./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a86b4990-4fe2-4496-82c7-3342f4a0d319/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a86b4990-4fe2-4496-82c7-3342f4a0d319/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a86b4990-4fe2-4496-82c7-3342f4a0d319/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a86b4990-4fe2-4496-82c7-3342f4a0d319/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a86b4990-4fe2-4496-82c7-3342f4a0d319/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a86b4990-4fe2-4496-82c7-3342f4a0d319/bin/utaipan-TEXQjIfE4P --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 8a34048511216dfe9a14f70dd929fd2de5a6eaf4560cb9e9e466dd0467a1d6d7 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:56:17,050 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:56:17,052 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:56:17,088 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:56:17,088 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:56:17,089 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:56:17,091 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:56:17,094 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:56:17,096 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:56:17,097 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:56:17,098 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:56:17,099 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:56:17,100 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:56:17,101 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:56:17,102 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:56:17,104 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:56:17,105 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:56:17,106 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:56:17,108 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:56:17,111 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:56:17,113 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:56:17,114 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:56:17,116 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:56:17,116 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:56:17,120 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:56:17,121 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:56:17,121 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:56:17,122 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:56:17,123 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:56:17,124 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:56:17,124 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:56:17,125 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:56:17,126 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:56:17,127 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:56:17,128 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:56:17,128 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:56:17,129 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:56:17,130 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:56:17,130 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:56:17,131 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:56:17,132 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:56:17,133 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a86b4990-4fe2-4496-82c7-3342f4a0d319/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-21 01:56:17,159 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:56:17,160 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:56:17,160 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:56:17,160 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:56:17,175 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:56:17,175 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:56:17,175 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:56:17,175 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:56:17,175 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:56:17,176 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 01:56:17,176 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:56:17,176 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:56:17,176 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 01:56:17,176 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 01:56:17,177 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:56:17,177 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 01:56:17,177 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 01:56:17,177 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 01:56:17,178 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:56:17,178 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 01:56:17,178 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 01:56:17,179 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 01:56:17,179 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:56:17,179 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:56:17,179 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:56:17,179 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:56:17,179 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 01:56:17,180 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:56:17,180 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:56:17,180 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:56:17,180 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:56:17,181 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:56:17,181 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:56:17,181 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:56:17,181 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:56:17,181 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:56:17,182 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 01:56:17,182 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 01:56:17,182 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:56:17,182 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:56:17,182 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:56:17,182 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_a86b4990-4fe2-4496-82c7-3342f4a0d319/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a86b4990-4fe2-4496-82c7-3342f4a0d319/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8a34048511216dfe9a14f70dd929fd2de5a6eaf4560cb9e9e466dd0467a1d6d7 [2021-11-21 01:56:17,441 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:56:17,465 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:56:17,468 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:56:17,469 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:56:17,470 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:56:17,472 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a86b4990-4fe2-4496-82c7-3342f4a0d319/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-1.i [2021-11-21 01:56:17,539 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a86b4990-4fe2-4496-82c7-3342f4a0d319/bin/utaipan-TEXQjIfE4P/data/5733ebecd/8626aea0c7be48c2ab082e02f5e74d30/FLAGe1c0bc29a [2021-11-21 01:56:18,105 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:56:18,116 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a86b4990-4fe2-4496-82c7-3342f4a0d319/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-1.i [2021-11-21 01:56:18,139 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a86b4990-4fe2-4496-82c7-3342f4a0d319/bin/utaipan-TEXQjIfE4P/data/5733ebecd/8626aea0c7be48c2ab082e02f5e74d30/FLAGe1c0bc29a [2021-11-21 01:56:18,357 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a86b4990-4fe2-4496-82c7-3342f4a0d319/bin/utaipan-TEXQjIfE4P/data/5733ebecd/8626aea0c7be48c2ab082e02f5e74d30 [2021-11-21 01:56:18,360 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:56:18,363 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:56:18,366 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:56:18,367 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:56:18,371 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:56:18,372 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:56:18" (1/1) ... [2021-11-21 01:56:18,375 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f1cde00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:56:18, skipping insertion in model container [2021-11-21 01:56:18,377 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:56:18" (1/1) ... [2021-11-21 01:56:18,383 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:56:18,460 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:56:18,851 WARN L230 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_a86b4990-4fe2-4496-82c7-3342f4a0d319/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-1.i[33021,33034] [2021-11-21 01:56:18,920 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:56:18,928 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:56:18,958 WARN L230 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_a86b4990-4fe2-4496-82c7-3342f4a0d319/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-1.i[33021,33034] [2021-11-21 01:56:19,003 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:56:19,046 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:56:19,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:56:19 WrapperNode [2021-11-21 01:56:19,047 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:56:19,048 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:56:19,048 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:56:19,048 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:56:19,055 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:56:19" (1/1) ... [2021-11-21 01:56:19,081 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:56:19" (1/1) ... [2021-11-21 01:56:19,164 INFO L137 Inliner]: procedures = 177, calls = 186, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 621 [2021-11-21 01:56:19,176 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:56:19,177 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:56:19,177 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:56:19,178 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:56:19,186 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:56:19" (1/1) ... [2021-11-21 01:56:19,187 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:56:19" (1/1) ... [2021-11-21 01:56:19,208 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:56:19" (1/1) ... [2021-11-21 01:56:19,208 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:56:19" (1/1) ... [2021-11-21 01:56:19,241 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:56:19" (1/1) ... [2021-11-21 01:56:19,250 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:56:19" (1/1) ... [2021-11-21 01:56:19,254 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:56:19" (1/1) ... [2021-11-21 01:56:19,261 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:56:19,262 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:56:19,262 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:56:19,262 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:56:19,263 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:56:19" (1/1) ... [2021-11-21 01:56:19,286 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:56:19,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a86b4990-4fe2-4496-82c7-3342f4a0d319/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:56:19,332 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a86b4990-4fe2-4496-82c7-3342f4a0d319/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:56:19,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a86b4990-4fe2-4496-82c7-3342f4a0d319/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:56:19,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 01:56:19,388 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-21 01:56:19,388 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-21 01:56:19,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 01:56:19,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-21 01:56:19,389 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-21 01:56:19,389 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 01:56:19,389 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:56:19,389 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 01:56:19,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 01:56:19,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 01:56:19,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 01:56:19,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 01:56:19,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:56:19,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:56:19,633 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:56:19,635 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:56:20,461 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:56:20,762 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:56:20,763 INFO L301 CfgBuilder]: Removed 31 assume(true) statements. [2021-11-21 01:56:20,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:56:20 BoogieIcfgContainer [2021-11-21 01:56:20,766 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:56:20,768 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:56:20,768 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:56:20,772 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:56:20,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:56:18" (1/3) ... [2021-11-21 01:56:20,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@213aeee6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:56:20, skipping insertion in model container [2021-11-21 01:56:20,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:56:19" (2/3) ... [2021-11-21 01:56:20,775 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@213aeee6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:56:20, skipping insertion in model container [2021-11-21 01:56:20,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:56:20" (3/3) ... [2021-11-21 01:56:20,776 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test1-1.i [2021-11-21 01:56:20,782 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:56:20,782 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-21 01:56:20,849 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:56:20,858 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-21 01:56:20,859 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-21 01:56:20,878 INFO L276 IsEmpty]: Start isEmpty. Operand has 81 states, 64 states have (on average 1.78125) internal successors, (114), 75 states have internal predecessors, (114), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-21 01:56:20,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-21 01:56:20,883 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:56:20,884 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:56:20,884 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:56:20,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:56:20,889 INFO L85 PathProgramCache]: Analyzing trace with hash -1633489720, now seen corresponding path program 1 times [2021-11-21 01:56:20,899 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:56:20,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793381514] [2021-11-21 01:56:20,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:56:20,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:56:20,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:56:21,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:56:21,051 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:56:21,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793381514] [2021-11-21 01:56:21,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793381514] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:56:21,052 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:56:21,052 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:56:21,053 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468068394] [2021-11-21 01:56:21,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:56:21,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:56:21,058 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:56:21,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:56:21,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:56:21,087 INFO L87 Difference]: Start difference. First operand has 81 states, 64 states have (on average 1.78125) internal successors, (114), 75 states have internal predecessors, (114), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:56:22,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:56:22,440 INFO L93 Difference]: Finished difference Result 209 states and 376 transitions. [2021-11-21 01:56:22,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:56:22,457 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-21 01:56:22,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:56:22,467 INFO L225 Difference]: With dead ends: 209 [2021-11-21 01:56:22,467 INFO L226 Difference]: Without dead ends: 128 [2021-11-21 01:56:22,471 INFO L932 BasicCegarLoop]: 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 [2021-11-21 01:56:22,475 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 49 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:56:22,476 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 195 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-21 01:56:22,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2021-11-21 01:56:22,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 81. [2021-11-21 01:56:22,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 65 states have (on average 1.2769230769230768) internal successors, (83), 75 states have internal predecessors, (83), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-21 01:56:22,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 109 transitions. [2021-11-21 01:56:22,526 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 109 transitions. Word has length 8 [2021-11-21 01:56:22,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:56:22,526 INFO L470 AbstractCegarLoop]: Abstraction has 81 states and 109 transitions. [2021-11-21 01:56:22,527 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:56:22,527 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 109 transitions. [2021-11-21 01:56:22,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-21 01:56:22,529 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:56:22,529 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:56:22,530 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 01:56:22,530 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:56:22,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:56:22,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1995011669, now seen corresponding path program 1 times [2021-11-21 01:56:22,531 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:56:22,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306079593] [2021-11-21 01:56:22,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:56:22,532 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:56:22,550 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:56:22,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [994321432] [2021-11-21 01:56:22,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:56:22,551 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:56:22,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a86b4990-4fe2-4496-82c7-3342f4a0d319/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:56:22,568 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a86b4990-4fe2-4496-82c7-3342f4a0d319/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:56:22,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a86b4990-4fe2-4496-82c7-3342f4a0d319/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-21 01:56:22,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:56:22,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 01:56:22,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:56:22,969 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:56:22,969 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:56:23,089 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:56:23,089 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:56:23,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306079593] [2021-11-21 01:56:23,090 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:56:23,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [994321432] [2021-11-21 01:56:23,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [994321432] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:56:23,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1047050334] [2021-11-21 01:56:23,145 INFO L159 IcfgInterpreter]: Started Sifa with 31 locations of interest [2021-11-21 01:56:23,145 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:56:23,150 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:56:23,156 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:56:23,156 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:56:23,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:23,328 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:56:23,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:23,355 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:56:23,392 INFO L354 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2021-11-21 01:56:23,392 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 case distinctions, treesize of input 17 treesize of output 30 [2021-11-21 01:56:23,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:23,427 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:56:23,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:23,442 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-21 01:56:23,443 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 43 [2021-11-21 01:56:23,523 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-21 01:56:23,525 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2021-11-21 01:56:24,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:24,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:24,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:24,788 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 01:56:24,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:24,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:24,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:24,831 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 01:56:24,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:24,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:24,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:24,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:24,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:24,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:24,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:24,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:24,873 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 67 [2021-11-21 01:56:24,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:24,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:24,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:24,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:24,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:24,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:24,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:24,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:24,897 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 55 treesize of output 66 [2021-11-21 01:56:25,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:25,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:25,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:25,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:25,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:25,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:25,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:25,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:25,850 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 67 [2021-11-21 01:56:25,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:25,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:25,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:25,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:25,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:25,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:25,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:25,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:25,870 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 55 treesize of output 66 [2021-11-21 01:56:25,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:25,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:25,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:25,921 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 01:56:25,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:25,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:25,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:25,948 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 01:56:26,074 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-21 01:56:26,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [1047050334] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:56:26,600 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-21 01:56:26,600 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 3] total 11 [2021-11-21 01:56:26,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116546236] [2021-11-21 01:56:26,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:56:26,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-21 01:56:26,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:56:26,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-21 01:56:26,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=69, Unknown=0, NotChecked=0, Total=132 [2021-11-21 01:56:26,603 INFO L87 Difference]: Start difference. First operand 81 states and 109 transitions. Second operand has 8 states, 8 states have (on average 3.75) internal successors, (30), 7 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:56:28,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:56:28,761 INFO L93 Difference]: Finished difference Result 173 states and 232 transitions. [2021-11-21 01:56:28,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-21 01:56:28,770 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 7 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-11-21 01:56:28,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:56:28,771 INFO L225 Difference]: With dead ends: 173 [2021-11-21 01:56:28,772 INFO L226 Difference]: Without dead ends: 94 [2021-11-21 01:56:28,773 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=63, Invalid=69, Unknown=0, NotChecked=0, Total=132 [2021-11-21 01:56:28,774 INFO L933 BasicCegarLoop]: 93 mSDtfsCounter, 10 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:56:28,775 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 329 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-11-21 01:56:28,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2021-11-21 01:56:28,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 91. [2021-11-21 01:56:28,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 75 states have (on average 1.24) internal successors, (93), 85 states have internal predecessors, (93), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-21 01:56:28,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 119 transitions. [2021-11-21 01:56:28,789 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 119 transitions. Word has length 31 [2021-11-21 01:56:28,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:56:28,789 INFO L470 AbstractCegarLoop]: Abstraction has 91 states and 119 transitions. [2021-11-21 01:56:28,789 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 7 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:56:28,790 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 119 transitions. [2021-11-21 01:56:28,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-21 01:56:28,791 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:56:28,792 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:56:28,825 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a86b4990-4fe2-4496-82c7-3342f4a0d319/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-21 01:56:29,021 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a86b4990-4fe2-4496-82c7-3342f4a0d319/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:56:29,021 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:56:29,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:56:29,022 INFO L85 PathProgramCache]: Analyzing trace with hash 1705819700, now seen corresponding path program 1 times [2021-11-21 01:56:29,022 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:56:29,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930959002] [2021-11-21 01:56:29,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:56:29,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:56:29,037 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:56:29,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [88238380] [2021-11-21 01:56:29,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:56:29,037 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:56:29,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a86b4990-4fe2-4496-82c7-3342f4a0d319/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:56:29,038 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a86b4990-4fe2-4496-82c7-3342f4a0d319/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:56:29,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a86b4990-4fe2-4496-82c7-3342f4a0d319/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-21 01:56:29,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:56:29,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 01:56:29,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:56:29,307 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-21 01:56:29,307 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:56:29,451 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-21 01:56:29,452 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:56:29,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930959002] [2021-11-21 01:56:29,457 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:56:29,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [88238380] [2021-11-21 01:56:29,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [88238380] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:56:29,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1051712373] [2021-11-21 01:56:29,468 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2021-11-21 01:56:29,469 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:56:29,470 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:56:29,470 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:56:29,472 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:56:29,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:29,578 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:56:29,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:29,594 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:56:29,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:29,606 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-21 01:56:29,606 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 43 [2021-11-21 01:56:29,660 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-21 01:56:29,660 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2021-11-21 01:56:29,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:29,689 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-21 01:56:29,698 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:56:30,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:30,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:30,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:30,683 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 01:56:30,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:30,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:30,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:30,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:30,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:30,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:30,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:30,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:30,708 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 67 [2021-11-21 01:56:30,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:30,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:30,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:30,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:30,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:30,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:30,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:30,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:30,725 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 55 treesize of output 66 [2021-11-21 01:56:30,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:30,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:30,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:30,798 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 01:56:30,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:30,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:30,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:30,886 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-21 01:56:30,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:30,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:30,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:30,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:30,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:30,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:30,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:30,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:30,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:30,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:30,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:30,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:30,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:30,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:30,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:30,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:30,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:30,970 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 17 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 78 [2021-11-21 01:56:31,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:31,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:31,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:31,027 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-21 01:56:31,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:31,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:31,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:31,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:31,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:31,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:31,090 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 105 [2021-11-21 01:56:31,145 INFO L354 Elim1Store]: treesize reduction 94, result has 14.5 percent of original size [2021-11-21 01:56:31,145 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 117 treesize of output 125 [2021-11-21 01:56:31,212 INFO L354 Elim1Store]: treesize reduction 184, result has 10.2 percent of original size [2021-11-21 01:56:31,213 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 116 treesize of output 119 [2021-11-21 01:56:31,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:31,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:31,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:31,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:31,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:31,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:31,321 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-21 01:56:31,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:31,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:31,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:31,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:31,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:31,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:31,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:31,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:31,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:31,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:31,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:31,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:31,401 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 69 [2021-11-21 01:56:33,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,408 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 67 [2021-11-21 01:56:33,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,427 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 55 treesize of output 66 [2021-11-21 01:56:33,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,491 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 01:56:33,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,542 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 01:56:33,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,594 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 88 [2021-11-21 01:56:33,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,619 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 69 [2021-11-21 01:56:33,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,664 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-21 01:56:33,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,693 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-21 01:56:33,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,830 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-21 01:56:33,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,872 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 01:56:33,873 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 70 treesize of output 69 [2021-11-21 01:56:33,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,934 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 105 [2021-11-21 01:56:33,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:34,012 INFO L354 Elim1Store]: treesize reduction 146, result has 25.9 percent of original size [2021-11-21 01:56:34,013 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 117 treesize of output 150 [2021-11-21 01:56:34,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:34,062 INFO L354 Elim1Store]: treesize reduction 86, result has 15.7 percent of original size [2021-11-21 01:56:34,063 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 135 treesize of output 143 [2021-11-21 01:56:34,343 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 93 for LOIs [2021-11-21 01:56:34,570 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-21 01:56:35,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [1051712373] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:56:35,688 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-21 01:56:35,688 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [4, 4] total 17 [2021-11-21 01:56:35,688 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932147141] [2021-11-21 01:56:35,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:56:35,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-21 01:56:35,689 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:56:35,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-21 01:56:35,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=172, Unknown=0, NotChecked=0, Total=272 [2021-11-21 01:56:35,690 INFO L87 Difference]: Start difference. First operand 91 states and 119 transitions. Second operand has 13 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:56:37,952 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:56:39,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:56:39,784 INFO L93 Difference]: Finished difference Result 175 states and 234 transitions. [2021-11-21 01:56:39,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-21 01:56:39,791 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2021-11-21 01:56:39,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:56:39,793 INFO L225 Difference]: With dead ends: 175 [2021-11-21 01:56:39,793 INFO L226 Difference]: Without dead ends: 96 [2021-11-21 01:56:39,794 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=100, Invalid=172, Unknown=0, NotChecked=0, Total=272 [2021-11-21 01:56:39,795 INFO L933 BasicCegarLoop]: 92 mSDtfsCounter, 8 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 53 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:56:39,795 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 326 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 104 Invalid, 1 Unknown, 53 Unchecked, 4.1s Time] [2021-11-21 01:56:39,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2021-11-21 01:56:39,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2021-11-21 01:56:39,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 79 states have (on average 1.2278481012658229) internal successors, (97), 89 states have internal predecessors, (97), 14 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 14 states have call successors, (14) [2021-11-21 01:56:39,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 125 transitions. [2021-11-21 01:56:39,811 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 125 transitions. Word has length 44 [2021-11-21 01:56:39,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:56:39,811 INFO L470 AbstractCegarLoop]: Abstraction has 96 states and 125 transitions. [2021-11-21 01:56:39,812 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:56:39,812 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 125 transitions. [2021-11-21 01:56:39,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-21 01:56:39,814 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:56:39,814 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:56:39,852 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a86b4990-4fe2-4496-82c7-3342f4a0d319/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-21 01:56:40,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a86b4990-4fe2-4496-82c7-3342f4a0d319/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:56:40,040 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:56:40,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:56:40,040 INFO L85 PathProgramCache]: Analyzing trace with hash -336880136, now seen corresponding path program 1 times [2021-11-21 01:56:40,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:56:40,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250779659] [2021-11-21 01:56:40,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:56:40,040 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:56:40,053 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:56:40,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1036289327] [2021-11-21 01:56:40,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:56:40,060 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:56:40,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a86b4990-4fe2-4496-82c7-3342f4a0d319/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:56:40,061 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a86b4990-4fe2-4496-82c7-3342f4a0d319/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:56:40,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a86b4990-4fe2-4496-82c7-3342f4a0d319/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-21 01:56:40,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:56:40,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 01:56:40,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:56:40,384 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-21 01:56:40,384 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:56:40,509 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-21 01:56:40,510 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:56:40,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250779659] [2021-11-21 01:56:40,510 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:56:40,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1036289327] [2021-11-21 01:56:40,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1036289327] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:56:40,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2048437907] [2021-11-21 01:56:40,517 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2021-11-21 01:56:40,517 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:56:40,518 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:56:40,518 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:56:40,518 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:56:40,629 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-21 01:56:40,629 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2021-11-21 01:56:40,656 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:56:40,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:40,702 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-21 01:56:40,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:40,718 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:56:40,721 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 33 treesize of output 39 [2021-11-21 01:56:40,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:40,753 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-21 01:56:41,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:41,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:41,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:41,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:41,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:41,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:41,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:41,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:41,695 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 67 [2021-11-21 01:56:41,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:41,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:41,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:41,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:41,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:41,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:41,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:41,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:41,712 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 55 treesize of output 66 [2021-11-21 01:56:41,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:41,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:41,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:41,786 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 01:56:41,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:41,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:41,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:41,811 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 01:56:41,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:41,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:41,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:41,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:41,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:41,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:41,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:41,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:41,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:41,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:41,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:41,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:41,880 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 88 [2021-11-21 01:56:41,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:41,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:41,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:41,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:41,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:41,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:41,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:41,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:41,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:41,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:41,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:41,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:41,905 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 69 [2021-11-21 01:56:41,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:41,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:41,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:41,972 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-21 01:56:42,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:42,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:42,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:42,020 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-21 01:56:42,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:42,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:42,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:42,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:42,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:42,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:42,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:42,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:42,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:42,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:42,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:42,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:42,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:42,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:42,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:42,108 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 01:56:42,109 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 70 treesize of output 69 [2021-11-21 01:56:42,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:42,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:42,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:42,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:42,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:42,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:42,162 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 105 [2021-11-21 01:56:42,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:42,256 INFO L354 Elim1Store]: treesize reduction 146, result has 25.9 percent of original size [2021-11-21 01:56:42,256 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 117 treesize of output 150 [2021-11-21 01:56:42,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:42,307 INFO L354 Elim1Store]: treesize reduction 86, result has 15.7 percent of original size [2021-11-21 01:56:42,307 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 135 treesize of output 143 [2021-11-21 01:56:42,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:42,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:42,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:42,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:42,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:42,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:42,405 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-21 01:56:42,790 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 14 treesize of output 10 [2021-11-21 01:56:42,799 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 14 treesize of output 10 [2021-11-21 01:56:42,807 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 16 treesize of output 12 [2021-11-21 01:56:42,852 INFO L354 Elim1Store]: treesize reduction 34, result has 22.7 percent of original size [2021-11-21 01:56:42,852 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 98 treesize of output 97 [2021-11-21 01:56:42,876 INFO L354 Elim1Store]: treesize reduction 32, result has 23.8 percent of original size [2021-11-21 01:56:42,877 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 93 [2021-11-21 01:56:42,897 INFO L354 Elim1Store]: treesize reduction 32, result has 23.8 percent of original size [2021-11-21 01:56:42,897 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 89 [2021-11-21 01:56:42,947 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 16 treesize of output 12 [2021-11-21 01:56:42,955 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 14 treesize of output 10 [2021-11-21 01:56:42,969 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 14 treesize of output 10 [2021-11-21 01:56:43,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:43,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:43,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:43,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:43,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:43,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:43,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:43,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:43,040 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 21 [2021-11-21 01:56:43,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:43,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:43,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:43,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:43,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:43,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:43,061 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 26 [2021-11-21 01:56:43,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:43,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:43,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:43,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:43,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:43,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:43,164 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2021-11-21 01:56:43,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:43,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:43,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:43,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:43,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:43,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:43,397 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 26 [2021-11-21 01:56:43,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:43,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:43,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:43,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:43,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:43,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:43,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:43,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:43,466 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 21 [2021-11-21 01:56:43,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:43,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:43,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:43,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:43,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:43,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:43,508 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2021-11-21 01:56:50,792 WARN L227 SmtUtils]: Spent 7.13s on a formula simplification. DAG size of input: 66 DAG size of output: 32 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-21 01:56:50,793 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-21 01:56:50,793 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 2837 treesize of output 2314 [2021-11-21 01:56:50,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:59,925 WARN L227 SmtUtils]: Spent 9.09s on a formula simplification. DAG size of input: 90 DAG size of output: 46 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-21 01:56:59,925 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-21 01:56:59,926 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 2938 treesize of output 2656 [2021-11-21 01:57:10,838 WARN L227 SmtUtils]: Spent 10.81s on a formula simplification. DAG size of input: 251 DAG size of output: 142 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-21 01:57:10,840 INFO L354 Elim1Store]: treesize reduction 2750, result has 29.6 percent of original size [2021-11-21 01:57:10,840 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 2906 treesize of output 2676 [2021-11-21 01:57:12,491 INFO L354 Elim1Store]: treesize reduction 150, result has 21.9 percent of original size [2021-11-21 01:57:12,492 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 17 case distinctions, treesize of input 25944 treesize of output 25972 [2021-11-21 01:57:13,242 INFO L354 Elim1Store]: treesize reduction 96, result has 17.9 percent of original size [2021-11-21 01:57:13,243 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 25954 treesize of output 25965 [2021-11-21 01:57:15,069 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:57:15,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:57:15,435 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-21 01:57:15,435 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 32 [2021-11-21 01:57:15,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:57:16,155 INFO L354 Elim1Store]: treesize reduction 15, result has 48.3 percent of original size [2021-11-21 01:57:16,155 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 46