./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test5-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d367d205-a542-4b00-9b90-717be46cc1c8/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d367d205-a542-4b00-9b90-717be46cc1c8/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d367d205-a542-4b00-9b90-717be46cc1c8/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d367d205-a542-4b00-9b90-717be46cc1c8/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test5-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d367d205-a542-4b00-9b90-717be46cc1c8/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d367d205-a542-4b00-9b90-717be46cc1c8/bin/utaipan-gh47qXpMRh --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 713ae5dee39d08db1e818ebc31454a222c136fde7aad4a26405d3060cfa0eeea --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 05:45:49,081 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 05:45:49,083 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 05:45:49,101 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 05:45:49,102 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 05:45:49,103 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 05:45:49,104 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 05:45:49,105 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 05:45:49,107 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 05:45:49,108 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 05:45:49,109 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 05:45:49,110 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 05:45:49,110 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 05:45:49,111 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 05:45:49,112 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 05:45:49,113 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 05:45:49,114 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 05:45:49,114 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 05:45:49,116 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 05:45:49,118 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 05:45:49,119 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 05:45:49,120 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 05:45:49,121 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 05:45:49,122 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 05:45:49,125 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 05:45:49,126 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 05:45:49,126 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 05:45:49,127 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 05:45:49,127 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 05:45:49,129 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 05:45:49,129 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 05:45:49,130 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 05:45:49,130 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 05:45:49,131 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 05:45:49,132 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 05:45:49,132 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 05:45:49,133 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 05:45:49,133 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 05:45:49,133 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 05:45:49,134 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 05:45:49,134 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 05:45:49,135 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d367d205-a542-4b00-9b90-717be46cc1c8/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 05:45:49,155 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 05:45:49,155 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 05:45:49,156 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 05:45:49,156 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 05:45:49,156 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 05:45:49,157 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 05:45:49,157 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 05:45:49,157 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 05:45:49,157 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 05:45:49,157 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 05:45:49,157 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 05:45:49,158 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 05:45:49,158 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 05:45:49,158 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 05:45:49,158 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 05:45:49,158 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 05:45:49,158 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 05:45:49,159 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 05:45:49,159 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 05:45:49,159 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 05:45:49,160 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 05:45:49,160 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 05:45:49,160 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 05:45:49,160 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 05:45:49,160 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 05:45:49,160 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 05:45:49,160 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 05:45:49,160 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 05:45:49,161 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 05:45:49,161 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 05:45:49,161 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 05:45:49,161 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 05:45:49,161 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:45:49,161 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 05:45:49,162 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 05:45:49,162 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 05:45:49,162 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 05:45:49,162 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 05:45:49,162 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 05:45:49,162 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 05:45:49,162 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 05:45:49,163 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_d367d205-a542-4b00-9b90-717be46cc1c8/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d367d205-a542-4b00-9b90-717be46cc1c8/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 713ae5dee39d08db1e818ebc31454a222c136fde7aad4a26405d3060cfa0eeea [2022-12-14 05:45:49,331 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 05:45:49,347 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 05:45:49,350 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 05:45:49,351 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 05:45:49,352 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 05:45:49,353 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d367d205-a542-4b00-9b90-717be46cc1c8/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test5-3.i [2022-12-14 05:45:51,922 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 05:45:52,160 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 05:45:52,161 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d367d205-a542-4b00-9b90-717be46cc1c8/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test5-3.i [2022-12-14 05:45:52,174 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d367d205-a542-4b00-9b90-717be46cc1c8/bin/utaipan-gh47qXpMRh/data/56671b376/dfe1fff1e30d4459bcfa7a5f8a980e80/FLAGd4ec83255 [2022-12-14 05:45:52,186 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d367d205-a542-4b00-9b90-717be46cc1c8/bin/utaipan-gh47qXpMRh/data/56671b376/dfe1fff1e30d4459bcfa7a5f8a980e80 [2022-12-14 05:45:52,188 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 05:45:52,190 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 05:45:52,191 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 05:45:52,191 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 05:45:52,194 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 05:45:52,194 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:45:52" (1/1) ... [2022-12-14 05:45:52,195 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63fccfe2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:45:52, skipping insertion in model container [2022-12-14 05:45:52,195 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:45:52" (1/1) ... [2022-12-14 05:45:52,201 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 05:45:52,252 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 05:45:52,604 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_d367d205-a542-4b00-9b90-717be46cc1c8/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test5-3.i[33021,33034] [2022-12-14 05:45:52,722 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 05:45:52,725 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_d367d205-a542-4b00-9b90-717be46cc1c8/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test5-3.i[49681,49694] [2022-12-14 05:45:52,744 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:45:52,753 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 05:45:52,778 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_d367d205-a542-4b00-9b90-717be46cc1c8/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test5-3.i[33021,33034] [2022-12-14 05:45:52,848 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 05:45:52,850 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_d367d205-a542-4b00-9b90-717be46cc1c8/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test5-3.i[49681,49694] [2022-12-14 05:45:52,865 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:45:52,921 INFO L208 MainTranslator]: Completed translation [2022-12-14 05:45:52,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:45:52 WrapperNode [2022-12-14 05:45:52,922 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 05:45:52,923 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 05:45:52,923 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 05:45:52,923 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 05:45:52,929 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:45:52" (1/1) ... [2022-12-14 05:45:52,963 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:45:52" (1/1) ... [2022-12-14 05:45:53,031 INFO L138 Inliner]: procedures = 177, calls = 487, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1686 [2022-12-14 05:45:53,032 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 05:45:53,032 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 05:45:53,032 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 05:45:53,033 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 05:45:53,040 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:45:52" (1/1) ... [2022-12-14 05:45:53,041 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:45:52" (1/1) ... [2022-12-14 05:45:53,054 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:45:52" (1/1) ... [2022-12-14 05:45:53,054 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:45:52" (1/1) ... [2022-12-14 05:45:53,115 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:45:52" (1/1) ... [2022-12-14 05:45:53,129 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:45:52" (1/1) ... [2022-12-14 05:45:53,134 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:45:52" (1/1) ... [2022-12-14 05:45:53,140 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:45:52" (1/1) ... [2022-12-14 05:45:53,151 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 05:45:53,151 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 05:45:53,152 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 05:45:53,152 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 05:45:53,152 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:45:52" (1/1) ... [2022-12-14 05:45:53,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:45:53,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d367d205-a542-4b00-9b90-717be46cc1c8/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:45:53,179 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d367d205-a542-4b00-9b90-717be46cc1c8/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 05:45:53,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d367d205-a542-4b00-9b90-717be46cc1c8/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 05:45:53,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 05:45:53,212 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 05:45:53,212 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 05:45:53,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 05:45:53,212 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-14 05:45:53,212 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-14 05:45:53,212 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 05:45:53,212 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 05:45:53,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 05:45:53,212 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 05:45:53,212 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-12-14 05:45:53,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 05:45:53,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 05:45:53,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 05:45:53,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 05:45:53,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 05:45:53,413 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 05:45:53,415 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 05:45:54,732 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 05:45:55,217 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 05:45:55,218 INFO L300 CfgBuilder]: Removed 100 assume(true) statements. [2022-12-14 05:45:55,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:45:55 BoogieIcfgContainer [2022-12-14 05:45:55,221 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 05:45:55,223 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 05:45:55,223 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 05:45:55,226 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 05:45:55,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 05:45:52" (1/3) ... [2022-12-14 05:45:55,226 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26e64b6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:45:55, skipping insertion in model container [2022-12-14 05:45:55,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:45:52" (2/3) ... [2022-12-14 05:45:55,227 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26e64b6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:45:55, skipping insertion in model container [2022-12-14 05:45:55,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:45:55" (3/3) ... [2022-12-14 05:45:55,228 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test5-3.i [2022-12-14 05:45:55,242 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 05:45:55,242 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 05:45:55,282 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 05:45:55,286 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;@1d2b8871, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 05:45:55,287 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 05:45:55,290 INFO L276 IsEmpty]: Start isEmpty. Operand has 177 states, 161 states have (on average 1.813664596273292) internal successors, (292), 168 states have internal predecessors, (292), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 05:45:55,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 05:45:55,296 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:45:55,296 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 05:45:55,297 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:45:55,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:45:55,301 INFO L85 PathProgramCache]: Analyzing trace with hash 274883441, now seen corresponding path program 1 times [2022-12-14 05:45:55,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:45:55,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054159715] [2022-12-14 05:45:55,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:45:55,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:45:55,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:45:55,412 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:45:55,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054159715] [2022-12-14 05:45:55,412 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-12-14 05:45:55,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1622237223] [2022-12-14 05:45:55,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:45:55,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:45:55,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d367d205-a542-4b00-9b90-717be46cc1c8/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:45:55,414 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d367d205-a542-4b00-9b90-717be46cc1c8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:45:55,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d367d205-a542-4b00-9b90-717be46cc1c8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 05:45:55,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:45:55,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-14 05:45:55,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:45:55,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:45:55,609 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 05:45:55,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1622237223] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:45:55,609 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:45:55,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 05:45:55,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697307153] [2022-12-14 05:45:55,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:45:55,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 05:45:55,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:45:55,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 05:45:55,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 05:45:55,637 INFO L87 Difference]: Start difference. First operand has 177 states, 161 states have (on average 1.813664596273292) internal successors, (292), 168 states have internal predecessors, (292), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:45:56,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:45:56,410 INFO L93 Difference]: Finished difference Result 353 states and 632 transitions. [2022-12-14 05:45:56,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 05:45:56,415 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-12-14 05:45:56,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:45:56,424 INFO L225 Difference]: With dead ends: 353 [2022-12-14 05:45:56,425 INFO L226 Difference]: Without dead ends: 150 [2022-12-14 05:45:56,428 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 05:45:56,431 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-14 05:45:56,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 186 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-14 05:45:56,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-12-14 05:45:56,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2022-12-14 05:45:56,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 135 states have (on average 1.1925925925925926) internal successors, (161), 141 states have internal predecessors, (161), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 05:45:56,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 183 transitions. [2022-12-14 05:45:56,470 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 183 transitions. Word has length 6 [2022-12-14 05:45:56,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:45:56,471 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 183 transitions. [2022-12-14 05:45:56,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:45:56,471 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 183 transitions. [2022-12-14 05:45:56,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 05:45:56,473 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:45:56,473 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:45:56,480 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d367d205-a542-4b00-9b90-717be46cc1c8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 05:45:56,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d367d205-a542-4b00-9b90-717be46cc1c8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:45:56,676 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:45:56,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:45:56,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1671934868, now seen corresponding path program 1 times [2022-12-14 05:45:56,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:45:56,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698574489] [2022-12-14 05:45:56,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:45:56,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:45:56,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:45:56,729 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:45:56,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698574489] [2022-12-14 05:45:56,729 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-12-14 05:45:56,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1117318640] [2022-12-14 05:45:56,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:45:56,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:45:56,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d367d205-a542-4b00-9b90-717be46cc1c8/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:45:56,731 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d367d205-a542-4b00-9b90-717be46cc1c8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:45:56,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d367d205-a542-4b00-9b90-717be46cc1c8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 05:45:56,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:45:56,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 05:45:56,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:45:56,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:45:56,936 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 05:45:56,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1117318640] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:45:56,937 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:45:56,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 05:45:56,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125934094] [2022-12-14 05:45:56,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:45:56,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:45:56,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:45:56,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:45:56,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:45:56,939 INFO L87 Difference]: Start difference. First operand 150 states and 183 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:45:58,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:45:58,606 INFO L93 Difference]: Finished difference Result 342 states and 425 transitions. [2022-12-14 05:45:58,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:45:58,611 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-12-14 05:45:58,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:45:58,612 INFO L225 Difference]: With dead ends: 342 [2022-12-14 05:45:58,612 INFO L226 Difference]: Without dead ends: 290 [2022-12-14 05:45:58,613 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:45:58,614 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 149 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-12-14 05:45:58,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 335 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-12-14 05:45:58,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2022-12-14 05:45:58,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 151. [2022-12-14 05:45:58,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 136 states have (on average 1.1911764705882353) internal successors, (162), 142 states have internal predecessors, (162), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 05:45:58,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 184 transitions. [2022-12-14 05:45:58,624 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 184 transitions. Word has length 17 [2022-12-14 05:45:58,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:45:58,624 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 184 transitions. [2022-12-14 05:45:58,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:45:58,625 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 184 transitions. [2022-12-14 05:45:58,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-12-14 05:45:58,626 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:45:58,626 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:45:58,632 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d367d205-a542-4b00-9b90-717be46cc1c8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 05:45:58,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d367d205-a542-4b00-9b90-717be46cc1c8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:45:58,828 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:45:58,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:45:58,829 INFO L85 PathProgramCache]: Analyzing trace with hash 700872651, now seen corresponding path program 1 times [2022-12-14 05:45:58,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:45:58,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571332826] [2022-12-14 05:45:58,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:45:58,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:45:59,041 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 05:45:59,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [552025676] [2022-12-14 05:45:59,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:45:59,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:45:59,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d367d205-a542-4b00-9b90-717be46cc1c8/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:45:59,043 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d367d205-a542-4b00-9b90-717be46cc1c8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:45:59,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d367d205-a542-4b00-9b90-717be46cc1c8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 05:45:59,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:45:59,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 3112 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 05:45:59,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:46:00,040 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:46:00,040 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:46:00,109 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:46:00,109 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:46:00,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571332826] [2022-12-14 05:46:00,110 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 05:46:00,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [552025676] [2022-12-14 05:46:00,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [552025676] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 05:46:00,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1430686374] [2022-12-14 05:46:00,132 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2022-12-14 05:46:00,132 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 05:46:00,136 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 05:46:00,141 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 05:46:00,142 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 05:46:00,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:00,276 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 05:46:00,276 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 [2022-12-14 05:46:00,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:00,289 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 05:46:00,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:00,329 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 [2022-12-14 05:46:00,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:00,338 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:46:00,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:00,350 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 05:46:00,350 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 1 case distinctions, treesize of input 33 treesize of output 43 [2022-12-14 05:46:00,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:00,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:00,408 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 05:46:00,408 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 [2022-12-14 05:46:00,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:00,427 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 05:46:00,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:00,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:00,438 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-12-14 05:46:00,780 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 [2022-12-14 05:46:00,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:00,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:00,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:00,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:00,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:00,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:00,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:00,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:00,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:00,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:00,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:00,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:00,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:00,823 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-12-14 05:46:00,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:00,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:00,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:00,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:00,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:00,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:00,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:00,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:00,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:00,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:00,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:00,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:00,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:00,865 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-12-14 05:46:00,895 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 [2022-12-14 05:46:01,250 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 [2022-12-14 05:46:01,264 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 [2022-12-14 05:46:01,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:01,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:01,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:01,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:01,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:01,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:01,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:01,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:01,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:01,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:01,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:01,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:01,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:01,304 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-12-14 05:46:01,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:01,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:01,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:01,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:01,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:01,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:01,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:01,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:01,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:01,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:01,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:01,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:01,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:01,350 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-12-14 05:46:01,386 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 05:46:07,601 WARN L233 SmtUtils]: Spent 5.07s on a formula simplification. DAG size of input: 235 DAG size of output: 220 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:46:15,167 WARN L233 SmtUtils]: Spent 5.49s on a formula simplification. DAG size of input: 251 DAG size of output: 236 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:46:15,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1430686374] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:46:15,170 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-14 05:46:15,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 3] total 11 [2022-12-14 05:46:15,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469004579] [2022-12-14 05:46:15,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:46:15,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 05:46:15,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:46:15,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 05:46:15,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=69, Unknown=1, NotChecked=0, Total=132 [2022-12-14 05:46:15,173 INFO L87 Difference]: Start difference. First operand 151 states and 184 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:46:17,378 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 05:46:19,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 05:46:26,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 05:46:26,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:46:26,980 INFO L93 Difference]: Finished difference Result 310 states and 378 transitions. [2022-12-14 05:46:26,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 05:46:26,981 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 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 61 [2022-12-14 05:46:26,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:46:26,982 INFO L225 Difference]: With dead ends: 310 [2022-12-14 05:46:26,982 INFO L226 Difference]: Without dead ends: 161 [2022-12-14 05:46:26,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 13.8s TimeCoverageRelationStatistics Valid=62, Invalid=69, Unknown=1, NotChecked=0, Total=132 [2022-12-14 05:46:26,983 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 0 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2022-12-14 05:46:26,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 602 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 316 Invalid, 2 Unknown, 0 Unchecked, 11.8s Time] [2022-12-14 05:46:26,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2022-12-14 05:46:26,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2022-12-14 05:46:26,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 146 states have (on average 1.178082191780822) internal successors, (172), 152 states have internal predecessors, (172), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 05:46:26,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 194 transitions. [2022-12-14 05:46:26,996 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 194 transitions. Word has length 61 [2022-12-14 05:46:26,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:46:26,997 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 194 transitions. [2022-12-14 05:46:26,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:46:26,997 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 194 transitions. [2022-12-14 05:46:26,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-12-14 05:46:26,998 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:46:26,999 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:46:27,009 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d367d205-a542-4b00-9b90-717be46cc1c8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 05:46:27,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d367d205-a542-4b00-9b90-717be46cc1c8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:46:27,200 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:46:27,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:46:27,201 INFO L85 PathProgramCache]: Analyzing trace with hash -385397690, now seen corresponding path program 1 times [2022-12-14 05:46:27,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:46:27,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143492592] [2022-12-14 05:46:27,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:46:27,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:46:27,332 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 05:46:27,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [88469545] [2022-12-14 05:46:27,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:46:27,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:46:27,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d367d205-a542-4b00-9b90-717be46cc1c8/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:46:27,333 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d367d205-a542-4b00-9b90-717be46cc1c8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:46:27,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d367d205-a542-4b00-9b90-717be46cc1c8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 05:46:28,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:46:28,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 2249 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 05:46:28,042 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:46:28,122 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 05:46:28,122 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:46:28,212 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 05:46:28,213 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:46:28,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143492592] [2022-12-14 05:46:28,213 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 05:46:28,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [88469545] [2022-12-14 05:46:28,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [88469545] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 05:46:28,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2146238415] [2022-12-14 05:46:28,217 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-12-14 05:46:28,218 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 05:46:28,218 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 05:46:28,218 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 05:46:28,218 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 05:46:28,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:28,316 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 05:46:28,317 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 [2022-12-14 05:46:28,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:28,326 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 05:46:28,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:28,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:28,367 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-14 05:46:28,368 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 [2022-12-14 05:46:28,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:28,381 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 [2022-12-14 05:46:28,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:28,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:28,416 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 05:46:28,416 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 [2022-12-14 05:46:28,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:28,428 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:46:28,430 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 39 [2022-12-14 05:46:28,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:28,445 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 05:46:28,704 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 [2022-12-14 05:46:28,716 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 [2022-12-14 05:46:28,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:28,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:28,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:28,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:28,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:28,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:28,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:28,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:28,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:28,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:28,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:28,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:28,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:28,756 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-12-14 05:46:28,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:28,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:28,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:28,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:28,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:28,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:28,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:28,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:28,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:28,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:28,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:28,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:28,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:28,791 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9896988 treesize of output 5376290 [2022-12-14 05:46:28,840 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 [2022-12-14 05:46:28,852 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 [2022-12-14 05:46:28,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:28,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:28,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:28,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:28,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:28,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:28,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:28,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:28,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:28,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:28,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:28,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:28,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:28,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:28,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:28,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:28,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:28,907 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-12-14 05:46:28,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:28,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:28,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:28,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:28,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:28,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:28,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:28,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:28,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:28,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:28,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:28,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:28,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:28,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:28,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:28,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:28,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:28,951 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-12-14 05:46:29,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,022 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-12-14 05:46:29,050 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 [2022-12-14 05:46:29,070 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 [2022-12-14 05:46:29,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,117 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-12-14 05:46:29,117 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 74 [2022-12-14 05:46:29,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,179 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-12-14 05:46:29,180 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 [2022-12-14 05:46:29,651 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 [2022-12-14 05:46:29,665 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 [2022-12-14 05:46:29,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,702 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-12-14 05:46:29,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,729 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9896988 treesize of output 5376290 [2022-12-14 05:46:29,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,800 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9897003 treesize of output 5376293 [2022-12-14 05:46:29,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,838 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9897003 treesize of output 5376293 [2022-12-14 05:46:29,867 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 [2022-12-14 05:46:29,878 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 [2022-12-14 05:46:29,918 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 [2022-12-14 05:46:29,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:29,957 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-12-14 05:46:29,989 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 [2022-12-14 05:46:30,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:30,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:30,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:30,050 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-12-14 05:46:30,051 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 [2022-12-14 05:46:30,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:30,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:30,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:46:30,071 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 [2022-12-14 05:46:30,344 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 253 for LOIs [2022-12-14 05:46:30,422 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 05:46:36,352 WARN L233 SmtUtils]: Spent 5.01s on a formula simplification. DAG size of input: 235 DAG size of output: 220 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:46:43,512 WARN L233 SmtUtils]: Spent 5.07s on a formula simplification. DAG size of input: 251 DAG size of output: 236 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:46:53,873 WARN L233 SmtUtils]: Spent 6.26s on a formula simplification. DAG size of input: 262 DAG size of output: 248 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:47:06,418 WARN L233 SmtUtils]: Spent 6.40s on a formula simplification. DAG size of input: 284 DAG size of output: 262 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:47:18,880 WARN L233 SmtUtils]: Spent 6.30s on a formula simplification. DAG size of input: 284 DAG size of output: 262 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:47:20,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [2146238415] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:47:20,076 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-14 05:47:20,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [4, 4] total 17 [2022-12-14 05:47:20,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990084760] [2022-12-14 05:47:20,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:47:20,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 05:47:20,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:47:20,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 05:47:20,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=172, Unknown=9, NotChecked=0, Total=272 [2022-12-14 05:47:20,078 INFO L87 Difference]: Start difference. First operand 161 states and 194 transitions. Second operand has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 05:47:22,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 05:47:24,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 05:47:26,731 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 05:47:28,912 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 05:47:30,924 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 05:47:32,935 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 05:47:34,977 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 05:47:36,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 05:47:39,010 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 05:47:49,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 05:47:50,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:47:50,280 INFO L93 Difference]: Finished difference Result 315 states and 384 transitions. [2022-12-14 05:47:50,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-14 05:47:50,280 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 74 [2022-12-14 05:47:50,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:47:50,281 INFO L225 Difference]: With dead ends: 315 [2022-12-14 05:47:50,281 INFO L226 Difference]: Without dead ends: 166 [2022-12-14 05:47:50,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 203 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 49.7s TimeCoverageRelationStatistics Valid=91, Invalid=172, Unknown=9, NotChecked=0, Total=272 [2022-12-14 05:47:50,282 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 0 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 0 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.2s IncrementalHoareTripleChecker+Time [2022-12-14 05:47:50,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 611 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 378 Invalid, 9 Unknown, 0 Unchecked, 30.2s Time] [2022-12-14 05:47:50,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2022-12-14 05:47:50,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2022-12-14 05:47:50,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 150 states have (on average 1.1733333333333333) internal successors, (176), 156 states have internal predecessors, (176), 12 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (12), 7 states have call predecessors, (12), 12 states have call successors, (12) [2022-12-14 05:47:50,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 200 transitions. [2022-12-14 05:47:50,297 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 200 transitions. Word has length 74 [2022-12-14 05:47:50,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:47:50,298 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 200 transitions. [2022-12-14 05:47:50,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 05:47:50,298 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 200 transitions. [2022-12-14 05:47:50,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-12-14 05:47:50,299 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:47:50,299 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:47:50,309 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d367d205-a542-4b00-9b90-717be46cc1c8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 05:47:50,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d367d205-a542-4b00-9b90-717be46cc1c8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:47:50,501 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:47:50,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:47:50,503 INFO L85 PathProgramCache]: Analyzing trace with hash -102741374, now seen corresponding path program 1 times [2022-12-14 05:47:50,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:47:50,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507192298] [2022-12-14 05:47:50,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:47:50,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:47:50,647 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 05:47:50,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1396155941] [2022-12-14 05:47:50,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:47:50,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:47:50,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d367d205-a542-4b00-9b90-717be46cc1c8/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:47:50,648 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d367d205-a542-4b00-9b90-717be46cc1c8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:47:50,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d367d205-a542-4b00-9b90-717be46cc1c8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 05:47:51,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:47:51,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 2264 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 05:47:51,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:47:51,461 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 05:47:51,461 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:47:51,523 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 05:47:51,523 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:47:51,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507192298] [2022-12-14 05:47:51,523 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 05:47:51,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1396155941] [2022-12-14 05:47:51,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1396155941] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 05:47:51,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1615927096] [2022-12-14 05:47:51,527 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-12-14 05:47:51,527 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 05:47:51,528 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 05:47:51,528 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 05:47:51,528 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 05:47:51,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:51,586 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 05:47:51,586 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 [2022-12-14 05:47:51,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:51,596 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 05:47:51,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:51,619 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 [2022-12-14 05:47:51,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:51,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:51,651 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-14 05:47:51,651 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 [2022-12-14 05:47:51,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:51,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:51,689 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 05:47:51,690 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 [2022-12-14 05:47:51,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:51,702 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:47:51,702 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 39 [2022-12-14 05:47:51,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:51,716 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 05:47:51,905 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 [2022-12-14 05:47:51,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:51,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:51,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:51,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:51,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:51,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:51,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:51,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:51,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:51,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:51,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:51,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:51,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:51,937 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-12-14 05:47:51,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:51,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:51,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:51,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:51,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:51,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:51,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:51,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:51,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:51,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:51,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:51,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:51,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:51,962 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-12-14 05:47:51,983 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 [2022-12-14 05:47:52,003 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 [2022-12-14 05:47:52,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,039 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-12-14 05:47:52,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,071 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-12-14 05:47:52,089 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 [2022-12-14 05:47:52,121 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 [2022-12-14 05:47:52,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,173 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-12-14 05:47:52,173 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 74 [2022-12-14 05:47:52,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,236 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-12-14 05:47:52,236 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 [2022-12-14 05:47:52,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,268 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-12-14 05:47:52,294 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 [2022-12-14 05:47:52,394 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 [2022-12-14 05:47:52,398 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 [2022-12-14 05:47:52,403 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 [2022-12-14 05:47:52,422 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-12-14 05:47:52,427 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 65 [2022-12-14 05:47:52,434 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-12-14 05:47:52,448 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 [2022-12-14 05:47:52,452 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 [2022-12-14 05:47:52,457 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 [2022-12-14 05:47:52,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,517 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075032 treesize of output 5376218 [2022-12-14 05:47:52,542 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 [2022-12-14 05:47:52,563 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 [2022-12-14 05:47:52,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:47:52,752 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075032 treesize of output 5376218 [2022-12-14 05:47:52,770 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 [2022-12-14 05:47:52,785 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 [2022-12-14 05:47:54,022 INFO L217 Elim1Store]: Index analysis took 1008 ms [2022-12-14 05:47:59,110 WARN L233 SmtUtils]: Spent 5.09s on a formula simplification. DAG size of input: 109 DAG size of output: 31 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-14 05:47:59,110 INFO L321 Elim1Store]: treesize reduction 190, result has 18.1 percent of original size [2022-12-14 05:47:59,111 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 10752723 treesize of output 10752742 [2022-12-14 05:47:59,946 INFO L217 Elim1Store]: Index analysis took 727 ms [2022-12-14 05:48:00,528 INFO L321 Elim1Store]: treesize reduction 87, result has 5.4 percent of original size [2022-12-14 05:48:00,528 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 10752718 treesize of output 10752722 [2022-12-14 05:50:45,730 WARN L233 SmtUtils]: Spent 2.75m on a formula simplification. DAG size of input: 198 DAG size of output: 104 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-14 05:50:45,730 INFO L321 Elim1Store]: treesize reduction 1636, result has 23.4 percent of original size [2022-12-14 05:50:45,731 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 7904 treesize of output 5832 [2022-12-14 05:50:46,163 INFO L217 Elim1Store]: Index analysis took 180 ms [2022-12-14 05:52:33,270 WARN L233 SmtUtils]: Spent 1.79m on a formula simplification. DAG size of input: 90 DAG size of output: 45 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-14 05:52:33,270 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-12-14 05:52:33,271 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 7135 treesize of output 5975 [2022-12-14 05:52:38,359 INFO L217 Elim1Store]: Index analysis took 3753 ms