCache]: Analyzing trace with hash -2126926048, now seen corresponding path program 1 times [2022-11-26 01:00:51,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:00:51,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303794025] [2022-11-26 01:00:51,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:00:51,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:00:51,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:00:52,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 01:00:52,165 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:00:52,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303794025] [2022-11-26 01:00:52,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303794025] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:00:52,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:00:52,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 01:00:52,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5694702] [2022-11-26 01:00:52,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:00:52,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 01:00:52,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:00:52,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 01:00:52,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 01:00:52,205 INFO L87 Difference]: Start difference. First operand has 19 states, 15 states have (on average 1.6) internal successors, (24), 17 states have internal predecessors, (24), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:00:52,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:00:52,392 INFO L93 Difference]: Finished difference Result 37 states and 51 transitions. [2022-11-26 01:00:52,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 01:00:52,395 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-26 01:00:52,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:00:52,402 INFO L225 Difference]: With dead ends: 37 [2022-11-26 01:00:52,402 INFO L226 Difference]: Without dead ends: 15 [2022-11-26 01:00:52,405 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 01:00:52,408 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 3 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 01:00:52,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 32 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 01:00:52,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-11-26 01:00:52,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 13. [2022-11-26 01:00:52,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:00:52,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2022-11-26 01:00:52,444 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 16 transitions. Word has length 8 [2022-11-26 01:00:52,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:00:52,451 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 16 transitions. [2022-11-26 01:00:52,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:00:52,453 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2022-11-26 01:00:52,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-26 01:00:52,453 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:00:52,454 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:00:52,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 01:00:52,454 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 01:00:52,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:00:52,455 INFO L85 PathProgramCache]: Analyzing trace with hash -177876721, now seen corresponding path program 1 times [2022-11-26 01:00:52,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:00:52,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322969236] [2022-11-26 01:00:52,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:00:52,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:00:52,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:00:52,822 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 01:00:52,822 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:00:52,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322969236] [2022-11-26 01:00:52,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322969236] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 01:00:52,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [394180057] [2022-11-26 01:00:52,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:00:52,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 01:00:52,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2886a431-8452-45fa-9c5c-367da695ad0f/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 01:00:52,829 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2886a431-8452-45fa-9c5c-367da695ad0f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 01:00:52,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2886a431-8452-45fa-9c5c-367da695ad0f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-26 01:00:53,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:00:53,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-26 01:00:53,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 01:00:53,202 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 01:00:53,207 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 01:00:53,236 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 01:00:53,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [394180057] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 01:00:53,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1606947663] [2022-11-26 01:00:53,275 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-11-26 01:00:53,275 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 01:00:53,278 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 01:00:53,296 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 01:00:53,297 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 01:00:53,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:00:53,404 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-26 01:00:53,406 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 26 [2022-11-26 01:00:53,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:00:53,462 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 01:00:53,463 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-26 01:00:53,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:00:53,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:00:53,546 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-26 01:00:53,546 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-26 01:00:53,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:00:53,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:00:53,571 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-26 01:00:53,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:00:53,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:00:53,652 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 28 [2022-11-26 01:00:53,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:00:53,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:00:53,669 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2022-11-26 01:00:53,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:00:53,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:00:53,698 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-26 01:00:53,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:00:53,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:00:53,724 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-26 01:00:53,922 INFO L321 Elim1Store]: treesize reduction 92, result has 21.4 percent of original size [2022-11-26 01:00:53,923 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 275 treesize of output 284 [2022-11-26 01:00:54,085 INFO L321 Elim1Store]: treesize reduction 132, result has 20.0 percent of original size [2022-11-26 01:00:54,086 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 278 treesize of output 294 [2022-11-26 01:00:54,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:00:54,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:00:54,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:00:54,745 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-11-26 01:00:54,745 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 283 treesize of output 269 [2022-11-26 01:00:54,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:00:54,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:00:54,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:00:54,851 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-26 01:00:54,852 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 287 treesize of output 272 [2022-11-26 01:00:54,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:00:54,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:00:54,914 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 276 treesize of output 267 [2022-11-26 01:00:54,944 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:00:54,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:00:54,946 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:00:54,947 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:00:54,949 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:00:55,022 INFO L321 Elim1Store]: treesize reduction 66, result has 32.0 percent of original size [2022-11-26 01:00:55,023 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 423 treesize of output 446 [2022-11-26 01:00:55,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:00:55,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:00:55,077 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 288 treesize of output 279 [2022-11-26 01:00:55,122 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:00:55,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:00:55,127 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:00:55,129 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:00:55,201 INFO L321 Elim1Store]: treesize reduction 74, result has 34.5 percent of original size [2022-11-26 01:00:55,202 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 410 treesize of output 434 [2022-11-26 01:00:55,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:00:55,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:00:55,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:00:55,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:00:55,321 INFO L321 Elim1Store]: treesize reduction 22, result has 4.3 percent of original size [2022-11-26 01:00:55,322 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 415 treesize of output 370 [2022-11-26 01:00:55,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:00:55,657 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 431 treesize of output 386 [2022-11-26 01:00:55,677 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 366 treesize of output 362 [2022-11-26 01:00:55,732 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 21 treesize of output 13 [2022-11-26 01:00:55,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:00:55,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:00:55,834 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 418 treesize of output 365 [2022-11-26 01:00:55,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:00:55,852 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 345 treesize of output 331 [2022-11-26 01:00:55,907 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 21 treesize of output 13 [2022-11-26 01:00:56,004 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-26 01:00:56,013 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-26 01:00:56,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:00:56,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:00:56,075 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:00:56,134 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-26 01:00:56,134 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 184 [2022-11-26 01:00:56,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:00:56,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:00:56,179 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:00:56,180 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:00:56,214 INFO L321 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-11-26 01:00:56,214 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 158 treesize of output 173 [2022-11-26 01:00:56,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:00:56,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:00:56,270 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2022-11-26 01:00:56,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:00:56,303 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-11-26 01:00:56,386 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-26 01:00:56,387 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 142 treesize of output 101 [2022-11-26 01:00:56,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:00:56,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:00:56,402 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 71 [2022-11-26 01:00:56,493 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-26 01:00:56,494 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 143 treesize of output 122 [2022-11-26 01:00:56,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:00:56,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:00:56,512 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 78 [2022-11-26 01:00:56,587 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-26 01:00:56,599 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-26 01:00:56,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:00:56,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:00:56,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:00:56,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:00:56,691 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:00:56,713 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-26 01:00:56,713 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 33 [2022-11-26 01:00:56,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:00:56,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:00:56,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:00:56,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:00:56,750 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:00:56,775 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-26 01:00:56,776 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 33 [2022-11-26 01:00:56,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:00:56,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:00:56,833 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-26 01:00:56,926 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:00:56,927 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:00:56,939 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 01:00:56,960 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-26 01:00:56,971 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-26 01:00:56,978 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 01:00:58,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1606947663] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:00:58,037 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-26 01:00:58,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [3, 3, 3] total 8 [2022-11-26 01:00:58,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409517920] [2022-11-26 01:00:58,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:00:58,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 01:00:58,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:00:58,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 01:00:58,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-11-26 01:00:58,040 INFO L87 Difference]: Start difference. First operand 13 states and 16 transitions. Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:00:58,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:00:58,494 INFO L93 Difference]: Finished difference Result 19 states and 24 transitions. [2022-11-26 01:00:58,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 01:00:58,496 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-26 01:00:58,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:00:58,497 INFO L225 Difference]: With dead ends: 19 [2022-11-26 01:00:58,497 INFO L226 Difference]: Without dead ends: 14 [2022-11-26 01:00:58,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-11-26 01:00:58,498 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 9 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-26 01:00:58,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 6 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-26 01:00:58,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-26 01:00:58,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-11-26 01:00:58,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:00:58,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 17 transitions. [2022-11-26 01:00:58,514 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 17 transitions. Word has length 11 [2022-11-26 01:00:58,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:00:58,515 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 17 transitions. [2022-11-26 01:00:58,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:00:58,515 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2022-11-26 01:00:58,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-26 01:00:58,517 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:00:58,517 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:00:58,526 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2886a431-8452-45fa-9c5c-367da695ad0f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-26 01:00:58,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2886a431-8452-45fa-9c5c-367da695ad0f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 01:00:58,723 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 01:00:58,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:00:58,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1298275819, now seen corresponding path program 1 times [2022-11-26 01:00:58,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:00:58,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191300046] [2022-11-26 01:00:58,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:00:58,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:00:58,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:00:58,905 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-26 01:00:58,906 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:00:58,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191300046] [2022-11-26 01:00:58,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191300046] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 01:00:58,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1459813887] [2022-11-26 01:00:58,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:00:58,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 01:00:58,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2886a431-8452-45fa-9c5c-367da695ad0f/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 01:00:58,911 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2886a431-8452-45fa-9c5c-367da695ad0f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 01:00:58,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2886a431-8452-45fa-9c5c-367da695ad0f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-26 01:00:59,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:00:59,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-26 01:00:59,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 01:00:59,124 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-26 01:00:59,125 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 01:00:59,141 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-26 01:00:59,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1459813887] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 01:00:59,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [916856374] [2022-11-26 01:00:59,144 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-11-26 01:00:59,144 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 01:00:59,144 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 01:00:59,145 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 01:00:59,145 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 01:00:59,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:00:59,182 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 01:00:59,182 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-26 01:00:59,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:00:59,195 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-26 01:00:59,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:00:59,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:00:59,250 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-26 01:00:59,251 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-26 01:00:59,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:00:59,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:00:59,269 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-26 01:00:59,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:00:59,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:00:59,313 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-26 01:00:59,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:00:59,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:00:59,337 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-26 01:00:59,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:00:59,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:00:59,360 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 28 [2022-11-26 01:00:59,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:00:59,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:00:59,400 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2022-11-26 01:00:59,531 INFO L321 Elim1Store]: treesize reduction 92, result has 21.4 percent of original size [2022-11-26 01:00:59,532 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 275 treesize of output 284 [2022-11-26 01:00:59,643 INFO L321 Elim1Store]: treesize reduction 132, result has 20.0 percent of original size [2022-11-26 01:00:59,643 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 278 treesize of output 294 [2022-11-26 01:01:00,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:01:00,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:01:00,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:01:00,433 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-11-26 01:01:00,433 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 387 treesize of output 365 [2022-11-26 01:01:00,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:01:00,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:01:00,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:01:00,532 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-26 01:01:00,533 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 391 treesize of output 368 [2022-11-26 01:01:00,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:01:00,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:01:00,589 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 380 treesize of output 371 [2022-11-26 01:01:00,622 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:01:00,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:01:00,624 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:01:00,625 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:01:00,626 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:01:00,689 INFO L321 Elim1Store]: treesize reduction 66, result has 32.0 percent of original size [2022-11-26 01:01:00,690 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 527 treesize of output 550 [2022-11-26 01:01:00,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:01:00,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:01:00,741 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 398 treesize of output 389 [2022-11-26 01:01:00,769 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:01:00,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:01:00,773 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:01:00,774 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:01:00,837 INFO L321 Elim1Store]: treesize reduction 74, result has 34.5 percent of original size [2022-11-26 01:01:00,838 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 520 treesize of output 549 [2022-11-26 01:01:01,215 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 49 [2022-11-26 01:01:01,230 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 21 treesize of output 13 [2022-11-26 01:01:01,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:01:01,248 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 29 treesize of output 17 [2022-11-26 01:01:01,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:01:01,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:01:01,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:01:01,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:01:01,336 INFO L321 Elim1Store]: treesize reduction 22, result has 4.3 percent of original size [2022-11-26 01:01:01,337 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 531 treesize of output 478 [2022-11-26 01:01:01,507 INFO L321 Elim1Store]: treesize reduction 38, result has 2.6 percent of original size [2022-11-26 01:01:01,507 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 628 treesize of output 565 [2022-11-26 01:01:01,525 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 474 treesize of output 470 [2022-11-26 01:01:01,545 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 548 treesize of output 504 [2022-11-26 01:01:01,926 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-26 01:01:01,935 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-26 01:01:01,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:01:01,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:01:01,980 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:01:02,038 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-26 01:01:02,038 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 184 [2022-11-26 01:01:02,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:01:02,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:01:02,091 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:01:02,093 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:01:02,121 INFO L321 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-11-26 01:01:02,121 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 158 treesize of output 178 [2022-11-26 01:01:02,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:01:02,153 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-26 01:01:02,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:01:02,177 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-26 01:01:02,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:01:02,211 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-11-26 01:01:02,244 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-26 01:01:02,245 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 61 treesize of output 30 [2022-11-26 01:01:02,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:01:02,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:01:02,259 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 20 [2022-11-26 01:01:02,314 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 67 [2022-11-26 01:01:02,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:01:02,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:01:02,326 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 45 [2022-11-26 01:01:02,337 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 3 [2022-11-26 01:01:02,411 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-26 01:01:02,433 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-26 01:01:02,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:01:02,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:01:02,510 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-26 01:01:02,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:01:02,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:01:02,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:01:02,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:01:02,539 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:01:02,559 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-26 01:01:02,560 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 33 [2022-11-26 01:01:02,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:01:02,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:01:02,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:01:02,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:01:02,590 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:01:02,614 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-26 01:01:02,614 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 33 [2022-11-26 01:01:03,598 INFO L321 Elim1Store]: treesize reduction 175, result has 33.7 percent of original size [2022-11-26 01:01:03,599 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 282 treesize of output 311 [2022-11-26 01:01:04,073 INFO L321 Elim1Store]: treesize reduction 203, result has 23.1 percent of original size [2022-11-26 01:01:04,074 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 167 treesize of output 168 [2022-11-26 01:01:04,229 INFO L321 Elim1Store]: treesize reduction 52, result has 33.3 percent of original size [2022-11-26 01:01:04,229 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 36 [2022-11-26 01:01:04,267 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-26 01:01:04,342 INFO L321 Elim1Store]: treesize reduction 40, result has 16.7 percent of original size [2022-11-26 01:01:04,343 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 64 treesize of output 38 [2022-11-26 01:01:04,364 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 15 treesize of output 7 [2022-11-26 01:01:04,406 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 01:01:04,406 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 42 [2022-11-26 01:01:04,769 INFO L321 Elim1Store]: treesize reduction 39, result has 39.1 percent of original size [2022-11-26 01:01:04,770 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 100 treesize of output 88 [2022-11-26 01:01:04,798 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-26 01:01:04,832 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-26 01:01:04,890 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-26 01:01:04,890 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 32 treesize of output 24 [2022-11-26 01:01:04,923 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:01:04,939 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 01:01:04,939 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 145 treesize of output 131 [2022-11-26 01:01:05,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:01:05,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:01:05,459 INFO L321 Elim1Store]: treesize reduction 72, result has 49.7 percent of original size [2022-11-26 01:01:05,460 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 348 treesize of output 402 [2022-11-26 01:01:05,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:01:05,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:01:05,684 INFO L321 Elim1Store]: treesize reduction 60, result has 34.1 percent of original size [2022-11-26 01:01:05,684 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 257 treesize of output 233 [2022-11-26 01:01:05,718 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-26 01:01:05,745 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 45 treesize of output 1 [2022-11-26 01:01:05,759 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 [2022-11-26 01:01:10,164 INFO L321 Elim1Store]: treesize reduction 151, result has 39.4 percent of original size [2022-11-26 01:01:10,165 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 8 new quantified variables, introduced 17 case distinctions, treesize of input 2291 treesize of output 2121 [2022-11-26 01:01:10,373 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-26 01:01:10,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:01:10,447 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 155 treesize of output 141 [2022-11-26 01:01:10,767 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 88 [2022-11-26 01:01:10,844 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 [2022-11-26 01:01:10,959 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 [2022-11-26 01:01:11,169 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:01:11,212 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:01:11,231 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:01:11,287 INFO L321 Elim1Store]: treesize reduction 49, result has 19.7 percent of original size [2022-11-26 01:01:11,288 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 7 case distinctions, treesize of input 167 treesize of output 315 [2022-11-26 01:01:11,585 INFO L321 Elim1Store]: treesize reduction 177, result has 15.7 percent of original size [2022-11-26 01:01:11,586 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 15 case distinctions, treesize of input 197 treesize of output 359 [2022-11-26 01:01:11,672 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 01:01:11,724 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:01:11,764 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:01:11,784 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:01:11,792 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:01:11,845 INFO L321 Elim1Store]: treesize reduction 61, result has 16.4 percent of original size [2022-11-26 01:01:11,845 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 7 case distinctions, treesize of input 188 treesize of output 332 [2022-11-26 01:01:11,964 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:01:11,990 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:01:12,003 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:01:12,038 INFO L321 Elim1Store]: treesize reduction 61, result has 16.4 percent of original size [2022-11-26 01:01:12,038 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 7 case distinctions, treesize of input 167 treesize of output 315 [2022-11-26 01:01:12,082 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:01:12,083 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:01:12,098 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:01:12,099 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:01:12,100 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:01:12,100 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:01:12,101 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:01:12,103 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 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 158 treesize of output 296 [2022-11-26 01:01:12,145 WARN L193 Elim1Store]: Array PQE input equivalent to false [2022-11-26 01:01:12,713 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 01:01:12,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:01:12,744 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 763 treesize of output 760 [2022-11-26 01:01:12,968 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 01:01:12,989 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 [2022-11-26 01:01:13,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:01:13,033 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 110 treesize of output 107 [2022-11-26 01:01:13,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:01:13,135 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 108 [2022-11-26 01:01:13,228 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 [2022-11-26 01:01:13,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:01:13,256 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 1 [2022-11-26 01:01:13,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:01:13,287 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2022-11-26 01:01:13,312 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 [2022-11-26 01:01:19,531 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:01:19,608 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:01:56,855 WARN L233 SmtUtils]: Spent 37.21s on a formula simplification. DAG size of input: 105 DAG size of output: 50 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-26 01:01:56,856 INFO L321 Elim1Store]: treesize reduction 348, result has 19.3 percent of original size [2022-11-26 01:01:56,858 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 14 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 16 new quantified variables, introduced 30 case distinctions, treesize of input 2343 treesize of output 14720 [2022-11-26 01:03:10,493 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:03:16,922 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:03:16,932 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:03:16,933 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:03:16,952 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:03:16,984 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:03:17,118 INFO L217 Elim1Store]: Index analysis took 686 ms