./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d624e13-0a4a-4a57-8249-3835ac42651b/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d624e13-0a4a-4a57-8249-3835ac42651b/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d624e13-0a4a-4a57-8249-3835ac42651b/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d624e13-0a4a-4a57-8249-3835ac42651b/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d624e13-0a4a-4a57-8249-3835ac42651b/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d624e13-0a4a-4a57-8249-3835ac42651b/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fe37ed55d149c65fede95413b0b499314c3ede2b9eb9a49f03115ea64cafc68c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-26 01:02:45,085 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 01:02:45,087 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 01:02:45,107 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 01:02:45,108 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 01:02:45,109 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 01:02:45,110 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 01:02:45,112 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 01:02:45,114 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 01:02:45,115 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 01:02:45,116 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 01:02:45,118 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 01:02:45,118 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 01:02:45,119 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 01:02:45,121 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 01:02:45,122 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 01:02:45,123 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 01:02:45,124 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 01:02:45,126 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 01:02:45,128 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 01:02:45,129 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 01:02:45,131 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 01:02:45,132 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 01:02:45,133 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 01:02:45,137 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 01:02:45,137 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 01:02:45,137 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 01:02:45,138 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 01:02:45,139 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 01:02:45,140 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 01:02:45,140 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 01:02:45,141 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 01:02:45,142 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 01:02:45,143 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 01:02:45,144 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 01:02:45,145 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 01:02:45,145 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 01:02:45,146 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 01:02:45,146 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 01:02:45,147 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 01:02:45,148 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 01:02:45,155 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d624e13-0a4a-4a57-8249-3835ac42651b/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-26 01:02:45,192 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 01:02:45,193 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 01:02:45,194 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 01:02:45,194 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 01:02:45,195 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 01:02:45,196 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 01:02:45,196 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 01:02:45,196 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 01:02:45,197 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 01:02:45,197 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 01:02:45,198 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 01:02:45,198 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 01:02:45,199 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 01:02:45,199 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 01:02:45,199 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 01:02:45,199 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 01:02:45,200 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 01:02:45,200 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 01:02:45,201 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 01:02:45,201 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 01:02:45,201 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 01:02:45,202 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 01:02:45,202 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 01:02:45,202 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 01:02:45,202 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 01:02:45,203 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 01:02:45,203 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 01:02:45,203 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 01:02:45,203 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 01:02:45,203 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 01:02:45,204 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 01:02:45,204 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 01:02:45,204 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 01:02:45,205 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 01:02:45,205 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 01:02:45,205 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 01:02:45,206 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 01:02:45,206 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 01:02:45,206 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 01:02:45,206 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 01:02:45,207 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 01:02:45,208 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d624e13-0a4a-4a57-8249-3835ac42651b/bin/utaipan-ByfvJB40ur/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d624e13-0a4a-4a57-8249-3835ac42651b/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe37ed55d149c65fede95413b0b499314c3ede2b9eb9a49f03115ea64cafc68c [2022-11-26 01:02:45,532 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 01:02:45,569 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 01:02:45,572 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 01:02:45,574 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 01:02:45,575 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 01:02:45,576 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d624e13-0a4a-4a57-8249-3835ac42651b/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-2.i [2022-11-26 01:02:48,834 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 01:02:49,154 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 01:02:49,155 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d624e13-0a4a-4a57-8249-3835ac42651b/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-2.i [2022-11-26 01:02:49,189 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d624e13-0a4a-4a57-8249-3835ac42651b/bin/utaipan-ByfvJB40ur/data/615653de0/f4e15e42c3fd419bb04c3e28c35b97f8/FLAG66525d446 [2022-11-26 01:02:49,215 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d624e13-0a4a-4a57-8249-3835ac42651b/bin/utaipan-ByfvJB40ur/data/615653de0/f4e15e42c3fd419bb04c3e28c35b97f8 [2022-11-26 01:02:49,222 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 01:02:49,225 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 01:02:49,233 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 01:02:49,234 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 01:02:49,239 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 01:02:49,240 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 01:02:49" (1/1) ... [2022-11-26 01:02:49,242 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@422192eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:02:49, skipping insertion in model container [2022-11-26 01:02:49,243 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 01:02:49" (1/1) ... [2022-11-26 01:02:49,254 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 01:02:49,342 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 01:02:49,938 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d624e13-0a4a-4a57-8249-3835ac42651b/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-2.i[33021,33034] [2022-11-26 01:02:50,121 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-26 01:02:50,141 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d624e13-0a4a-4a57-8249-3835ac42651b/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-2.i[45234,45247] [2022-11-26 01:02:50,166 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 01:02:50,180 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 01:02:50,226 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d624e13-0a4a-4a57-8249-3835ac42651b/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-2.i[33021,33034] [2022-11-26 01:02:50,325 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-26 01:02:50,341 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d624e13-0a4a-4a57-8249-3835ac42651b/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-2.i[45234,45247] [2022-11-26 01:02:50,371 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 01:02:50,410 INFO L208 MainTranslator]: Completed translation [2022-11-26 01:02:50,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:02:50 WrapperNode [2022-11-26 01:02:50,411 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 01:02:50,412 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 01:02:50,412 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 01:02:50,413 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 01:02:50,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:02:50" (1/1) ... [2022-11-26 01:02:50,460 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:02:50" (1/1) ... [2022-11-26 01:02:50,559 INFO L138 Inliner]: procedures = 177, calls = 348, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1147 [2022-11-26 01:02:50,559 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 01:02:50,560 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 01:02:50,560 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 01:02:50,560 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 01:02:50,572 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:02:50" (1/1) ... [2022-11-26 01:02:50,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:02:50" (1/1) ... [2022-11-26 01:02:50,597 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:02:50" (1/1) ... [2022-11-26 01:02:50,597 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:02:50" (1/1) ... [2022-11-26 01:02:50,682 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:02:50" (1/1) ... [2022-11-26 01:02:50,714 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:02:50" (1/1) ... [2022-11-26 01:02:50,719 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:02:50" (1/1) ... [2022-11-26 01:02:50,724 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:02:50" (1/1) ... [2022-11-26 01:02:50,735 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 01:02:50,736 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 01:02:50,736 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 01:02:50,736 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 01:02:50,737 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:02:50" (1/1) ... [2022-11-26 01:02:50,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 01:02:50,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d624e13-0a4a-4a57-8249-3835ac42651b/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 01:02:50,784 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d624e13-0a4a-4a57-8249-3835ac42651b/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 01:02:50,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d624e13-0a4a-4a57-8249-3835ac42651b/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 01:02:50,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 01:02:50,840 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-26 01:02:50,840 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-26 01:02:50,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 01:02:50,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-26 01:02:50,841 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-26 01:02:50,841 INFO L130 BoogieDeclarations]: Found specification of procedure test_int [2022-11-26 01:02:50,841 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int [2022-11-26 01:02:50,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-26 01:02:50,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 01:02:50,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-26 01:02:50,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 01:02:50,844 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-26 01:02:50,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-26 01:02:50,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 01:02:50,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 01:02:50,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 01:02:50,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 01:02:51,195 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 01:02:51,198 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 01:02:53,433 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 01:02:53,952 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 01:02:53,952 INFO L300 CfgBuilder]: Removed 71 assume(true) statements. [2022-11-26 01:02:53,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:02:53 BoogieIcfgContainer [2022-11-26 01:02:53,956 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 01:02:53,959 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 01:02:53,960 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 01:02:53,963 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 01:02:53,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 01:02:49" (1/3) ... [2022-11-26 01:02:53,966 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5966d8d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 01:02:53, skipping insertion in model container [2022-11-26 01:02:53,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:02:50" (2/3) ... [2022-11-26 01:02:53,968 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5966d8d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 01:02:53, skipping insertion in model container [2022-11-26 01:02:53,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:02:53" (3/3) ... [2022-11-26 01:02:53,970 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_test8-2.i [2022-11-26 01:02:53,994 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 01:02:53,994 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-26 01:02:54,058 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 01:02:54,066 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5fdb2925, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 01:02:54,066 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-26 01:02:54,072 INFO L276 IsEmpty]: Start isEmpty. Operand has 162 states, 136 states have (on average 1.7941176470588236) internal successors, (244), 153 states have internal predecessors, (244), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-26 01:02:54,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-26 01:02:54,082 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:02:54,083 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:02:54,083 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 01:02:54,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:02:54,090 INFO L85 PathProgramCache]: Analyzing trace with hash 1439031123, now seen corresponding path program 1 times [2022-11-26 01:02:54,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:02:54,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668473094] [2022-11-26 01:02:54,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:02:54,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:02:54,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:02:54,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 01:02:54,359 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:02:54,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668473094] [2022-11-26 01:02:54,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668473094] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:02:54,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:02:54,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 01:02:54,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532651939] [2022-11-26 01:02:54,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:02:54,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-26 01:02:54,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:02:54,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-26 01:02:54,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 01:02:54,436 INFO L87 Difference]: Start difference. First operand has 162 states, 136 states have (on average 1.7941176470588236) internal successors, (244), 153 states have internal predecessors, (244), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:02:55,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:02:55,733 INFO L93 Difference]: Finished difference Result 323 states and 584 transitions. [2022-11-26 01:02:55,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-26 01:02:55,736 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-26 01:02:55,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:02:55,747 INFO L225 Difference]: With dead ends: 323 [2022-11-26 01:02:55,747 INFO L226 Difference]: Without dead ends: 146 [2022-11-26 01:02:55,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 01:02:55,756 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-26 01:02:55,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 189 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-26 01:02:55,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2022-11-26 01:02:55,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2022-11-26 01:02:55,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 121 states have (on average 1.2727272727272727) internal successors, (154), 137 states have internal predecessors, (154), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-26 01:02:55,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 194 transitions. [2022-11-26 01:02:55,856 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 194 transitions. Word has length 8 [2022-11-26 01:02:55,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:02:55,857 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 194 transitions. [2022-11-26 01:02:55,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:02:55,857 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 194 transitions. [2022-11-26 01:02:55,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-26 01:02:55,860 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:02:55,860 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:02:55,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 01:02:55,861 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 01:02:55,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:02:55,862 INFO L85 PathProgramCache]: Analyzing trace with hash 607279358, now seen corresponding path program 1 times [2022-11-26 01:02:55,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:02:55,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454405330] [2022-11-26 01:02:55,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:02:55,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:02:55,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:02:56,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 01:02:56,380 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:02:56,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454405330] [2022-11-26 01:02:56,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454405330] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:02:56,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:02:56,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 01:02:56,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727078282] [2022-11-26 01:02:56,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:02:56,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 01:02:56,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:02:56,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 01:02:56,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 01:02:56,389 INFO L87 Difference]: Start difference. First operand 146 states and 194 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:02:57,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:02:57,727 INFO L93 Difference]: Finished difference Result 293 states and 390 transitions. [2022-11-26 01:02:57,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 01:02:57,734 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-26 01:02:57,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:02:57,737 INFO L225 Difference]: With dead ends: 293 [2022-11-26 01:02:57,737 INFO L226 Difference]: Without dead ends: 202 [2022-11-26 01:02:57,738 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 01:02:57,739 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 60 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-26 01:02:57,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 480 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-26 01:02:57,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2022-11-26 01:02:57,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 148. [2022-11-26 01:02:57,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 123 states have (on average 1.2682926829268293) internal successors, (156), 139 states have internal predecessors, (156), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-26 01:02:57,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 196 transitions. [2022-11-26 01:02:57,768 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 196 transitions. Word has length 20 [2022-11-26 01:02:57,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:02:57,768 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 196 transitions. [2022-11-26 01:02:57,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:02:57,769 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 196 transitions. [2022-11-26 01:02:57,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-26 01:02:57,770 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:02:57,770 INFO L195 NwaCegarLoop]: 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, 1] [2022-11-26 01:02:57,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 01:02:57,771 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 01:02:57,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:02:57,771 INFO L85 PathProgramCache]: Analyzing trace with hash 308617378, now seen corresponding path program 1 times [2022-11-26 01:02:57,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:02:57,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633471167] [2022-11-26 01:02:57,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:02:57,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:02:58,003 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 01:02:58,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1235274898] [2022-11-26 01:02:58,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:02:58,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 01:02:58,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d624e13-0a4a-4a57-8249-3835ac42651b/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 01:02:58,009 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d624e13-0a4a-4a57-8249-3835ac42651b/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 01:02:58,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d624e13-0a4a-4a57-8249-3835ac42651b/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-26 01:02:58,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:02:58,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 1597 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-26 01:02:58,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 01:02:59,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 01:02:59,028 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 01:02:59,029 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:02:59,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633471167] [2022-11-26 01:02:59,029 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 01:02:59,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1235274898] [2022-11-26 01:02:59,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1235274898] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:02:59,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:02:59,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 01:02:59,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20633181] [2022-11-26 01:02:59,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:02:59,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 01:02:59,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:02:59,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 01:02:59,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 01:02:59,034 INFO L87 Difference]: Start difference. First operand 148 states and 196 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:03:00,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:03:00,581 INFO L93 Difference]: Finished difference Result 341 states and 444 transitions. [2022-11-26 01:03:00,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 01:03:00,582 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-26 01:03:00,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:03:00,585 INFO L225 Difference]: With dead ends: 341 [2022-11-26 01:03:00,585 INFO L226 Difference]: Without dead ends: 196 [2022-11-26 01:03:00,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 01:03:00,588 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 45 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-26 01:03:00,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 341 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-26 01:03:00,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2022-11-26 01:03:00,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 193. [2022-11-26 01:03:00,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 167 states have (on average 1.2275449101796407) internal successors, (205), 183 states have internal predecessors, (205), 21 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (21), 7 states have call predecessors, (21), 21 states have call successors, (21) [2022-11-26 01:03:00,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 247 transitions. [2022-11-26 01:03:00,619 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 247 transitions. Word has length 32 [2022-11-26 01:03:00,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:03:00,620 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 247 transitions. [2022-11-26 01:03:00,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:03:00,621 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 247 transitions. [2022-11-26 01:03:00,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-26 01:03:00,622 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:03:00,623 INFO L195 NwaCegarLoop]: 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] [2022-11-26 01:03:00,634 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d624e13-0a4a-4a57-8249-3835ac42651b/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-26 01:03:00,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d624e13-0a4a-4a57-8249-3835ac42651b/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 01:03:00,824 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 01:03:00,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:03:00,825 INFO L85 PathProgramCache]: Analyzing trace with hash 922198994, now seen corresponding path program 1 times [2022-11-26 01:03:00,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:03:00,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654273284] [2022-11-26 01:03:00,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:03:00,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:03:00,918 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 01:03:00,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1196526973] [2022-11-26 01:03:00,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:03:00,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 01:03:00,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d624e13-0a4a-4a57-8249-3835ac42651b/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 01:03:00,921 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d624e13-0a4a-4a57-8249-3835ac42651b/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 01:03:00,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d624e13-0a4a-4a57-8249-3835ac42651b/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-26 01:03:46,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:03:46,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 734 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-26 01:03:46,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 01:03:46,740 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-26 01:03:46,741 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 01:03:46,741 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:03:46,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654273284] [2022-11-26 01:03:46,742 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 01:03:46,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1196526973] [2022-11-26 01:03:46,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1196526973] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:03:46,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:03:46,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 01:03:46,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878511395] [2022-11-26 01:03:46,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:03:46,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 01:03:46,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:03:46,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 01:03:46,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 01:03:46,746 INFO L87 Difference]: Start difference. First operand 193 states and 247 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-26 01:03:49,039 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-26 01:03:49,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:03:49,166 INFO L93 Difference]: Finished difference Result 372 states and 482 transitions. [2022-11-26 01:03:49,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 01:03:49,171 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 45 [2022-11-26 01:03:49,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:03:49,173 INFO L225 Difference]: With dead ends: 372 [2022-11-26 01:03:49,173 INFO L226 Difference]: Without dead ends: 195 [2022-11-26 01:03:49,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 01:03:49,175 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 1 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-26 01:03:49,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 521 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-26 01:03:49,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2022-11-26 01:03:49,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2022-11-26 01:03:49,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 168 states have (on average 1.2321428571428572) internal successors, (207), 185 states have internal predecessors, (207), 21 states have call successors, (21), 3 states have call predecessors, (21), 4 states have return successors, (22), 7 states have call predecessors, (22), 21 states have call successors, (22) [2022-11-26 01:03:49,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 250 transitions. [2022-11-26 01:03:49,195 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 250 transitions. Word has length 45 [2022-11-26 01:03:49,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:03:49,196 INFO L495 AbstractCegarLoop]: Abstraction has 195 states and 250 transitions. [2022-11-26 01:03:49,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-26 01:03:49,197 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 250 transitions. [2022-11-26 01:03:49,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-26 01:03:49,198 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:03:49,199 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:03:49,236 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d624e13-0a4a-4a57-8249-3835ac42651b/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-26 01:03:49,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d624e13-0a4a-4a57-8249-3835ac42651b/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 01:03:49,412 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 01:03:49,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:03:49,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1894472968, now seen corresponding path program 1 times [2022-11-26 01:03:49,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:03:49,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716804210] [2022-11-26 01:03:49,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:03:49,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:03:49,506 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 01:03:49,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [61779823] [2022-11-26 01:03:49,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:03:49,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 01:03:49,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d624e13-0a4a-4a57-8249-3835ac42651b/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 01:03:49,511 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d624e13-0a4a-4a57-8249-3835ac42651b/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 01:03:49,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d624e13-0a4a-4a57-8249-3835ac42651b/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-26 01:04:08,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:04:08,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 764 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-26 01:04:08,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 01:04:08,893 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-26 01:04:08,894 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 01:04:09,036 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-26 01:04:09,037 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:04:09,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716804210] [2022-11-26 01:04:09,037 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 01:04:09,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [61779823] [2022-11-26 01:04:09,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [61779823] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 01:04:09,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1297742446] [2022-11-26 01:04:09,066 INFO L159 IcfgInterpreter]: Started Sifa with 43 locations of interest [2022-11-26 01:04:09,067 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 01:04:09,072 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 01:04:09,079 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 01:04:09,079 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 01:04:09,273 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-26 01:04:09,281 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-26 01:04:09,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:09,314 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 01:04:09,315 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-26 01:04:09,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:09,334 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-26 01:04:09,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:09,349 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-26 01:04:09,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:09,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:09,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:09,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:09,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:09,430 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-26 01:04:09,431 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 53 [2022-11-26 01:04:09,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:09,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:09,499 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-26 01:04:09,499 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 22 treesize of output 38 [2022-11-26 01:04:09,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:09,535 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-26 01:04:09,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:09,556 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-26 01:04:09,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:09,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:09,612 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-26 01:04:09,618 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-26 01:04:10,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,296 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 29 disjoint index pairs (out of 36 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9897009 treesize of output 5376288 [2022-11-26 01:04:10,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,374 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 29 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 8458577 treesize of output 4759834 [2022-11-26 01:04:10,422 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-26 01:04:10,443 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-26 01:04:10,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,588 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-11-26 01:04:10,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,681 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-11-26 01:04:10,728 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-26 01:04:10,745 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-26 01:04:10,835 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 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 [2022-11-26 01:04:10,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,938 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-26 01:04:10,939 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 case distinctions, treesize of input 49 treesize of output 85 [2022-11-26 01:04:10,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:10,973 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 44 [2022-11-26 01:04:11,009 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 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 [2022-11-26 01:04:11,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:11,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:11,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:11,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:11,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:11,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:11,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:11,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:11,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:11,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:11,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:11,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:11,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:11,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:11,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:11,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:11,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:11,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:11,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:11,084 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-11-26 01:04:11,395 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-26 01:04:11,401 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-26 01:04:11,408 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-26 01:04:11,470 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-26 01:04:11,471 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 54 [2022-11-26 01:04:11,514 INFO L321 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2022-11-26 01:04:11,515 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 52 [2022-11-26 01:04:11,552 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-26 01:04:11,552 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 46 [2022-11-26 01:04:11,602 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-26 01:04:11,609 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-26 01:04:11,616 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-26 01:04:11,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:11,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:11,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:11,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:11,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:11,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:11,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:11,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:11,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:11,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:11,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:11,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:11,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:11,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:11,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:11,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:11,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:11,749 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 29 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458573 treesize of output 4759755 [2022-11-26 01:04:11,784 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-11-26 01:04:11,809 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-11-26 01:04:12,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:12,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:12,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:12,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:12,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:12,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:12,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:12,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:12,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:12,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:12,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:12,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:12,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:12,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:12,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:12,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:12,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:04:12,120 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 29 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458573 treesize of output 4759755 [2022-11-26 01:04:12,149 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-11-26 01:04:12,169 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-11-26 01:04:13,961 INFO L217 Elim1Store]: Index analysis took 1456 ms [2022-11-26 01:04:18,640 INFO L321 Elim1Store]: treesize reduction 190, result has 18.1 percent of original size [2022-11-26 01:04:18,641 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 22 case distinctions, treesize of input 9519777 treesize of output 9519796 [2022-11-26 01:04:19,656 INFO L217 Elim1Store]: Index analysis took 829 ms [2022-11-26 01:04:20,397 INFO L321 Elim1Store]: treesize reduction 87, result has 5.4 percent of original size [2022-11-26 01:04:20,398 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 9519772 treesize of output 9519776 [2022-11-26 01:07:39,276 WARN L233 SmtUtils]: Spent 3.31m on a formula simplification. DAG size of input: 175 DAG size of output: 92 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-26 01:07:39,277 INFO L321 Elim1Store]: treesize reduction 1193, result has 25.3 percent of original size [2022-11-26 01:07:39,278 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 9 new quantified variables, introduced 13 case distinctions, treesize of input 9890 treesize of output 6802 [2022-11-26 01:08:00,150 WARN L233 SmtUtils]: Spent 20.56s on a formula simplification. DAG size of input: 80 DAG size of output: 13 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-26 01:08:00,151 INFO L321 Elim1Store]: treesize reduction 252, result has 6.7 percent of original size [2022-11-26 01:08:00,152 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 11 case distinctions, treesize of input 10021 treesize of output 9263 [2022-11-26 01:08:00,604 INFO L217 Elim1Store]: Index analysis took 130 ms [2022-11-26 01:09:22,191 WARN L233 SmtUtils]: Spent 1.36m on a formula simplification. DAG size of input: 91 DAG size of output: 46 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-26 01:09:22,192 INFO L321 Elim1Store]: treesize reduction 338, result has 31.4 percent of original size [2022-11-26 01:09:22,193 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 10438 treesize of output 9115 [2022-11-26 01:09:27,776 INFO L217 Elim1Store]: Index analysis took 3510 ms [2022-11-26 01:13:52,279 WARN L233 SmtUtils]: Spent 4.39m on a formula simplification. DAG size of input: 408 DAG size of output: 225 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-26 01:13:52,281 INFO L321 Elim1Store]: treesize reduction 11269, result has 26.7 percent of original size [2022-11-26 01:13:52,282 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 8 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 8 new quantified variables, introduced 32 case distinctions, treesize of input 9192 treesize of output 12130